LIBOBJS+=fpu/softfloat-native.o
endif
CPPFLAGS+=-I$(SRC_PATH)/fpu
-
-ifeq ($(TARGET_ARCH), i386)
-LIBOBJS+=helper.o helper2.o
-endif
-
-ifeq ($(TARGET_ARCH), x86_64)
-LIBOBJS+=helper.o helper2.o
-endif
-
-ifeq ($(TARGET_BASE_ARCH), ppc)
-LIBOBJS+= op_helper.o helper.o
-endif
-
-ifeq ($(TARGET_BASE_ARCH), mips)
-LIBOBJS+= op_helper.o helper.o
-endif
-
-ifeq ($(TARGET_BASE_ARCH), sparc)
LIBOBJS+= op_helper.o helper.o
-endif
ifeq ($(TARGET_BASE_ARCH), arm)
-LIBOBJS+= op_helper.o helper.o neon_helper.o iwmmxt_helper.o
-endif
-
-ifeq ($(TARGET_BASE_ARCH), sh4)
-LIBOBJS+= op_helper.o helper.o
-endif
-
-ifeq ($(TARGET_BASE_ARCH), m68k)
-LIBOBJS+= op_helper.o helper.o
+LIBOBJS+= neon_helper.o iwmmxt_helper.o
endif
ifeq ($(TARGET_BASE_ARCH), alpha)
-LIBOBJS+= op_helper.o helper.o alpha_palcode.o
+LIBOBJS+= alpha_palcode.o
endif
ifeq ($(TARGET_BASE_ARCH), cris)
-LIBOBJS+= op_helper.o helper.o
LIBOBJS+= cris-dis.o
ifndef CONFIG_USER_ONLY
# HELPER_CFLAGS is used for all the code compiled with static register
# variables
-ifeq ($(TARGET_BASE_ARCH), i386)
-# XXX: rename helper.c to op_helper.c
-helper.o: helper.c
- $(CC) $(HELPER_CFLAGS) $(CPPFLAGS) $(CFLAGS) $(I386_CFLAGS) -c -o $@ $<
-else
op_helper.o: op_helper.c
- $(CC) $(HELPER_CFLAGS) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<
-endif
+ $(CC) $(HELPER_CFLAGS) $(CPPFLAGS) $(CFLAGS) $(I386_CFLAGS) -c -o $@ $<
cpu-exec.o: cpu-exec.c $(OPC_H)
$(CC) $(HELPER_CFLAGS) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<
/*
- * i386 helpers
+ * i386 helpers (without register variable usage)
*
* Copyright (c) 2003 Fabrice Bellard
*
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#define CPU_NO_GLOBAL_REGS
-#include "exec.h"
-#include "host-utils.h"
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+#include <signal.h>
+#include <assert.h>
-//#define DEBUG_PCALL
+#include "cpu.h"
+#include "exec-all.h"
+#include "svm.h"
+#include "qemu-common.h"
-#if 0
-#define raise_exception_err(a, b)\
-do {\
- if (logfile)\
- fprintf(logfile, "raise_exception line=%d\n", __LINE__);\
- (raise_exception_err)(a, b);\
-} while (0)
-#endif
-
-const uint8_t parity_table[256] = {
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
-};
+//#define DEBUG_MMU
-/* modulo 17 table */
-const uint8_t rclw_table[32] = {
- 0, 1, 2, 3, 4, 5, 6, 7,
- 8, 9,10,11,12,13,14,15,
- 16, 0, 1, 2, 3, 4, 5, 6,
- 7, 8, 9,10,11,12,13,14,
-};
+static int cpu_x86_register (CPUX86State *env, const char *cpu_model);
-/* modulo 9 table */
-const uint8_t rclb_table[32] = {
- 0, 1, 2, 3, 4, 5, 6, 7,
- 8, 0, 1, 2, 3, 4, 5, 6,
- 7, 8, 0, 1, 2, 3, 4, 5,
- 6, 7, 8, 0, 1, 2, 3, 4,
-};
+static void add_flagname_to_bitmaps(char *flagname, uint32_t *features,
+ uint32_t *ext_features,
+ uint32_t *ext2_features,
+ uint32_t *ext3_features)
+{
+ int i;
+ /* feature flags taken from "Intel Processor Identification and the CPUID
+ * Instruction" and AMD's "CPUID Specification". In cases of disagreement
+ * about feature names, the Linux name is used. */
+ const char *feature_name[] = {
+ "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
+ "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
+ "pat", "pse36", "pn" /* Intel psn */, "clflush" /* Intel clfsh */, NULL, "ds" /* Intel dts */, "acpi", "mmx",
+ "fxsr", "sse", "sse2", "ss", "ht" /* Intel htt */, "tm", "ia64", "pbe",
+ };
+ const char *ext_feature_name[] = {
+ "pni" /* Intel,AMD sse3 */, NULL, NULL, "monitor", "ds_cpl", "vmx", NULL /* Linux smx */, "est",
+ "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
+ NULL, NULL, "dca", NULL, NULL, NULL, NULL, "popcnt",
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ };
+ const char *ext2_feature_name[] = {
+ "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
+ "cx8" /* AMD CMPXCHG8B */, "apic", NULL, "syscall", "mttr", "pge", "mca", "cmov",
+ "pat", "pse36", NULL, NULL /* Linux mp */, "nx" /* Intel xd */, NULL, "mmxext", "mmx",
+ "fxsr", "fxsr_opt" /* AMD ffxsr */, "pdpe1gb" /* AMD Page1GB */, "rdtscp", NULL, "lm" /* Intel 64 */, "3dnowext", "3dnow",
+ };
+ const char *ext3_feature_name[] = {
+ "lahf_lm" /* AMD LahfSahf */, "cmp_legacy", "svm", "extapic" /* AMD ExtApicSpace */, "cr8legacy" /* AMD AltMovCr8 */, "abm", "sse4a", "misalignsse",
+ "3dnowprefetch", "osvw", NULL /* Linux ibs */, NULL, "skinit", "wdt", NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ };
+
+ for ( i = 0 ; i < 32 ; i++ )
+ if (feature_name[i] && !strcmp (flagname, feature_name[i])) {
+ *features |= 1 << i;
+ return;
+ }
+ for ( i = 0 ; i < 32 ; i++ )
+ if (ext_feature_name[i] && !strcmp (flagname, ext_feature_name[i])) {
+ *ext_features |= 1 << i;
+ return;
+ }
+ for ( i = 0 ; i < 32 ; i++ )
+ if (ext2_feature_name[i] && !strcmp (flagname, ext2_feature_name[i])) {
+ *ext2_features |= 1 << i;
+ return;
+ }
+ for ( i = 0 ; i < 32 ; i++ )
+ if (ext3_feature_name[i] && !strcmp (flagname, ext3_feature_name[i])) {
+ *ext3_features |= 1 << i;
+ return;
+ }
+ fprintf(stderr, "CPU feature %s not found\n", flagname);
+}
-const CPU86_LDouble f15rk[7] =
+CPUX86State *cpu_x86_init(const char *cpu_model)
{
- 0.00000000000000000000L,
- 1.00000000000000000000L,
- 3.14159265358979323851L, /*pi*/
- 0.30102999566398119523L, /*lg2*/
- 0.69314718055994530943L, /*ln2*/
- 1.44269504088896340739L, /*l2e*/
- 3.32192809488736234781L, /*l2t*/
-};
+ CPUX86State *env;
+ static int inited;
-/* broken thread support */
+ env = qemu_mallocz(sizeof(CPUX86State));
+ if (!env)
+ return NULL;
+ cpu_exec_init(env);
+ env->cpu_model_str = cpu_model;
-spinlock_t global_cpu_lock = SPIN_LOCK_UNLOCKED;
+ /* init various static tables */
+ if (!inited) {
+ inited = 1;
+ optimize_flags_init();
+ }
+ if (cpu_x86_register(env, cpu_model) < 0) {
+ cpu_x86_close(env);
+ return NULL;
+ }
+ cpu_reset(env);
+#ifdef USE_KQEMU
+ kqemu_init(env);
+#endif
+ return env;
+}
+
+typedef struct x86_def_t {
+ const char *name;
+ uint32_t level;
+ uint32_t vendor1, vendor2, vendor3;
+ int family;
+ int model;
+ int stepping;
+ uint32_t features, ext_features, ext2_features, ext3_features;
+ uint32_t xlevel;
+} x86_def_t;
+
+#define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
+#define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
+ CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX)
+#define PENTIUM2_FEATURES (PENTIUM_FEATURES | CPUID_PAE | CPUID_SEP | \
+ CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
+ CPUID_PSE36 | CPUID_FXSR)
+#define PENTIUM3_FEATURES (PENTIUM2_FEATURES | CPUID_SSE)
+#define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
+ CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \
+ CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \
+ CPUID_PAE | CPUID_SEP | CPUID_APIC)
+static x86_def_t x86_defs[] = {
+#ifdef TARGET_X86_64
+ {
+ .name = "qemu64",
+ .level = 2,
+ .vendor1 = 0x68747541, /* "Auth" */
+ .vendor2 = 0x69746e65, /* "enti" */
+ .vendor3 = 0x444d4163, /* "cAMD" */
+ .family = 6,
+ .model = 2,
+ .stepping = 3,
+ .features = PPRO_FEATURES |
+ /* these features are needed for Win64 and aren't fully implemented */
+ CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
+ /* this feature is needed for Solaris and isn't fully implemented */
+ CPUID_PSE36,
+ .ext_features = CPUID_EXT_SSE3,
+ .ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
+ CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX |
+ CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
+ .ext3_features = CPUID_EXT3_SVM,
+ .xlevel = 0x8000000A,
+ },
+#endif
+ {
+ .name = "qemu32",
+ .level = 2,
+ .family = 6,
+ .model = 3,
+ .stepping = 3,
+ .features = PPRO_FEATURES,
+ .ext_features = CPUID_EXT_SSE3,
+ .xlevel = 0,
+ },
+ {
+ .name = "486",
+ .level = 0,
+ .family = 4,
+ .model = 0,
+ .stepping = 0,
+ .features = I486_FEATURES,
+ .xlevel = 0,
+ },
+ {
+ .name = "pentium",
+ .level = 1,
+ .family = 5,
+ .model = 4,
+ .stepping = 3,
+ .features = PENTIUM_FEATURES,
+ .xlevel = 0,
+ },
+ {
+ .name = "pentium2",
+ .level = 2,
+ .family = 6,
+ .model = 5,
+ .stepping = 2,
+ .features = PENTIUM2_FEATURES,
+ .xlevel = 0,
+ },
+ {
+ .name = "pentium3",
+ .level = 2,
+ .family = 6,
+ .model = 7,
+ .stepping = 3,
+ .features = PENTIUM3_FEATURES,
+ .xlevel = 0,
+ },
+ {
+ .name = "athlon",
+ .level = 2,
+ .vendor1 = 0x68747541, /* "Auth" */
+ .vendor2 = 0x69746e65, /* "enti" */
+ .vendor3 = 0x444d4163, /* "cAMD" */
+ .family = 6,
+ .model = 2,
+ .stepping = 3,
+ .features = PPRO_FEATURES | PPRO_FEATURES | CPUID_PSE36 | CPUID_VME | CPUID_MTRR | CPUID_MCA,
+ .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_MMXEXT | CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
+ .xlevel = 0x80000008,
+ },
+};
-void helper_lock(void)
+static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
{
- spin_lock(&global_cpu_lock);
-}
+ unsigned int i;
+ x86_def_t *def;
-void helper_unlock(void)
-{
- spin_unlock(&global_cpu_lock);
-}
+ char *s = strdup(cpu_model);
+ char *featurestr, *name = strtok(s, ",");
+ uint32_t plus_features = 0, plus_ext_features = 0, plus_ext2_features = 0, plus_ext3_features = 0;
+ uint32_t minus_features = 0, minus_ext_features = 0, minus_ext2_features = 0, minus_ext3_features = 0;
+ int family = -1, model = -1, stepping = -1;
-void helper_write_eflags(target_ulong t0, uint32_t update_mask)
-{
- load_eflags(t0, update_mask);
+ def = NULL;
+ for (i = 0; i < sizeof(x86_defs) / sizeof(x86_def_t); i++) {
+ if (strcmp(name, x86_defs[i].name) == 0) {
+ def = &x86_defs[i];
+ break;
+ }
+ }
+ if (!def)
+ goto error;
+ memcpy(x86_cpu_def, def, sizeof(*def));
+
+ featurestr = strtok(NULL, ",");
+
+ while (featurestr) {
+ char *val;
+ if (featurestr[0] == '+') {
+ add_flagname_to_bitmaps(featurestr + 1, &plus_features, &plus_ext_features, &plus_ext2_features, &plus_ext3_features);
+ } else if (featurestr[0] == '-') {
+ add_flagname_to_bitmaps(featurestr + 1, &minus_features, &minus_ext_features, &minus_ext2_features, &minus_ext3_features);
+ } else if ((val = strchr(featurestr, '='))) {
+ *val = 0; val++;
+ if (!strcmp(featurestr, "family")) {
+ char *err;
+ family = strtol(val, &err, 10);
+ if (!*val || *err || family < 0) {
+ fprintf(stderr, "bad numerical value %s\n", val);
+ x86_cpu_def = 0;
+ goto error;
+ }
+ x86_cpu_def->family = family;
+ } else if (!strcmp(featurestr, "model")) {
+ char *err;
+ model = strtol(val, &err, 10);
+ if (!*val || *err || model < 0 || model > 0xf) {
+ fprintf(stderr, "bad numerical value %s\n", val);
+ x86_cpu_def = 0;
+ goto error;
+ }
+ x86_cpu_def->model = model;
+ } else if (!strcmp(featurestr, "stepping")) {
+ char *err;
+ stepping = strtol(val, &err, 10);
+ if (!*val || *err || stepping < 0 || stepping > 0xf) {
+ fprintf(stderr, "bad numerical value %s\n", val);
+ x86_cpu_def = 0;
+ goto error;
+ }
+ x86_cpu_def->stepping = stepping;
+ } else {
+ fprintf(stderr, "unrecognized feature %s\n", featurestr);
+ x86_cpu_def = 0;
+ goto error;
+ }
+ } else {
+ fprintf(stderr, "feature string `%s' not in format (+feature|-feature|feature=xyz)\n", featurestr);
+ x86_cpu_def = 0;
+ goto error;
+ }
+ featurestr = strtok(NULL, ",");
+ }
+ x86_cpu_def->features |= plus_features;
+ x86_cpu_def->ext_features |= plus_ext_features;
+ x86_cpu_def->ext2_features |= plus_ext2_features;
+ x86_cpu_def->ext3_features |= plus_ext3_features;
+ x86_cpu_def->features &= ~minus_features;
+ x86_cpu_def->ext_features &= ~minus_ext_features;
+ x86_cpu_def->ext2_features &= ~minus_ext2_features;
+ x86_cpu_def->ext3_features &= ~minus_ext3_features;
+ free(s);
+ return 0;
+
+error:
+ free(s);
+ return -1;
}
-target_ulong helper_read_eflags(void)
+void x86_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
{
- uint32_t eflags;
- eflags = cc_table[CC_OP].compute_all();
- eflags |= (DF & DF_MASK);
- eflags |= env->eflags & ~(VM_MASK | RF_MASK);
- return eflags;
+ unsigned int i;
+
+ for (i = 0; i < sizeof(x86_defs) / sizeof(x86_def_t); i++)
+ (*cpu_fprintf)(f, "x86 %16s\n", x86_defs[i].name);
}
-/* return non zero if error */
-static inline int load_segment(uint32_t *e1_ptr, uint32_t *e2_ptr,
- int selector)
+static int cpu_x86_register (CPUX86State *env, const char *cpu_model)
{
- SegmentCache *dt;
- int index;
- target_ulong ptr;
+ x86_def_t def1, *def = &def1;
- if (selector & 0x4)
- dt = &env->ldt;
- else
- dt = &env->gdt;
- index = selector & ~7;
- if ((index + 7) > dt->limit)
+ if (cpu_x86_find_by_name(def, cpu_model) < 0)
return -1;
- ptr = dt->base + index;
- *e1_ptr = ldl_kernel(ptr);
- *e2_ptr = ldl_kernel(ptr + 4);
+ if (def->vendor1) {
+ env->cpuid_vendor1 = def->vendor1;
+ env->cpuid_vendor2 = def->vendor2;
+ env->cpuid_vendor3 = def->vendor3;
+ } else {
+ env->cpuid_vendor1 = 0x756e6547; /* "Genu" */
+ env->cpuid_vendor2 = 0x49656e69; /* "ineI" */
+ env->cpuid_vendor3 = 0x6c65746e; /* "ntel" */
+ }
+ env->cpuid_level = def->level;
+ env->cpuid_version = (def->family << 8) | (def->model << 4) | def->stepping;
+ env->cpuid_features = def->features;
+ env->pat = 0x0007040600070406ULL;
+ env->cpuid_ext_features = def->ext_features;
+ env->cpuid_ext2_features = def->ext2_features;
+ env->cpuid_xlevel = def->xlevel;
+ env->cpuid_ext3_features = def->ext3_features;
+ {
+ const char *model_id = "QEMU Virtual CPU version " QEMU_VERSION;
+ int c, len, i;
+ len = strlen(model_id);
+ for(i = 0; i < 48; i++) {
+ if (i >= len)
+ c = '\0';
+ else
+ c = model_id[i];
+ env->cpuid_model[i >> 2] |= c << (8 * (i & 3));
+ }
+ }
return 0;
}
-static inline unsigned int get_seg_limit(uint32_t e1, uint32_t e2)
+/* NOTE: must be called outside the CPU execute loop */
+void cpu_reset(CPUX86State *env)
{
- unsigned int limit;
- limit = (e1 & 0xffff) | (e2 & 0x000f0000);
- if (e2 & DESC_G_MASK)
- limit = (limit << 12) | 0xfff;
- return limit;
-}
+ int i;
-static inline uint32_t get_seg_base(uint32_t e1, uint32_t e2)
-{
- return ((e1 >> 16) | ((e2 & 0xff) << 16) | (e2 & 0xff000000));
-}
+ memset(env, 0, offsetof(CPUX86State, breakpoints));
-static inline void load_seg_cache_raw_dt(SegmentCache *sc, uint32_t e1, uint32_t e2)
-{
- sc->base = get_seg_base(e1, e2);
- sc->limit = get_seg_limit(e1, e2);
- sc->flags = e2;
-}
+ tlb_flush(env, 1);
-/* init the segment cache in vm86 mode. */
-static inline void load_seg_vm(int seg, int selector)
-{
- selector &= 0xffff;
- cpu_x86_load_seg_cache(env, seg, selector,
- (selector << 4), 0xffff, 0);
-}
+ env->old_exception = -1;
-static inline void get_ss_esp_from_tss(uint32_t *ss_ptr,
- uint32_t *esp_ptr, int dpl)
-{
- int type, index, shift;
+ /* init to reset state */
-#if 0
- {
- int i;
- printf("TR: base=%p limit=%x\n", env->tr.base, env->tr.limit);
- for(i=0;i<env->tr.limit;i++) {
- printf("%02x ", env->tr.base[i]);
- if ((i & 7) == 7) printf("\n");
- }
- printf("\n");
- }
+#ifdef CONFIG_SOFTMMU
+ env->hflags |= HF_SOFTMMU_MASK;
#endif
+ env->hflags |= HF_GIF_MASK;
- if (!(env->tr.flags & DESC_P_MASK))
- cpu_abort(env, "invalid tss");
- type = (env->tr.flags >> DESC_TYPE_SHIFT) & 0xf;
- if ((type & 7) != 1)
- cpu_abort(env, "invalid tss type");
- shift = type >> 3;
- index = (dpl * 4 + 2) << shift;
- if (index + (4 << shift) - 1 > env->tr.limit)
- raise_exception_err(EXCP0A_TSS, env->tr.selector & 0xfffc);
- if (shift == 0) {
- *esp_ptr = lduw_kernel(env->tr.base + index);
- *ss_ptr = lduw_kernel(env->tr.base + index + 2);
- } else {
- *esp_ptr = ldl_kernel(env->tr.base + index);
- *ss_ptr = lduw_kernel(env->tr.base + index + 4);
- }
-}
-
-/* XXX: merge with load_seg() */
-static void tss_load_seg(int seg_reg, int selector)
-{
- uint32_t e1, e2;
- int rpl, dpl, cpl;
+ cpu_x86_update_cr0(env, 0x60000010);
+ env->a20_mask = ~0x0;
+ env->smbase = 0x30000;
- if ((selector & 0xfffc) != 0) {
- if (load_segment(&e1, &e2, selector) != 0)
- raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
- if (!(e2 & DESC_S_MASK))
- raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
- rpl = selector & 3;
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- cpl = env->hflags & HF_CPL_MASK;
- if (seg_reg == R_CS) {
- if (!(e2 & DESC_CS_MASK))
- raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
- /* XXX: is it correct ? */
- if (dpl != rpl)
- raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
- if ((e2 & DESC_C_MASK) && dpl > rpl)
- raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
- } else if (seg_reg == R_SS) {
- /* SS must be writable data */
- if ((e2 & DESC_CS_MASK) || !(e2 & DESC_W_MASK))
- raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
- if (dpl != cpl || dpl != rpl)
- raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
- } else {
- /* not readable code */
- if ((e2 & DESC_CS_MASK) && !(e2 & DESC_R_MASK))
- raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
- /* if data or non conforming code, checks the rights */
- if (((e2 >> DESC_TYPE_SHIFT) & 0xf) < 12) {
- if (dpl < cpl || dpl < rpl)
- raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
- }
- }
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
- cpu_x86_load_seg_cache(env, seg_reg, selector,
- get_seg_base(e1, e2),
- get_seg_limit(e1, e2),
- e2);
- } else {
- if (seg_reg == R_SS || seg_reg == R_CS)
- raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
- }
-}
+ env->idt.limit = 0xffff;
+ env->gdt.limit = 0xffff;
+ env->ldt.limit = 0xffff;
+ env->ldt.flags = DESC_P_MASK;
+ env->tr.limit = 0xffff;
+ env->tr.flags = DESC_P_MASK;
-#define SWITCH_TSS_JMP 0
-#define SWITCH_TSS_IRET 1
-#define SWITCH_TSS_CALL 2
+ cpu_x86_load_seg_cache(env, R_CS, 0xf000, 0xffff0000, 0xffff, 0);
+ cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffff, 0);
+ cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffff, 0);
+ cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffff, 0);
+ cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffff, 0);
+ cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffff, 0);
-/* XXX: restore CPU state in registers (PowerPC case) */
-static void switch_tss(int tss_selector,
- uint32_t e1, uint32_t e2, int source,
- uint32_t next_eip)
-{
- int tss_limit, tss_limit_max, type, old_tss_limit_max, old_type, v1, v2, i;
- target_ulong tss_base;
- uint32_t new_regs[8], new_segs[6];
- uint32_t new_eflags, new_eip, new_cr3, new_ldt, new_trap;
- uint32_t old_eflags, eflags_mask;
- SegmentCache *dt;
- int index;
- target_ulong ptr;
+ env->eip = 0xfff0;
+ env->regs[R_EDX] = env->cpuid_version;
- type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
-#ifdef DEBUG_PCALL
- if (loglevel & CPU_LOG_PCALL)
- fprintf(logfile, "switch_tss: sel=0x%04x type=%d src=%d\n", tss_selector, type, source);
-#endif
+ env->eflags = 0x2;
- /* if task gate, we read the TSS segment and we load it */
- if (type == 5) {
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, tss_selector & 0xfffc);
- tss_selector = e1 >> 16;
- if (tss_selector & 4)
- raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
- if (load_segment(&e1, &e2, tss_selector) != 0)
- raise_exception_err(EXCP0D_GPF, tss_selector & 0xfffc);
- if (e2 & DESC_S_MASK)
- raise_exception_err(EXCP0D_GPF, tss_selector & 0xfffc);
- type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
- if ((type & 7) != 1)
- raise_exception_err(EXCP0D_GPF, tss_selector & 0xfffc);
- }
+ /* FPU init */
+ for(i = 0;i < 8; i++)
+ env->fptags[i] = 1;
+ env->fpuc = 0x37f;
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, tss_selector & 0xfffc);
+ env->mxcsr = 0x1f80;
+}
- if (type & 8)
- tss_limit_max = 103;
- else
- tss_limit_max = 43;
- tss_limit = get_seg_limit(e1, e2);
- tss_base = get_seg_base(e1, e2);
- if ((tss_selector & 4) != 0 ||
- tss_limit < tss_limit_max)
- raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
- old_type = (env->tr.flags >> DESC_TYPE_SHIFT) & 0xf;
- if (old_type & 8)
- old_tss_limit_max = 103;
- else
- old_tss_limit_max = 43;
+void cpu_x86_close(CPUX86State *env)
+{
+ free(env);
+}
- /* read all the registers from the new TSS */
- if (type & 8) {
- /* 32 bit */
- new_cr3 = ldl_kernel(tss_base + 0x1c);
- new_eip = ldl_kernel(tss_base + 0x20);
- new_eflags = ldl_kernel(tss_base + 0x24);
- for(i = 0; i < 8; i++)
- new_regs[i] = ldl_kernel(tss_base + (0x28 + i * 4));
- for(i = 0; i < 6; i++)
- new_segs[i] = lduw_kernel(tss_base + (0x48 + i * 4));
- new_ldt = lduw_kernel(tss_base + 0x60);
- new_trap = ldl_kernel(tss_base + 0x64);
- } else {
- /* 16 bit */
- new_cr3 = 0;
- new_eip = lduw_kernel(tss_base + 0x0e);
- new_eflags = lduw_kernel(tss_base + 0x10);
- for(i = 0; i < 8; i++)
- new_regs[i] = lduw_kernel(tss_base + (0x12 + i * 2)) | 0xffff0000;
- for(i = 0; i < 4; i++)
- new_segs[i] = lduw_kernel(tss_base + (0x22 + i * 4));
- new_ldt = lduw_kernel(tss_base + 0x2a);
- new_segs[R_FS] = 0;
- new_segs[R_GS] = 0;
- new_trap = 0;
- }
+/***********************************************************/
+/* x86 debug */
- /* NOTE: we must avoid memory exceptions during the task switch,
- so we make dummy accesses before */
- /* XXX: it can still fail in some cases, so a bigger hack is
- necessary to valid the TLB after having done the accesses */
+static const char *cc_op_str[] = {
+ "DYNAMIC",
+ "EFLAGS",
- v1 = ldub_kernel(env->tr.base);
- v2 = ldub_kernel(env->tr.base + old_tss_limit_max);
- stb_kernel(env->tr.base, v1);
- stb_kernel(env->tr.base + old_tss_limit_max, v2);
+ "MULB",
+ "MULW",
+ "MULL",
+ "MULQ",
- /* clear busy bit (it is restartable) */
- if (source == SWITCH_TSS_JMP || source == SWITCH_TSS_IRET) {
- target_ulong ptr;
- uint32_t e2;
- ptr = env->gdt.base + (env->tr.selector & ~7);
- e2 = ldl_kernel(ptr + 4);
- e2 &= ~DESC_TSS_BUSY_MASK;
- stl_kernel(ptr + 4, e2);
- }
- old_eflags = compute_eflags();
- if (source == SWITCH_TSS_IRET)
- old_eflags &= ~NT_MASK;
+ "ADDB",
+ "ADDW",
+ "ADDL",
+ "ADDQ",
- /* save the current state in the old TSS */
- if (type & 8) {
- /* 32 bit */
- stl_kernel(env->tr.base + 0x20, next_eip);
- stl_kernel(env->tr.base + 0x24, old_eflags);
- stl_kernel(env->tr.base + (0x28 + 0 * 4), EAX);
- stl_kernel(env->tr.base + (0x28 + 1 * 4), ECX);
- stl_kernel(env->tr.base + (0x28 + 2 * 4), EDX);
- stl_kernel(env->tr.base + (0x28 + 3 * 4), EBX);
- stl_kernel(env->tr.base + (0x28 + 4 * 4), ESP);
- stl_kernel(env->tr.base + (0x28 + 5 * 4), EBP);
- stl_kernel(env->tr.base + (0x28 + 6 * 4), ESI);
- stl_kernel(env->tr.base + (0x28 + 7 * 4), EDI);
- for(i = 0; i < 6; i++)
- stw_kernel(env->tr.base + (0x48 + i * 4), env->segs[i].selector);
- } else {
- /* 16 bit */
- stw_kernel(env->tr.base + 0x0e, next_eip);
- stw_kernel(env->tr.base + 0x10, old_eflags);
- stw_kernel(env->tr.base + (0x12 + 0 * 2), EAX);
- stw_kernel(env->tr.base + (0x12 + 1 * 2), ECX);
- stw_kernel(env->tr.base + (0x12 + 2 * 2), EDX);
- stw_kernel(env->tr.base + (0x12 + 3 * 2), EBX);
- stw_kernel(env->tr.base + (0x12 + 4 * 2), ESP);
- stw_kernel(env->tr.base + (0x12 + 5 * 2), EBP);
- stw_kernel(env->tr.base + (0x12 + 6 * 2), ESI);
- stw_kernel(env->tr.base + (0x12 + 7 * 2), EDI);
- for(i = 0; i < 4; i++)
- stw_kernel(env->tr.base + (0x22 + i * 4), env->segs[i].selector);
- }
+ "ADCB",
+ "ADCW",
+ "ADCL",
+ "ADCQ",
- /* now if an exception occurs, it will occurs in the next task
- context */
+ "SUBB",
+ "SUBW",
+ "SUBL",
+ "SUBQ",
- if (source == SWITCH_TSS_CALL) {
- stw_kernel(tss_base, env->tr.selector);
- new_eflags |= NT_MASK;
- }
+ "SBBB",
+ "SBBW",
+ "SBBL",
+ "SBBQ",
- /* set busy bit */
- if (source == SWITCH_TSS_JMP || source == SWITCH_TSS_CALL) {
- target_ulong ptr;
- uint32_t e2;
- ptr = env->gdt.base + (tss_selector & ~7);
- e2 = ldl_kernel(ptr + 4);
- e2 |= DESC_TSS_BUSY_MASK;
- stl_kernel(ptr + 4, e2);
- }
+ "LOGICB",
+ "LOGICW",
+ "LOGICL",
+ "LOGICQ",
- /* set the new CPU state */
- /* from this point, any exception which occurs can give problems */
- env->cr[0] |= CR0_TS_MASK;
- env->hflags |= HF_TS_MASK;
- env->tr.selector = tss_selector;
- env->tr.base = tss_base;
- env->tr.limit = tss_limit;
- env->tr.flags = e2 & ~DESC_TSS_BUSY_MASK;
+ "INCB",
+ "INCW",
+ "INCL",
+ "INCQ",
- if ((type & 8) && (env->cr[0] & CR0_PG_MASK)) {
- cpu_x86_update_cr3(env, new_cr3);
- }
+ "DECB",
+ "DECW",
+ "DECL",
+ "DECQ",
- /* load all registers without an exception, then reload them with
- possible exception */
- env->eip = new_eip;
- eflags_mask = TF_MASK | AC_MASK | ID_MASK |
- IF_MASK | IOPL_MASK | VM_MASK | RF_MASK | NT_MASK;
- if (!(type & 8))
- eflags_mask &= 0xffff;
- load_eflags(new_eflags, eflags_mask);
- /* XXX: what to do in 16 bit case ? */
- EAX = new_regs[0];
- ECX = new_regs[1];
- EDX = new_regs[2];
- EBX = new_regs[3];
- ESP = new_regs[4];
- EBP = new_regs[5];
- ESI = new_regs[6];
- EDI = new_regs[7];
- if (new_eflags & VM_MASK) {
- for(i = 0; i < 6; i++)
- load_seg_vm(i, new_segs[i]);
- /* in vm86, CPL is always 3 */
- cpu_x86_set_cpl(env, 3);
- } else {
- /* CPL is set the RPL of CS */
- cpu_x86_set_cpl(env, new_segs[R_CS] & 3);
- /* first just selectors as the rest may trigger exceptions */
- for(i = 0; i < 6; i++)
- cpu_x86_load_seg_cache(env, i, new_segs[i], 0, 0, 0);
- }
+ "SHLB",
+ "SHLW",
+ "SHLL",
+ "SHLQ",
- env->ldt.selector = new_ldt & ~4;
- env->ldt.base = 0;
- env->ldt.limit = 0;
- env->ldt.flags = 0;
+ "SARB",
+ "SARW",
+ "SARL",
+ "SARQ",
+};
- /* load the LDT */
- if (new_ldt & 4)
- raise_exception_err(EXCP0A_TSS, new_ldt & 0xfffc);
+void cpu_dump_state(CPUState *env, FILE *f,
+ int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
+ int flags)
+{
+ int eflags, i, nb;
+ char cc_op_name[32];
+ static const char *seg_name[6] = { "ES", "CS", "SS", "DS", "FS", "GS" };
- if ((new_ldt & 0xfffc) != 0) {
- dt = &env->gdt;
- index = new_ldt & ~7;
- if ((index + 7) > dt->limit)
- raise_exception_err(EXCP0A_TSS, new_ldt & 0xfffc);
- ptr = dt->base + index;
- e1 = ldl_kernel(ptr);
- e2 = ldl_kernel(ptr + 4);
- if ((e2 & DESC_S_MASK) || ((e2 >> DESC_TYPE_SHIFT) & 0xf) != 2)
- raise_exception_err(EXCP0A_TSS, new_ldt & 0xfffc);
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0A_TSS, new_ldt & 0xfffc);
- load_seg_cache_raw_dt(&env->ldt, e1, e2);
+ eflags = env->eflags;
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_CS64_MASK) {
+ cpu_fprintf(f,
+ "RAX=%016" PRIx64 " RBX=%016" PRIx64 " RCX=%016" PRIx64 " RDX=%016" PRIx64 "\n"
+ "RSI=%016" PRIx64 " RDI=%016" PRIx64 " RBP=%016" PRIx64 " RSP=%016" PRIx64 "\n"
+ "R8 =%016" PRIx64 " R9 =%016" PRIx64 " R10=%016" PRIx64 " R11=%016" PRIx64 "\n"
+ "R12=%016" PRIx64 " R13=%016" PRIx64 " R14=%016" PRIx64 " R15=%016" PRIx64 "\n"
+ "RIP=%016" PRIx64 " RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
+ env->regs[R_EAX],
+ env->regs[R_EBX],
+ env->regs[R_ECX],
+ env->regs[R_EDX],
+ env->regs[R_ESI],
+ env->regs[R_EDI],
+ env->regs[R_EBP],
+ env->regs[R_ESP],
+ env->regs[8],
+ env->regs[9],
+ env->regs[10],
+ env->regs[11],
+ env->regs[12],
+ env->regs[13],
+ env->regs[14],
+ env->regs[15],
+ env->eip, eflags,
+ eflags & DF_MASK ? 'D' : '-',
+ eflags & CC_O ? 'O' : '-',
+ eflags & CC_S ? 'S' : '-',
+ eflags & CC_Z ? 'Z' : '-',
+ eflags & CC_A ? 'A' : '-',
+ eflags & CC_P ? 'P' : '-',
+ eflags & CC_C ? 'C' : '-',
+ env->hflags & HF_CPL_MASK,
+ (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
+ (int)(env->a20_mask >> 20) & 1,
+ (env->hflags >> HF_SMM_SHIFT) & 1,
+ (env->hflags >> HF_HALTED_SHIFT) & 1);
+ } else
+#endif
+ {
+ cpu_fprintf(f, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
+ "ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
+ "EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
+ (uint32_t)env->regs[R_EAX],
+ (uint32_t)env->regs[R_EBX],
+ (uint32_t)env->regs[R_ECX],
+ (uint32_t)env->regs[R_EDX],
+ (uint32_t)env->regs[R_ESI],
+ (uint32_t)env->regs[R_EDI],
+ (uint32_t)env->regs[R_EBP],
+ (uint32_t)env->regs[R_ESP],
+ (uint32_t)env->eip, eflags,
+ eflags & DF_MASK ? 'D' : '-',
+ eflags & CC_O ? 'O' : '-',
+ eflags & CC_S ? 'S' : '-',
+ eflags & CC_Z ? 'Z' : '-',
+ eflags & CC_A ? 'A' : '-',
+ eflags & CC_P ? 'P' : '-',
+ eflags & CC_C ? 'C' : '-',
+ env->hflags & HF_CPL_MASK,
+ (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
+ (int)(env->a20_mask >> 20) & 1,
+ (env->hflags >> HF_SMM_SHIFT) & 1,
+ (env->hflags >> HF_HALTED_SHIFT) & 1);
}
- /* load the segments */
- if (!(new_eflags & VM_MASK)) {
- tss_load_seg(R_CS, new_segs[R_CS]);
- tss_load_seg(R_SS, new_segs[R_SS]);
- tss_load_seg(R_ES, new_segs[R_ES]);
- tss_load_seg(R_DS, new_segs[R_DS]);
- tss_load_seg(R_FS, new_segs[R_FS]);
- tss_load_seg(R_GS, new_segs[R_GS]);
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_LMA_MASK) {
+ for(i = 0; i < 6; i++) {
+ SegmentCache *sc = &env->segs[i];
+ cpu_fprintf(f, "%s =%04x %016" PRIx64 " %08x %08x\n",
+ seg_name[i],
+ sc->selector,
+ sc->base,
+ sc->limit,
+ sc->flags);
+ }
+ cpu_fprintf(f, "LDT=%04x %016" PRIx64 " %08x %08x\n",
+ env->ldt.selector,
+ env->ldt.base,
+ env->ldt.limit,
+ env->ldt.flags);
+ cpu_fprintf(f, "TR =%04x %016" PRIx64 " %08x %08x\n",
+ env->tr.selector,
+ env->tr.base,
+ env->tr.limit,
+ env->tr.flags);
+ cpu_fprintf(f, "GDT= %016" PRIx64 " %08x\n",
+ env->gdt.base, env->gdt.limit);
+ cpu_fprintf(f, "IDT= %016" PRIx64 " %08x\n",
+ env->idt.base, env->idt.limit);
+ cpu_fprintf(f, "CR0=%08x CR2=%016" PRIx64 " CR3=%016" PRIx64 " CR4=%08x\n",
+ (uint32_t)env->cr[0],
+ env->cr[2],
+ env->cr[3],
+ (uint32_t)env->cr[4]);
+ } else
+#endif
+ {
+ for(i = 0; i < 6; i++) {
+ SegmentCache *sc = &env->segs[i];
+ cpu_fprintf(f, "%s =%04x %08x %08x %08x\n",
+ seg_name[i],
+ sc->selector,
+ (uint32_t)sc->base,
+ sc->limit,
+ sc->flags);
+ }
+ cpu_fprintf(f, "LDT=%04x %08x %08x %08x\n",
+ env->ldt.selector,
+ (uint32_t)env->ldt.base,
+ env->ldt.limit,
+ env->ldt.flags);
+ cpu_fprintf(f, "TR =%04x %08x %08x %08x\n",
+ env->tr.selector,
+ (uint32_t)env->tr.base,
+ env->tr.limit,
+ env->tr.flags);
+ cpu_fprintf(f, "GDT= %08x %08x\n",
+ (uint32_t)env->gdt.base, env->gdt.limit);
+ cpu_fprintf(f, "IDT= %08x %08x\n",
+ (uint32_t)env->idt.base, env->idt.limit);
+ cpu_fprintf(f, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
+ (uint32_t)env->cr[0],
+ (uint32_t)env->cr[2],
+ (uint32_t)env->cr[3],
+ (uint32_t)env->cr[4]);
+ }
+ if (flags & X86_DUMP_CCOP) {
+ if ((unsigned)env->cc_op < CC_OP_NB)
+ snprintf(cc_op_name, sizeof(cc_op_name), "%s", cc_op_str[env->cc_op]);
+ else
+ snprintf(cc_op_name, sizeof(cc_op_name), "[%d]", env->cc_op);
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_CS64_MASK) {
+ cpu_fprintf(f, "CCS=%016" PRIx64 " CCD=%016" PRIx64 " CCO=%-8s\n",
+ env->cc_src, env->cc_dst,
+ cc_op_name);
+ } else
+#endif
+ {
+ cpu_fprintf(f, "CCS=%08x CCD=%08x CCO=%-8s\n",
+ (uint32_t)env->cc_src, (uint32_t)env->cc_dst,
+ cc_op_name);
+ }
}
-
- /* check that EIP is in the CS segment limits */
- if (new_eip > env->segs[R_CS].limit) {
- /* XXX: different exception if CALL ? */
- raise_exception_err(EXCP0D_GPF, 0);
+ if (flags & X86_DUMP_FPU) {
+ int fptag;
+ fptag = 0;
+ for(i = 0; i < 8; i++) {
+ fptag |= ((!env->fptags[i]) << i);
+ }
+ cpu_fprintf(f, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
+ env->fpuc,
+ (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11,
+ env->fpstt,
+ fptag,
+ env->mxcsr);
+ for(i=0;i<8;i++) {
+#if defined(USE_X86LDOUBLE)
+ union {
+ long double d;
+ struct {
+ uint64_t lower;
+ uint16_t upper;
+ } l;
+ } tmp;
+ tmp.d = env->fpregs[i].d;
+ cpu_fprintf(f, "FPR%d=%016" PRIx64 " %04x",
+ i, tmp.l.lower, tmp.l.upper);
+#else
+ cpu_fprintf(f, "FPR%d=%016" PRIx64,
+ i, env->fpregs[i].mmx.q);
+#endif
+ if ((i & 1) == 1)
+ cpu_fprintf(f, "\n");
+ else
+ cpu_fprintf(f, " ");
+ }
+ if (env->hflags & HF_CS64_MASK)
+ nb = 16;
+ else
+ nb = 8;
+ for(i=0;i<nb;i++) {
+ cpu_fprintf(f, "XMM%02d=%08x%08x%08x%08x",
+ i,
+ env->xmm_regs[i].XMM_L(3),
+ env->xmm_regs[i].XMM_L(2),
+ env->xmm_regs[i].XMM_L(1),
+ env->xmm_regs[i].XMM_L(0));
+ if ((i & 1) == 1)
+ cpu_fprintf(f, "\n");
+ else
+ cpu_fprintf(f, " ");
+ }
}
}
-/* check if Port I/O is allowed in TSS */
-static inline void check_io(int addr, int size)
+/***********************************************************/
+/* x86 mmu */
+/* XXX: add PGE support */
+
+void cpu_x86_set_a20(CPUX86State *env, int a20_state)
{
- int io_offset, val, mask;
+ a20_state = (a20_state != 0);
+ if (a20_state != ((env->a20_mask >> 20) & 1)) {
+#if defined(DEBUG_MMU)
+ printf("A20 update: a20=%d\n", a20_state);
+#endif
+ /* if the cpu is currently executing code, we must unlink it and
+ all the potentially executing TB */
+ cpu_interrupt(env, CPU_INTERRUPT_EXITTB);
- /* TSS must be a valid 32 bit one */
- if (!(env->tr.flags & DESC_P_MASK) ||
- ((env->tr.flags >> DESC_TYPE_SHIFT) & 0xf) != 9 ||
- env->tr.limit < 103)
- goto fail;
- io_offset = lduw_kernel(env->tr.base + 0x66);
- io_offset += (addr >> 3);
- /* Note: the check needs two bytes */
- if ((io_offset + 1) > env->tr.limit)
- goto fail;
- val = lduw_kernel(env->tr.base + io_offset);
- val >>= (addr & 7);
- mask = (1 << size) - 1;
- /* all bits must be zero to allow the I/O */
- if ((val & mask) != 0) {
- fail:
- raise_exception_err(EXCP0D_GPF, 0);
+ /* when a20 is changed, all the MMU mappings are invalid, so
+ we must flush everything */
+ tlb_flush(env, 1);
+ env->a20_mask = (~0x100000) | (a20_state << 20);
}
}
-void helper_check_iob(uint32_t t0)
+void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0)
{
- check_io(t0, 1);
-}
+ int pe_state;
-void helper_check_iow(uint32_t t0)
-{
- check_io(t0, 2);
-}
+#if defined(DEBUG_MMU)
+ printf("CR0 update: CR0=0x%08x\n", new_cr0);
+#endif
+ if ((new_cr0 & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK)) !=
+ (env->cr[0] & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK))) {
+ tlb_flush(env, 1);
+ }
-void helper_check_iol(uint32_t t0)
-{
- check_io(t0, 4);
-}
+#ifdef TARGET_X86_64
+ if (!(env->cr[0] & CR0_PG_MASK) && (new_cr0 & CR0_PG_MASK) &&
+ (env->efer & MSR_EFER_LME)) {
+ /* enter in long mode */
+ /* XXX: generate an exception */
+ if (!(env->cr[4] & CR4_PAE_MASK))
+ return;
+ env->efer |= MSR_EFER_LMA;
+ env->hflags |= HF_LMA_MASK;
+ } else if ((env->cr[0] & CR0_PG_MASK) && !(new_cr0 & CR0_PG_MASK) &&
+ (env->efer & MSR_EFER_LMA)) {
+ /* exit long mode */
+ env->efer &= ~MSR_EFER_LMA;
+ env->hflags &= ~(HF_LMA_MASK | HF_CS64_MASK);
+ env->eip &= 0xffffffff;
+ }
+#endif
+ env->cr[0] = new_cr0 | CR0_ET_MASK;
-void helper_outb(uint32_t port, uint32_t data)
-{
- cpu_outb(env, port, data & 0xff);
+ /* update PE flag in hidden flags */
+ pe_state = (env->cr[0] & CR0_PE_MASK);
+ env->hflags = (env->hflags & ~HF_PE_MASK) | (pe_state << HF_PE_SHIFT);
+ /* ensure that ADDSEG is always set in real mode */
+ env->hflags |= ((pe_state ^ 1) << HF_ADDSEG_SHIFT);
+ /* update FPU flags */
+ env->hflags = (env->hflags & ~(HF_MP_MASK | HF_EM_MASK | HF_TS_MASK)) |
+ ((new_cr0 << (HF_MP_SHIFT - 1)) & (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK));
}
-target_ulong helper_inb(uint32_t port)
+/* XXX: in legacy PAE mode, generate a GPF if reserved bits are set in
+ the PDPT */
+void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3)
{
- return cpu_inb(env, port);
+ env->cr[3] = new_cr3;
+ if (env->cr[0] & CR0_PG_MASK) {
+#if defined(DEBUG_MMU)
+ printf("CR3 update: CR3=" TARGET_FMT_lx "\n", new_cr3);
+#endif
+ tlb_flush(env, 0);
+ }
}
-void helper_outw(uint32_t port, uint32_t data)
+void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4)
{
- cpu_outw(env, port, data & 0xffff);
-}
+#if defined(DEBUG_MMU)
+ printf("CR4 update: CR4=%08x\n", (uint32_t)env->cr[4]);
+#endif
+ if ((new_cr4 & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK)) !=
+ (env->cr[4] & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK))) {
+ tlb_flush(env, 1);
+ }
+ /* SSE handling */
+ if (!(env->cpuid_features & CPUID_SSE))
+ new_cr4 &= ~CR4_OSFXSR_MASK;
+ if (new_cr4 & CR4_OSFXSR_MASK)
+ env->hflags |= HF_OSFXSR_MASK;
+ else
+ env->hflags &= ~HF_OSFXSR_MASK;
-target_ulong helper_inw(uint32_t port)
-{
- return cpu_inw(env, port);
+ env->cr[4] = new_cr4;
}
-void helper_outl(uint32_t port, uint32_t data)
+/* XXX: also flush 4MB pages */
+void cpu_x86_flush_tlb(CPUX86State *env, target_ulong addr)
{
- cpu_outl(env, port, data);
+ tlb_flush_page(env, addr);
}
-target_ulong helper_inl(uint32_t port)
+#if defined(CONFIG_USER_ONLY)
+
+int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
+ int is_write, int mmu_idx, int is_softmmu)
{
- return cpu_inl(env, port);
+ /* user mode only emulation */
+ is_write &= 1;
+ env->cr[2] = addr;
+ env->error_code = (is_write << PG_ERROR_W_BIT);
+ env->error_code |= PG_ERROR_U_MASK;
+ env->exception_index = EXCP0E_PAGE;
+ return 1;
}
-static inline unsigned int get_sp_mask(unsigned int e2)
+target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
{
- if (e2 & DESC_B_MASK)
- return 0xffffffff;
- else
- return 0xffff;
+ return addr;
}
-#ifdef TARGET_X86_64
-#define SET_ESP(val, sp_mask)\
-do {\
- if ((sp_mask) == 0xffff)\
- ESP = (ESP & ~0xffff) | ((val) & 0xffff);\
- else if ((sp_mask) == 0xffffffffLL)\
- ESP = (uint32_t)(val);\
- else\
- ESP = (val);\
-} while (0)
#else
-#define SET_ESP(val, sp_mask) ESP = (ESP & ~(sp_mask)) | ((val) & (sp_mask))
-#endif
-
-/* XXX: add a is_user flag to have proper security support */
-#define PUSHW(ssp, sp, sp_mask, val)\
-{\
- sp -= 2;\
- stw_kernel((ssp) + (sp & (sp_mask)), (val));\
-}
-
-#define PUSHL(ssp, sp, sp_mask, val)\
-{\
- sp -= 4;\
- stl_kernel((ssp) + (sp & (sp_mask)), (val));\
-}
-#define POPW(ssp, sp, sp_mask, val)\
-{\
- val = lduw_kernel((ssp) + (sp & (sp_mask)));\
- sp += 2;\
-}
-
-#define POPL(ssp, sp, sp_mask, val)\
-{\
- val = (uint32_t)ldl_kernel((ssp) + (sp & (sp_mask)));\
- sp += 4;\
-}
-
-/* protected mode interrupt */
-static void do_interrupt_protected(int intno, int is_int, int error_code,
- unsigned int next_eip, int is_hw)
-{
- SegmentCache *dt;
- target_ulong ptr, ssp;
- int type, dpl, selector, ss_dpl, cpl;
- int has_error_code, new_stack, shift;
- uint32_t e1, e2, offset, ss, esp, ss_e1, ss_e2;
- uint32_t old_eip, sp_mask;
- int svm_should_check = 1;
+/* XXX: This value should match the one returned by CPUID
+ * and in exec.c */
+#if defined(USE_KQEMU)
+#define PHYS_ADDR_MASK 0xfffff000L
+#else
+# if defined(TARGET_X86_64)
+# define PHYS_ADDR_MASK 0xfffffff000L
+# else
+# define PHYS_ADDR_MASK 0xffffff000L
+# endif
+#endif
+
+/* return value:
+ -1 = cannot handle fault
+ 0 = nothing more to do
+ 1 = generate PF fault
+ 2 = soft MMU activation required for this block
+*/
+int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
+ int is_write1, int mmu_idx, int is_softmmu)
+{
+ uint64_t ptep, pte;
+ target_ulong pde_addr, pte_addr;
+ int error_code, is_dirty, prot, page_size, ret, is_write, is_user;
+ target_phys_addr_t paddr;
+ uint32_t page_offset;
+ target_ulong vaddr, virt_addr;
+
+ is_user = mmu_idx == MMU_USER_IDX;
+#if defined(DEBUG_MMU)
+ printf("MMU fault: addr=" TARGET_FMT_lx " w=%d u=%d eip=" TARGET_FMT_lx "\n",
+ addr, is_write1, is_user, env->eip);
+#endif
+ is_write = is_write1 & 1;
+
+ if (!(env->cr[0] & CR0_PG_MASK)) {
+ pte = addr;
+ virt_addr = addr & TARGET_PAGE_MASK;
+ prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
+ page_size = 4096;
+ goto do_mapping;
+ }
+
+ if (env->cr[4] & CR4_PAE_MASK) {
+ uint64_t pde, pdpe;
+ target_ulong pdpe_addr;
- if ((env->intercept & INTERCEPT_SVM_MASK) && !is_int && next_eip==-1) {
- next_eip = EIP;
- svm_should_check = 0;
- }
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_LMA_MASK) {
+ uint64_t pml4e_addr, pml4e;
+ int32_t sext;
+
+ /* test virtual address sign extension */
+ sext = (int64_t)addr >> 47;
+ if (sext != 0 && sext != -1) {
+ env->error_code = 0;
+ env->exception_index = EXCP0D_GPF;
+ return 1;
+ }
- if (svm_should_check
- && (INTERCEPTEDl(_exceptions, 1 << intno)
- && !is_int)) {
- raise_interrupt(intno, is_int, error_code, 0);
- }
- has_error_code = 0;
- if (!is_int && !is_hw) {
- switch(intno) {
- case 8:
- case 10:
- case 11:
- case 12:
- case 13:
- case 14:
- case 17:
- has_error_code = 1;
- break;
+ pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
+ env->a20_mask;
+ pml4e = ldq_phys(pml4e_addr);
+ if (!(pml4e & PG_PRESENT_MASK)) {
+ error_code = 0;
+ goto do_fault;
+ }
+ if (!(env->efer & MSR_EFER_NXE) && (pml4e & PG_NX_MASK)) {
+ error_code = PG_ERROR_RSVD_MASK;
+ goto do_fault;
+ }
+ if (!(pml4e & PG_ACCESSED_MASK)) {
+ pml4e |= PG_ACCESSED_MASK;
+ stl_phys_notdirty(pml4e_addr, pml4e);
+ }
+ ptep = pml4e ^ PG_NX_MASK;
+ pdpe_addr = ((pml4e & PHYS_ADDR_MASK) + (((addr >> 30) & 0x1ff) << 3)) &
+ env->a20_mask;
+ pdpe = ldq_phys(pdpe_addr);
+ if (!(pdpe & PG_PRESENT_MASK)) {
+ error_code = 0;
+ goto do_fault;
+ }
+ if (!(env->efer & MSR_EFER_NXE) && (pdpe & PG_NX_MASK)) {
+ error_code = PG_ERROR_RSVD_MASK;
+ goto do_fault;
+ }
+ ptep &= pdpe ^ PG_NX_MASK;
+ if (!(pdpe & PG_ACCESSED_MASK)) {
+ pdpe |= PG_ACCESSED_MASK;
+ stl_phys_notdirty(pdpe_addr, pdpe);
+ }
+ } else
+#endif
+ {
+ /* XXX: load them when cr3 is loaded ? */
+ pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
+ env->a20_mask;
+ pdpe = ldq_phys(pdpe_addr);
+ if (!(pdpe & PG_PRESENT_MASK)) {
+ error_code = 0;
+ goto do_fault;
+ }
+ ptep = PG_NX_MASK | PG_USER_MASK | PG_RW_MASK;
}
- }
- if (is_int)
- old_eip = next_eip;
- else
- old_eip = env->eip;
- dt = &env->idt;
- if (intno * 8 + 7 > dt->limit)
- raise_exception_err(EXCP0D_GPF, intno * 8 + 2);
- ptr = dt->base + intno * 8;
- e1 = ldl_kernel(ptr);
- e2 = ldl_kernel(ptr + 4);
- /* check gate type */
- type = (e2 >> DESC_TYPE_SHIFT) & 0x1f;
- switch(type) {
- case 5: /* task gate */
- /* must do that check here to return the correct error code */
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, intno * 8 + 2);
- switch_tss(intno * 8, e1, e2, SWITCH_TSS_CALL, old_eip);
- if (has_error_code) {
- int type;
- uint32_t mask;
- /* push the error code */
- type = (env->tr.flags >> DESC_TYPE_SHIFT) & 0xf;
- shift = type >> 3;
- if (env->segs[R_SS].flags & DESC_B_MASK)
- mask = 0xffffffff;
- else
- mask = 0xffff;
- esp = (ESP - (2 << shift)) & mask;
- ssp = env->segs[R_SS].base + esp;
- if (shift)
- stl_kernel(ssp, error_code);
- else
- stw_kernel(ssp, error_code);
- SET_ESP(esp, mask);
+ pde_addr = ((pdpe & PHYS_ADDR_MASK) + (((addr >> 21) & 0x1ff) << 3)) &
+ env->a20_mask;
+ pde = ldq_phys(pde_addr);
+ if (!(pde & PG_PRESENT_MASK)) {
+ error_code = 0;
+ goto do_fault;
+ }
+ if (!(env->efer & MSR_EFER_NXE) && (pde & PG_NX_MASK)) {
+ error_code = PG_ERROR_RSVD_MASK;
+ goto do_fault;
+ }
+ ptep &= pde ^ PG_NX_MASK;
+ if (pde & PG_PSE_MASK) {
+ /* 2 MB page */
+ page_size = 2048 * 1024;
+ ptep ^= PG_NX_MASK;
+ if ((ptep & PG_NX_MASK) && is_write1 == 2)
+ goto do_fault_protect;
+ if (is_user) {
+ if (!(ptep & PG_USER_MASK))
+ goto do_fault_protect;
+ if (is_write && !(ptep & PG_RW_MASK))
+ goto do_fault_protect;
+ } else {
+ if ((env->cr[0] & CR0_WP_MASK) &&
+ is_write && !(ptep & PG_RW_MASK))
+ goto do_fault_protect;
+ }
+ is_dirty = is_write && !(pde & PG_DIRTY_MASK);
+ if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
+ pde |= PG_ACCESSED_MASK;
+ if (is_dirty)
+ pde |= PG_DIRTY_MASK;
+ stl_phys_notdirty(pde_addr, pde);
+ }
+ /* align to page_size */
+ pte = pde & ((PHYS_ADDR_MASK & ~(page_size - 1)) | 0xfff);
+ virt_addr = addr & ~(page_size - 1);
+ } else {
+ /* 4 KB page */
+ if (!(pde & PG_ACCESSED_MASK)) {
+ pde |= PG_ACCESSED_MASK;
+ stl_phys_notdirty(pde_addr, pde);
+ }
+ pte_addr = ((pde & PHYS_ADDR_MASK) + (((addr >> 12) & 0x1ff) << 3)) &
+ env->a20_mask;
+ pte = ldq_phys(pte_addr);
+ if (!(pte & PG_PRESENT_MASK)) {
+ error_code = 0;
+ goto do_fault;
+ }
+ if (!(env->efer & MSR_EFER_NXE) && (pte & PG_NX_MASK)) {
+ error_code = PG_ERROR_RSVD_MASK;
+ goto do_fault;
+ }
+ /* combine pde and pte nx, user and rw protections */
+ ptep &= pte ^ PG_NX_MASK;
+ ptep ^= PG_NX_MASK;
+ if ((ptep & PG_NX_MASK) && is_write1 == 2)
+ goto do_fault_protect;
+ if (is_user) {
+ if (!(ptep & PG_USER_MASK))
+ goto do_fault_protect;
+ if (is_write && !(ptep & PG_RW_MASK))
+ goto do_fault_protect;
+ } else {
+ if ((env->cr[0] & CR0_WP_MASK) &&
+ is_write && !(ptep & PG_RW_MASK))
+ goto do_fault_protect;
+ }
+ is_dirty = is_write && !(pte & PG_DIRTY_MASK);
+ if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
+ pte |= PG_ACCESSED_MASK;
+ if (is_dirty)
+ pte |= PG_DIRTY_MASK;
+ stl_phys_notdirty(pte_addr, pte);
+ }
+ page_size = 4096;
+ virt_addr = addr & ~0xfff;
+ pte = pte & (PHYS_ADDR_MASK | 0xfff);
}
- return;
- case 6: /* 286 interrupt gate */
- case 7: /* 286 trap gate */
- case 14: /* 386 interrupt gate */
- case 15: /* 386 trap gate */
- break;
- default:
- raise_exception_err(EXCP0D_GPF, intno * 8 + 2);
- break;
- }
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- cpl = env->hflags & HF_CPL_MASK;
- /* check privledge if software int */
- if (is_int && dpl < cpl)
- raise_exception_err(EXCP0D_GPF, intno * 8 + 2);
- /* check valid bit */
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, intno * 8 + 2);
- selector = e1 >> 16;
- offset = (e2 & 0xffff0000) | (e1 & 0x0000ffff);
- if ((selector & 0xfffc) == 0)
- raise_exception_err(EXCP0D_GPF, 0);
-
- if (load_segment(&e1, &e2, selector) != 0)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK)))
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- if (dpl > cpl)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
- if (!(e2 & DESC_C_MASK) && dpl < cpl) {
- /* to inner privilege */
- get_ss_esp_from_tss(&ss, &esp, dpl);
- if ((ss & 0xfffc) == 0)
- raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
- if ((ss & 3) != dpl)
- raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
- if (load_segment(&ss_e1, &ss_e2, ss) != 0)
- raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
- ss_dpl = (ss_e2 >> DESC_DPL_SHIFT) & 3;
- if (ss_dpl != dpl)
- raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
- if (!(ss_e2 & DESC_S_MASK) ||
- (ss_e2 & DESC_CS_MASK) ||
- !(ss_e2 & DESC_W_MASK))
- raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
- if (!(ss_e2 & DESC_P_MASK))
- raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
- new_stack = 1;
- sp_mask = get_sp_mask(ss_e2);
- ssp = get_seg_base(ss_e1, ss_e2);
- } else if ((e2 & DESC_C_MASK) || dpl == cpl) {
- /* to same privilege */
- if (env->eflags & VM_MASK)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- new_stack = 0;
- sp_mask = get_sp_mask(env->segs[R_SS].flags);
- ssp = env->segs[R_SS].base;
- esp = ESP;
- dpl = cpl;
} else {
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- new_stack = 0; /* avoid warning */
- sp_mask = 0; /* avoid warning */
- ssp = 0; /* avoid warning */
- esp = 0; /* avoid warning */
- }
+ uint32_t pde;
+
+ /* page directory entry */
+ pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) &
+ env->a20_mask;
+ pde = ldl_phys(pde_addr);
+ if (!(pde & PG_PRESENT_MASK)) {
+ error_code = 0;
+ goto do_fault;
+ }
+ /* if PSE bit is set, then we use a 4MB page */
+ if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
+ page_size = 4096 * 1024;
+ if (is_user) {
+ if (!(pde & PG_USER_MASK))
+ goto do_fault_protect;
+ if (is_write && !(pde & PG_RW_MASK))
+ goto do_fault_protect;
+ } else {
+ if ((env->cr[0] & CR0_WP_MASK) &&
+ is_write && !(pde & PG_RW_MASK))
+ goto do_fault_protect;
+ }
+ is_dirty = is_write && !(pde & PG_DIRTY_MASK);
+ if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
+ pde |= PG_ACCESSED_MASK;
+ if (is_dirty)
+ pde |= PG_DIRTY_MASK;
+ stl_phys_notdirty(pde_addr, pde);
+ }
- shift = type >> 3;
+ pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
+ ptep = pte;
+ virt_addr = addr & ~(page_size - 1);
+ } else {
+ if (!(pde & PG_ACCESSED_MASK)) {
+ pde |= PG_ACCESSED_MASK;
+ stl_phys_notdirty(pde_addr, pde);
+ }
-#if 0
- /* XXX: check that enough room is available */
- push_size = 6 + (new_stack << 2) + (has_error_code << 1);
- if (env->eflags & VM_MASK)
- push_size += 8;
- push_size <<= shift;
-#endif
- if (shift == 1) {
- if (new_stack) {
- if (env->eflags & VM_MASK) {
- PUSHL(ssp, esp, sp_mask, env->segs[R_GS].selector);
- PUSHL(ssp, esp, sp_mask, env->segs[R_FS].selector);
- PUSHL(ssp, esp, sp_mask, env->segs[R_DS].selector);
- PUSHL(ssp, esp, sp_mask, env->segs[R_ES].selector);
+ /* page directory entry */
+ pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) &
+ env->a20_mask;
+ pte = ldl_phys(pte_addr);
+ if (!(pte & PG_PRESENT_MASK)) {
+ error_code = 0;
+ goto do_fault;
}
- PUSHL(ssp, esp, sp_mask, env->segs[R_SS].selector);
- PUSHL(ssp, esp, sp_mask, ESP);
- }
- PUSHL(ssp, esp, sp_mask, compute_eflags());
- PUSHL(ssp, esp, sp_mask, env->segs[R_CS].selector);
- PUSHL(ssp, esp, sp_mask, old_eip);
- if (has_error_code) {
- PUSHL(ssp, esp, sp_mask, error_code);
- }
- } else {
- if (new_stack) {
- if (env->eflags & VM_MASK) {
- PUSHW(ssp, esp, sp_mask, env->segs[R_GS].selector);
- PUSHW(ssp, esp, sp_mask, env->segs[R_FS].selector);
- PUSHW(ssp, esp, sp_mask, env->segs[R_DS].selector);
- PUSHW(ssp, esp, sp_mask, env->segs[R_ES].selector);
+ /* combine pde and pte user and rw protections */
+ ptep = pte & pde;
+ if (is_user) {
+ if (!(ptep & PG_USER_MASK))
+ goto do_fault_protect;
+ if (is_write && !(ptep & PG_RW_MASK))
+ goto do_fault_protect;
+ } else {
+ if ((env->cr[0] & CR0_WP_MASK) &&
+ is_write && !(ptep & PG_RW_MASK))
+ goto do_fault_protect;
}
- PUSHW(ssp, esp, sp_mask, env->segs[R_SS].selector);
- PUSHW(ssp, esp, sp_mask, ESP);
- }
- PUSHW(ssp, esp, sp_mask, compute_eflags());
- PUSHW(ssp, esp, sp_mask, env->segs[R_CS].selector);
- PUSHW(ssp, esp, sp_mask, old_eip);
- if (has_error_code) {
- PUSHW(ssp, esp, sp_mask, error_code);
+ is_dirty = is_write && !(pte & PG_DIRTY_MASK);
+ if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
+ pte |= PG_ACCESSED_MASK;
+ if (is_dirty)
+ pte |= PG_DIRTY_MASK;
+ stl_phys_notdirty(pte_addr, pte);
+ }
+ page_size = 4096;
+ virt_addr = addr & ~0xfff;
}
}
-
- if (new_stack) {
- if (env->eflags & VM_MASK) {
- cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0, 0);
- cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0, 0);
- cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0, 0);
- cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0, 0);
+ /* the page can be put in the TLB */
+ prot = PAGE_READ;
+ if (!(ptep & PG_NX_MASK))
+ prot |= PAGE_EXEC;
+ if (pte & PG_DIRTY_MASK) {
+ /* only set write access if already dirty... otherwise wait
+ for dirty access */
+ if (is_user) {
+ if (ptep & PG_RW_MASK)
+ prot |= PAGE_WRITE;
+ } else {
+ if (!(env->cr[0] & CR0_WP_MASK) ||
+ (ptep & PG_RW_MASK))
+ prot |= PAGE_WRITE;
}
- ss = (ss & ~3) | dpl;
- cpu_x86_load_seg_cache(env, R_SS, ss,
- ssp, get_seg_limit(ss_e1, ss_e2), ss_e2);
}
- SET_ESP(esp, sp_mask);
-
- selector = (selector & ~3) | dpl;
- cpu_x86_load_seg_cache(env, R_CS, selector,
- get_seg_base(e1, e2),
- get_seg_limit(e1, e2),
- e2);
- cpu_x86_set_cpl(env, dpl);
- env->eip = offset;
-
- /* interrupt gate clear IF mask */
- if ((type & 1) == 0) {
- env->eflags &= ~IF_MASK;
+ do_mapping:
+ pte = pte & env->a20_mask;
+
+ /* Even if 4MB pages, we map only one 4KB page in the cache to
+ avoid filling it too fast */
+ page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
+ paddr = (pte & TARGET_PAGE_MASK) + page_offset;
+ vaddr = virt_addr + page_offset;
+
+ ret = tlb_set_page_exec(env, vaddr, paddr, prot, mmu_idx, is_softmmu);
+ return ret;
+ do_fault_protect:
+ error_code = PG_ERROR_P_MASK;
+ do_fault:
+ error_code |= (is_write << PG_ERROR_W_BIT);
+ if (is_user)
+ error_code |= PG_ERROR_U_MASK;
+ if (is_write1 == 2 &&
+ (env->efer & MSR_EFER_NXE) &&
+ (env->cr[4] & CR4_PAE_MASK))
+ error_code |= PG_ERROR_I_D_MASK;
+ if (INTERCEPTEDl(_exceptions, 1 << EXCP0E_PAGE)) {
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2), addr);
+ } else {
+ env->cr[2] = addr;
}
- env->eflags &= ~(TF_MASK | VM_MASK | RF_MASK | NT_MASK);
-}
-
-#ifdef TARGET_X86_64
-
-#define PUSHQ(sp, val)\
-{\
- sp -= 8;\
- stq_kernel(sp, (val));\
-}
-
-#define POPQ(sp, val)\
-{\
- val = ldq_kernel(sp);\
- sp += 8;\
+ env->error_code = error_code;
+ env->exception_index = EXCP0E_PAGE;
+ /* the VMM will handle this */
+ if (INTERCEPTEDl(_exceptions, 1 << EXCP0E_PAGE))
+ return 2;
+ return 1;
}
-static inline target_ulong get_rsp_from_tss(int level)
+target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
{
- int index;
-
-#if 0
- printf("TR: base=" TARGET_FMT_lx " limit=%x\n",
- env->tr.base, env->tr.limit);
-#endif
+ target_ulong pde_addr, pte_addr;
+ uint64_t pte;
+ target_phys_addr_t paddr;
+ uint32_t page_offset;
+ int page_size;
- if (!(env->tr.flags & DESC_P_MASK))
- cpu_abort(env, "invalid tss");
- index = 8 * level + 4;
- if ((index + 7) > env->tr.limit)
- raise_exception_err(EXCP0A_TSS, env->tr.selector & 0xfffc);
- return ldq_kernel(env->tr.base + index);
-}
-
-/* 64 bit interrupt */
-static void do_interrupt64(int intno, int is_int, int error_code,
- target_ulong next_eip, int is_hw)
-{
- SegmentCache *dt;
- target_ulong ptr;
- int type, dpl, selector, cpl, ist;
- int has_error_code, new_stack;
- uint32_t e1, e2, e3, ss;
- target_ulong old_eip, esp, offset;
- int svm_should_check = 1;
+ if (env->cr[4] & CR4_PAE_MASK) {
+ target_ulong pdpe_addr;
+ uint64_t pde, pdpe;
- if ((env->intercept & INTERCEPT_SVM_MASK) && !is_int && next_eip==-1) {
- next_eip = EIP;
- svm_should_check = 0;
- }
- if (svm_should_check
- && INTERCEPTEDl(_exceptions, 1 << intno)
- && !is_int) {
- raise_interrupt(intno, is_int, error_code, 0);
- }
- has_error_code = 0;
- if (!is_int && !is_hw) {
- switch(intno) {
- case 8:
- case 10:
- case 11:
- case 12:
- case 13:
- case 14:
- case 17:
- has_error_code = 1;
- break;
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_LMA_MASK) {
+ uint64_t pml4e_addr, pml4e;
+ int32_t sext;
+
+ /* test virtual address sign extension */
+ sext = (int64_t)addr >> 47;
+ if (sext != 0 && sext != -1)
+ return -1;
+
+ pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
+ env->a20_mask;
+ pml4e = ldq_phys(pml4e_addr);
+ if (!(pml4e & PG_PRESENT_MASK))
+ return -1;
+
+ pdpe_addr = ((pml4e & ~0xfff) + (((addr >> 30) & 0x1ff) << 3)) &
+ env->a20_mask;
+ pdpe = ldq_phys(pdpe_addr);
+ if (!(pdpe & PG_PRESENT_MASK))
+ return -1;
+ } else
+#endif
+ {
+ pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
+ env->a20_mask;
+ pdpe = ldq_phys(pdpe_addr);
+ if (!(pdpe & PG_PRESENT_MASK))
+ return -1;
}
- }
- if (is_int)
- old_eip = next_eip;
- else
- old_eip = env->eip;
-
- dt = &env->idt;
- if (intno * 16 + 15 > dt->limit)
- raise_exception_err(EXCP0D_GPF, intno * 16 + 2);
- ptr = dt->base + intno * 16;
- e1 = ldl_kernel(ptr);
- e2 = ldl_kernel(ptr + 4);
- e3 = ldl_kernel(ptr + 8);
- /* check gate type */
- type = (e2 >> DESC_TYPE_SHIFT) & 0x1f;
- switch(type) {
- case 14: /* 386 interrupt gate */
- case 15: /* 386 trap gate */
- break;
- default:
- raise_exception_err(EXCP0D_GPF, intno * 16 + 2);
- break;
- }
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- cpl = env->hflags & HF_CPL_MASK;
- /* check privledge if software int */
- if (is_int && dpl < cpl)
- raise_exception_err(EXCP0D_GPF, intno * 16 + 2);
- /* check valid bit */
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, intno * 16 + 2);
- selector = e1 >> 16;
- offset = ((target_ulong)e3 << 32) | (e2 & 0xffff0000) | (e1 & 0x0000ffff);
- ist = e2 & 7;
- if ((selector & 0xfffc) == 0)
- raise_exception_err(EXCP0D_GPF, 0);
- if (load_segment(&e1, &e2, selector) != 0)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK)))
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- if (dpl > cpl)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
- if (!(e2 & DESC_L_MASK) || (e2 & DESC_B_MASK))
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- if ((!(e2 & DESC_C_MASK) && dpl < cpl) || ist != 0) {
- /* to inner privilege */
- if (ist != 0)
- esp = get_rsp_from_tss(ist + 3);
- else
- esp = get_rsp_from_tss(dpl);
- esp &= ~0xfLL; /* align stack */
- ss = 0;
- new_stack = 1;
- } else if ((e2 & DESC_C_MASK) || dpl == cpl) {
- /* to same privilege */
- if (env->eflags & VM_MASK)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- new_stack = 0;
- if (ist != 0)
- esp = get_rsp_from_tss(ist + 3);
- else
- esp = ESP;
- esp &= ~0xfLL; /* align stack */
- dpl = cpl;
+ pde_addr = ((pdpe & ~0xfff) + (((addr >> 21) & 0x1ff) << 3)) &
+ env->a20_mask;
+ pde = ldq_phys(pde_addr);
+ if (!(pde & PG_PRESENT_MASK)) {
+ return -1;
+ }
+ if (pde & PG_PSE_MASK) {
+ /* 2 MB page */
+ page_size = 2048 * 1024;
+ pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
+ } else {
+ /* 4 KB page */
+ pte_addr = ((pde & ~0xfff) + (((addr >> 12) & 0x1ff) << 3)) &
+ env->a20_mask;
+ page_size = 4096;
+ pte = ldq_phys(pte_addr);
+ }
} else {
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- new_stack = 0; /* avoid warning */
- esp = 0; /* avoid warning */
- }
-
- PUSHQ(esp, env->segs[R_SS].selector);
- PUSHQ(esp, ESP);
- PUSHQ(esp, compute_eflags());
- PUSHQ(esp, env->segs[R_CS].selector);
- PUSHQ(esp, old_eip);
- if (has_error_code) {
- PUSHQ(esp, error_code);
- }
+ uint32_t pde;
- if (new_stack) {
- ss = 0 | dpl;
- cpu_x86_load_seg_cache(env, R_SS, ss, 0, 0, 0);
+ if (!(env->cr[0] & CR0_PG_MASK)) {
+ pte = addr;
+ page_size = 4096;
+ } else {
+ /* page directory entry */
+ pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask;
+ pde = ldl_phys(pde_addr);
+ if (!(pde & PG_PRESENT_MASK))
+ return -1;
+ if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
+ pte = pde & ~0x003ff000; /* align to 4MB */
+ page_size = 4096 * 1024;
+ } else {
+ /* page directory entry */
+ pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask;
+ pte = ldl_phys(pte_addr);
+ if (!(pte & PG_PRESENT_MASK))
+ return -1;
+ page_size = 4096;
+ }
+ }
+ pte = pte & env->a20_mask;
}
- ESP = esp;
-
- selector = (selector & ~3) | dpl;
- cpu_x86_load_seg_cache(env, R_CS, selector,
- get_seg_base(e1, e2),
- get_seg_limit(e1, e2),
- e2);
- cpu_x86_set_cpl(env, dpl);
- env->eip = offset;
- /* interrupt gate clear IF mask */
- if ((type & 1) == 0) {
- env->eflags &= ~IF_MASK;
- }
- env->eflags &= ~(TF_MASK | VM_MASK | RF_MASK | NT_MASK);
-}
-#endif
-
-#if defined(CONFIG_USER_ONLY)
-void helper_syscall(int next_eip_addend)
-{
- env->exception_index = EXCP_SYSCALL;
- env->exception_next_eip = env->eip + next_eip_addend;
- cpu_loop_exit();
-}
-#else
-void helper_syscall(int next_eip_addend)
-{
- int selector;
-
- if (!(env->efer & MSR_EFER_SCE)) {
- raise_exception_err(EXCP06_ILLOP, 0);
- }
- selector = (env->star >> 32) & 0xffff;
-#ifdef TARGET_X86_64
- if (env->hflags & HF_LMA_MASK) {
- int code64;
-
- ECX = env->eip + next_eip_addend;
- env->regs[11] = compute_eflags();
-
- code64 = env->hflags & HF_CS64_MASK;
-
- cpu_x86_set_cpl(env, 0);
- cpu_x86_load_seg_cache(env, R_CS, selector & 0xfffc,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_P_MASK |
- DESC_S_MASK |
- DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK | DESC_L_MASK);
- cpu_x86_load_seg_cache(env, R_SS, (selector + 8) & 0xfffc,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
- DESC_S_MASK |
- DESC_W_MASK | DESC_A_MASK);
- env->eflags &= ~env->fmask;
- load_eflags(env->eflags, 0);
- if (code64)
- env->eip = env->lstar;
- else
- env->eip = env->cstar;
- } else
-#endif
- {
- ECX = (uint32_t)(env->eip + next_eip_addend);
-
- cpu_x86_set_cpl(env, 0);
- cpu_x86_load_seg_cache(env, R_CS, selector & 0xfffc,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
- DESC_S_MASK |
- DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK);
- cpu_x86_load_seg_cache(env, R_SS, (selector + 8) & 0xfffc,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
- DESC_S_MASK |
- DESC_W_MASK | DESC_A_MASK);
- env->eflags &= ~(IF_MASK | RF_MASK | VM_MASK);
- env->eip = (uint32_t)env->star;
- }
-}
-#endif
-
-void helper_sysret(int dflag)
-{
- int cpl, selector;
-
- if (!(env->efer & MSR_EFER_SCE)) {
- raise_exception_err(EXCP06_ILLOP, 0);
- }
- cpl = env->hflags & HF_CPL_MASK;
- if (!(env->cr[0] & CR0_PE_MASK) || cpl != 0) {
- raise_exception_err(EXCP0D_GPF, 0);
- }
- selector = (env->star >> 48) & 0xffff;
-#ifdef TARGET_X86_64
- if (env->hflags & HF_LMA_MASK) {
- if (dflag == 2) {
- cpu_x86_load_seg_cache(env, R_CS, (selector + 16) | 3,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_P_MASK |
- DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
- DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK |
- DESC_L_MASK);
- env->eip = ECX;
- } else {
- cpu_x86_load_seg_cache(env, R_CS, selector | 3,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
- DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
- DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK);
- env->eip = (uint32_t)ECX;
- }
- cpu_x86_load_seg_cache(env, R_SS, selector + 8,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
- DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
- DESC_W_MASK | DESC_A_MASK);
- load_eflags((uint32_t)(env->regs[11]), TF_MASK | AC_MASK | ID_MASK |
- IF_MASK | IOPL_MASK | VM_MASK | RF_MASK | NT_MASK);
- cpu_x86_set_cpl(env, 3);
- } else
-#endif
- {
- cpu_x86_load_seg_cache(env, R_CS, selector | 3,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
- DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
- DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK);
- env->eip = (uint32_t)ECX;
- cpu_x86_load_seg_cache(env, R_SS, selector + 8,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
- DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
- DESC_W_MASK | DESC_A_MASK);
- env->eflags |= IF_MASK;
- cpu_x86_set_cpl(env, 3);
- }
-#ifdef USE_KQEMU
- if (kqemu_is_ok(env)) {
- if (env->hflags & HF_LMA_MASK)
- CC_OP = CC_OP_EFLAGS;
- env->exception_index = -1;
- cpu_loop_exit();
- }
-#endif
-}
-
-/* real mode interrupt */
-static void do_interrupt_real(int intno, int is_int, int error_code,
- unsigned int next_eip)
-{
- SegmentCache *dt;
- target_ulong ptr, ssp;
- int selector;
- uint32_t offset, esp;
- uint32_t old_cs, old_eip;
- int svm_should_check = 1;
-
- if ((env->intercept & INTERCEPT_SVM_MASK) && !is_int && next_eip==-1) {
- next_eip = EIP;
- svm_should_check = 0;
- }
- if (svm_should_check
- && INTERCEPTEDl(_exceptions, 1 << intno)
- && !is_int) {
- raise_interrupt(intno, is_int, error_code, 0);
- }
- /* real mode (simpler !) */
- dt = &env->idt;
- if (intno * 4 + 3 > dt->limit)
- raise_exception_err(EXCP0D_GPF, intno * 8 + 2);
- ptr = dt->base + intno * 4;
- offset = lduw_kernel(ptr);
- selector = lduw_kernel(ptr + 2);
- esp = ESP;
- ssp = env->segs[R_SS].base;
- if (is_int)
- old_eip = next_eip;
- else
- old_eip = env->eip;
- old_cs = env->segs[R_CS].selector;
- /* XXX: use SS segment size ? */
- PUSHW(ssp, esp, 0xffff, compute_eflags());
- PUSHW(ssp, esp, 0xffff, old_cs);
- PUSHW(ssp, esp, 0xffff, old_eip);
-
- /* update processor state */
- ESP = (ESP & ~0xffff) | (esp & 0xffff);
- env->eip = offset;
- env->segs[R_CS].selector = selector;
- env->segs[R_CS].base = (selector << 4);
- env->eflags &= ~(IF_MASK | TF_MASK | AC_MASK | RF_MASK);
-}
-
-/* fake user mode interrupt */
-void do_interrupt_user(int intno, int is_int, int error_code,
- target_ulong next_eip)
-{
- SegmentCache *dt;
- target_ulong ptr;
- int dpl, cpl, shift;
- uint32_t e2;
-
- dt = &env->idt;
- if (env->hflags & HF_LMA_MASK) {
- shift = 4;
- } else {
- shift = 3;
- }
- ptr = dt->base + (intno << shift);
- e2 = ldl_kernel(ptr + 4);
-
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- cpl = env->hflags & HF_CPL_MASK;
- /* check privledge if software int */
- if (is_int && dpl < cpl)
- raise_exception_err(EXCP0D_GPF, (intno << shift) + 2);
-
- /* Since we emulate only user space, we cannot do more than
- exiting the emulation with the suitable exception and error
- code */
- if (is_int)
- EIP = next_eip;
-}
-
-/*
- * Begin execution of an interruption. is_int is TRUE if coming from
- * the int instruction. next_eip is the EIP value AFTER the interrupt
- * instruction. It is only relevant if is_int is TRUE.
- */
-void do_interrupt(int intno, int is_int, int error_code,
- target_ulong next_eip, int is_hw)
-{
- if (loglevel & CPU_LOG_INT) {
- if ((env->cr[0] & CR0_PE_MASK)) {
- static int count;
- fprintf(logfile, "%6d: v=%02x e=%04x i=%d cpl=%d IP=%04x:" TARGET_FMT_lx " pc=" TARGET_FMT_lx " SP=%04x:" TARGET_FMT_lx,
- count, intno, error_code, is_int,
- env->hflags & HF_CPL_MASK,
- env->segs[R_CS].selector, EIP,
- (int)env->segs[R_CS].base + EIP,
- env->segs[R_SS].selector, ESP);
- if (intno == 0x0e) {
- fprintf(logfile, " CR2=" TARGET_FMT_lx, env->cr[2]);
- } else {
- fprintf(logfile, " EAX=" TARGET_FMT_lx, EAX);
- }
- fprintf(logfile, "\n");
- cpu_dump_state(env, logfile, fprintf, X86_DUMP_CCOP);
-#if 0
- {
- int i;
- uint8_t *ptr;
- fprintf(logfile, " code=");
- ptr = env->segs[R_CS].base + env->eip;
- for(i = 0; i < 16; i++) {
- fprintf(logfile, " %02x", ldub(ptr + i));
- }
- fprintf(logfile, "\n");
- }
-#endif
- count++;
- }
- }
- if (env->cr[0] & CR0_PE_MASK) {
-#if TARGET_X86_64
- if (env->hflags & HF_LMA_MASK) {
- do_interrupt64(intno, is_int, error_code, next_eip, is_hw);
- } else
-#endif
- {
- do_interrupt_protected(intno, is_int, error_code, next_eip, is_hw);
- }
- } else {
- do_interrupt_real(intno, is_int, error_code, next_eip);
- }
-}
-
-/*
- * Check nested exceptions and change to double or triple fault if
- * needed. It should only be called, if this is not an interrupt.
- * Returns the new exception number.
- */
-static int check_exception(int intno, int *error_code)
-{
- int first_contributory = env->old_exception == 0 ||
- (env->old_exception >= 10 &&
- env->old_exception <= 13);
- int second_contributory = intno == 0 ||
- (intno >= 10 && intno <= 13);
-
- if (loglevel & CPU_LOG_INT)
- fprintf(logfile, "check_exception old: 0x%x new 0x%x\n",
- env->old_exception, intno);
-
- if (env->old_exception == EXCP08_DBLE)
- cpu_abort(env, "triple fault");
-
- if ((first_contributory && second_contributory)
- || (env->old_exception == EXCP0E_PAGE &&
- (second_contributory || (intno == EXCP0E_PAGE)))) {
- intno = EXCP08_DBLE;
- *error_code = 0;
- }
-
- if (second_contributory || (intno == EXCP0E_PAGE) ||
- (intno == EXCP08_DBLE))
- env->old_exception = intno;
-
- return intno;
-}
-
-/*
- * Signal an interruption. It is executed in the main CPU loop.
- * is_int is TRUE if coming from the int instruction. next_eip is the
- * EIP value AFTER the interrupt instruction. It is only relevant if
- * is_int is TRUE.
- */
-void raise_interrupt(int intno, int is_int, int error_code,
- int next_eip_addend)
-{
- if (!is_int) {
- helper_svm_check_intercept_param(SVM_EXIT_EXCP_BASE + intno, error_code);
- intno = check_exception(intno, &error_code);
- }
-
- env->exception_index = intno;
- env->error_code = error_code;
- env->exception_is_int = is_int;
- env->exception_next_eip = env->eip + next_eip_addend;
- cpu_loop_exit();
-}
-
-/* same as raise_exception_err, but do not restore global registers */
-static void raise_exception_err_norestore(int exception_index, int error_code)
-{
- exception_index = check_exception(exception_index, &error_code);
-
- env->exception_index = exception_index;
- env->error_code = error_code;
- env->exception_is_int = 0;
- env->exception_next_eip = 0;
- longjmp(env->jmp_env, 1);
-}
-
-/* shortcuts to generate exceptions */
-
-void (raise_exception_err)(int exception_index, int error_code)
-{
- raise_interrupt(exception_index, 0, error_code, 0);
-}
-
-void raise_exception(int exception_index)
-{
- raise_interrupt(exception_index, 0, 0, 0);
-}
-
-/* SMM support */
-
-#if defined(CONFIG_USER_ONLY)
-
-void do_smm_enter(void)
-{
-}
-
-void helper_rsm(void)
-{
-}
-
-#else
-
-#ifdef TARGET_X86_64
-#define SMM_REVISION_ID 0x00020064
-#else
-#define SMM_REVISION_ID 0x00020000
-#endif
-
-void do_smm_enter(void)
-{
- target_ulong sm_state;
- SegmentCache *dt;
- int i, offset;
-
- if (loglevel & CPU_LOG_INT) {
- fprintf(logfile, "SMM: enter\n");
- cpu_dump_state(env, logfile, fprintf, X86_DUMP_CCOP);
- }
-
- env->hflags |= HF_SMM_MASK;
- cpu_smm_update(env);
-
- sm_state = env->smbase + 0x8000;
-
-#ifdef TARGET_X86_64
- for(i = 0; i < 6; i++) {
- dt = &env->segs[i];
- offset = 0x7e00 + i * 16;
- stw_phys(sm_state + offset, dt->selector);
- stw_phys(sm_state + offset + 2, (dt->flags >> 8) & 0xf0ff);
- stl_phys(sm_state + offset + 4, dt->limit);
- stq_phys(sm_state + offset + 8, dt->base);
- }
-
- stq_phys(sm_state + 0x7e68, env->gdt.base);
- stl_phys(sm_state + 0x7e64, env->gdt.limit);
-
- stw_phys(sm_state + 0x7e70, env->ldt.selector);
- stq_phys(sm_state + 0x7e78, env->ldt.base);
- stl_phys(sm_state + 0x7e74, env->ldt.limit);
- stw_phys(sm_state + 0x7e72, (env->ldt.flags >> 8) & 0xf0ff);
-
- stq_phys(sm_state + 0x7e88, env->idt.base);
- stl_phys(sm_state + 0x7e84, env->idt.limit);
-
- stw_phys(sm_state + 0x7e90, env->tr.selector);
- stq_phys(sm_state + 0x7e98, env->tr.base);
- stl_phys(sm_state + 0x7e94, env->tr.limit);
- stw_phys(sm_state + 0x7e92, (env->tr.flags >> 8) & 0xf0ff);
-
- stq_phys(sm_state + 0x7ed0, env->efer);
-
- stq_phys(sm_state + 0x7ff8, EAX);
- stq_phys(sm_state + 0x7ff0, ECX);
- stq_phys(sm_state + 0x7fe8, EDX);
- stq_phys(sm_state + 0x7fe0, EBX);
- stq_phys(sm_state + 0x7fd8, ESP);
- stq_phys(sm_state + 0x7fd0, EBP);
- stq_phys(sm_state + 0x7fc8, ESI);
- stq_phys(sm_state + 0x7fc0, EDI);
- for(i = 8; i < 16; i++)
- stq_phys(sm_state + 0x7ff8 - i * 8, env->regs[i]);
- stq_phys(sm_state + 0x7f78, env->eip);
- stl_phys(sm_state + 0x7f70, compute_eflags());
- stl_phys(sm_state + 0x7f68, env->dr[6]);
- stl_phys(sm_state + 0x7f60, env->dr[7]);
-
- stl_phys(sm_state + 0x7f48, env->cr[4]);
- stl_phys(sm_state + 0x7f50, env->cr[3]);
- stl_phys(sm_state + 0x7f58, env->cr[0]);
-
- stl_phys(sm_state + 0x7efc, SMM_REVISION_ID);
- stl_phys(sm_state + 0x7f00, env->smbase);
-#else
- stl_phys(sm_state + 0x7ffc, env->cr[0]);
- stl_phys(sm_state + 0x7ff8, env->cr[3]);
- stl_phys(sm_state + 0x7ff4, compute_eflags());
- stl_phys(sm_state + 0x7ff0, env->eip);
- stl_phys(sm_state + 0x7fec, EDI);
- stl_phys(sm_state + 0x7fe8, ESI);
- stl_phys(sm_state + 0x7fe4, EBP);
- stl_phys(sm_state + 0x7fe0, ESP);
- stl_phys(sm_state + 0x7fdc, EBX);
- stl_phys(sm_state + 0x7fd8, EDX);
- stl_phys(sm_state + 0x7fd4, ECX);
- stl_phys(sm_state + 0x7fd0, EAX);
- stl_phys(sm_state + 0x7fcc, env->dr[6]);
- stl_phys(sm_state + 0x7fc8, env->dr[7]);
-
- stl_phys(sm_state + 0x7fc4, env->tr.selector);
- stl_phys(sm_state + 0x7f64, env->tr.base);
- stl_phys(sm_state + 0x7f60, env->tr.limit);
- stl_phys(sm_state + 0x7f5c, (env->tr.flags >> 8) & 0xf0ff);
-
- stl_phys(sm_state + 0x7fc0, env->ldt.selector);
- stl_phys(sm_state + 0x7f80, env->ldt.base);
- stl_phys(sm_state + 0x7f7c, env->ldt.limit);
- stl_phys(sm_state + 0x7f78, (env->ldt.flags >> 8) & 0xf0ff);
-
- stl_phys(sm_state + 0x7f74, env->gdt.base);
- stl_phys(sm_state + 0x7f70, env->gdt.limit);
-
- stl_phys(sm_state + 0x7f58, env->idt.base);
- stl_phys(sm_state + 0x7f54, env->idt.limit);
-
- for(i = 0; i < 6; i++) {
- dt = &env->segs[i];
- if (i < 3)
- offset = 0x7f84 + i * 12;
- else
- offset = 0x7f2c + (i - 3) * 12;
- stl_phys(sm_state + 0x7fa8 + i * 4, dt->selector);
- stl_phys(sm_state + offset + 8, dt->base);
- stl_phys(sm_state + offset + 4, dt->limit);
- stl_phys(sm_state + offset, (dt->flags >> 8) & 0xf0ff);
- }
- stl_phys(sm_state + 0x7f14, env->cr[4]);
-
- stl_phys(sm_state + 0x7efc, SMM_REVISION_ID);
- stl_phys(sm_state + 0x7ef8, env->smbase);
-#endif
- /* init SMM cpu state */
-
-#ifdef TARGET_X86_64
- env->efer = 0;
- env->hflags &= ~HF_LMA_MASK;
-#endif
- load_eflags(0, ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
- env->eip = 0x00008000;
- cpu_x86_load_seg_cache(env, R_CS, (env->smbase >> 4) & 0xffff, env->smbase,
- 0xffffffff, 0);
- cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffffffff, 0);
- cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffffffff, 0);
- cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffffffff, 0);
- cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffffffff, 0);
- cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffffffff, 0);
-
- cpu_x86_update_cr0(env,
- env->cr[0] & ~(CR0_PE_MASK | CR0_EM_MASK | CR0_TS_MASK | CR0_PG_MASK));
- cpu_x86_update_cr4(env, 0);
- env->dr[7] = 0x00000400;
- CC_OP = CC_OP_EFLAGS;
-}
-
-void helper_rsm(void)
-{
- target_ulong sm_state;
- int i, offset;
- uint32_t val;
-
- sm_state = env->smbase + 0x8000;
-#ifdef TARGET_X86_64
- env->efer = ldq_phys(sm_state + 0x7ed0);
- if (env->efer & MSR_EFER_LMA)
- env->hflags |= HF_LMA_MASK;
- else
- env->hflags &= ~HF_LMA_MASK;
-
- for(i = 0; i < 6; i++) {
- offset = 0x7e00 + i * 16;
- cpu_x86_load_seg_cache(env, i,
- lduw_phys(sm_state + offset),
- ldq_phys(sm_state + offset + 8),
- ldl_phys(sm_state + offset + 4),
- (lduw_phys(sm_state + offset + 2) & 0xf0ff) << 8);
- }
-
- env->gdt.base = ldq_phys(sm_state + 0x7e68);
- env->gdt.limit = ldl_phys(sm_state + 0x7e64);
-
- env->ldt.selector = lduw_phys(sm_state + 0x7e70);
- env->ldt.base = ldq_phys(sm_state + 0x7e78);
- env->ldt.limit = ldl_phys(sm_state + 0x7e74);
- env->ldt.flags = (lduw_phys(sm_state + 0x7e72) & 0xf0ff) << 8;
-
- env->idt.base = ldq_phys(sm_state + 0x7e88);
- env->idt.limit = ldl_phys(sm_state + 0x7e84);
-
- env->tr.selector = lduw_phys(sm_state + 0x7e90);
- env->tr.base = ldq_phys(sm_state + 0x7e98);
- env->tr.limit = ldl_phys(sm_state + 0x7e94);
- env->tr.flags = (lduw_phys(sm_state + 0x7e92) & 0xf0ff) << 8;
-
- EAX = ldq_phys(sm_state + 0x7ff8);
- ECX = ldq_phys(sm_state + 0x7ff0);
- EDX = ldq_phys(sm_state + 0x7fe8);
- EBX = ldq_phys(sm_state + 0x7fe0);
- ESP = ldq_phys(sm_state + 0x7fd8);
- EBP = ldq_phys(sm_state + 0x7fd0);
- ESI = ldq_phys(sm_state + 0x7fc8);
- EDI = ldq_phys(sm_state + 0x7fc0);
- for(i = 8; i < 16; i++)
- env->regs[i] = ldq_phys(sm_state + 0x7ff8 - i * 8);
- env->eip = ldq_phys(sm_state + 0x7f78);
- load_eflags(ldl_phys(sm_state + 0x7f70),
- ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
- env->dr[6] = ldl_phys(sm_state + 0x7f68);
- env->dr[7] = ldl_phys(sm_state + 0x7f60);
-
- cpu_x86_update_cr4(env, ldl_phys(sm_state + 0x7f48));
- cpu_x86_update_cr3(env, ldl_phys(sm_state + 0x7f50));
- cpu_x86_update_cr0(env, ldl_phys(sm_state + 0x7f58));
-
- val = ldl_phys(sm_state + 0x7efc); /* revision ID */
- if (val & 0x20000) {
- env->smbase = ldl_phys(sm_state + 0x7f00) & ~0x7fff;
- }
-#else
- cpu_x86_update_cr0(env, ldl_phys(sm_state + 0x7ffc));
- cpu_x86_update_cr3(env, ldl_phys(sm_state + 0x7ff8));
- load_eflags(ldl_phys(sm_state + 0x7ff4),
- ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
- env->eip = ldl_phys(sm_state + 0x7ff0);
- EDI = ldl_phys(sm_state + 0x7fec);
- ESI = ldl_phys(sm_state + 0x7fe8);
- EBP = ldl_phys(sm_state + 0x7fe4);
- ESP = ldl_phys(sm_state + 0x7fe0);
- EBX = ldl_phys(sm_state + 0x7fdc);
- EDX = ldl_phys(sm_state + 0x7fd8);
- ECX = ldl_phys(sm_state + 0x7fd4);
- EAX = ldl_phys(sm_state + 0x7fd0);
- env->dr[6] = ldl_phys(sm_state + 0x7fcc);
- env->dr[7] = ldl_phys(sm_state + 0x7fc8);
-
- env->tr.selector = ldl_phys(sm_state + 0x7fc4) & 0xffff;
- env->tr.base = ldl_phys(sm_state + 0x7f64);
- env->tr.limit = ldl_phys(sm_state + 0x7f60);
- env->tr.flags = (ldl_phys(sm_state + 0x7f5c) & 0xf0ff) << 8;
-
- env->ldt.selector = ldl_phys(sm_state + 0x7fc0) & 0xffff;
- env->ldt.base = ldl_phys(sm_state + 0x7f80);
- env->ldt.limit = ldl_phys(sm_state + 0x7f7c);
- env->ldt.flags = (ldl_phys(sm_state + 0x7f78) & 0xf0ff) << 8;
-
- env->gdt.base = ldl_phys(sm_state + 0x7f74);
- env->gdt.limit = ldl_phys(sm_state + 0x7f70);
-
- env->idt.base = ldl_phys(sm_state + 0x7f58);
- env->idt.limit = ldl_phys(sm_state + 0x7f54);
-
- for(i = 0; i < 6; i++) {
- if (i < 3)
- offset = 0x7f84 + i * 12;
- else
- offset = 0x7f2c + (i - 3) * 12;
- cpu_x86_load_seg_cache(env, i,
- ldl_phys(sm_state + 0x7fa8 + i * 4) & 0xffff,
- ldl_phys(sm_state + offset + 8),
- ldl_phys(sm_state + offset + 4),
- (ldl_phys(sm_state + offset) & 0xf0ff) << 8);
- }
- cpu_x86_update_cr4(env, ldl_phys(sm_state + 0x7f14));
-
- val = ldl_phys(sm_state + 0x7efc); /* revision ID */
- if (val & 0x20000) {
- env->smbase = ldl_phys(sm_state + 0x7ef8) & ~0x7fff;
- }
-#endif
- CC_OP = CC_OP_EFLAGS;
- env->hflags &= ~HF_SMM_MASK;
- cpu_smm_update(env);
-
- if (loglevel & CPU_LOG_INT) {
- fprintf(logfile, "SMM: after RSM\n");
- cpu_dump_state(env, logfile, fprintf, X86_DUMP_CCOP);
- }
+ page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
+ paddr = (pte & TARGET_PAGE_MASK) + page_offset;
+ return paddr;
}
-
#endif /* !CONFIG_USER_ONLY */
-
-
-/* division, flags are undefined */
-
-void helper_divb_AL(target_ulong t0)
-{
- unsigned int num, den, q, r;
-
- num = (EAX & 0xffff);
- den = (t0 & 0xff);
- if (den == 0) {
- raise_exception(EXCP00_DIVZ);
- }
- q = (num / den);
- if (q > 0xff)
- raise_exception(EXCP00_DIVZ);
- q &= 0xff;
- r = (num % den) & 0xff;
- EAX = (EAX & ~0xffff) | (r << 8) | q;
-}
-
-void helper_idivb_AL(target_ulong t0)
-{
- int num, den, q, r;
-
- num = (int16_t)EAX;
- den = (int8_t)t0;
- if (den == 0) {
- raise_exception(EXCP00_DIVZ);
- }
- q = (num / den);
- if (q != (int8_t)q)
- raise_exception(EXCP00_DIVZ);
- q &= 0xff;
- r = (num % den) & 0xff;
- EAX = (EAX & ~0xffff) | (r << 8) | q;
-}
-
-void helper_divw_AX(target_ulong t0)
-{
- unsigned int num, den, q, r;
-
- num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
- den = (t0 & 0xffff);
- if (den == 0) {
- raise_exception(EXCP00_DIVZ);
- }
- q = (num / den);
- if (q > 0xffff)
- raise_exception(EXCP00_DIVZ);
- q &= 0xffff;
- r = (num % den) & 0xffff;
- EAX = (EAX & ~0xffff) | q;
- EDX = (EDX & ~0xffff) | r;
-}
-
-void helper_idivw_AX(target_ulong t0)
-{
- int num, den, q, r;
-
- num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
- den = (int16_t)t0;
- if (den == 0) {
- raise_exception(EXCP00_DIVZ);
- }
- q = (num / den);
- if (q != (int16_t)q)
- raise_exception(EXCP00_DIVZ);
- q &= 0xffff;
- r = (num % den) & 0xffff;
- EAX = (EAX & ~0xffff) | q;
- EDX = (EDX & ~0xffff) | r;
-}
-
-void helper_divl_EAX(target_ulong t0)
-{
- unsigned int den, r;
- uint64_t num, q;
-
- num = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
- den = t0;
- if (den == 0) {
- raise_exception(EXCP00_DIVZ);
- }
- q = (num / den);
- r = (num % den);
- if (q > 0xffffffff)
- raise_exception(EXCP00_DIVZ);
- EAX = (uint32_t)q;
- EDX = (uint32_t)r;
-}
-
-void helper_idivl_EAX(target_ulong t0)
-{
- int den, r;
- int64_t num, q;
-
- num = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
- den = t0;
- if (den == 0) {
- raise_exception(EXCP00_DIVZ);
- }
- q = (num / den);
- r = (num % den);
- if (q != (int32_t)q)
- raise_exception(EXCP00_DIVZ);
- EAX = (uint32_t)q;
- EDX = (uint32_t)r;
-}
-
-/* bcd */
-
-/* XXX: exception */
-void helper_aam(int base)
-{
- int al, ah;
- al = EAX & 0xff;
- ah = al / base;
- al = al % base;
- EAX = (EAX & ~0xffff) | al | (ah << 8);
- CC_DST = al;
-}
-
-void helper_aad(int base)
-{
- int al, ah;
- al = EAX & 0xff;
- ah = (EAX >> 8) & 0xff;
- al = ((ah * base) + al) & 0xff;
- EAX = (EAX & ~0xffff) | al;
- CC_DST = al;
-}
-
-void helper_aaa(void)
-{
- int icarry;
- int al, ah, af;
- int eflags;
-
- eflags = cc_table[CC_OP].compute_all();
- af = eflags & CC_A;
- al = EAX & 0xff;
- ah = (EAX >> 8) & 0xff;
-
- icarry = (al > 0xf9);
- if (((al & 0x0f) > 9 ) || af) {
- al = (al + 6) & 0x0f;
- ah = (ah + 1 + icarry) & 0xff;
- eflags |= CC_C | CC_A;
- } else {
- eflags &= ~(CC_C | CC_A);
- al &= 0x0f;
- }
- EAX = (EAX & ~0xffff) | al | (ah << 8);
- CC_SRC = eflags;
- FORCE_RET();
-}
-
-void helper_aas(void)
-{
- int icarry;
- int al, ah, af;
- int eflags;
-
- eflags = cc_table[CC_OP].compute_all();
- af = eflags & CC_A;
- al = EAX & 0xff;
- ah = (EAX >> 8) & 0xff;
-
- icarry = (al < 6);
- if (((al & 0x0f) > 9 ) || af) {
- al = (al - 6) & 0x0f;
- ah = (ah - 1 - icarry) & 0xff;
- eflags |= CC_C | CC_A;
- } else {
- eflags &= ~(CC_C | CC_A);
- al &= 0x0f;
- }
- EAX = (EAX & ~0xffff) | al | (ah << 8);
- CC_SRC = eflags;
- FORCE_RET();
-}
-
-void helper_daa(void)
-{
- int al, af, cf;
- int eflags;
-
- eflags = cc_table[CC_OP].compute_all();
- cf = eflags & CC_C;
- af = eflags & CC_A;
- al = EAX & 0xff;
-
- eflags = 0;
- if (((al & 0x0f) > 9 ) || af) {
- al = (al + 6) & 0xff;
- eflags |= CC_A;
- }
- if ((al > 0x9f) || cf) {
- al = (al + 0x60) & 0xff;
- eflags |= CC_C;
- }
- EAX = (EAX & ~0xff) | al;
- /* well, speed is not an issue here, so we compute the flags by hand */
- eflags |= (al == 0) << 6; /* zf */
- eflags |= parity_table[al]; /* pf */
- eflags |= (al & 0x80); /* sf */
- CC_SRC = eflags;
- FORCE_RET();
-}
-
-void helper_das(void)
-{
- int al, al1, af, cf;
- int eflags;
-
- eflags = cc_table[CC_OP].compute_all();
- cf = eflags & CC_C;
- af = eflags & CC_A;
- al = EAX & 0xff;
-
- eflags = 0;
- al1 = al;
- if (((al & 0x0f) > 9 ) || af) {
- eflags |= CC_A;
- if (al < 6 || cf)
- eflags |= CC_C;
- al = (al - 6) & 0xff;
- }
- if ((al1 > 0x99) || cf) {
- al = (al - 0x60) & 0xff;
- eflags |= CC_C;
- }
- EAX = (EAX & ~0xff) | al;
- /* well, speed is not an issue here, so we compute the flags by hand */
- eflags |= (al == 0) << 6; /* zf */
- eflags |= parity_table[al]; /* pf */
- eflags |= (al & 0x80); /* sf */
- CC_SRC = eflags;
- FORCE_RET();
-}
-
-void helper_into(int next_eip_addend)
-{
- int eflags;
- eflags = cc_table[CC_OP].compute_all();
- if (eflags & CC_O) {
- raise_interrupt(EXCP04_INTO, 1, 0, next_eip_addend);
- }
-}
-
-void helper_cmpxchg8b(target_ulong a0)
-{
- uint64_t d;
- int eflags;
-
- eflags = cc_table[CC_OP].compute_all();
- d = ldq(a0);
- if (d == (((uint64_t)EDX << 32) | (uint32_t)EAX)) {
- stq(a0, ((uint64_t)ECX << 32) | (uint32_t)EBX);
- eflags |= CC_Z;
- } else {
- EDX = (uint32_t)(d >> 32);
- EAX = (uint32_t)d;
- eflags &= ~CC_Z;
- }
- CC_SRC = eflags;
-}
-
-#ifdef TARGET_X86_64
-void helper_cmpxchg16b(target_ulong a0)
-{
- uint64_t d0, d1;
- int eflags;
-
- eflags = cc_table[CC_OP].compute_all();
- d0 = ldq(a0);
- d1 = ldq(a0 + 8);
- if (d0 == EAX && d1 == EDX) {
- stq(a0, EBX);
- stq(a0 + 8, ECX);
- eflags |= CC_Z;
- } else {
- EDX = d1;
- EAX = d0;
- eflags &= ~CC_Z;
- }
- CC_SRC = eflags;
-}
-#endif
-
-void helper_single_step(void)
-{
- env->dr[6] |= 0x4000;
- raise_exception(EXCP01_SSTP);
-}
-
-void helper_cpuid(void)
-{
- uint32_t index;
- index = (uint32_t)EAX;
-
- /* test if maximum index reached */
- if (index & 0x80000000) {
- if (index > env->cpuid_xlevel)
- index = env->cpuid_level;
- } else {
- if (index > env->cpuid_level)
- index = env->cpuid_level;
- }
-
- switch(index) {
- case 0:
- EAX = env->cpuid_level;
- EBX = env->cpuid_vendor1;
- EDX = env->cpuid_vendor2;
- ECX = env->cpuid_vendor3;
- break;
- case 1:
- EAX = env->cpuid_version;
- EBX = (env->cpuid_apic_id << 24) | 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
- ECX = env->cpuid_ext_features;
- EDX = env->cpuid_features;
- break;
- case 2:
- /* cache info: needed for Pentium Pro compatibility */
- EAX = 1;
- EBX = 0;
- ECX = 0;
- EDX = 0x2c307d;
- break;
- case 0x80000000:
- EAX = env->cpuid_xlevel;
- EBX = env->cpuid_vendor1;
- EDX = env->cpuid_vendor2;
- ECX = env->cpuid_vendor3;
- break;
- case 0x80000001:
- EAX = env->cpuid_features;
- EBX = 0;
- ECX = env->cpuid_ext3_features;
- EDX = env->cpuid_ext2_features;
- break;
- case 0x80000002:
- case 0x80000003:
- case 0x80000004:
- EAX = env->cpuid_model[(index - 0x80000002) * 4 + 0];
- EBX = env->cpuid_model[(index - 0x80000002) * 4 + 1];
- ECX = env->cpuid_model[(index - 0x80000002) * 4 + 2];
- EDX = env->cpuid_model[(index - 0x80000002) * 4 + 3];
- break;
- case 0x80000005:
- /* cache info (L1 cache) */
- EAX = 0x01ff01ff;
- EBX = 0x01ff01ff;
- ECX = 0x40020140;
- EDX = 0x40020140;
- break;
- case 0x80000006:
- /* cache info (L2 cache) */
- EAX = 0;
- EBX = 0x42004200;
- ECX = 0x02008140;
- EDX = 0;
- break;
- case 0x80000008:
- /* virtual & phys address size in low 2 bytes. */
-/* XXX: This value must match the one used in the MMU code. */
-#if defined(TARGET_X86_64)
-# if defined(USE_KQEMU)
- EAX = 0x00003020; /* 48 bits virtual, 32 bits physical */
-# else
-/* XXX: The physical address space is limited to 42 bits in exec.c. */
- EAX = 0x00003028; /* 48 bits virtual, 40 bits physical */
-# endif
-#else
-# if defined(USE_KQEMU)
- EAX = 0x00000020; /* 32 bits physical */
-# else
- EAX = 0x00000024; /* 36 bits physical */
-# endif
-#endif
- EBX = 0;
- ECX = 0;
- EDX = 0;
- break;
- case 0x8000000A:
- EAX = 0x00000001;
- EBX = 0;
- ECX = 0;
- EDX = 0;
- break;
- default:
- /* reserved values: zero */
- EAX = 0;
- EBX = 0;
- ECX = 0;
- EDX = 0;
- break;
- }
-}
-
-void helper_enter_level(int level, int data32, target_ulong t1)
-{
- target_ulong ssp;
- uint32_t esp_mask, esp, ebp;
-
- esp_mask = get_sp_mask(env->segs[R_SS].flags);
- ssp = env->segs[R_SS].base;
- ebp = EBP;
- esp = ESP;
- if (data32) {
- /* 32 bit */
- esp -= 4;
- while (--level) {
- esp -= 4;
- ebp -= 4;
- stl(ssp + (esp & esp_mask), ldl(ssp + (ebp & esp_mask)));
- }
- esp -= 4;
- stl(ssp + (esp & esp_mask), t1);
- } else {
- /* 16 bit */
- esp -= 2;
- while (--level) {
- esp -= 2;
- ebp -= 2;
- stw(ssp + (esp & esp_mask), lduw(ssp + (ebp & esp_mask)));
- }
- esp -= 2;
- stw(ssp + (esp & esp_mask), t1);
- }
-}
-
-#ifdef TARGET_X86_64
-void helper_enter64_level(int level, int data64, target_ulong t1)
-{
- target_ulong esp, ebp;
- ebp = EBP;
- esp = ESP;
-
- if (data64) {
- /* 64 bit */
- esp -= 8;
- while (--level) {
- esp -= 8;
- ebp -= 8;
- stq(esp, ldq(ebp));
- }
- esp -= 8;
- stq(esp, t1);
- } else {
- /* 16 bit */
- esp -= 2;
- while (--level) {
- esp -= 2;
- ebp -= 2;
- stw(esp, lduw(ebp));
- }
- esp -= 2;
- stw(esp, t1);
- }
-}
-#endif
-
-void helper_lldt(int selector)
-{
- SegmentCache *dt;
- uint32_t e1, e2;
- int index, entry_limit;
- target_ulong ptr;
-
- selector &= 0xffff;
- if ((selector & 0xfffc) == 0) {
- /* XXX: NULL selector case: invalid LDT */
- env->ldt.base = 0;
- env->ldt.limit = 0;
- } else {
- if (selector & 0x4)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- dt = &env->gdt;
- index = selector & ~7;
-#ifdef TARGET_X86_64
- if (env->hflags & HF_LMA_MASK)
- entry_limit = 15;
- else
-#endif
- entry_limit = 7;
- if ((index + entry_limit) > dt->limit)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- ptr = dt->base + index;
- e1 = ldl_kernel(ptr);
- e2 = ldl_kernel(ptr + 4);
- if ((e2 & DESC_S_MASK) || ((e2 >> DESC_TYPE_SHIFT) & 0xf) != 2)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
-#ifdef TARGET_X86_64
- if (env->hflags & HF_LMA_MASK) {
- uint32_t e3;
- e3 = ldl_kernel(ptr + 8);
- load_seg_cache_raw_dt(&env->ldt, e1, e2);
- env->ldt.base |= (target_ulong)e3 << 32;
- } else
-#endif
- {
- load_seg_cache_raw_dt(&env->ldt, e1, e2);
- }
- }
- env->ldt.selector = selector;
-}
-
-void helper_ltr(int selector)
-{
- SegmentCache *dt;
- uint32_t e1, e2;
- int index, type, entry_limit;
- target_ulong ptr;
-
- selector &= 0xffff;
- if ((selector & 0xfffc) == 0) {
- /* NULL selector case: invalid TR */
- env->tr.base = 0;
- env->tr.limit = 0;
- env->tr.flags = 0;
- } else {
- if (selector & 0x4)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- dt = &env->gdt;
- index = selector & ~7;
-#ifdef TARGET_X86_64
- if (env->hflags & HF_LMA_MASK)
- entry_limit = 15;
- else
-#endif
- entry_limit = 7;
- if ((index + entry_limit) > dt->limit)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- ptr = dt->base + index;
- e1 = ldl_kernel(ptr);
- e2 = ldl_kernel(ptr + 4);
- type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
- if ((e2 & DESC_S_MASK) ||
- (type != 1 && type != 9))
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
-#ifdef TARGET_X86_64
- if (env->hflags & HF_LMA_MASK) {
- uint32_t e3, e4;
- e3 = ldl_kernel(ptr + 8);
- e4 = ldl_kernel(ptr + 12);
- if ((e4 >> DESC_TYPE_SHIFT) & 0xf)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- load_seg_cache_raw_dt(&env->tr, e1, e2);
- env->tr.base |= (target_ulong)e3 << 32;
- } else
-#endif
- {
- load_seg_cache_raw_dt(&env->tr, e1, e2);
- }
- e2 |= DESC_TSS_BUSY_MASK;
- stl_kernel(ptr + 4, e2);
- }
- env->tr.selector = selector;
-}
-
-/* only works if protected mode and not VM86. seg_reg must be != R_CS */
-void helper_load_seg(int seg_reg, int selector)
-{
- uint32_t e1, e2;
- int cpl, dpl, rpl;
- SegmentCache *dt;
- int index;
- target_ulong ptr;
-
- selector &= 0xffff;
- cpl = env->hflags & HF_CPL_MASK;
- if ((selector & 0xfffc) == 0) {
- /* null selector case */
- if (seg_reg == R_SS
-#ifdef TARGET_X86_64
- && (!(env->hflags & HF_CS64_MASK) || cpl == 3)
-#endif
- )
- raise_exception_err(EXCP0D_GPF, 0);
- cpu_x86_load_seg_cache(env, seg_reg, selector, 0, 0, 0);
- } else {
-
- if (selector & 0x4)
- dt = &env->ldt;
- else
- dt = &env->gdt;
- index = selector & ~7;
- if ((index + 7) > dt->limit)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- ptr = dt->base + index;
- e1 = ldl_kernel(ptr);
- e2 = ldl_kernel(ptr + 4);
-
- if (!(e2 & DESC_S_MASK))
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- rpl = selector & 3;
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- if (seg_reg == R_SS) {
- /* must be writable segment */
- if ((e2 & DESC_CS_MASK) || !(e2 & DESC_W_MASK))
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- if (rpl != cpl || dpl != cpl)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- } else {
- /* must be readable segment */
- if ((e2 & (DESC_CS_MASK | DESC_R_MASK)) == DESC_CS_MASK)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
-
- if (!(e2 & DESC_CS_MASK) || !(e2 & DESC_C_MASK)) {
- /* if not conforming code, test rights */
- if (dpl < cpl || dpl < rpl)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- }
- }
-
- if (!(e2 & DESC_P_MASK)) {
- if (seg_reg == R_SS)
- raise_exception_err(EXCP0C_STACK, selector & 0xfffc);
- else
- raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
- }
-
- /* set the access bit if not already set */
- if (!(e2 & DESC_A_MASK)) {
- e2 |= DESC_A_MASK;
- stl_kernel(ptr + 4, e2);
- }
-
- cpu_x86_load_seg_cache(env, seg_reg, selector,
- get_seg_base(e1, e2),
- get_seg_limit(e1, e2),
- e2);
-#if 0
- fprintf(logfile, "load_seg: sel=0x%04x base=0x%08lx limit=0x%08lx flags=%08x\n",
- selector, (unsigned long)sc->base, sc->limit, sc->flags);
-#endif
- }
-}
-
-/* protected mode jump */
-void helper_ljmp_protected(int new_cs, target_ulong new_eip,
- int next_eip_addend)
-{
- int gate_cs, type;
- uint32_t e1, e2, cpl, dpl, rpl, limit;
- target_ulong next_eip;
-
- if ((new_cs & 0xfffc) == 0)
- raise_exception_err(EXCP0D_GPF, 0);
- if (load_segment(&e1, &e2, new_cs) != 0)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- cpl = env->hflags & HF_CPL_MASK;
- if (e2 & DESC_S_MASK) {
- if (!(e2 & DESC_CS_MASK))
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- if (e2 & DESC_C_MASK) {
- /* conforming code segment */
- if (dpl > cpl)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- } else {
- /* non conforming code segment */
- rpl = new_cs & 3;
- if (rpl > cpl)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- if (dpl != cpl)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- }
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
- limit = get_seg_limit(e1, e2);
- if (new_eip > limit &&
- !(env->hflags & HF_LMA_MASK) && !(e2 & DESC_L_MASK))
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl,
- get_seg_base(e1, e2), limit, e2);
- EIP = new_eip;
- } else {
- /* jump to call or task gate */
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- rpl = new_cs & 3;
- cpl = env->hflags & HF_CPL_MASK;
- type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
- switch(type) {
- case 1: /* 286 TSS */
- case 9: /* 386 TSS */
- case 5: /* task gate */
- if (dpl < cpl || dpl < rpl)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- next_eip = env->eip + next_eip_addend;
- switch_tss(new_cs, e1, e2, SWITCH_TSS_JMP, next_eip);
- CC_OP = CC_OP_EFLAGS;
- break;
- case 4: /* 286 call gate */
- case 12: /* 386 call gate */
- if ((dpl < cpl) || (dpl < rpl))
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
- gate_cs = e1 >> 16;
- new_eip = (e1 & 0xffff);
- if (type == 12)
- new_eip |= (e2 & 0xffff0000);
- if (load_segment(&e1, &e2, gate_cs) != 0)
- raise_exception_err(EXCP0D_GPF, gate_cs & 0xfffc);
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- /* must be code segment */
- if (((e2 & (DESC_S_MASK | DESC_CS_MASK)) !=
- (DESC_S_MASK | DESC_CS_MASK)))
- raise_exception_err(EXCP0D_GPF, gate_cs & 0xfffc);
- if (((e2 & DESC_C_MASK) && (dpl > cpl)) ||
- (!(e2 & DESC_C_MASK) && (dpl != cpl)))
- raise_exception_err(EXCP0D_GPF, gate_cs & 0xfffc);
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0D_GPF, gate_cs & 0xfffc);
- limit = get_seg_limit(e1, e2);
- if (new_eip > limit)
- raise_exception_err(EXCP0D_GPF, 0);
- cpu_x86_load_seg_cache(env, R_CS, (gate_cs & 0xfffc) | cpl,
- get_seg_base(e1, e2), limit, e2);
- EIP = new_eip;
- break;
- default:
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- break;
- }
- }
-}
-
-/* real mode call */
-void helper_lcall_real(int new_cs, target_ulong new_eip1,
- int shift, int next_eip)
-{
- int new_eip;
- uint32_t esp, esp_mask;
- target_ulong ssp;
-
- new_eip = new_eip1;
- esp = ESP;
- esp_mask = get_sp_mask(env->segs[R_SS].flags);
- ssp = env->segs[R_SS].base;
- if (shift) {
- PUSHL(ssp, esp, esp_mask, env->segs[R_CS].selector);
- PUSHL(ssp, esp, esp_mask, next_eip);
- } else {
- PUSHW(ssp, esp, esp_mask, env->segs[R_CS].selector);
- PUSHW(ssp, esp, esp_mask, next_eip);
- }
-
- SET_ESP(esp, esp_mask);
- env->eip = new_eip;
- env->segs[R_CS].selector = new_cs;
- env->segs[R_CS].base = (new_cs << 4);
-}
-
-/* protected mode call */
-void helper_lcall_protected(int new_cs, target_ulong new_eip,
- int shift, int next_eip_addend)
-{
- int new_stack, i;
- uint32_t e1, e2, cpl, dpl, rpl, selector, offset, param_count;
- uint32_t ss, ss_e1, ss_e2, sp, type, ss_dpl, sp_mask;
- uint32_t val, limit, old_sp_mask;
- target_ulong ssp, old_ssp, next_eip;
-
- next_eip = env->eip + next_eip_addend;
-#ifdef DEBUG_PCALL
- if (loglevel & CPU_LOG_PCALL) {
- fprintf(logfile, "lcall %04x:%08x s=%d\n",
- new_cs, (uint32_t)new_eip, shift);
- cpu_dump_state(env, logfile, fprintf, X86_DUMP_CCOP);
- }
-#endif
- if ((new_cs & 0xfffc) == 0)
- raise_exception_err(EXCP0D_GPF, 0);
- if (load_segment(&e1, &e2, new_cs) != 0)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- cpl = env->hflags & HF_CPL_MASK;
-#ifdef DEBUG_PCALL
- if (loglevel & CPU_LOG_PCALL) {
- fprintf(logfile, "desc=%08x:%08x\n", e1, e2);
- }
-#endif
- if (e2 & DESC_S_MASK) {
- if (!(e2 & DESC_CS_MASK))
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- if (e2 & DESC_C_MASK) {
- /* conforming code segment */
- if (dpl > cpl)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- } else {
- /* non conforming code segment */
- rpl = new_cs & 3;
- if (rpl > cpl)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- if (dpl != cpl)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- }
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
-
-#ifdef TARGET_X86_64
- /* XXX: check 16/32 bit cases in long mode */
- if (shift == 2) {
- target_ulong rsp;
- /* 64 bit case */
- rsp = ESP;
- PUSHQ(rsp, env->segs[R_CS].selector);
- PUSHQ(rsp, next_eip);
- /* from this point, not restartable */
- ESP = rsp;
- cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl,
- get_seg_base(e1, e2),
- get_seg_limit(e1, e2), e2);
- EIP = new_eip;
- } else
-#endif
- {
- sp = ESP;
- sp_mask = get_sp_mask(env->segs[R_SS].flags);
- ssp = env->segs[R_SS].base;
- if (shift) {
- PUSHL(ssp, sp, sp_mask, env->segs[R_CS].selector);
- PUSHL(ssp, sp, sp_mask, next_eip);
- } else {
- PUSHW(ssp, sp, sp_mask, env->segs[R_CS].selector);
- PUSHW(ssp, sp, sp_mask, next_eip);
- }
-
- limit = get_seg_limit(e1, e2);
- if (new_eip > limit)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- /* from this point, not restartable */
- SET_ESP(sp, sp_mask);
- cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl,
- get_seg_base(e1, e2), limit, e2);
- EIP = new_eip;
- }
- } else {
- /* check gate type */
- type = (e2 >> DESC_TYPE_SHIFT) & 0x1f;
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- rpl = new_cs & 3;
- switch(type) {
- case 1: /* available 286 TSS */
- case 9: /* available 386 TSS */
- case 5: /* task gate */
- if (dpl < cpl || dpl < rpl)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- switch_tss(new_cs, e1, e2, SWITCH_TSS_CALL, next_eip);
- CC_OP = CC_OP_EFLAGS;
- return;
- case 4: /* 286 call gate */
- case 12: /* 386 call gate */
- break;
- default:
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- break;
- }
- shift = type >> 3;
-
- if (dpl < cpl || dpl < rpl)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- /* check valid bit */
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
- selector = e1 >> 16;
- offset = (e2 & 0xffff0000) | (e1 & 0x0000ffff);
- param_count = e2 & 0x1f;
- if ((selector & 0xfffc) == 0)
- raise_exception_err(EXCP0D_GPF, 0);
-
- if (load_segment(&e1, &e2, selector) != 0)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK)))
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- if (dpl > cpl)
- raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
-
- if (!(e2 & DESC_C_MASK) && dpl < cpl) {
- /* to inner privilege */
- get_ss_esp_from_tss(&ss, &sp, dpl);
-#ifdef DEBUG_PCALL
- if (loglevel & CPU_LOG_PCALL)
- fprintf(logfile, "new ss:esp=%04x:%08x param_count=%d ESP=" TARGET_FMT_lx "\n",
- ss, sp, param_count, ESP);
-#endif
- if ((ss & 0xfffc) == 0)
- raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
- if ((ss & 3) != dpl)
- raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
- if (load_segment(&ss_e1, &ss_e2, ss) != 0)
- raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
- ss_dpl = (ss_e2 >> DESC_DPL_SHIFT) & 3;
- if (ss_dpl != dpl)
- raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
- if (!(ss_e2 & DESC_S_MASK) ||
- (ss_e2 & DESC_CS_MASK) ||
- !(ss_e2 & DESC_W_MASK))
- raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
- if (!(ss_e2 & DESC_P_MASK))
- raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
-
- // push_size = ((param_count * 2) + 8) << shift;
-
- old_sp_mask = get_sp_mask(env->segs[R_SS].flags);
- old_ssp = env->segs[R_SS].base;
-
- sp_mask = get_sp_mask(ss_e2);
- ssp = get_seg_base(ss_e1, ss_e2);
- if (shift) {
- PUSHL(ssp, sp, sp_mask, env->segs[R_SS].selector);
- PUSHL(ssp, sp, sp_mask, ESP);
- for(i = param_count - 1; i >= 0; i--) {
- val = ldl_kernel(old_ssp + ((ESP + i * 4) & old_sp_mask));
- PUSHL(ssp, sp, sp_mask, val);
- }
- } else {
- PUSHW(ssp, sp, sp_mask, env->segs[R_SS].selector);
- PUSHW(ssp, sp, sp_mask, ESP);
- for(i = param_count - 1; i >= 0; i--) {
- val = lduw_kernel(old_ssp + ((ESP + i * 2) & old_sp_mask));
- PUSHW(ssp, sp, sp_mask, val);
- }
- }
- new_stack = 1;
- } else {
- /* to same privilege */
- sp = ESP;
- sp_mask = get_sp_mask(env->segs[R_SS].flags);
- ssp = env->segs[R_SS].base;
- // push_size = (4 << shift);
- new_stack = 0;
- }
-
- if (shift) {
- PUSHL(ssp, sp, sp_mask, env->segs[R_CS].selector);
- PUSHL(ssp, sp, sp_mask, next_eip);
- } else {
- PUSHW(ssp, sp, sp_mask, env->segs[R_CS].selector);
- PUSHW(ssp, sp, sp_mask, next_eip);
- }
-
- /* from this point, not restartable */
-
- if (new_stack) {
- ss = (ss & ~3) | dpl;
- cpu_x86_load_seg_cache(env, R_SS, ss,
- ssp,
- get_seg_limit(ss_e1, ss_e2),
- ss_e2);
- }
-
- selector = (selector & ~3) | dpl;
- cpu_x86_load_seg_cache(env, R_CS, selector,
- get_seg_base(e1, e2),
- get_seg_limit(e1, e2),
- e2);
- cpu_x86_set_cpl(env, dpl);
- SET_ESP(sp, sp_mask);
- EIP = offset;
- }
-#ifdef USE_KQEMU
- if (kqemu_is_ok(env)) {
- env->exception_index = -1;
- cpu_loop_exit();
- }
-#endif
-}
-
-/* real and vm86 mode iret */
-void helper_iret_real(int shift)
-{
- uint32_t sp, new_cs, new_eip, new_eflags, sp_mask;
- target_ulong ssp;
- int eflags_mask;
-
- sp_mask = 0xffff; /* XXXX: use SS segment size ? */
- sp = ESP;
- ssp = env->segs[R_SS].base;
- if (shift == 1) {
- /* 32 bits */
- POPL(ssp, sp, sp_mask, new_eip);
- POPL(ssp, sp, sp_mask, new_cs);
- new_cs &= 0xffff;
- POPL(ssp, sp, sp_mask, new_eflags);
- } else {
- /* 16 bits */
- POPW(ssp, sp, sp_mask, new_eip);
- POPW(ssp, sp, sp_mask, new_cs);
- POPW(ssp, sp, sp_mask, new_eflags);
- }
- ESP = (ESP & ~sp_mask) | (sp & sp_mask);
- load_seg_vm(R_CS, new_cs);
- env->eip = new_eip;
- if (env->eflags & VM_MASK)
- eflags_mask = TF_MASK | AC_MASK | ID_MASK | IF_MASK | RF_MASK | NT_MASK;
- else
- eflags_mask = TF_MASK | AC_MASK | ID_MASK | IF_MASK | IOPL_MASK | RF_MASK | NT_MASK;
- if (shift == 0)
- eflags_mask &= 0xffff;
- load_eflags(new_eflags, eflags_mask);
- env->hflags &= ~HF_NMI_MASK;
-}
-
-static inline void validate_seg(int seg_reg, int cpl)
-{
- int dpl;
- uint32_t e2;
-
- /* XXX: on x86_64, we do not want to nullify FS and GS because
- they may still contain a valid base. I would be interested to
- know how a real x86_64 CPU behaves */
- if ((seg_reg == R_FS || seg_reg == R_GS) &&
- (env->segs[seg_reg].selector & 0xfffc) == 0)
- return;
-
- e2 = env->segs[seg_reg].flags;
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- if (!(e2 & DESC_CS_MASK) || !(e2 & DESC_C_MASK)) {
- /* data or non conforming code segment */
- if (dpl < cpl) {
- cpu_x86_load_seg_cache(env, seg_reg, 0, 0, 0, 0);
- }
- }
-}
-
-/* protected mode iret */
-static inline void helper_ret_protected(int shift, int is_iret, int addend)
-{
- uint32_t new_cs, new_eflags, new_ss;
- uint32_t new_es, new_ds, new_fs, new_gs;
- uint32_t e1, e2, ss_e1, ss_e2;
- int cpl, dpl, rpl, eflags_mask, iopl;
- target_ulong ssp, sp, new_eip, new_esp, sp_mask;
-
-#ifdef TARGET_X86_64
- if (shift == 2)
- sp_mask = -1;
- else
-#endif
- sp_mask = get_sp_mask(env->segs[R_SS].flags);
- sp = ESP;
- ssp = env->segs[R_SS].base;
- new_eflags = 0; /* avoid warning */
-#ifdef TARGET_X86_64
- if (shift == 2) {
- POPQ(sp, new_eip);
- POPQ(sp, new_cs);
- new_cs &= 0xffff;
- if (is_iret) {
- POPQ(sp, new_eflags);
- }
- } else
-#endif
- if (shift == 1) {
- /* 32 bits */
- POPL(ssp, sp, sp_mask, new_eip);
- POPL(ssp, sp, sp_mask, new_cs);
- new_cs &= 0xffff;
- if (is_iret) {
- POPL(ssp, sp, sp_mask, new_eflags);
- if (new_eflags & VM_MASK)
- goto return_to_vm86;
- }
- } else {
- /* 16 bits */
- POPW(ssp, sp, sp_mask, new_eip);
- POPW(ssp, sp, sp_mask, new_cs);
- if (is_iret)
- POPW(ssp, sp, sp_mask, new_eflags);
- }
-#ifdef DEBUG_PCALL
- if (loglevel & CPU_LOG_PCALL) {
- fprintf(logfile, "lret new %04x:" TARGET_FMT_lx " s=%d addend=0x%x\n",
- new_cs, new_eip, shift, addend);
- cpu_dump_state(env, logfile, fprintf, X86_DUMP_CCOP);
- }
-#endif
- if ((new_cs & 0xfffc) == 0)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- if (load_segment(&e1, &e2, new_cs) != 0)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- if (!(e2 & DESC_S_MASK) ||
- !(e2 & DESC_CS_MASK))
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- cpl = env->hflags & HF_CPL_MASK;
- rpl = new_cs & 3;
- if (rpl < cpl)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- if (e2 & DESC_C_MASK) {
- if (dpl > rpl)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- } else {
- if (dpl != rpl)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- }
- if (!(e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
-
- sp += addend;
- if (rpl == cpl && (!(env->hflags & HF_CS64_MASK) ||
- ((env->hflags & HF_CS64_MASK) && !is_iret))) {
- /* return to same priledge level */
- cpu_x86_load_seg_cache(env, R_CS, new_cs,
- get_seg_base(e1, e2),
- get_seg_limit(e1, e2),
- e2);
- } else {
- /* return to different privilege level */
-#ifdef TARGET_X86_64
- if (shift == 2) {
- POPQ(sp, new_esp);
- POPQ(sp, new_ss);
- new_ss &= 0xffff;
- } else
-#endif
- if (shift == 1) {
- /* 32 bits */
- POPL(ssp, sp, sp_mask, new_esp);
- POPL(ssp, sp, sp_mask, new_ss);
- new_ss &= 0xffff;
- } else {
- /* 16 bits */
- POPW(ssp, sp, sp_mask, new_esp);
- POPW(ssp, sp, sp_mask, new_ss);
- }
-#ifdef DEBUG_PCALL
- if (loglevel & CPU_LOG_PCALL) {
- fprintf(logfile, "new ss:esp=%04x:" TARGET_FMT_lx "\n",
- new_ss, new_esp);
- }
-#endif
- if ((new_ss & 0xfffc) == 0) {
-#ifdef TARGET_X86_64
- /* NULL ss is allowed in long mode if cpl != 3*/
- /* XXX: test CS64 ? */
- if ((env->hflags & HF_LMA_MASK) && rpl != 3) {
- cpu_x86_load_seg_cache(env, R_SS, new_ss,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
- DESC_S_MASK | (rpl << DESC_DPL_SHIFT) |
- DESC_W_MASK | DESC_A_MASK);
- ss_e2 = DESC_B_MASK; /* XXX: should not be needed ? */
- } else
-#endif
- {
- raise_exception_err(EXCP0D_GPF, 0);
- }
- } else {
- if ((new_ss & 3) != rpl)
- raise_exception_err(EXCP0D_GPF, new_ss & 0xfffc);
- if (load_segment(&ss_e1, &ss_e2, new_ss) != 0)
- raise_exception_err(EXCP0D_GPF, new_ss & 0xfffc);
- if (!(ss_e2 & DESC_S_MASK) ||
- (ss_e2 & DESC_CS_MASK) ||
- !(ss_e2 & DESC_W_MASK))
- raise_exception_err(EXCP0D_GPF, new_ss & 0xfffc);
- dpl = (ss_e2 >> DESC_DPL_SHIFT) & 3;
- if (dpl != rpl)
- raise_exception_err(EXCP0D_GPF, new_ss & 0xfffc);
- if (!(ss_e2 & DESC_P_MASK))
- raise_exception_err(EXCP0B_NOSEG, new_ss & 0xfffc);
- cpu_x86_load_seg_cache(env, R_SS, new_ss,
- get_seg_base(ss_e1, ss_e2),
- get_seg_limit(ss_e1, ss_e2),
- ss_e2);
- }
-
- cpu_x86_load_seg_cache(env, R_CS, new_cs,
- get_seg_base(e1, e2),
- get_seg_limit(e1, e2),
- e2);
- cpu_x86_set_cpl(env, rpl);
- sp = new_esp;
-#ifdef TARGET_X86_64
- if (env->hflags & HF_CS64_MASK)
- sp_mask = -1;
- else
-#endif
- sp_mask = get_sp_mask(ss_e2);
-
- /* validate data segments */
- validate_seg(R_ES, rpl);
- validate_seg(R_DS, rpl);
- validate_seg(R_FS, rpl);
- validate_seg(R_GS, rpl);
-
- sp += addend;
- }
- SET_ESP(sp, sp_mask);
- env->eip = new_eip;
- if (is_iret) {
- /* NOTE: 'cpl' is the _old_ CPL */
- eflags_mask = TF_MASK | AC_MASK | ID_MASK | RF_MASK | NT_MASK;
- if (cpl == 0)
- eflags_mask |= IOPL_MASK;
- iopl = (env->eflags >> IOPL_SHIFT) & 3;
- if (cpl <= iopl)
- eflags_mask |= IF_MASK;
- if (shift == 0)
- eflags_mask &= 0xffff;
- load_eflags(new_eflags, eflags_mask);
- }
- return;
-
- return_to_vm86:
- POPL(ssp, sp, sp_mask, new_esp);
- POPL(ssp, sp, sp_mask, new_ss);
- POPL(ssp, sp, sp_mask, new_es);
- POPL(ssp, sp, sp_mask, new_ds);
- POPL(ssp, sp, sp_mask, new_fs);
- POPL(ssp, sp, sp_mask, new_gs);
-
- /* modify processor state */
- load_eflags(new_eflags, TF_MASK | AC_MASK | ID_MASK |
- IF_MASK | IOPL_MASK | VM_MASK | NT_MASK | VIF_MASK | VIP_MASK);
- load_seg_vm(R_CS, new_cs & 0xffff);
- cpu_x86_set_cpl(env, 3);
- load_seg_vm(R_SS, new_ss & 0xffff);
- load_seg_vm(R_ES, new_es & 0xffff);
- load_seg_vm(R_DS, new_ds & 0xffff);
- load_seg_vm(R_FS, new_fs & 0xffff);
- load_seg_vm(R_GS, new_gs & 0xffff);
-
- env->eip = new_eip & 0xffff;
- ESP = new_esp;
-}
-
-void helper_iret_protected(int shift, int next_eip)
-{
- int tss_selector, type;
- uint32_t e1, e2;
-
- /* specific case for TSS */
- if (env->eflags & NT_MASK) {
-#ifdef TARGET_X86_64
- if (env->hflags & HF_LMA_MASK)
- raise_exception_err(EXCP0D_GPF, 0);
-#endif
- tss_selector = lduw_kernel(env->tr.base + 0);
- if (tss_selector & 4)
- raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
- if (load_segment(&e1, &e2, tss_selector) != 0)
- raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
- type = (e2 >> DESC_TYPE_SHIFT) & 0x17;
- /* NOTE: we check both segment and busy TSS */
- if (type != 3)
- raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
- switch_tss(tss_selector, e1, e2, SWITCH_TSS_IRET, next_eip);
- } else {
- helper_ret_protected(shift, 1, 0);
- }
- env->hflags &= ~HF_NMI_MASK;
-#ifdef USE_KQEMU
- if (kqemu_is_ok(env)) {
- CC_OP = CC_OP_EFLAGS;
- env->exception_index = -1;
- cpu_loop_exit();
- }
-#endif
-}
-
-void helper_lret_protected(int shift, int addend)
-{
- helper_ret_protected(shift, 0, addend);
-#ifdef USE_KQEMU
- if (kqemu_is_ok(env)) {
- env->exception_index = -1;
- cpu_loop_exit();
- }
-#endif
-}
-
-void helper_sysenter(void)
-{
- if (env->sysenter_cs == 0) {
- raise_exception_err(EXCP0D_GPF, 0);
- }
- env->eflags &= ~(VM_MASK | IF_MASK | RF_MASK);
- cpu_x86_set_cpl(env, 0);
- cpu_x86_load_seg_cache(env, R_CS, env->sysenter_cs & 0xfffc,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
- DESC_S_MASK |
- DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK);
- cpu_x86_load_seg_cache(env, R_SS, (env->sysenter_cs + 8) & 0xfffc,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
- DESC_S_MASK |
- DESC_W_MASK | DESC_A_MASK);
- ESP = env->sysenter_esp;
- EIP = env->sysenter_eip;
-}
-
-void helper_sysexit(void)
-{
- int cpl;
-
- cpl = env->hflags & HF_CPL_MASK;
- if (env->sysenter_cs == 0 || cpl != 0) {
- raise_exception_err(EXCP0D_GPF, 0);
- }
- cpu_x86_set_cpl(env, 3);
- cpu_x86_load_seg_cache(env, R_CS, ((env->sysenter_cs + 16) & 0xfffc) | 3,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
- DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
- DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK);
- cpu_x86_load_seg_cache(env, R_SS, ((env->sysenter_cs + 24) & 0xfffc) | 3,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
- DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
- DESC_W_MASK | DESC_A_MASK);
- ESP = ECX;
- EIP = EDX;
-#ifdef USE_KQEMU
- if (kqemu_is_ok(env)) {
- env->exception_index = -1;
- cpu_loop_exit();
- }
-#endif
-}
-
-void helper_movl_crN_T0(int reg, target_ulong t0)
-{
-#if !defined(CONFIG_USER_ONLY)
- switch(reg) {
- case 0:
- cpu_x86_update_cr0(env, t0);
- break;
- case 3:
- cpu_x86_update_cr3(env, t0);
- break;
- case 4:
- cpu_x86_update_cr4(env, t0);
- break;
- case 8:
- cpu_set_apic_tpr(env, t0);
- env->cr[8] = t0;
- break;
- default:
- env->cr[reg] = t0;
- break;
- }
-#endif
-}
-
-void helper_lmsw(target_ulong t0)
-{
- /* only 4 lower bits of CR0 are modified. PE cannot be set to zero
- if already set to one. */
- t0 = (env->cr[0] & ~0xe) | (t0 & 0xf);
- helper_movl_crN_T0(0, t0);
-}
-
-void helper_clts(void)
-{
- env->cr[0] &= ~CR0_TS_MASK;
- env->hflags &= ~HF_TS_MASK;
-}
-
-#if !defined(CONFIG_USER_ONLY)
-target_ulong helper_movtl_T0_cr8(void)
-{
- return cpu_get_apic_tpr(env);
-}
-#endif
-
-/* XXX: do more */
-void helper_movl_drN_T0(int reg, target_ulong t0)
-{
- env->dr[reg] = t0;
-}
-
-void helper_invlpg(target_ulong addr)
-{
- cpu_x86_flush_tlb(env, addr);
-}
-
-void helper_rdtsc(void)
-{
- uint64_t val;
-
- if ((env->cr[4] & CR4_TSD_MASK) && ((env->hflags & HF_CPL_MASK) != 0)) {
- raise_exception(EXCP0D_GPF);
- }
- val = cpu_get_tsc(env);
- EAX = (uint32_t)(val);
- EDX = (uint32_t)(val >> 32);
-}
-
-void helper_rdpmc(void)
-{
- if ((env->cr[4] & CR4_PCE_MASK) && ((env->hflags & HF_CPL_MASK) != 0)) {
- raise_exception(EXCP0D_GPF);
- }
-
- helper_svm_check_intercept_param(SVM_EXIT_RDPMC, 0);
-
- /* currently unimplemented */
- raise_exception_err(EXCP06_ILLOP, 0);
-}
-
-#if defined(CONFIG_USER_ONLY)
-void helper_wrmsr(void)
-{
-}
-
-void helper_rdmsr(void)
-{
-}
-#else
-void helper_wrmsr(void)
-{
- uint64_t val;
-
- val = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
-
- switch((uint32_t)ECX) {
- case MSR_IA32_SYSENTER_CS:
- env->sysenter_cs = val & 0xffff;
- break;
- case MSR_IA32_SYSENTER_ESP:
- env->sysenter_esp = val;
- break;
- case MSR_IA32_SYSENTER_EIP:
- env->sysenter_eip = val;
- break;
- case MSR_IA32_APICBASE:
- cpu_set_apic_base(env, val);
- break;
- case MSR_EFER:
- {
- uint64_t update_mask;
- update_mask = 0;
- if (env->cpuid_ext2_features & CPUID_EXT2_SYSCALL)
- update_mask |= MSR_EFER_SCE;
- if (env->cpuid_ext2_features & CPUID_EXT2_LM)
- update_mask |= MSR_EFER_LME;
- if (env->cpuid_ext2_features & CPUID_EXT2_FFXSR)
- update_mask |= MSR_EFER_FFXSR;
- if (env->cpuid_ext2_features & CPUID_EXT2_NX)
- update_mask |= MSR_EFER_NXE;
- env->efer = (env->efer & ~update_mask) |
- (val & update_mask);
- }
- break;
- case MSR_STAR:
- env->star = val;
- break;
- case MSR_PAT:
- env->pat = val;
- break;
- case MSR_VM_HSAVE_PA:
- env->vm_hsave = val;
- break;
-#ifdef TARGET_X86_64
- case MSR_LSTAR:
- env->lstar = val;
- break;
- case MSR_CSTAR:
- env->cstar = val;
- break;
- case MSR_FMASK:
- env->fmask = val;
- break;
- case MSR_FSBASE:
- env->segs[R_FS].base = val;
- break;
- case MSR_GSBASE:
- env->segs[R_GS].base = val;
- break;
- case MSR_KERNELGSBASE:
- env->kernelgsbase = val;
- break;
-#endif
- default:
- /* XXX: exception ? */
- break;
- }
-}
-
-void helper_rdmsr(void)
-{
- uint64_t val;
- switch((uint32_t)ECX) {
- case MSR_IA32_SYSENTER_CS:
- val = env->sysenter_cs;
- break;
- case MSR_IA32_SYSENTER_ESP:
- val = env->sysenter_esp;
- break;
- case MSR_IA32_SYSENTER_EIP:
- val = env->sysenter_eip;
- break;
- case MSR_IA32_APICBASE:
- val = cpu_get_apic_base(env);
- break;
- case MSR_EFER:
- val = env->efer;
- break;
- case MSR_STAR:
- val = env->star;
- break;
- case MSR_PAT:
- val = env->pat;
- break;
- case MSR_VM_HSAVE_PA:
- val = env->vm_hsave;
- break;
-#ifdef TARGET_X86_64
- case MSR_LSTAR:
- val = env->lstar;
- break;
- case MSR_CSTAR:
- val = env->cstar;
- break;
- case MSR_FMASK:
- val = env->fmask;
- break;
- case MSR_FSBASE:
- val = env->segs[R_FS].base;
- break;
- case MSR_GSBASE:
- val = env->segs[R_GS].base;
- break;
- case MSR_KERNELGSBASE:
- val = env->kernelgsbase;
- break;
-#endif
- default:
- /* XXX: exception ? */
- val = 0;
- break;
- }
- EAX = (uint32_t)(val);
- EDX = (uint32_t)(val >> 32);
-}
-#endif
-
-target_ulong helper_lsl(target_ulong selector1)
-{
- unsigned int limit;
- uint32_t e1, e2, eflags, selector;
- int rpl, dpl, cpl, type;
-
- selector = selector1 & 0xffff;
- eflags = cc_table[CC_OP].compute_all();
- if (load_segment(&e1, &e2, selector) != 0)
- goto fail;
- rpl = selector & 3;
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- cpl = env->hflags & HF_CPL_MASK;
- if (e2 & DESC_S_MASK) {
- if ((e2 & DESC_CS_MASK) && (e2 & DESC_C_MASK)) {
- /* conforming */
- } else {
- if (dpl < cpl || dpl < rpl)
- goto fail;
- }
- } else {
- type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
- switch(type) {
- case 1:
- case 2:
- case 3:
- case 9:
- case 11:
- break;
- default:
- goto fail;
- }
- if (dpl < cpl || dpl < rpl) {
- fail:
- CC_SRC = eflags & ~CC_Z;
- return 0;
- }
- }
- limit = get_seg_limit(e1, e2);
- CC_SRC = eflags | CC_Z;
- return limit;
-}
-
-target_ulong helper_lar(target_ulong selector1)
-{
- uint32_t e1, e2, eflags, selector;
- int rpl, dpl, cpl, type;
-
- selector = selector1 & 0xffff;
- eflags = cc_table[CC_OP].compute_all();
- if ((selector & 0xfffc) == 0)
- goto fail;
- if (load_segment(&e1, &e2, selector) != 0)
- goto fail;
- rpl = selector & 3;
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- cpl = env->hflags & HF_CPL_MASK;
- if (e2 & DESC_S_MASK) {
- if ((e2 & DESC_CS_MASK) && (e2 & DESC_C_MASK)) {
- /* conforming */
- } else {
- if (dpl < cpl || dpl < rpl)
- goto fail;
- }
- } else {
- type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
- switch(type) {
- case 1:
- case 2:
- case 3:
- case 4:
- case 5:
- case 9:
- case 11:
- case 12:
- break;
- default:
- goto fail;
- }
- if (dpl < cpl || dpl < rpl) {
- fail:
- CC_SRC = eflags & ~CC_Z;
- return 0;
- }
- }
- CC_SRC = eflags | CC_Z;
- return e2 & 0x00f0ff00;
-}
-
-void helper_verr(target_ulong selector1)
-{
- uint32_t e1, e2, eflags, selector;
- int rpl, dpl, cpl;
-
- selector = selector1 & 0xffff;
- eflags = cc_table[CC_OP].compute_all();
- if ((selector & 0xfffc) == 0)
- goto fail;
- if (load_segment(&e1, &e2, selector) != 0)
- goto fail;
- if (!(e2 & DESC_S_MASK))
- goto fail;
- rpl = selector & 3;
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- cpl = env->hflags & HF_CPL_MASK;
- if (e2 & DESC_CS_MASK) {
- if (!(e2 & DESC_R_MASK))
- goto fail;
- if (!(e2 & DESC_C_MASK)) {
- if (dpl < cpl || dpl < rpl)
- goto fail;
- }
- } else {
- if (dpl < cpl || dpl < rpl) {
- fail:
- CC_SRC = eflags & ~CC_Z;
- return;
- }
- }
- CC_SRC = eflags | CC_Z;
-}
-
-void helper_verw(target_ulong selector1)
-{
- uint32_t e1, e2, eflags, selector;
- int rpl, dpl, cpl;
-
- selector = selector1 & 0xffff;
- eflags = cc_table[CC_OP].compute_all();
- if ((selector & 0xfffc) == 0)
- goto fail;
- if (load_segment(&e1, &e2, selector) != 0)
- goto fail;
- if (!(e2 & DESC_S_MASK))
- goto fail;
- rpl = selector & 3;
- dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- cpl = env->hflags & HF_CPL_MASK;
- if (e2 & DESC_CS_MASK) {
- goto fail;
- } else {
- if (dpl < cpl || dpl < rpl)
- goto fail;
- if (!(e2 & DESC_W_MASK)) {
- fail:
- CC_SRC = eflags & ~CC_Z;
- return;
- }
- }
- CC_SRC = eflags | CC_Z;
-}
-
-/* x87 FPU helpers */
-
-static void fpu_set_exception(int mask)
-{
- env->fpus |= mask;
- if (env->fpus & (~env->fpuc & FPUC_EM))
- env->fpus |= FPUS_SE | FPUS_B;
-}
-
-static inline CPU86_LDouble helper_fdiv(CPU86_LDouble a, CPU86_LDouble b)
-{
- if (b == 0.0)
- fpu_set_exception(FPUS_ZE);
- return a / b;
-}
-
-void fpu_raise_exception(void)
-{
- if (env->cr[0] & CR0_NE_MASK) {
- raise_exception(EXCP10_COPR);
- }
-#if !defined(CONFIG_USER_ONLY)
- else {
- cpu_set_ferr(env);
- }
-#endif
-}
-
-void helper_flds_FT0(uint32_t val)
-{
- union {
- float32 f;
- uint32_t i;
- } u;
- u.i = val;
- FT0 = float32_to_floatx(u.f, &env->fp_status);
-}
-
-void helper_fldl_FT0(uint64_t val)
-{
- union {
- float64 f;
- uint64_t i;
- } u;
- u.i = val;
- FT0 = float64_to_floatx(u.f, &env->fp_status);
-}
-
-void helper_fildl_FT0(int32_t val)
-{
- FT0 = int32_to_floatx(val, &env->fp_status);
-}
-
-void helper_flds_ST0(uint32_t val)
-{
- int new_fpstt;
- union {
- float32 f;
- uint32_t i;
- } u;
- new_fpstt = (env->fpstt - 1) & 7;
- u.i = val;
- env->fpregs[new_fpstt].d = float32_to_floatx(u.f, &env->fp_status);
- env->fpstt = new_fpstt;
- env->fptags[new_fpstt] = 0; /* validate stack entry */
-}
-
-void helper_fldl_ST0(uint64_t val)
-{
- int new_fpstt;
- union {
- float64 f;
- uint64_t i;
- } u;
- new_fpstt = (env->fpstt - 1) & 7;
- u.i = val;
- env->fpregs[new_fpstt].d = float64_to_floatx(u.f, &env->fp_status);
- env->fpstt = new_fpstt;
- env->fptags[new_fpstt] = 0; /* validate stack entry */
-}
-
-void helper_fildl_ST0(int32_t val)
-{
- int new_fpstt;
- new_fpstt = (env->fpstt - 1) & 7;
- env->fpregs[new_fpstt].d = int32_to_floatx(val, &env->fp_status);
- env->fpstt = new_fpstt;
- env->fptags[new_fpstt] = 0; /* validate stack entry */
-}
-
-void helper_fildll_ST0(int64_t val)
-{
- int new_fpstt;
- new_fpstt = (env->fpstt - 1) & 7;
- env->fpregs[new_fpstt].d = int64_to_floatx(val, &env->fp_status);
- env->fpstt = new_fpstt;
- env->fptags[new_fpstt] = 0; /* validate stack entry */
-}
-
-uint32_t helper_fsts_ST0(void)
-{
- union {
- float32 f;
- uint32_t i;
- } u;
- u.f = floatx_to_float32(ST0, &env->fp_status);
- return u.i;
-}
-
-uint64_t helper_fstl_ST0(void)
-{
- union {
- float64 f;
- uint64_t i;
- } u;
- u.f = floatx_to_float64(ST0, &env->fp_status);
- return u.i;
-}
-
-int32_t helper_fist_ST0(void)
-{
- int32_t val;
- val = floatx_to_int32(ST0, &env->fp_status);
- if (val != (int16_t)val)
- val = -32768;
- return val;
-}
-
-int32_t helper_fistl_ST0(void)
-{
- int32_t val;
- val = floatx_to_int32(ST0, &env->fp_status);
- return val;
-}
-
-int64_t helper_fistll_ST0(void)
-{
- int64_t val;
- val = floatx_to_int64(ST0, &env->fp_status);
- return val;
-}
-
-int32_t helper_fistt_ST0(void)
-{
- int32_t val;
- val = floatx_to_int32_round_to_zero(ST0, &env->fp_status);
- if (val != (int16_t)val)
- val = -32768;
- return val;
-}
-
-int32_t helper_fisttl_ST0(void)
-{
- int32_t val;
- val = floatx_to_int32_round_to_zero(ST0, &env->fp_status);
- return val;
-}
-
-int64_t helper_fisttll_ST0(void)
-{
- int64_t val;
- val = floatx_to_int64_round_to_zero(ST0, &env->fp_status);
- return val;
-}
-
-void helper_fldt_ST0(target_ulong ptr)
-{
- int new_fpstt;
- new_fpstt = (env->fpstt - 1) & 7;
- env->fpregs[new_fpstt].d = helper_fldt(ptr);
- env->fpstt = new_fpstt;
- env->fptags[new_fpstt] = 0; /* validate stack entry */
-}
-
-void helper_fstt_ST0(target_ulong ptr)
-{
- helper_fstt(ST0, ptr);
-}
-
-void helper_fpush(void)
-{
- fpush();
-}
-
-void helper_fpop(void)
-{
- fpop();
-}
-
-void helper_fdecstp(void)
-{
- env->fpstt = (env->fpstt - 1) & 7;
- env->fpus &= (~0x4700);
-}
-
-void helper_fincstp(void)
-{
- env->fpstt = (env->fpstt + 1) & 7;
- env->fpus &= (~0x4700);
-}
-
-/* FPU move */
-
-void helper_ffree_STN(int st_index)
-{
- env->fptags[(env->fpstt + st_index) & 7] = 1;
-}
-
-void helper_fmov_ST0_FT0(void)
-{
- ST0 = FT0;
-}
-
-void helper_fmov_FT0_STN(int st_index)
-{
- FT0 = ST(st_index);
-}
-
-void helper_fmov_ST0_STN(int st_index)
-{
- ST0 = ST(st_index);
-}
-
-void helper_fmov_STN_ST0(int st_index)
-{
- ST(st_index) = ST0;
-}
-
-void helper_fxchg_ST0_STN(int st_index)
-{
- CPU86_LDouble tmp;
- tmp = ST(st_index);
- ST(st_index) = ST0;
- ST0 = tmp;
-}
-
-/* FPU operations */
-
-static const int fcom_ccval[4] = {0x0100, 0x4000, 0x0000, 0x4500};
-
-void helper_fcom_ST0_FT0(void)
-{
- int ret;
-
- ret = floatx_compare(ST0, FT0, &env->fp_status);
- env->fpus = (env->fpus & ~0x4500) | fcom_ccval[ret + 1];
- FORCE_RET();
-}
-
-void helper_fucom_ST0_FT0(void)
-{
- int ret;
-
- ret = floatx_compare_quiet(ST0, FT0, &env->fp_status);
- env->fpus = (env->fpus & ~0x4500) | fcom_ccval[ret+ 1];
- FORCE_RET();
-}
-
-static const int fcomi_ccval[4] = {CC_C, CC_Z, 0, CC_Z | CC_P | CC_C};
-
-void helper_fcomi_ST0_FT0(void)
-{
- int eflags;
- int ret;
-
- ret = floatx_compare(ST0, FT0, &env->fp_status);
- eflags = cc_table[CC_OP].compute_all();
- eflags = (eflags & ~(CC_Z | CC_P | CC_C)) | fcomi_ccval[ret + 1];
- CC_SRC = eflags;
- FORCE_RET();
-}
-
-void helper_fucomi_ST0_FT0(void)
-{
- int eflags;
- int ret;
-
- ret = floatx_compare_quiet(ST0, FT0, &env->fp_status);
- eflags = cc_table[CC_OP].compute_all();
- eflags = (eflags & ~(CC_Z | CC_P | CC_C)) | fcomi_ccval[ret + 1];
- CC_SRC = eflags;
- FORCE_RET();
-}
-
-void helper_fadd_ST0_FT0(void)
-{
- ST0 += FT0;
-}
-
-void helper_fmul_ST0_FT0(void)
-{
- ST0 *= FT0;
-}
-
-void helper_fsub_ST0_FT0(void)
-{
- ST0 -= FT0;
-}
-
-void helper_fsubr_ST0_FT0(void)
-{
- ST0 = FT0 - ST0;
-}
-
-void helper_fdiv_ST0_FT0(void)
-{
- ST0 = helper_fdiv(ST0, FT0);
-}
-
-void helper_fdivr_ST0_FT0(void)
-{
- ST0 = helper_fdiv(FT0, ST0);
-}
-
-/* fp operations between STN and ST0 */
-
-void helper_fadd_STN_ST0(int st_index)
-{
- ST(st_index) += ST0;
-}
-
-void helper_fmul_STN_ST0(int st_index)
-{
- ST(st_index) *= ST0;
-}
-
-void helper_fsub_STN_ST0(int st_index)
-{
- ST(st_index) -= ST0;
-}
-
-void helper_fsubr_STN_ST0(int st_index)
-{
- CPU86_LDouble *p;
- p = &ST(st_index);
- *p = ST0 - *p;
-}
-
-void helper_fdiv_STN_ST0(int st_index)
-{
- CPU86_LDouble *p;
- p = &ST(st_index);
- *p = helper_fdiv(*p, ST0);
-}
-
-void helper_fdivr_STN_ST0(int st_index)
-{
- CPU86_LDouble *p;
- p = &ST(st_index);
- *p = helper_fdiv(ST0, *p);
-}
-
-/* misc FPU operations */
-void helper_fchs_ST0(void)
-{
- ST0 = floatx_chs(ST0);
-}
-
-void helper_fabs_ST0(void)
-{
- ST0 = floatx_abs(ST0);
-}
-
-void helper_fld1_ST0(void)
-{
- ST0 = f15rk[1];
-}
-
-void helper_fldl2t_ST0(void)
-{
- ST0 = f15rk[6];
-}
-
-void helper_fldl2e_ST0(void)
-{
- ST0 = f15rk[5];
-}
-
-void helper_fldpi_ST0(void)
-{
- ST0 = f15rk[2];
-}
-
-void helper_fldlg2_ST0(void)
-{
- ST0 = f15rk[3];
-}
-
-void helper_fldln2_ST0(void)
-{
- ST0 = f15rk[4];
-}
-
-void helper_fldz_ST0(void)
-{
- ST0 = f15rk[0];
-}
-
-void helper_fldz_FT0(void)
-{
- FT0 = f15rk[0];
-}
-
-uint32_t helper_fnstsw(void)
-{
- return (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
-}
-
-uint32_t helper_fnstcw(void)
-{
- return env->fpuc;
-}
-
-static void update_fp_status(void)
-{
- int rnd_type;
-
- /* set rounding mode */
- switch(env->fpuc & RC_MASK) {
- default:
- case RC_NEAR:
- rnd_type = float_round_nearest_even;
- break;
- case RC_DOWN:
- rnd_type = float_round_down;
- break;
- case RC_UP:
- rnd_type = float_round_up;
- break;
- case RC_CHOP:
- rnd_type = float_round_to_zero;
- break;
- }
- set_float_rounding_mode(rnd_type, &env->fp_status);
-#ifdef FLOATX80
- switch((env->fpuc >> 8) & 3) {
- case 0:
- rnd_type = 32;
- break;
- case 2:
- rnd_type = 64;
- break;
- case 3:
- default:
- rnd_type = 80;
- break;
- }
- set_floatx80_rounding_precision(rnd_type, &env->fp_status);
-#endif
-}
-
-void helper_fldcw(uint32_t val)
-{
- env->fpuc = val;
- update_fp_status();
-}
-
-void helper_fclex(void)
-{
- env->fpus &= 0x7f00;
-}
-
-void helper_fwait(void)
-{
- if (env->fpus & FPUS_SE)
- fpu_raise_exception();
- FORCE_RET();
-}
-
-void helper_fninit(void)
-{
- env->fpus = 0;
- env->fpstt = 0;
- env->fpuc = 0x37f;
- env->fptags[0] = 1;
- env->fptags[1] = 1;
- env->fptags[2] = 1;
- env->fptags[3] = 1;
- env->fptags[4] = 1;
- env->fptags[5] = 1;
- env->fptags[6] = 1;
- env->fptags[7] = 1;
-}
-
-/* BCD ops */
-
-void helper_fbld_ST0(target_ulong ptr)
-{
- CPU86_LDouble tmp;
- uint64_t val;
- unsigned int v;
- int i;
-
- val = 0;
- for(i = 8; i >= 0; i--) {
- v = ldub(ptr + i);
- val = (val * 100) + ((v >> 4) * 10) + (v & 0xf);
- }
- tmp = val;
- if (ldub(ptr + 9) & 0x80)
- tmp = -tmp;
- fpush();
- ST0 = tmp;
-}
-
-void helper_fbst_ST0(target_ulong ptr)
-{
- int v;
- target_ulong mem_ref, mem_end;
- int64_t val;
-
- val = floatx_to_int64(ST0, &env->fp_status);
- mem_ref = ptr;
- mem_end = mem_ref + 9;
- if (val < 0) {
- stb(mem_end, 0x80);
- val = -val;
- } else {
- stb(mem_end, 0x00);
- }
- while (mem_ref < mem_end) {
- if (val == 0)
- break;
- v = val % 100;
- val = val / 100;
- v = ((v / 10) << 4) | (v % 10);
- stb(mem_ref++, v);
- }
- while (mem_ref < mem_end) {
- stb(mem_ref++, 0);
- }
-}
-
-void helper_f2xm1(void)
-{
- ST0 = pow(2.0,ST0) - 1.0;
-}
-
-void helper_fyl2x(void)
-{
- CPU86_LDouble fptemp;
-
- fptemp = ST0;
- if (fptemp>0.0){
- fptemp = log(fptemp)/log(2.0); /* log2(ST) */
- ST1 *= fptemp;
- fpop();
- } else {
- env->fpus &= (~0x4700);
- env->fpus |= 0x400;
- }
-}
-
-void helper_fptan(void)
-{
- CPU86_LDouble fptemp;
-
- fptemp = ST0;
- if((fptemp > MAXTAN)||(fptemp < -MAXTAN)) {
- env->fpus |= 0x400;
- } else {
- ST0 = tan(fptemp);
- fpush();
- ST0 = 1.0;
- env->fpus &= (~0x400); /* C2 <-- 0 */
- /* the above code is for |arg| < 2**52 only */
- }
-}
-
-void helper_fpatan(void)
-{
- CPU86_LDouble fptemp, fpsrcop;
-
- fpsrcop = ST1;
- fptemp = ST0;
- ST1 = atan2(fpsrcop,fptemp);
- fpop();
-}
-
-void helper_fxtract(void)
-{
- CPU86_LDoubleU temp;
- unsigned int expdif;
-
- temp.d = ST0;
- expdif = EXPD(temp) - EXPBIAS;
- /*DP exponent bias*/
- ST0 = expdif;
- fpush();
- BIASEXPONENT(temp);
- ST0 = temp.d;
-}
-
-void helper_fprem1(void)
-{
- CPU86_LDouble dblq, fpsrcop, fptemp;
- CPU86_LDoubleU fpsrcop1, fptemp1;
- int expdif;
- signed long long int q;
-
- if (isinf(ST0) || isnan(ST0) || isnan(ST1) || (ST1 == 0.0)) {
- ST0 = 0.0 / 0.0; /* NaN */
- env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
- return;
- }
-
- fpsrcop = ST0;
- fptemp = ST1;
- fpsrcop1.d = fpsrcop;
- fptemp1.d = fptemp;
- expdif = EXPD(fpsrcop1) - EXPD(fptemp1);
-
- if (expdif < 0) {
- /* optimisation? taken from the AMD docs */
- env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
- /* ST0 is unchanged */
- return;
- }
-
- if (expdif < 53) {
- dblq = fpsrcop / fptemp;
- /* round dblq towards nearest integer */
- dblq = rint(dblq);
- ST0 = fpsrcop - fptemp * dblq;
-
- /* convert dblq to q by truncating towards zero */
- if (dblq < 0.0)
- q = (signed long long int)(-dblq);
- else
- q = (signed long long int)dblq;
-
- env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
- /* (C0,C3,C1) <-- (q2,q1,q0) */
- env->fpus |= (q & 0x4) << (8 - 2); /* (C0) <-- q2 */
- env->fpus |= (q & 0x2) << (14 - 1); /* (C3) <-- q1 */
- env->fpus |= (q & 0x1) << (9 - 0); /* (C1) <-- q0 */
- } else {
- env->fpus |= 0x400; /* C2 <-- 1 */
- fptemp = pow(2.0, expdif - 50);
- fpsrcop = (ST0 / ST1) / fptemp;
- /* fpsrcop = integer obtained by chopping */
- fpsrcop = (fpsrcop < 0.0) ?
- -(floor(fabs(fpsrcop))) : floor(fpsrcop);
- ST0 -= (ST1 * fpsrcop * fptemp);
- }
-}
-
-void helper_fprem(void)
-{
- CPU86_LDouble dblq, fpsrcop, fptemp;
- CPU86_LDoubleU fpsrcop1, fptemp1;
- int expdif;
- signed long long int q;
-
- if (isinf(ST0) || isnan(ST0) || isnan(ST1) || (ST1 == 0.0)) {
- ST0 = 0.0 / 0.0; /* NaN */
- env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
- return;
- }
-
- fpsrcop = (CPU86_LDouble)ST0;
- fptemp = (CPU86_LDouble)ST1;
- fpsrcop1.d = fpsrcop;
- fptemp1.d = fptemp;
- expdif = EXPD(fpsrcop1) - EXPD(fptemp1);
-
- if (expdif < 0) {
- /* optimisation? taken from the AMD docs */
- env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
- /* ST0 is unchanged */
- return;
- }
-
- if ( expdif < 53 ) {
- dblq = fpsrcop/*ST0*/ / fptemp/*ST1*/;
- /* round dblq towards zero */
- dblq = (dblq < 0.0) ? ceil(dblq) : floor(dblq);
- ST0 = fpsrcop/*ST0*/ - fptemp * dblq;
-
- /* convert dblq to q by truncating towards zero */
- if (dblq < 0.0)
- q = (signed long long int)(-dblq);
- else
- q = (signed long long int)dblq;
-
- env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
- /* (C0,C3,C1) <-- (q2,q1,q0) */
- env->fpus |= (q & 0x4) << (8 - 2); /* (C0) <-- q2 */
- env->fpus |= (q & 0x2) << (14 - 1); /* (C3) <-- q1 */
- env->fpus |= (q & 0x1) << (9 - 0); /* (C1) <-- q0 */
- } else {
- int N = 32 + (expdif % 32); /* as per AMD docs */
- env->fpus |= 0x400; /* C2 <-- 1 */
- fptemp = pow(2.0, (double)(expdif - N));
- fpsrcop = (ST0 / ST1) / fptemp;
- /* fpsrcop = integer obtained by chopping */
- fpsrcop = (fpsrcop < 0.0) ?
- -(floor(fabs(fpsrcop))) : floor(fpsrcop);
- ST0 -= (ST1 * fpsrcop * fptemp);
- }
-}
-
-void helper_fyl2xp1(void)
-{
- CPU86_LDouble fptemp;
-
- fptemp = ST0;
- if ((fptemp+1.0)>0.0) {
- fptemp = log(fptemp+1.0) / log(2.0); /* log2(ST+1.0) */
- ST1 *= fptemp;
- fpop();
- } else {
- env->fpus &= (~0x4700);
- env->fpus |= 0x400;
- }
-}
-
-void helper_fsqrt(void)
-{
- CPU86_LDouble fptemp;
-
- fptemp = ST0;
- if (fptemp<0.0) {
- env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
- env->fpus |= 0x400;
- }
- ST0 = sqrt(fptemp);
-}
-
-void helper_fsincos(void)
-{
- CPU86_LDouble fptemp;
-
- fptemp = ST0;
- if ((fptemp > MAXTAN)||(fptemp < -MAXTAN)) {
- env->fpus |= 0x400;
- } else {
- ST0 = sin(fptemp);
- fpush();
- ST0 = cos(fptemp);
- env->fpus &= (~0x400); /* C2 <-- 0 */
- /* the above code is for |arg| < 2**63 only */
- }
-}
-
-void helper_frndint(void)
-{
- ST0 = floatx_round_to_int(ST0, &env->fp_status);
-}
-
-void helper_fscale(void)
-{
- ST0 = ldexp (ST0, (int)(ST1));
-}
-
-void helper_fsin(void)
-{
- CPU86_LDouble fptemp;
-
- fptemp = ST0;
- if ((fptemp > MAXTAN)||(fptemp < -MAXTAN)) {
- env->fpus |= 0x400;
- } else {
- ST0 = sin(fptemp);
- env->fpus &= (~0x400); /* C2 <-- 0 */
- /* the above code is for |arg| < 2**53 only */
- }
-}
-
-void helper_fcos(void)
-{
- CPU86_LDouble fptemp;
-
- fptemp = ST0;
- if((fptemp > MAXTAN)||(fptemp < -MAXTAN)) {
- env->fpus |= 0x400;
- } else {
- ST0 = cos(fptemp);
- env->fpus &= (~0x400); /* C2 <-- 0 */
- /* the above code is for |arg5 < 2**63 only */
- }
-}
-
-void helper_fxam_ST0(void)
-{
- CPU86_LDoubleU temp;
- int expdif;
-
- temp.d = ST0;
-
- env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
- if (SIGND(temp))
- env->fpus |= 0x200; /* C1 <-- 1 */
-
- /* XXX: test fptags too */
- expdif = EXPD(temp);
- if (expdif == MAXEXPD) {
-#ifdef USE_X86LDOUBLE
- if (MANTD(temp) == 0x8000000000000000ULL)
-#else
- if (MANTD(temp) == 0)
-#endif
- env->fpus |= 0x500 /*Infinity*/;
- else
- env->fpus |= 0x100 /*NaN*/;
- } else if (expdif == 0) {
- if (MANTD(temp) == 0)
- env->fpus |= 0x4000 /*Zero*/;
- else
- env->fpus |= 0x4400 /*Denormal*/;
- } else {
- env->fpus |= 0x400;
- }
-}
-
-void helper_fstenv(target_ulong ptr, int data32)
-{
- int fpus, fptag, exp, i;
- uint64_t mant;
- CPU86_LDoubleU tmp;
-
- fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
- fptag = 0;
- for (i=7; i>=0; i--) {
- fptag <<= 2;
- if (env->fptags[i]) {
- fptag |= 3;
- } else {
- tmp.d = env->fpregs[i].d;
- exp = EXPD(tmp);
- mant = MANTD(tmp);
- if (exp == 0 && mant == 0) {
- /* zero */
- fptag |= 1;
- } else if (exp == 0 || exp == MAXEXPD
-#ifdef USE_X86LDOUBLE
- || (mant & (1LL << 63)) == 0
-#endif
- ) {
- /* NaNs, infinity, denormal */
- fptag |= 2;
- }
- }
- }
- if (data32) {
- /* 32 bit */
- stl(ptr, env->fpuc);
- stl(ptr + 4, fpus);
- stl(ptr + 8, fptag);
- stl(ptr + 12, 0); /* fpip */
- stl(ptr + 16, 0); /* fpcs */
- stl(ptr + 20, 0); /* fpoo */
- stl(ptr + 24, 0); /* fpos */
- } else {
- /* 16 bit */
- stw(ptr, env->fpuc);
- stw(ptr + 2, fpus);
- stw(ptr + 4, fptag);
- stw(ptr + 6, 0);
- stw(ptr + 8, 0);
- stw(ptr + 10, 0);
- stw(ptr + 12, 0);
- }
-}
-
-void helper_fldenv(target_ulong ptr, int data32)
-{
- int i, fpus, fptag;
-
- if (data32) {
- env->fpuc = lduw(ptr);
- fpus = lduw(ptr + 4);
- fptag = lduw(ptr + 8);
- }
- else {
- env->fpuc = lduw(ptr);
- fpus = lduw(ptr + 2);
- fptag = lduw(ptr + 4);
- }
- env->fpstt = (fpus >> 11) & 7;
- env->fpus = fpus & ~0x3800;
- for(i = 0;i < 8; i++) {
- env->fptags[i] = ((fptag & 3) == 3);
- fptag >>= 2;
- }
-}
-
-void helper_fsave(target_ulong ptr, int data32)
-{
- CPU86_LDouble tmp;
- int i;
-
- helper_fstenv(ptr, data32);
-
- ptr += (14 << data32);
- for(i = 0;i < 8; i++) {
- tmp = ST(i);
- helper_fstt(tmp, ptr);
- ptr += 10;
- }
-
- /* fninit */
- env->fpus = 0;
- env->fpstt = 0;
- env->fpuc = 0x37f;
- env->fptags[0] = 1;
- env->fptags[1] = 1;
- env->fptags[2] = 1;
- env->fptags[3] = 1;
- env->fptags[4] = 1;
- env->fptags[5] = 1;
- env->fptags[6] = 1;
- env->fptags[7] = 1;
-}
-
-void helper_frstor(target_ulong ptr, int data32)
-{
- CPU86_LDouble tmp;
- int i;
-
- helper_fldenv(ptr, data32);
- ptr += (14 << data32);
-
- for(i = 0;i < 8; i++) {
- tmp = helper_fldt(ptr);
- ST(i) = tmp;
- ptr += 10;
- }
-}
-
-void helper_fxsave(target_ulong ptr, int data64)
-{
- int fpus, fptag, i, nb_xmm_regs;
- CPU86_LDouble tmp;
- target_ulong addr;
-
- fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
- fptag = 0;
- for(i = 0; i < 8; i++) {
- fptag |= (env->fptags[i] << i);
- }
- stw(ptr, env->fpuc);
- stw(ptr + 2, fpus);
- stw(ptr + 4, fptag ^ 0xff);
-#ifdef TARGET_X86_64
- if (data64) {
- stq(ptr + 0x08, 0); /* rip */
- stq(ptr + 0x10, 0); /* rdp */
- } else
-#endif
- {
- stl(ptr + 0x08, 0); /* eip */
- stl(ptr + 0x0c, 0); /* sel */
- stl(ptr + 0x10, 0); /* dp */
- stl(ptr + 0x14, 0); /* sel */
- }
-
- addr = ptr + 0x20;
- for(i = 0;i < 8; i++) {
- tmp = ST(i);
- helper_fstt(tmp, addr);
- addr += 16;
- }
-
- if (env->cr[4] & CR4_OSFXSR_MASK) {
- /* XXX: finish it */
- stl(ptr + 0x18, env->mxcsr); /* mxcsr */
- stl(ptr + 0x1c, 0x0000ffff); /* mxcsr_mask */
- if (env->hflags & HF_CS64_MASK)
- nb_xmm_regs = 16;
- else
- nb_xmm_regs = 8;
- addr = ptr + 0xa0;
- for(i = 0; i < nb_xmm_regs; i++) {
- stq(addr, env->xmm_regs[i].XMM_Q(0));
- stq(addr + 8, env->xmm_regs[i].XMM_Q(1));
- addr += 16;
- }
- }
-}
-
-void helper_fxrstor(target_ulong ptr, int data64)
-{
- int i, fpus, fptag, nb_xmm_regs;
- CPU86_LDouble tmp;
- target_ulong addr;
-
- env->fpuc = lduw(ptr);
- fpus = lduw(ptr + 2);
- fptag = lduw(ptr + 4);
- env->fpstt = (fpus >> 11) & 7;
- env->fpus = fpus & ~0x3800;
- fptag ^= 0xff;
- for(i = 0;i < 8; i++) {
- env->fptags[i] = ((fptag >> i) & 1);
- }
-
- addr = ptr + 0x20;
- for(i = 0;i < 8; i++) {
- tmp = helper_fldt(addr);
- ST(i) = tmp;
- addr += 16;
- }
-
- if (env->cr[4] & CR4_OSFXSR_MASK) {
- /* XXX: finish it */
- env->mxcsr = ldl(ptr + 0x18);
- //ldl(ptr + 0x1c);
- if (env->hflags & HF_CS64_MASK)
- nb_xmm_regs = 16;
- else
- nb_xmm_regs = 8;
- addr = ptr + 0xa0;
- for(i = 0; i < nb_xmm_regs; i++) {
- env->xmm_regs[i].XMM_Q(0) = ldq(addr);
- env->xmm_regs[i].XMM_Q(1) = ldq(addr + 8);
- addr += 16;
- }
- }
-}
-
-#ifndef USE_X86LDOUBLE
-
-void cpu_get_fp80(uint64_t *pmant, uint16_t *pexp, CPU86_LDouble f)
-{
- CPU86_LDoubleU temp;
- int e;
-
- temp.d = f;
- /* mantissa */
- *pmant = (MANTD(temp) << 11) | (1LL << 63);
- /* exponent + sign */
- e = EXPD(temp) - EXPBIAS + 16383;
- e |= SIGND(temp) >> 16;
- *pexp = e;
-}
-
-CPU86_LDouble cpu_set_fp80(uint64_t mant, uint16_t upper)
-{
- CPU86_LDoubleU temp;
- int e;
- uint64_t ll;
-
- /* XXX: handle overflow ? */
- e = (upper & 0x7fff) - 16383 + EXPBIAS; /* exponent */
- e |= (upper >> 4) & 0x800; /* sign */
- ll = (mant >> 11) & ((1LL << 52) - 1);
-#ifdef __arm__
- temp.l.upper = (e << 20) | (ll >> 32);
- temp.l.lower = ll;
-#else
- temp.ll = ll | ((uint64_t)e << 52);
-#endif
- return temp.d;
-}
-
-#else
-
-void cpu_get_fp80(uint64_t *pmant, uint16_t *pexp, CPU86_LDouble f)
-{
- CPU86_LDoubleU temp;
-
- temp.d = f;
- *pmant = temp.l.lower;
- *pexp = temp.l.upper;
-}
-
-CPU86_LDouble cpu_set_fp80(uint64_t mant, uint16_t upper)
-{
- CPU86_LDoubleU temp;
-
- temp.l.upper = upper;
- temp.l.lower = mant;
- return temp.d;
-}
-#endif
-
-#ifdef TARGET_X86_64
-
-//#define DEBUG_MULDIV
-
-static void add128(uint64_t *plow, uint64_t *phigh, uint64_t a, uint64_t b)
-{
- *plow += a;
- /* carry test */
- if (*plow < a)
- (*phigh)++;
- *phigh += b;
-}
-
-static void neg128(uint64_t *plow, uint64_t *phigh)
-{
- *plow = ~ *plow;
- *phigh = ~ *phigh;
- add128(plow, phigh, 1, 0);
-}
-
-/* return TRUE if overflow */
-static int div64(uint64_t *plow, uint64_t *phigh, uint64_t b)
-{
- uint64_t q, r, a1, a0;
- int i, qb, ab;
-
- a0 = *plow;
- a1 = *phigh;
- if (a1 == 0) {
- q = a0 / b;
- r = a0 % b;
- *plow = q;
- *phigh = r;
- } else {
- if (a1 >= b)
- return 1;
- /* XXX: use a better algorithm */
- for(i = 0; i < 64; i++) {
- ab = a1 >> 63;
- a1 = (a1 << 1) | (a0 >> 63);
- if (ab || a1 >= b) {
- a1 -= b;
- qb = 1;
- } else {
- qb = 0;
- }
- a0 = (a0 << 1) | qb;
- }
-#if defined(DEBUG_MULDIV)
- printf("div: 0x%016" PRIx64 "%016" PRIx64 " / 0x%016" PRIx64 ": q=0x%016" PRIx64 " r=0x%016" PRIx64 "\n",
- *phigh, *plow, b, a0, a1);
-#endif
- *plow = a0;
- *phigh = a1;
- }
- return 0;
-}
-
-/* return TRUE if overflow */
-static int idiv64(uint64_t *plow, uint64_t *phigh, int64_t b)
-{
- int sa, sb;
- sa = ((int64_t)*phigh < 0);
- if (sa)
- neg128(plow, phigh);
- sb = (b < 0);
- if (sb)
- b = -b;
- if (div64(plow, phigh, b) != 0)
- return 1;
- if (sa ^ sb) {
- if (*plow > (1ULL << 63))
- return 1;
- *plow = - *plow;
- } else {
- if (*plow >= (1ULL << 63))
- return 1;
- }
- if (sa)
- *phigh = - *phigh;
- return 0;
-}
-
-void helper_mulq_EAX_T0(target_ulong t0)
-{
- uint64_t r0, r1;
-
- mulu64(&r0, &r1, EAX, t0);
- EAX = r0;
- EDX = r1;
- CC_DST = r0;
- CC_SRC = r1;
-}
-
-void helper_imulq_EAX_T0(target_ulong t0)
-{
- uint64_t r0, r1;
-
- muls64(&r0, &r1, EAX, t0);
- EAX = r0;
- EDX = r1;
- CC_DST = r0;
- CC_SRC = ((int64_t)r1 != ((int64_t)r0 >> 63));
-}
-
-target_ulong helper_imulq_T0_T1(target_ulong t0, target_ulong t1)
-{
- uint64_t r0, r1;
-
- muls64(&r0, &r1, t0, t1);
- CC_DST = r0;
- CC_SRC = ((int64_t)r1 != ((int64_t)r0 >> 63));
- return r0;
-}
-
-void helper_divq_EAX(target_ulong t0)
-{
- uint64_t r0, r1;
- if (t0 == 0) {
- raise_exception(EXCP00_DIVZ);
- }
- r0 = EAX;
- r1 = EDX;
- if (div64(&r0, &r1, t0))
- raise_exception(EXCP00_DIVZ);
- EAX = r0;
- EDX = r1;
-}
-
-void helper_idivq_EAX(target_ulong t0)
-{
- uint64_t r0, r1;
- if (t0 == 0) {
- raise_exception(EXCP00_DIVZ);
- }
- r0 = EAX;
- r1 = EDX;
- if (idiv64(&r0, &r1, t0))
- raise_exception(EXCP00_DIVZ);
- EAX = r0;
- EDX = r1;
-}
-#endif
-
-void helper_hlt(void)
-{
- env->hflags &= ~HF_INHIBIT_IRQ_MASK; /* needed if sti is just before */
- env->hflags |= HF_HALTED_MASK;
- env->exception_index = EXCP_HLT;
- cpu_loop_exit();
-}
-
-void helper_monitor(target_ulong ptr)
-{
- if ((uint32_t)ECX != 0)
- raise_exception(EXCP0D_GPF);
- /* XXX: store address ? */
-}
-
-void helper_mwait(void)
-{
- if ((uint32_t)ECX != 0)
- raise_exception(EXCP0D_GPF);
- /* XXX: not complete but not completely erroneous */
- if (env->cpu_index != 0 || env->next_cpu != NULL) {
- /* more than one CPU: do not sleep because another CPU may
- wake this one */
- } else {
- helper_hlt();
- }
-}
-
-void helper_debug(void)
-{
- env->exception_index = EXCP_DEBUG;
- cpu_loop_exit();
-}
-
-void helper_raise_interrupt(int intno, int next_eip_addend)
-{
- raise_interrupt(intno, 1, 0, next_eip_addend);
-}
-
-void helper_raise_exception(int exception_index)
-{
- raise_exception(exception_index);
-}
-
-void helper_cli(void)
-{
- env->eflags &= ~IF_MASK;
-}
-
-void helper_sti(void)
-{
- env->eflags |= IF_MASK;
-}
-
-#if 0
-/* vm86plus instructions */
-void helper_cli_vm(void)
-{
- env->eflags &= ~VIF_MASK;
-}
-
-void helper_sti_vm(void)
-{
- env->eflags |= VIF_MASK;
- if (env->eflags & VIP_MASK) {
- raise_exception(EXCP0D_GPF);
- }
-}
-#endif
-
-void helper_set_inhibit_irq(void)
-{
- env->hflags |= HF_INHIBIT_IRQ_MASK;
-}
-
-void helper_reset_inhibit_irq(void)
-{
- env->hflags &= ~HF_INHIBIT_IRQ_MASK;
-}
-
-void helper_boundw(target_ulong a0, int v)
-{
- int low, high;
- low = ldsw(a0);
- high = ldsw(a0 + 2);
- v = (int16_t)v;
- if (v < low || v > high) {
- raise_exception(EXCP05_BOUND);
- }
- FORCE_RET();
-}
-
-void helper_boundl(target_ulong a0, int v)
-{
- int low, high;
- low = ldl(a0);
- high = ldl(a0 + 4);
- if (v < low || v > high) {
- raise_exception(EXCP05_BOUND);
- }
- FORCE_RET();
-}
-
-static float approx_rsqrt(float a)
-{
- return 1.0 / sqrt(a);
-}
-
-static float approx_rcp(float a)
-{
- return 1.0 / a;
-}
-
-#if !defined(CONFIG_USER_ONLY)
-
-#define MMUSUFFIX _mmu
-
-#define SHIFT 0
-#include "softmmu_template.h"
-
-#define SHIFT 1
-#include "softmmu_template.h"
-
-#define SHIFT 2
-#include "softmmu_template.h"
-
-#define SHIFT 3
-#include "softmmu_template.h"
-
-#endif
-
-/* try to fill the TLB and return an exception if error. If retaddr is
- NULL, it means that the function was called in C code (i.e. not
- from generated code or from helper.c) */
-/* XXX: fix it to restore all registers */
-void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr)
-{
- TranslationBlock *tb;
- int ret;
- unsigned long pc;
- CPUX86State *saved_env;
-
- /* XXX: hack to restore env in all cases, even if not called from
- generated code */
- saved_env = env;
- env = cpu_single_env;
-
- ret = cpu_x86_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
- if (ret) {
- if (retaddr) {
- /* now we have a real cpu fault */
- pc = (unsigned long)retaddr;
- tb = tb_find_pc(pc);
- if (tb) {
- /* the PC is inside the translated code. It means that we have
- a virtual CPU fault */
- cpu_restore_state(tb, env, pc, NULL);
- }
- }
- if (retaddr)
- raise_exception_err(env->exception_index, env->error_code);
- else
- raise_exception_err_norestore(env->exception_index, env->error_code);
- }
- env = saved_env;
-}
-
-
-/* Secure Virtual Machine helpers */
-
-void helper_stgi(void)
-{
- env->hflags |= HF_GIF_MASK;
-}
-
-void helper_clgi(void)
-{
- env->hflags &= ~HF_GIF_MASK;
-}
-
-#if defined(CONFIG_USER_ONLY)
-
-void helper_vmrun(void)
-{
-}
-void helper_vmmcall(void)
-{
-}
-void helper_vmload(void)
-{
-}
-void helper_vmsave(void)
-{
-}
-void helper_skinit(void)
-{
-}
-void helper_invlpga(void)
-{
-}
-void helper_vmexit(uint32_t exit_code, uint64_t exit_info_1)
-{
-}
-void helper_svm_check_intercept_param(uint32_t type, uint64_t param)
-{
-}
-
-void helper_svm_check_io(uint32_t port, uint32_t param,
- uint32_t next_eip_addend)
-{
-}
-#else
-
-static inline uint32_t
-vmcb2cpu_attrib(uint16_t vmcb_attrib, uint32_t vmcb_base, uint32_t vmcb_limit)
-{
- return ((vmcb_attrib & 0x00ff) << 8) /* Type, S, DPL, P */
- | ((vmcb_attrib & 0x0f00) << 12) /* AVL, L, DB, G */
- | ((vmcb_base >> 16) & 0xff) /* Base 23-16 */
- | (vmcb_base & 0xff000000) /* Base 31-24 */
- | (vmcb_limit & 0xf0000); /* Limit 19-16 */
-}
-
-static inline uint16_t cpu2vmcb_attrib(uint32_t cpu_attrib)
-{
- return ((cpu_attrib >> 8) & 0xff) /* Type, S, DPL, P */
- | ((cpu_attrib & 0xf00000) >> 12); /* AVL, L, DB, G */
-}
-
-void helper_vmrun(void)
-{
- target_ulong addr;
- uint32_t event_inj;
- uint32_t int_ctl;
-
- addr = EAX;
- if (loglevel & CPU_LOG_TB_IN_ASM)
- fprintf(logfile,"vmrun! " TARGET_FMT_lx "\n", addr);
-
- env->vm_vmcb = addr;
-
- /* save the current CPU state in the hsave page */
- stq_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.base), env->gdt.base);
- stl_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.limit), env->gdt.limit);
-
- stq_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.base), env->idt.base);
- stl_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.limit), env->idt.limit);
-
- stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr0), env->cr[0]);
- stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr2), env->cr[2]);
- stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr3), env->cr[3]);
- stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr4), env->cr[4]);
- stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr8), env->cr[8]);
- stq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr6), env->dr[6]);
- stq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr7), env->dr[7]);
-
- stq_phys(env->vm_hsave + offsetof(struct vmcb, save.efer), env->efer);
- stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rflags), compute_eflags());
-
- SVM_SAVE_SEG(env->vm_hsave, segs[R_ES], es);
- SVM_SAVE_SEG(env->vm_hsave, segs[R_CS], cs);
- SVM_SAVE_SEG(env->vm_hsave, segs[R_SS], ss);
- SVM_SAVE_SEG(env->vm_hsave, segs[R_DS], ds);
-
- stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip), EIP);
- stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rsp), ESP);
- stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rax), EAX);
-
- /* load the interception bitmaps so we do not need to access the
- vmcb in svm mode */
- /* We shift all the intercept bits so we can OR them with the TB
- flags later on */
- env->intercept = (ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept)) << INTERCEPT_INTR) | INTERCEPT_SVM_MASK;
- env->intercept_cr_read = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_cr_read));
- env->intercept_cr_write = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_cr_write));
- env->intercept_dr_read = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_dr_read));
- env->intercept_dr_write = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_dr_write));
- env->intercept_exceptions = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_exceptions));
-
- env->gdt.base = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.base));
- env->gdt.limit = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.limit));
-
- env->idt.base = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.base));
- env->idt.limit = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.limit));
-
- /* clear exit_info_2 so we behave like the real hardware */
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2), 0);
-
- cpu_x86_update_cr0(env, ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr0)));
- cpu_x86_update_cr4(env, ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr4)));
- cpu_x86_update_cr3(env, ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr3)));
- env->cr[2] = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr2));
- int_ctl = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl));
- if (int_ctl & V_INTR_MASKING_MASK) {
- env->cr[8] = int_ctl & V_TPR_MASK;
- cpu_set_apic_tpr(env, env->cr[8]);
- if (env->eflags & IF_MASK)
- env->hflags |= HF_HIF_MASK;
- }
-
-#ifdef TARGET_X86_64
- env->efer = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.efer));
- env->hflags &= ~HF_LMA_MASK;
- if (env->efer & MSR_EFER_LMA)
- env->hflags |= HF_LMA_MASK;
-#endif
- env->eflags = 0;
- load_eflags(ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rflags)),
- ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
- CC_OP = CC_OP_EFLAGS;
- CC_DST = 0xffffffff;
-
- SVM_LOAD_SEG(env->vm_vmcb, ES, es);
- SVM_LOAD_SEG(env->vm_vmcb, CS, cs);
- SVM_LOAD_SEG(env->vm_vmcb, SS, ss);
- SVM_LOAD_SEG(env->vm_vmcb, DS, ds);
-
- EIP = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rip));
- env->eip = EIP;
- ESP = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rsp));
- EAX = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rax));
- env->dr[7] = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr7));
- env->dr[6] = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr6));
- cpu_x86_set_cpl(env, ldub_phys(env->vm_vmcb + offsetof(struct vmcb, save.cpl)));
-
- /* FIXME: guest state consistency checks */
-
- switch(ldub_phys(env->vm_vmcb + offsetof(struct vmcb, control.tlb_ctl))) {
- case TLB_CONTROL_DO_NOTHING:
- break;
- case TLB_CONTROL_FLUSH_ALL_ASID:
- /* FIXME: this is not 100% correct but should work for now */
- tlb_flush(env, 1);
- break;
- }
-
- helper_stgi();
-
- /* maybe we need to inject an event */
- event_inj = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj));
- if (event_inj & SVM_EVTINJ_VALID) {
- uint8_t vector = event_inj & SVM_EVTINJ_VEC_MASK;
- uint16_t valid_err = event_inj & SVM_EVTINJ_VALID_ERR;
- uint32_t event_inj_err = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj_err));
- stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj), event_inj & ~SVM_EVTINJ_VALID);
-
- if (loglevel & CPU_LOG_TB_IN_ASM)
- fprintf(logfile, "Injecting(%#hx): ", valid_err);
- /* FIXME: need to implement valid_err */
- switch (event_inj & SVM_EVTINJ_TYPE_MASK) {
- case SVM_EVTINJ_TYPE_INTR:
- env->exception_index = vector;
- env->error_code = event_inj_err;
- env->exception_is_int = 0;
- env->exception_next_eip = -1;
- if (loglevel & CPU_LOG_TB_IN_ASM)
- fprintf(logfile, "INTR");
- break;
- case SVM_EVTINJ_TYPE_NMI:
- env->exception_index = vector;
- env->error_code = event_inj_err;
- env->exception_is_int = 0;
- env->exception_next_eip = EIP;
- if (loglevel & CPU_LOG_TB_IN_ASM)
- fprintf(logfile, "NMI");
- break;
- case SVM_EVTINJ_TYPE_EXEPT:
- env->exception_index = vector;
- env->error_code = event_inj_err;
- env->exception_is_int = 0;
- env->exception_next_eip = -1;
- if (loglevel & CPU_LOG_TB_IN_ASM)
- fprintf(logfile, "EXEPT");
- break;
- case SVM_EVTINJ_TYPE_SOFT:
- env->exception_index = vector;
- env->error_code = event_inj_err;
- env->exception_is_int = 1;
- env->exception_next_eip = EIP;
- if (loglevel & CPU_LOG_TB_IN_ASM)
- fprintf(logfile, "SOFT");
- break;
- }
- if (loglevel & CPU_LOG_TB_IN_ASM)
- fprintf(logfile, " %#x %#x\n", env->exception_index, env->error_code);
- }
- if ((int_ctl & V_IRQ_MASK) || (env->intercept & INTERCEPT_VINTR)) {
- env->interrupt_request |= CPU_INTERRUPT_VIRQ;
- }
-
- cpu_loop_exit();
-}
-
-void helper_vmmcall(void)
-{
- if (loglevel & CPU_LOG_TB_IN_ASM)
- fprintf(logfile,"vmmcall!\n");
-}
-
-void helper_vmload(void)
-{
- target_ulong addr;
- addr = EAX;
- if (loglevel & CPU_LOG_TB_IN_ASM)
- fprintf(logfile,"vmload! " TARGET_FMT_lx "\nFS: %016" PRIx64 " | " TARGET_FMT_lx "\n",
- addr, ldq_phys(addr + offsetof(struct vmcb, save.fs.base)),
- env->segs[R_FS].base);
-
- SVM_LOAD_SEG2(addr, segs[R_FS], fs);
- SVM_LOAD_SEG2(addr, segs[R_GS], gs);
- SVM_LOAD_SEG2(addr, tr, tr);
- SVM_LOAD_SEG2(addr, ldt, ldtr);
-
-#ifdef TARGET_X86_64
- env->kernelgsbase = ldq_phys(addr + offsetof(struct vmcb, save.kernel_gs_base));
- env->lstar = ldq_phys(addr + offsetof(struct vmcb, save.lstar));
- env->cstar = ldq_phys(addr + offsetof(struct vmcb, save.cstar));
- env->fmask = ldq_phys(addr + offsetof(struct vmcb, save.sfmask));
-#endif
- env->star = ldq_phys(addr + offsetof(struct vmcb, save.star));
- env->sysenter_cs = ldq_phys(addr + offsetof(struct vmcb, save.sysenter_cs));
- env->sysenter_esp = ldq_phys(addr + offsetof(struct vmcb, save.sysenter_esp));
- env->sysenter_eip = ldq_phys(addr + offsetof(struct vmcb, save.sysenter_eip));
-}
-
-void helper_vmsave(void)
-{
- target_ulong addr;
- addr = EAX;
- if (loglevel & CPU_LOG_TB_IN_ASM)
- fprintf(logfile,"vmsave! " TARGET_FMT_lx "\nFS: %016" PRIx64 " | " TARGET_FMT_lx "\n",
- addr, ldq_phys(addr + offsetof(struct vmcb, save.fs.base)),
- env->segs[R_FS].base);
-
- SVM_SAVE_SEG(addr, segs[R_FS], fs);
- SVM_SAVE_SEG(addr, segs[R_GS], gs);
- SVM_SAVE_SEG(addr, tr, tr);
- SVM_SAVE_SEG(addr, ldt, ldtr);
-
-#ifdef TARGET_X86_64
- stq_phys(addr + offsetof(struct vmcb, save.kernel_gs_base), env->kernelgsbase);
- stq_phys(addr + offsetof(struct vmcb, save.lstar), env->lstar);
- stq_phys(addr + offsetof(struct vmcb, save.cstar), env->cstar);
- stq_phys(addr + offsetof(struct vmcb, save.sfmask), env->fmask);
-#endif
- stq_phys(addr + offsetof(struct vmcb, save.star), env->star);
- stq_phys(addr + offsetof(struct vmcb, save.sysenter_cs), env->sysenter_cs);
- stq_phys(addr + offsetof(struct vmcb, save.sysenter_esp), env->sysenter_esp);
- stq_phys(addr + offsetof(struct vmcb, save.sysenter_eip), env->sysenter_eip);
-}
-
-void helper_skinit(void)
-{
- if (loglevel & CPU_LOG_TB_IN_ASM)
- fprintf(logfile,"skinit!\n");
-}
-
-void helper_invlpga(void)
-{
- tlb_flush(env, 0);
-}
-
-void helper_svm_check_intercept_param(uint32_t type, uint64_t param)
-{
- switch(type) {
- case SVM_EXIT_READ_CR0 ... SVM_EXIT_READ_CR0 + 8:
- if (INTERCEPTEDw(_cr_read, (1 << (type - SVM_EXIT_READ_CR0)))) {
- helper_vmexit(type, param);
- }
- break;
- case SVM_EXIT_READ_DR0 ... SVM_EXIT_READ_DR0 + 8:
- if (INTERCEPTEDw(_dr_read, (1 << (type - SVM_EXIT_READ_DR0)))) {
- helper_vmexit(type, param);
- }
- break;
- case SVM_EXIT_WRITE_CR0 ... SVM_EXIT_WRITE_CR0 + 8:
- if (INTERCEPTEDw(_cr_write, (1 << (type - SVM_EXIT_WRITE_CR0)))) {
- helper_vmexit(type, param);
- }
- break;
- case SVM_EXIT_WRITE_DR0 ... SVM_EXIT_WRITE_DR0 + 8:
- if (INTERCEPTEDw(_dr_write, (1 << (type - SVM_EXIT_WRITE_DR0)))) {
- helper_vmexit(type, param);
- }
- break;
- case SVM_EXIT_EXCP_BASE ... SVM_EXIT_EXCP_BASE + 16:
- if (INTERCEPTEDl(_exceptions, (1 << (type - SVM_EXIT_EXCP_BASE)))) {
- helper_vmexit(type, param);
- }
- break;
- case SVM_EXIT_IOIO:
- break;
-
- case SVM_EXIT_MSR:
- if (INTERCEPTED(1ULL << INTERCEPT_MSR_PROT)) {
- /* FIXME: this should be read in at vmrun (faster this way?) */
- uint64_t addr = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.msrpm_base_pa));
- uint32_t t0, t1;
- switch((uint32_t)ECX) {
- case 0 ... 0x1fff:
- t0 = (ECX * 2) % 8;
- t1 = ECX / 8;
- break;
- case 0xc0000000 ... 0xc0001fff:
- t0 = (8192 + ECX - 0xc0000000) * 2;
- t1 = (t0 / 8);
- t0 %= 8;
- break;
- case 0xc0010000 ... 0xc0011fff:
- t0 = (16384 + ECX - 0xc0010000) * 2;
- t1 = (t0 / 8);
- t0 %= 8;
- break;
- default:
- helper_vmexit(type, param);
- t0 = 0;
- t1 = 0;
- break;
- }
- if (ldub_phys(addr + t1) & ((1 << param) << t0))
- helper_vmexit(type, param);
- }
- break;
- default:
- if (INTERCEPTED((1ULL << ((type - SVM_EXIT_INTR) + INTERCEPT_INTR)))) {
- helper_vmexit(type, param);
- }
- break;
- }
-}
-
-void helper_svm_check_io(uint32_t port, uint32_t param,
- uint32_t next_eip_addend)
-{
- if (INTERCEPTED(1ULL << INTERCEPT_IOIO_PROT)) {
- /* FIXME: this should be read in at vmrun (faster this way?) */
- uint64_t addr = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.iopm_base_pa));
- uint16_t mask = (1 << ((param >> 4) & 7)) - 1;
- if(lduw_phys(addr + port / 8) & (mask << (port & 7))) {
- /* next EIP */
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
- env->eip + next_eip_addend);
- helper_vmexit(SVM_EXIT_IOIO, param | (port << 16));
- }
- }
-}
-
-/* Note: currently only 32 bits of exit_code are used */
-void helper_vmexit(uint32_t exit_code, uint64_t exit_info_1)
-{
- uint32_t int_ctl;
-
- if (loglevel & CPU_LOG_TB_IN_ASM)
- fprintf(logfile,"vmexit(%08x, %016" PRIx64 ", %016" PRIx64 ", " TARGET_FMT_lx ")!\n",
- exit_code, exit_info_1,
- ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2)),
- EIP);
-
- if(env->hflags & HF_INHIBIT_IRQ_MASK) {
- stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_state), SVM_INTERRUPT_SHADOW_MASK);
- env->hflags &= ~HF_INHIBIT_IRQ_MASK;
- } else {
- stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_state), 0);
- }
-
- /* Save the VM state in the vmcb */
- SVM_SAVE_SEG(env->vm_vmcb, segs[R_ES], es);
- SVM_SAVE_SEG(env->vm_vmcb, segs[R_CS], cs);
- SVM_SAVE_SEG(env->vm_vmcb, segs[R_SS], ss);
- SVM_SAVE_SEG(env->vm_vmcb, segs[R_DS], ds);
-
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.base), env->gdt.base);
- stl_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.limit), env->gdt.limit);
-
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.base), env->idt.base);
- stl_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.limit), env->idt.limit);
-
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.efer), env->efer);
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr0), env->cr[0]);
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr2), env->cr[2]);
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr3), env->cr[3]);
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr4), env->cr[4]);
-
- if ((int_ctl = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl))) & V_INTR_MASKING_MASK) {
- int_ctl &= ~V_TPR_MASK;
- int_ctl |= env->cr[8] & V_TPR_MASK;
- stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl), int_ctl);
- }
-
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rflags), compute_eflags());
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rip), env->eip);
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rsp), ESP);
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rax), EAX);
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr7), env->dr[7]);
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr6), env->dr[6]);
- stb_phys(env->vm_vmcb + offsetof(struct vmcb, save.cpl), env->hflags & HF_CPL_MASK);
-
- /* Reload the host state from vm_hsave */
- env->hflags &= ~HF_HIF_MASK;
- env->intercept = 0;
- env->intercept_exceptions = 0;
- env->interrupt_request &= ~CPU_INTERRUPT_VIRQ;
-
- env->gdt.base = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.base));
- env->gdt.limit = ldl_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.limit));
-
- env->idt.base = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.base));
- env->idt.limit = ldl_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.limit));
-
- cpu_x86_update_cr0(env, ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr0)) | CR0_PE_MASK);
- cpu_x86_update_cr4(env, ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr4)));
- cpu_x86_update_cr3(env, ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr3)));
- if (int_ctl & V_INTR_MASKING_MASK) {
- env->cr[8] = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr8));
- cpu_set_apic_tpr(env, env->cr[8]);
- }
- /* we need to set the efer after the crs so the hidden flags get set properly */
-#ifdef TARGET_X86_64
- env->efer = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.efer));
- env->hflags &= ~HF_LMA_MASK;
- if (env->efer & MSR_EFER_LMA)
- env->hflags |= HF_LMA_MASK;
-#endif
-
- env->eflags = 0;
- load_eflags(ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rflags)),
- ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
- CC_OP = CC_OP_EFLAGS;
-
- SVM_LOAD_SEG(env->vm_hsave, ES, es);
- SVM_LOAD_SEG(env->vm_hsave, CS, cs);
- SVM_LOAD_SEG(env->vm_hsave, SS, ss);
- SVM_LOAD_SEG(env->vm_hsave, DS, ds);
-
- EIP = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip));
- ESP = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rsp));
- EAX = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rax));
-
- env->dr[6] = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr6));
- env->dr[7] = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr7));
-
- /* other setups */
- cpu_x86_set_cpl(env, 0);
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_code), exit_code);
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_1), exit_info_1);
-
- helper_clgi();
- /* FIXME: Resets the current ASID register to zero (host ASID). */
-
- /* Clears the V_IRQ and V_INTR_MASKING bits inside the processor. */
-
- /* Clears the TSC_OFFSET inside the processor. */
-
- /* If the host is in PAE mode, the processor reloads the host's PDPEs
- from the page table indicated the host's CR3. If the PDPEs contain
- illegal state, the processor causes a shutdown. */
-
- /* Forces CR0.PE = 1, RFLAGS.VM = 0. */
- env->cr[0] |= CR0_PE_MASK;
- env->eflags &= ~VM_MASK;
-
- /* Disables all breakpoints in the host DR7 register. */
-
- /* Checks the reloaded host state for consistency. */
-
- /* If the host's rIP reloaded by #VMEXIT is outside the limit of the
- host's code segment or non-canonical (in the case of long mode), a
- #GP fault is delivered inside the host.) */
-
- /* remove any pending exception */
- env->exception_index = -1;
- env->error_code = 0;
- env->old_exception = -1;
-
- cpu_loop_exit();
-}
-
-#endif
-
-/* MMX/SSE */
-/* XXX: optimize by storing fptt and fptags in the static cpu state */
-void helper_enter_mmx(void)
-{
- env->fpstt = 0;
- *(uint32_t *)(env->fptags) = 0;
- *(uint32_t *)(env->fptags + 4) = 0;
-}
-
-void helper_emms(void)
-{
- /* set to empty state */
- *(uint32_t *)(env->fptags) = 0x01010101;
- *(uint32_t *)(env->fptags + 4) = 0x01010101;
-}
-
-/* XXX: suppress */
-void helper_movq(uint64_t *d, uint64_t *s)
-{
- *d = *s;
-}
-
-#define SHIFT 0
-#include "ops_sse.h"
-
-#define SHIFT 1
-#include "ops_sse.h"
-
-#define SHIFT 0
-#include "helper_template.h"
-#undef SHIFT
-
-#define SHIFT 1
-#include "helper_template.h"
-#undef SHIFT
-
-#define SHIFT 2
-#include "helper_template.h"
-#undef SHIFT
-
-#ifdef TARGET_X86_64
-
-#define SHIFT 3
-#include "helper_template.h"
-#undef SHIFT
-
-#endif
-
-/* bit operations */
-target_ulong helper_bsf(target_ulong t0)
-{
- int count;
- target_ulong res;
-
- res = t0;
- count = 0;
- while ((res & 1) == 0) {
- count++;
- res >>= 1;
- }
- return count;
-}
-
-target_ulong helper_bsr(target_ulong t0)
-{
- int count;
- target_ulong res, mask;
-
- res = t0;
- count = TARGET_LONG_BITS - 1;
- mask = (target_ulong)1 << (TARGET_LONG_BITS - 1);
- while ((res & mask) == 0) {
- count--;
- res <<= 1;
- }
- return count;
-}
-
-
-static int compute_all_eflags(void)
-{
- return CC_SRC;
-}
-
-static int compute_c_eflags(void)
-{
- return CC_SRC & CC_C;
-}
-
-CCTable cc_table[CC_OP_NB] = {
- [CC_OP_DYNAMIC] = { /* should never happen */ },
-
- [CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags },
-
- [CC_OP_MULB] = { compute_all_mulb, compute_c_mull },
- [CC_OP_MULW] = { compute_all_mulw, compute_c_mull },
- [CC_OP_MULL] = { compute_all_mull, compute_c_mull },
-
- [CC_OP_ADDB] = { compute_all_addb, compute_c_addb },
- [CC_OP_ADDW] = { compute_all_addw, compute_c_addw },
- [CC_OP_ADDL] = { compute_all_addl, compute_c_addl },
-
- [CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb },
- [CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw },
- [CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl },
-
- [CC_OP_SUBB] = { compute_all_subb, compute_c_subb },
- [CC_OP_SUBW] = { compute_all_subw, compute_c_subw },
- [CC_OP_SUBL] = { compute_all_subl, compute_c_subl },
-
- [CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb },
- [CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw },
- [CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl },
-
- [CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb },
- [CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw },
- [CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl },
-
- [CC_OP_INCB] = { compute_all_incb, compute_c_incl },
- [CC_OP_INCW] = { compute_all_incw, compute_c_incl },
- [CC_OP_INCL] = { compute_all_incl, compute_c_incl },
-
- [CC_OP_DECB] = { compute_all_decb, compute_c_incl },
- [CC_OP_DECW] = { compute_all_decw, compute_c_incl },
- [CC_OP_DECL] = { compute_all_decl, compute_c_incl },
-
- [CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb },
- [CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw },
- [CC_OP_SHLL] = { compute_all_shll, compute_c_shll },
-
- [CC_OP_SARB] = { compute_all_sarb, compute_c_sarl },
- [CC_OP_SARW] = { compute_all_sarw, compute_c_sarl },
- [CC_OP_SARL] = { compute_all_sarl, compute_c_sarl },
-
-#ifdef TARGET_X86_64
- [CC_OP_MULQ] = { compute_all_mulq, compute_c_mull },
-
- [CC_OP_ADDQ] = { compute_all_addq, compute_c_addq },
-
- [CC_OP_ADCQ] = { compute_all_adcq, compute_c_adcq },
-
- [CC_OP_SUBQ] = { compute_all_subq, compute_c_subq },
-
- [CC_OP_SBBQ] = { compute_all_sbbq, compute_c_sbbq },
-
- [CC_OP_LOGICQ] = { compute_all_logicq, compute_c_logicq },
-
- [CC_OP_INCQ] = { compute_all_incq, compute_c_incl },
-
- [CC_OP_DECQ] = { compute_all_decq, compute_c_incl },
-
- [CC_OP_SHLQ] = { compute_all_shlq, compute_c_shlq },
-
- [CC_OP_SARQ] = { compute_all_sarq, compute_c_sarl },
-#endif
-};
-
+++ /dev/null
-/*
- * i386 helpers (without register variable usage)
- *
- * Copyright (c) 2003 Fabrice Bellard
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#include <stdarg.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <inttypes.h>
-#include <signal.h>
-#include <assert.h>
-
-#include "cpu.h"
-#include "exec-all.h"
-#include "svm.h"
-#include "qemu-common.h"
-
-//#define DEBUG_MMU
-
-static int cpu_x86_register (CPUX86State *env, const char *cpu_model);
-
-static void add_flagname_to_bitmaps(char *flagname, uint32_t *features,
- uint32_t *ext_features,
- uint32_t *ext2_features,
- uint32_t *ext3_features)
-{
- int i;
- /* feature flags taken from "Intel Processor Identification and the CPUID
- * Instruction" and AMD's "CPUID Specification". In cases of disagreement
- * about feature names, the Linux name is used. */
- const char *feature_name[] = {
- "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
- "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
- "pat", "pse36", "pn" /* Intel psn */, "clflush" /* Intel clfsh */, NULL, "ds" /* Intel dts */, "acpi", "mmx",
- "fxsr", "sse", "sse2", "ss", "ht" /* Intel htt */, "tm", "ia64", "pbe",
- };
- const char *ext_feature_name[] = {
- "pni" /* Intel,AMD sse3 */, NULL, NULL, "monitor", "ds_cpl", "vmx", NULL /* Linux smx */, "est",
- "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
- NULL, NULL, "dca", NULL, NULL, NULL, NULL, "popcnt",
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- };
- const char *ext2_feature_name[] = {
- "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
- "cx8" /* AMD CMPXCHG8B */, "apic", NULL, "syscall", "mttr", "pge", "mca", "cmov",
- "pat", "pse36", NULL, NULL /* Linux mp */, "nx" /* Intel xd */, NULL, "mmxext", "mmx",
- "fxsr", "fxsr_opt" /* AMD ffxsr */, "pdpe1gb" /* AMD Page1GB */, "rdtscp", NULL, "lm" /* Intel 64 */, "3dnowext", "3dnow",
- };
- const char *ext3_feature_name[] = {
- "lahf_lm" /* AMD LahfSahf */, "cmp_legacy", "svm", "extapic" /* AMD ExtApicSpace */, "cr8legacy" /* AMD AltMovCr8 */, "abm", "sse4a", "misalignsse",
- "3dnowprefetch", "osvw", NULL /* Linux ibs */, NULL, "skinit", "wdt", NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- };
-
- for ( i = 0 ; i < 32 ; i++ )
- if (feature_name[i] && !strcmp (flagname, feature_name[i])) {
- *features |= 1 << i;
- return;
- }
- for ( i = 0 ; i < 32 ; i++ )
- if (ext_feature_name[i] && !strcmp (flagname, ext_feature_name[i])) {
- *ext_features |= 1 << i;
- return;
- }
- for ( i = 0 ; i < 32 ; i++ )
- if (ext2_feature_name[i] && !strcmp (flagname, ext2_feature_name[i])) {
- *ext2_features |= 1 << i;
- return;
- }
- for ( i = 0 ; i < 32 ; i++ )
- if (ext3_feature_name[i] && !strcmp (flagname, ext3_feature_name[i])) {
- *ext3_features |= 1 << i;
- return;
- }
- fprintf(stderr, "CPU feature %s not found\n", flagname);
-}
-
-CPUX86State *cpu_x86_init(const char *cpu_model)
-{
- CPUX86State *env;
- static int inited;
-
- env = qemu_mallocz(sizeof(CPUX86State));
- if (!env)
- return NULL;
- cpu_exec_init(env);
- env->cpu_model_str = cpu_model;
-
- /* init various static tables */
- if (!inited) {
- inited = 1;
- optimize_flags_init();
- }
- if (cpu_x86_register(env, cpu_model) < 0) {
- cpu_x86_close(env);
- return NULL;
- }
- cpu_reset(env);
-#ifdef USE_KQEMU
- kqemu_init(env);
-#endif
- return env;
-}
-
-typedef struct x86_def_t {
- const char *name;
- uint32_t level;
- uint32_t vendor1, vendor2, vendor3;
- int family;
- int model;
- int stepping;
- uint32_t features, ext_features, ext2_features, ext3_features;
- uint32_t xlevel;
-} x86_def_t;
-
-#define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
-#define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
- CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX)
-#define PENTIUM2_FEATURES (PENTIUM_FEATURES | CPUID_PAE | CPUID_SEP | \
- CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
- CPUID_PSE36 | CPUID_FXSR)
-#define PENTIUM3_FEATURES (PENTIUM2_FEATURES | CPUID_SSE)
-#define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
- CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \
- CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \
- CPUID_PAE | CPUID_SEP | CPUID_APIC)
-static x86_def_t x86_defs[] = {
-#ifdef TARGET_X86_64
- {
- .name = "qemu64",
- .level = 2,
- .vendor1 = 0x68747541, /* "Auth" */
- .vendor2 = 0x69746e65, /* "enti" */
- .vendor3 = 0x444d4163, /* "cAMD" */
- .family = 6,
- .model = 2,
- .stepping = 3,
- .features = PPRO_FEATURES |
- /* these features are needed for Win64 and aren't fully implemented */
- CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
- /* this feature is needed for Solaris and isn't fully implemented */
- CPUID_PSE36,
- .ext_features = CPUID_EXT_SSE3,
- .ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
- CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX |
- CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
- .ext3_features = CPUID_EXT3_SVM,
- .xlevel = 0x8000000A,
- },
-#endif
- {
- .name = "qemu32",
- .level = 2,
- .family = 6,
- .model = 3,
- .stepping = 3,
- .features = PPRO_FEATURES,
- .ext_features = CPUID_EXT_SSE3,
- .xlevel = 0,
- },
- {
- .name = "486",
- .level = 0,
- .family = 4,
- .model = 0,
- .stepping = 0,
- .features = I486_FEATURES,
- .xlevel = 0,
- },
- {
- .name = "pentium",
- .level = 1,
- .family = 5,
- .model = 4,
- .stepping = 3,
- .features = PENTIUM_FEATURES,
- .xlevel = 0,
- },
- {
- .name = "pentium2",
- .level = 2,
- .family = 6,
- .model = 5,
- .stepping = 2,
- .features = PENTIUM2_FEATURES,
- .xlevel = 0,
- },
- {
- .name = "pentium3",
- .level = 2,
- .family = 6,
- .model = 7,
- .stepping = 3,
- .features = PENTIUM3_FEATURES,
- .xlevel = 0,
- },
- {
- .name = "athlon",
- .level = 2,
- .vendor1 = 0x68747541, /* "Auth" */
- .vendor2 = 0x69746e65, /* "enti" */
- .vendor3 = 0x444d4163, /* "cAMD" */
- .family = 6,
- .model = 2,
- .stepping = 3,
- .features = PPRO_FEATURES | PPRO_FEATURES | CPUID_PSE36 | CPUID_VME | CPUID_MTRR | CPUID_MCA,
- .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_MMXEXT | CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
- .xlevel = 0x80000008,
- },
-};
-
-static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
-{
- unsigned int i;
- x86_def_t *def;
-
- char *s = strdup(cpu_model);
- char *featurestr, *name = strtok(s, ",");
- uint32_t plus_features = 0, plus_ext_features = 0, plus_ext2_features = 0, plus_ext3_features = 0;
- uint32_t minus_features = 0, minus_ext_features = 0, minus_ext2_features = 0, minus_ext3_features = 0;
- int family = -1, model = -1, stepping = -1;
-
- def = NULL;
- for (i = 0; i < sizeof(x86_defs) / sizeof(x86_def_t); i++) {
- if (strcmp(name, x86_defs[i].name) == 0) {
- def = &x86_defs[i];
- break;
- }
- }
- if (!def)
- goto error;
- memcpy(x86_cpu_def, def, sizeof(*def));
-
- featurestr = strtok(NULL, ",");
-
- while (featurestr) {
- char *val;
- if (featurestr[0] == '+') {
- add_flagname_to_bitmaps(featurestr + 1, &plus_features, &plus_ext_features, &plus_ext2_features, &plus_ext3_features);
- } else if (featurestr[0] == '-') {
- add_flagname_to_bitmaps(featurestr + 1, &minus_features, &minus_ext_features, &minus_ext2_features, &minus_ext3_features);
- } else if ((val = strchr(featurestr, '='))) {
- *val = 0; val++;
- if (!strcmp(featurestr, "family")) {
- char *err;
- family = strtol(val, &err, 10);
- if (!*val || *err || family < 0) {
- fprintf(stderr, "bad numerical value %s\n", val);
- x86_cpu_def = 0;
- goto error;
- }
- x86_cpu_def->family = family;
- } else if (!strcmp(featurestr, "model")) {
- char *err;
- model = strtol(val, &err, 10);
- if (!*val || *err || model < 0 || model > 0xf) {
- fprintf(stderr, "bad numerical value %s\n", val);
- x86_cpu_def = 0;
- goto error;
- }
- x86_cpu_def->model = model;
- } else if (!strcmp(featurestr, "stepping")) {
- char *err;
- stepping = strtol(val, &err, 10);
- if (!*val || *err || stepping < 0 || stepping > 0xf) {
- fprintf(stderr, "bad numerical value %s\n", val);
- x86_cpu_def = 0;
- goto error;
- }
- x86_cpu_def->stepping = stepping;
- } else {
- fprintf(stderr, "unrecognized feature %s\n", featurestr);
- x86_cpu_def = 0;
- goto error;
- }
- } else {
- fprintf(stderr, "feature string `%s' not in format (+feature|-feature|feature=xyz)\n", featurestr);
- x86_cpu_def = 0;
- goto error;
- }
- featurestr = strtok(NULL, ",");
- }
- x86_cpu_def->features |= plus_features;
- x86_cpu_def->ext_features |= plus_ext_features;
- x86_cpu_def->ext2_features |= plus_ext2_features;
- x86_cpu_def->ext3_features |= plus_ext3_features;
- x86_cpu_def->features &= ~minus_features;
- x86_cpu_def->ext_features &= ~minus_ext_features;
- x86_cpu_def->ext2_features &= ~minus_ext2_features;
- x86_cpu_def->ext3_features &= ~minus_ext3_features;
- free(s);
- return 0;
-
-error:
- free(s);
- return -1;
-}
-
-void x86_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
-{
- unsigned int i;
-
- for (i = 0; i < sizeof(x86_defs) / sizeof(x86_def_t); i++)
- (*cpu_fprintf)(f, "x86 %16s\n", x86_defs[i].name);
-}
-
-static int cpu_x86_register (CPUX86State *env, const char *cpu_model)
-{
- x86_def_t def1, *def = &def1;
-
- if (cpu_x86_find_by_name(def, cpu_model) < 0)
- return -1;
- if (def->vendor1) {
- env->cpuid_vendor1 = def->vendor1;
- env->cpuid_vendor2 = def->vendor2;
- env->cpuid_vendor3 = def->vendor3;
- } else {
- env->cpuid_vendor1 = 0x756e6547; /* "Genu" */
- env->cpuid_vendor2 = 0x49656e69; /* "ineI" */
- env->cpuid_vendor3 = 0x6c65746e; /* "ntel" */
- }
- env->cpuid_level = def->level;
- env->cpuid_version = (def->family << 8) | (def->model << 4) | def->stepping;
- env->cpuid_features = def->features;
- env->pat = 0x0007040600070406ULL;
- env->cpuid_ext_features = def->ext_features;
- env->cpuid_ext2_features = def->ext2_features;
- env->cpuid_xlevel = def->xlevel;
- env->cpuid_ext3_features = def->ext3_features;
- {
- const char *model_id = "QEMU Virtual CPU version " QEMU_VERSION;
- int c, len, i;
- len = strlen(model_id);
- for(i = 0; i < 48; i++) {
- if (i >= len)
- c = '\0';
- else
- c = model_id[i];
- env->cpuid_model[i >> 2] |= c << (8 * (i & 3));
- }
- }
- return 0;
-}
-
-/* NOTE: must be called outside the CPU execute loop */
-void cpu_reset(CPUX86State *env)
-{
- int i;
-
- memset(env, 0, offsetof(CPUX86State, breakpoints));
-
- tlb_flush(env, 1);
-
- env->old_exception = -1;
-
- /* init to reset state */
-
-#ifdef CONFIG_SOFTMMU
- env->hflags |= HF_SOFTMMU_MASK;
-#endif
- env->hflags |= HF_GIF_MASK;
-
- cpu_x86_update_cr0(env, 0x60000010);
- env->a20_mask = ~0x0;
- env->smbase = 0x30000;
-
- env->idt.limit = 0xffff;
- env->gdt.limit = 0xffff;
- env->ldt.limit = 0xffff;
- env->ldt.flags = DESC_P_MASK;
- env->tr.limit = 0xffff;
- env->tr.flags = DESC_P_MASK;
-
- cpu_x86_load_seg_cache(env, R_CS, 0xf000, 0xffff0000, 0xffff, 0);
- cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffff, 0);
- cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffff, 0);
- cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffff, 0);
- cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffff, 0);
- cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffff, 0);
-
- env->eip = 0xfff0;
- env->regs[R_EDX] = env->cpuid_version;
-
- env->eflags = 0x2;
-
- /* FPU init */
- for(i = 0;i < 8; i++)
- env->fptags[i] = 1;
- env->fpuc = 0x37f;
-
- env->mxcsr = 0x1f80;
-}
-
-void cpu_x86_close(CPUX86State *env)
-{
- free(env);
-}
-
-/***********************************************************/
-/* x86 debug */
-
-static const char *cc_op_str[] = {
- "DYNAMIC",
- "EFLAGS",
-
- "MULB",
- "MULW",
- "MULL",
- "MULQ",
-
- "ADDB",
- "ADDW",
- "ADDL",
- "ADDQ",
-
- "ADCB",
- "ADCW",
- "ADCL",
- "ADCQ",
-
- "SUBB",
- "SUBW",
- "SUBL",
- "SUBQ",
-
- "SBBB",
- "SBBW",
- "SBBL",
- "SBBQ",
-
- "LOGICB",
- "LOGICW",
- "LOGICL",
- "LOGICQ",
-
- "INCB",
- "INCW",
- "INCL",
- "INCQ",
-
- "DECB",
- "DECW",
- "DECL",
- "DECQ",
-
- "SHLB",
- "SHLW",
- "SHLL",
- "SHLQ",
-
- "SARB",
- "SARW",
- "SARL",
- "SARQ",
-};
-
-void cpu_dump_state(CPUState *env, FILE *f,
- int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
- int flags)
-{
- int eflags, i, nb;
- char cc_op_name[32];
- static const char *seg_name[6] = { "ES", "CS", "SS", "DS", "FS", "GS" };
-
- eflags = env->eflags;
-#ifdef TARGET_X86_64
- if (env->hflags & HF_CS64_MASK) {
- cpu_fprintf(f,
- "RAX=%016" PRIx64 " RBX=%016" PRIx64 " RCX=%016" PRIx64 " RDX=%016" PRIx64 "\n"
- "RSI=%016" PRIx64 " RDI=%016" PRIx64 " RBP=%016" PRIx64 " RSP=%016" PRIx64 "\n"
- "R8 =%016" PRIx64 " R9 =%016" PRIx64 " R10=%016" PRIx64 " R11=%016" PRIx64 "\n"
- "R12=%016" PRIx64 " R13=%016" PRIx64 " R14=%016" PRIx64 " R15=%016" PRIx64 "\n"
- "RIP=%016" PRIx64 " RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
- env->regs[R_EAX],
- env->regs[R_EBX],
- env->regs[R_ECX],
- env->regs[R_EDX],
- env->regs[R_ESI],
- env->regs[R_EDI],
- env->regs[R_EBP],
- env->regs[R_ESP],
- env->regs[8],
- env->regs[9],
- env->regs[10],
- env->regs[11],
- env->regs[12],
- env->regs[13],
- env->regs[14],
- env->regs[15],
- env->eip, eflags,
- eflags & DF_MASK ? 'D' : '-',
- eflags & CC_O ? 'O' : '-',
- eflags & CC_S ? 'S' : '-',
- eflags & CC_Z ? 'Z' : '-',
- eflags & CC_A ? 'A' : '-',
- eflags & CC_P ? 'P' : '-',
- eflags & CC_C ? 'C' : '-',
- env->hflags & HF_CPL_MASK,
- (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
- (int)(env->a20_mask >> 20) & 1,
- (env->hflags >> HF_SMM_SHIFT) & 1,
- (env->hflags >> HF_HALTED_SHIFT) & 1);
- } else
-#endif
- {
- cpu_fprintf(f, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
- "ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
- "EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
- (uint32_t)env->regs[R_EAX],
- (uint32_t)env->regs[R_EBX],
- (uint32_t)env->regs[R_ECX],
- (uint32_t)env->regs[R_EDX],
- (uint32_t)env->regs[R_ESI],
- (uint32_t)env->regs[R_EDI],
- (uint32_t)env->regs[R_EBP],
- (uint32_t)env->regs[R_ESP],
- (uint32_t)env->eip, eflags,
- eflags & DF_MASK ? 'D' : '-',
- eflags & CC_O ? 'O' : '-',
- eflags & CC_S ? 'S' : '-',
- eflags & CC_Z ? 'Z' : '-',
- eflags & CC_A ? 'A' : '-',
- eflags & CC_P ? 'P' : '-',
- eflags & CC_C ? 'C' : '-',
- env->hflags & HF_CPL_MASK,
- (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
- (int)(env->a20_mask >> 20) & 1,
- (env->hflags >> HF_SMM_SHIFT) & 1,
- (env->hflags >> HF_HALTED_SHIFT) & 1);
- }
-
-#ifdef TARGET_X86_64
- if (env->hflags & HF_LMA_MASK) {
- for(i = 0; i < 6; i++) {
- SegmentCache *sc = &env->segs[i];
- cpu_fprintf(f, "%s =%04x %016" PRIx64 " %08x %08x\n",
- seg_name[i],
- sc->selector,
- sc->base,
- sc->limit,
- sc->flags);
- }
- cpu_fprintf(f, "LDT=%04x %016" PRIx64 " %08x %08x\n",
- env->ldt.selector,
- env->ldt.base,
- env->ldt.limit,
- env->ldt.flags);
- cpu_fprintf(f, "TR =%04x %016" PRIx64 " %08x %08x\n",
- env->tr.selector,
- env->tr.base,
- env->tr.limit,
- env->tr.flags);
- cpu_fprintf(f, "GDT= %016" PRIx64 " %08x\n",
- env->gdt.base, env->gdt.limit);
- cpu_fprintf(f, "IDT= %016" PRIx64 " %08x\n",
- env->idt.base, env->idt.limit);
- cpu_fprintf(f, "CR0=%08x CR2=%016" PRIx64 " CR3=%016" PRIx64 " CR4=%08x\n",
- (uint32_t)env->cr[0],
- env->cr[2],
- env->cr[3],
- (uint32_t)env->cr[4]);
- } else
-#endif
- {
- for(i = 0; i < 6; i++) {
- SegmentCache *sc = &env->segs[i];
- cpu_fprintf(f, "%s =%04x %08x %08x %08x\n",
- seg_name[i],
- sc->selector,
- (uint32_t)sc->base,
- sc->limit,
- sc->flags);
- }
- cpu_fprintf(f, "LDT=%04x %08x %08x %08x\n",
- env->ldt.selector,
- (uint32_t)env->ldt.base,
- env->ldt.limit,
- env->ldt.flags);
- cpu_fprintf(f, "TR =%04x %08x %08x %08x\n",
- env->tr.selector,
- (uint32_t)env->tr.base,
- env->tr.limit,
- env->tr.flags);
- cpu_fprintf(f, "GDT= %08x %08x\n",
- (uint32_t)env->gdt.base, env->gdt.limit);
- cpu_fprintf(f, "IDT= %08x %08x\n",
- (uint32_t)env->idt.base, env->idt.limit);
- cpu_fprintf(f, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
- (uint32_t)env->cr[0],
- (uint32_t)env->cr[2],
- (uint32_t)env->cr[3],
- (uint32_t)env->cr[4]);
- }
- if (flags & X86_DUMP_CCOP) {
- if ((unsigned)env->cc_op < CC_OP_NB)
- snprintf(cc_op_name, sizeof(cc_op_name), "%s", cc_op_str[env->cc_op]);
- else
- snprintf(cc_op_name, sizeof(cc_op_name), "[%d]", env->cc_op);
-#ifdef TARGET_X86_64
- if (env->hflags & HF_CS64_MASK) {
- cpu_fprintf(f, "CCS=%016" PRIx64 " CCD=%016" PRIx64 " CCO=%-8s\n",
- env->cc_src, env->cc_dst,
- cc_op_name);
- } else
-#endif
- {
- cpu_fprintf(f, "CCS=%08x CCD=%08x CCO=%-8s\n",
- (uint32_t)env->cc_src, (uint32_t)env->cc_dst,
- cc_op_name);
- }
- }
- if (flags & X86_DUMP_FPU) {
- int fptag;
- fptag = 0;
- for(i = 0; i < 8; i++) {
- fptag |= ((!env->fptags[i]) << i);
- }
- cpu_fprintf(f, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
- env->fpuc,
- (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11,
- env->fpstt,
- fptag,
- env->mxcsr);
- for(i=0;i<8;i++) {
-#if defined(USE_X86LDOUBLE)
- union {
- long double d;
- struct {
- uint64_t lower;
- uint16_t upper;
- } l;
- } tmp;
- tmp.d = env->fpregs[i].d;
- cpu_fprintf(f, "FPR%d=%016" PRIx64 " %04x",
- i, tmp.l.lower, tmp.l.upper);
-#else
- cpu_fprintf(f, "FPR%d=%016" PRIx64,
- i, env->fpregs[i].mmx.q);
-#endif
- if ((i & 1) == 1)
- cpu_fprintf(f, "\n");
- else
- cpu_fprintf(f, " ");
- }
- if (env->hflags & HF_CS64_MASK)
- nb = 16;
- else
- nb = 8;
- for(i=0;i<nb;i++) {
- cpu_fprintf(f, "XMM%02d=%08x%08x%08x%08x",
- i,
- env->xmm_regs[i].XMM_L(3),
- env->xmm_regs[i].XMM_L(2),
- env->xmm_regs[i].XMM_L(1),
- env->xmm_regs[i].XMM_L(0));
- if ((i & 1) == 1)
- cpu_fprintf(f, "\n");
- else
- cpu_fprintf(f, " ");
- }
- }
-}
-
-/***********************************************************/
-/* x86 mmu */
-/* XXX: add PGE support */
-
-void cpu_x86_set_a20(CPUX86State *env, int a20_state)
-{
- a20_state = (a20_state != 0);
- if (a20_state != ((env->a20_mask >> 20) & 1)) {
-#if defined(DEBUG_MMU)
- printf("A20 update: a20=%d\n", a20_state);
-#endif
- /* if the cpu is currently executing code, we must unlink it and
- all the potentially executing TB */
- cpu_interrupt(env, CPU_INTERRUPT_EXITTB);
-
- /* when a20 is changed, all the MMU mappings are invalid, so
- we must flush everything */
- tlb_flush(env, 1);
- env->a20_mask = (~0x100000) | (a20_state << 20);
- }
-}
-
-void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0)
-{
- int pe_state;
-
-#if defined(DEBUG_MMU)
- printf("CR0 update: CR0=0x%08x\n", new_cr0);
-#endif
- if ((new_cr0 & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK)) !=
- (env->cr[0] & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK))) {
- tlb_flush(env, 1);
- }
-
-#ifdef TARGET_X86_64
- if (!(env->cr[0] & CR0_PG_MASK) && (new_cr0 & CR0_PG_MASK) &&
- (env->efer & MSR_EFER_LME)) {
- /* enter in long mode */
- /* XXX: generate an exception */
- if (!(env->cr[4] & CR4_PAE_MASK))
- return;
- env->efer |= MSR_EFER_LMA;
- env->hflags |= HF_LMA_MASK;
- } else if ((env->cr[0] & CR0_PG_MASK) && !(new_cr0 & CR0_PG_MASK) &&
- (env->efer & MSR_EFER_LMA)) {
- /* exit long mode */
- env->efer &= ~MSR_EFER_LMA;
- env->hflags &= ~(HF_LMA_MASK | HF_CS64_MASK);
- env->eip &= 0xffffffff;
- }
-#endif
- env->cr[0] = new_cr0 | CR0_ET_MASK;
-
- /* update PE flag in hidden flags */
- pe_state = (env->cr[0] & CR0_PE_MASK);
- env->hflags = (env->hflags & ~HF_PE_MASK) | (pe_state << HF_PE_SHIFT);
- /* ensure that ADDSEG is always set in real mode */
- env->hflags |= ((pe_state ^ 1) << HF_ADDSEG_SHIFT);
- /* update FPU flags */
- env->hflags = (env->hflags & ~(HF_MP_MASK | HF_EM_MASK | HF_TS_MASK)) |
- ((new_cr0 << (HF_MP_SHIFT - 1)) & (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK));
-}
-
-/* XXX: in legacy PAE mode, generate a GPF if reserved bits are set in
- the PDPT */
-void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3)
-{
- env->cr[3] = new_cr3;
- if (env->cr[0] & CR0_PG_MASK) {
-#if defined(DEBUG_MMU)
- printf("CR3 update: CR3=" TARGET_FMT_lx "\n", new_cr3);
-#endif
- tlb_flush(env, 0);
- }
-}
-
-void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4)
-{
-#if defined(DEBUG_MMU)
- printf("CR4 update: CR4=%08x\n", (uint32_t)env->cr[4]);
-#endif
- if ((new_cr4 & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK)) !=
- (env->cr[4] & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK))) {
- tlb_flush(env, 1);
- }
- /* SSE handling */
- if (!(env->cpuid_features & CPUID_SSE))
- new_cr4 &= ~CR4_OSFXSR_MASK;
- if (new_cr4 & CR4_OSFXSR_MASK)
- env->hflags |= HF_OSFXSR_MASK;
- else
- env->hflags &= ~HF_OSFXSR_MASK;
-
- env->cr[4] = new_cr4;
-}
-
-/* XXX: also flush 4MB pages */
-void cpu_x86_flush_tlb(CPUX86State *env, target_ulong addr)
-{
- tlb_flush_page(env, addr);
-}
-
-#if defined(CONFIG_USER_ONLY)
-
-int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
- int is_write, int mmu_idx, int is_softmmu)
-{
- /* user mode only emulation */
- is_write &= 1;
- env->cr[2] = addr;
- env->error_code = (is_write << PG_ERROR_W_BIT);
- env->error_code |= PG_ERROR_U_MASK;
- env->exception_index = EXCP0E_PAGE;
- return 1;
-}
-
-target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
-{
- return addr;
-}
-
-#else
-
-/* XXX: This value should match the one returned by CPUID
- * and in exec.c */
-#if defined(USE_KQEMU)
-#define PHYS_ADDR_MASK 0xfffff000L
-#else
-# if defined(TARGET_X86_64)
-# define PHYS_ADDR_MASK 0xfffffff000L
-# else
-# define PHYS_ADDR_MASK 0xffffff000L
-# endif
-#endif
-
-/* return value:
- -1 = cannot handle fault
- 0 = nothing more to do
- 1 = generate PF fault
- 2 = soft MMU activation required for this block
-*/
-int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
- int is_write1, int mmu_idx, int is_softmmu)
-{
- uint64_t ptep, pte;
- target_ulong pde_addr, pte_addr;
- int error_code, is_dirty, prot, page_size, ret, is_write, is_user;
- target_phys_addr_t paddr;
- uint32_t page_offset;
- target_ulong vaddr, virt_addr;
-
- is_user = mmu_idx == MMU_USER_IDX;
-#if defined(DEBUG_MMU)
- printf("MMU fault: addr=" TARGET_FMT_lx " w=%d u=%d eip=" TARGET_FMT_lx "\n",
- addr, is_write1, is_user, env->eip);
-#endif
- is_write = is_write1 & 1;
-
- if (!(env->cr[0] & CR0_PG_MASK)) {
- pte = addr;
- virt_addr = addr & TARGET_PAGE_MASK;
- prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
- page_size = 4096;
- goto do_mapping;
- }
-
- if (env->cr[4] & CR4_PAE_MASK) {
- uint64_t pde, pdpe;
- target_ulong pdpe_addr;
-
-#ifdef TARGET_X86_64
- if (env->hflags & HF_LMA_MASK) {
- uint64_t pml4e_addr, pml4e;
- int32_t sext;
-
- /* test virtual address sign extension */
- sext = (int64_t)addr >> 47;
- if (sext != 0 && sext != -1) {
- env->error_code = 0;
- env->exception_index = EXCP0D_GPF;
- return 1;
- }
-
- pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
- env->a20_mask;
- pml4e = ldq_phys(pml4e_addr);
- if (!(pml4e & PG_PRESENT_MASK)) {
- error_code = 0;
- goto do_fault;
- }
- if (!(env->efer & MSR_EFER_NXE) && (pml4e & PG_NX_MASK)) {
- error_code = PG_ERROR_RSVD_MASK;
- goto do_fault;
- }
- if (!(pml4e & PG_ACCESSED_MASK)) {
- pml4e |= PG_ACCESSED_MASK;
- stl_phys_notdirty(pml4e_addr, pml4e);
- }
- ptep = pml4e ^ PG_NX_MASK;
- pdpe_addr = ((pml4e & PHYS_ADDR_MASK) + (((addr >> 30) & 0x1ff) << 3)) &
- env->a20_mask;
- pdpe = ldq_phys(pdpe_addr);
- if (!(pdpe & PG_PRESENT_MASK)) {
- error_code = 0;
- goto do_fault;
- }
- if (!(env->efer & MSR_EFER_NXE) && (pdpe & PG_NX_MASK)) {
- error_code = PG_ERROR_RSVD_MASK;
- goto do_fault;
- }
- ptep &= pdpe ^ PG_NX_MASK;
- if (!(pdpe & PG_ACCESSED_MASK)) {
- pdpe |= PG_ACCESSED_MASK;
- stl_phys_notdirty(pdpe_addr, pdpe);
- }
- } else
-#endif
- {
- /* XXX: load them when cr3 is loaded ? */
- pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
- env->a20_mask;
- pdpe = ldq_phys(pdpe_addr);
- if (!(pdpe & PG_PRESENT_MASK)) {
- error_code = 0;
- goto do_fault;
- }
- ptep = PG_NX_MASK | PG_USER_MASK | PG_RW_MASK;
- }
-
- pde_addr = ((pdpe & PHYS_ADDR_MASK) + (((addr >> 21) & 0x1ff) << 3)) &
- env->a20_mask;
- pde = ldq_phys(pde_addr);
- if (!(pde & PG_PRESENT_MASK)) {
- error_code = 0;
- goto do_fault;
- }
- if (!(env->efer & MSR_EFER_NXE) && (pde & PG_NX_MASK)) {
- error_code = PG_ERROR_RSVD_MASK;
- goto do_fault;
- }
- ptep &= pde ^ PG_NX_MASK;
- if (pde & PG_PSE_MASK) {
- /* 2 MB page */
- page_size = 2048 * 1024;
- ptep ^= PG_NX_MASK;
- if ((ptep & PG_NX_MASK) && is_write1 == 2)
- goto do_fault_protect;
- if (is_user) {
- if (!(ptep & PG_USER_MASK))
- goto do_fault_protect;
- if (is_write && !(ptep & PG_RW_MASK))
- goto do_fault_protect;
- } else {
- if ((env->cr[0] & CR0_WP_MASK) &&
- is_write && !(ptep & PG_RW_MASK))
- goto do_fault_protect;
- }
- is_dirty = is_write && !(pde & PG_DIRTY_MASK);
- if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
- pde |= PG_ACCESSED_MASK;
- if (is_dirty)
- pde |= PG_DIRTY_MASK;
- stl_phys_notdirty(pde_addr, pde);
- }
- /* align to page_size */
- pte = pde & ((PHYS_ADDR_MASK & ~(page_size - 1)) | 0xfff);
- virt_addr = addr & ~(page_size - 1);
- } else {
- /* 4 KB page */
- if (!(pde & PG_ACCESSED_MASK)) {
- pde |= PG_ACCESSED_MASK;
- stl_phys_notdirty(pde_addr, pde);
- }
- pte_addr = ((pde & PHYS_ADDR_MASK) + (((addr >> 12) & 0x1ff) << 3)) &
- env->a20_mask;
- pte = ldq_phys(pte_addr);
- if (!(pte & PG_PRESENT_MASK)) {
- error_code = 0;
- goto do_fault;
- }
- if (!(env->efer & MSR_EFER_NXE) && (pte & PG_NX_MASK)) {
- error_code = PG_ERROR_RSVD_MASK;
- goto do_fault;
- }
- /* combine pde and pte nx, user and rw protections */
- ptep &= pte ^ PG_NX_MASK;
- ptep ^= PG_NX_MASK;
- if ((ptep & PG_NX_MASK) && is_write1 == 2)
- goto do_fault_protect;
- if (is_user) {
- if (!(ptep & PG_USER_MASK))
- goto do_fault_protect;
- if (is_write && !(ptep & PG_RW_MASK))
- goto do_fault_protect;
- } else {
- if ((env->cr[0] & CR0_WP_MASK) &&
- is_write && !(ptep & PG_RW_MASK))
- goto do_fault_protect;
- }
- is_dirty = is_write && !(pte & PG_DIRTY_MASK);
- if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
- pte |= PG_ACCESSED_MASK;
- if (is_dirty)
- pte |= PG_DIRTY_MASK;
- stl_phys_notdirty(pte_addr, pte);
- }
- page_size = 4096;
- virt_addr = addr & ~0xfff;
- pte = pte & (PHYS_ADDR_MASK | 0xfff);
- }
- } else {
- uint32_t pde;
-
- /* page directory entry */
- pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) &
- env->a20_mask;
- pde = ldl_phys(pde_addr);
- if (!(pde & PG_PRESENT_MASK)) {
- error_code = 0;
- goto do_fault;
- }
- /* if PSE bit is set, then we use a 4MB page */
- if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
- page_size = 4096 * 1024;
- if (is_user) {
- if (!(pde & PG_USER_MASK))
- goto do_fault_protect;
- if (is_write && !(pde & PG_RW_MASK))
- goto do_fault_protect;
- } else {
- if ((env->cr[0] & CR0_WP_MASK) &&
- is_write && !(pde & PG_RW_MASK))
- goto do_fault_protect;
- }
- is_dirty = is_write && !(pde & PG_DIRTY_MASK);
- if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
- pde |= PG_ACCESSED_MASK;
- if (is_dirty)
- pde |= PG_DIRTY_MASK;
- stl_phys_notdirty(pde_addr, pde);
- }
-
- pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
- ptep = pte;
- virt_addr = addr & ~(page_size - 1);
- } else {
- if (!(pde & PG_ACCESSED_MASK)) {
- pde |= PG_ACCESSED_MASK;
- stl_phys_notdirty(pde_addr, pde);
- }
-
- /* page directory entry */
- pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) &
- env->a20_mask;
- pte = ldl_phys(pte_addr);
- if (!(pte & PG_PRESENT_MASK)) {
- error_code = 0;
- goto do_fault;
- }
- /* combine pde and pte user and rw protections */
- ptep = pte & pde;
- if (is_user) {
- if (!(ptep & PG_USER_MASK))
- goto do_fault_protect;
- if (is_write && !(ptep & PG_RW_MASK))
- goto do_fault_protect;
- } else {
- if ((env->cr[0] & CR0_WP_MASK) &&
- is_write && !(ptep & PG_RW_MASK))
- goto do_fault_protect;
- }
- is_dirty = is_write && !(pte & PG_DIRTY_MASK);
- if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
- pte |= PG_ACCESSED_MASK;
- if (is_dirty)
- pte |= PG_DIRTY_MASK;
- stl_phys_notdirty(pte_addr, pte);
- }
- page_size = 4096;
- virt_addr = addr & ~0xfff;
- }
- }
- /* the page can be put in the TLB */
- prot = PAGE_READ;
- if (!(ptep & PG_NX_MASK))
- prot |= PAGE_EXEC;
- if (pte & PG_DIRTY_MASK) {
- /* only set write access if already dirty... otherwise wait
- for dirty access */
- if (is_user) {
- if (ptep & PG_RW_MASK)
- prot |= PAGE_WRITE;
- } else {
- if (!(env->cr[0] & CR0_WP_MASK) ||
- (ptep & PG_RW_MASK))
- prot |= PAGE_WRITE;
- }
- }
- do_mapping:
- pte = pte & env->a20_mask;
-
- /* Even if 4MB pages, we map only one 4KB page in the cache to
- avoid filling it too fast */
- page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
- paddr = (pte & TARGET_PAGE_MASK) + page_offset;
- vaddr = virt_addr + page_offset;
-
- ret = tlb_set_page_exec(env, vaddr, paddr, prot, mmu_idx, is_softmmu);
- return ret;
- do_fault_protect:
- error_code = PG_ERROR_P_MASK;
- do_fault:
- error_code |= (is_write << PG_ERROR_W_BIT);
- if (is_user)
- error_code |= PG_ERROR_U_MASK;
- if (is_write1 == 2 &&
- (env->efer & MSR_EFER_NXE) &&
- (env->cr[4] & CR4_PAE_MASK))
- error_code |= PG_ERROR_I_D_MASK;
- if (INTERCEPTEDl(_exceptions, 1 << EXCP0E_PAGE)) {
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2), addr);
- } else {
- env->cr[2] = addr;
- }
- env->error_code = error_code;
- env->exception_index = EXCP0E_PAGE;
- /* the VMM will handle this */
- if (INTERCEPTEDl(_exceptions, 1 << EXCP0E_PAGE))
- return 2;
- return 1;
-}
-
-target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
-{
- target_ulong pde_addr, pte_addr;
- uint64_t pte;
- target_phys_addr_t paddr;
- uint32_t page_offset;
- int page_size;
-
- if (env->cr[4] & CR4_PAE_MASK) {
- target_ulong pdpe_addr;
- uint64_t pde, pdpe;
-
-#ifdef TARGET_X86_64
- if (env->hflags & HF_LMA_MASK) {
- uint64_t pml4e_addr, pml4e;
- int32_t sext;
-
- /* test virtual address sign extension */
- sext = (int64_t)addr >> 47;
- if (sext != 0 && sext != -1)
- return -1;
-
- pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
- env->a20_mask;
- pml4e = ldq_phys(pml4e_addr);
- if (!(pml4e & PG_PRESENT_MASK))
- return -1;
-
- pdpe_addr = ((pml4e & ~0xfff) + (((addr >> 30) & 0x1ff) << 3)) &
- env->a20_mask;
- pdpe = ldq_phys(pdpe_addr);
- if (!(pdpe & PG_PRESENT_MASK))
- return -1;
- } else
-#endif
- {
- pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
- env->a20_mask;
- pdpe = ldq_phys(pdpe_addr);
- if (!(pdpe & PG_PRESENT_MASK))
- return -1;
- }
-
- pde_addr = ((pdpe & ~0xfff) + (((addr >> 21) & 0x1ff) << 3)) &
- env->a20_mask;
- pde = ldq_phys(pde_addr);
- if (!(pde & PG_PRESENT_MASK)) {
- return -1;
- }
- if (pde & PG_PSE_MASK) {
- /* 2 MB page */
- page_size = 2048 * 1024;
- pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
- } else {
- /* 4 KB page */
- pte_addr = ((pde & ~0xfff) + (((addr >> 12) & 0x1ff) << 3)) &
- env->a20_mask;
- page_size = 4096;
- pte = ldq_phys(pte_addr);
- }
- } else {
- uint32_t pde;
-
- if (!(env->cr[0] & CR0_PG_MASK)) {
- pte = addr;
- page_size = 4096;
- } else {
- /* page directory entry */
- pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask;
- pde = ldl_phys(pde_addr);
- if (!(pde & PG_PRESENT_MASK))
- return -1;
- if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
- pte = pde & ~0x003ff000; /* align to 4MB */
- page_size = 4096 * 1024;
- } else {
- /* page directory entry */
- pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask;
- pte = ldl_phys(pte_addr);
- if (!(pte & PG_PRESENT_MASK))
- return -1;
- page_size = 4096;
- }
- }
- pte = pte & env->a20_mask;
- }
-
- page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
- paddr = (pte & TARGET_PAGE_MASK) + page_offset;
- return paddr;
-}
-#endif /* !CONFIG_USER_ONLY */
--- /dev/null
+/*
+ * i386 helpers
+ *
+ * Copyright (c) 2003 Fabrice Bellard
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#define CPU_NO_GLOBAL_REGS
+#include "exec.h"
+#include "host-utils.h"
+
+//#define DEBUG_PCALL
+
+#if 0
+#define raise_exception_err(a, b)\
+do {\
+ if (logfile)\
+ fprintf(logfile, "raise_exception line=%d\n", __LINE__);\
+ (raise_exception_err)(a, b);\
+} while (0)
+#endif
+
+const uint8_t parity_table[256] = {
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
+ 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
+};
+
+/* modulo 17 table */
+const uint8_t rclw_table[32] = {
+ 0, 1, 2, 3, 4, 5, 6, 7,
+ 8, 9,10,11,12,13,14,15,
+ 16, 0, 1, 2, 3, 4, 5, 6,
+ 7, 8, 9,10,11,12,13,14,
+};
+
+/* modulo 9 table */
+const uint8_t rclb_table[32] = {
+ 0, 1, 2, 3, 4, 5, 6, 7,
+ 8, 0, 1, 2, 3, 4, 5, 6,
+ 7, 8, 0, 1, 2, 3, 4, 5,
+ 6, 7, 8, 0, 1, 2, 3, 4,
+};
+
+const CPU86_LDouble f15rk[7] =
+{
+ 0.00000000000000000000L,
+ 1.00000000000000000000L,
+ 3.14159265358979323851L, /*pi*/
+ 0.30102999566398119523L, /*lg2*/
+ 0.69314718055994530943L, /*ln2*/
+ 1.44269504088896340739L, /*l2e*/
+ 3.32192809488736234781L, /*l2t*/
+};
+
+/* broken thread support */
+
+spinlock_t global_cpu_lock = SPIN_LOCK_UNLOCKED;
+
+void helper_lock(void)
+{
+ spin_lock(&global_cpu_lock);
+}
+
+void helper_unlock(void)
+{
+ spin_unlock(&global_cpu_lock);
+}
+
+void helper_write_eflags(target_ulong t0, uint32_t update_mask)
+{
+ load_eflags(t0, update_mask);
+}
+
+target_ulong helper_read_eflags(void)
+{
+ uint32_t eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ eflags |= (DF & DF_MASK);
+ eflags |= env->eflags & ~(VM_MASK | RF_MASK);
+ return eflags;
+}
+
+/* return non zero if error */
+static inline int load_segment(uint32_t *e1_ptr, uint32_t *e2_ptr,
+ int selector)
+{
+ SegmentCache *dt;
+ int index;
+ target_ulong ptr;
+
+ if (selector & 0x4)
+ dt = &env->ldt;
+ else
+ dt = &env->gdt;
+ index = selector & ~7;
+ if ((index + 7) > dt->limit)
+ return -1;
+ ptr = dt->base + index;
+ *e1_ptr = ldl_kernel(ptr);
+ *e2_ptr = ldl_kernel(ptr + 4);
+ return 0;
+}
+
+static inline unsigned int get_seg_limit(uint32_t e1, uint32_t e2)
+{
+ unsigned int limit;
+ limit = (e1 & 0xffff) | (e2 & 0x000f0000);
+ if (e2 & DESC_G_MASK)
+ limit = (limit << 12) | 0xfff;
+ return limit;
+}
+
+static inline uint32_t get_seg_base(uint32_t e1, uint32_t e2)
+{
+ return ((e1 >> 16) | ((e2 & 0xff) << 16) | (e2 & 0xff000000));
+}
+
+static inline void load_seg_cache_raw_dt(SegmentCache *sc, uint32_t e1, uint32_t e2)
+{
+ sc->base = get_seg_base(e1, e2);
+ sc->limit = get_seg_limit(e1, e2);
+ sc->flags = e2;
+}
+
+/* init the segment cache in vm86 mode. */
+static inline void load_seg_vm(int seg, int selector)
+{
+ selector &= 0xffff;
+ cpu_x86_load_seg_cache(env, seg, selector,
+ (selector << 4), 0xffff, 0);
+}
+
+static inline void get_ss_esp_from_tss(uint32_t *ss_ptr,
+ uint32_t *esp_ptr, int dpl)
+{
+ int type, index, shift;
+
+#if 0
+ {
+ int i;
+ printf("TR: base=%p limit=%x\n", env->tr.base, env->tr.limit);
+ for(i=0;i<env->tr.limit;i++) {
+ printf("%02x ", env->tr.base[i]);
+ if ((i & 7) == 7) printf("\n");
+ }
+ printf("\n");
+ }
+#endif
+
+ if (!(env->tr.flags & DESC_P_MASK))
+ cpu_abort(env, "invalid tss");
+ type = (env->tr.flags >> DESC_TYPE_SHIFT) & 0xf;
+ if ((type & 7) != 1)
+ cpu_abort(env, "invalid tss type");
+ shift = type >> 3;
+ index = (dpl * 4 + 2) << shift;
+ if (index + (4 << shift) - 1 > env->tr.limit)
+ raise_exception_err(EXCP0A_TSS, env->tr.selector & 0xfffc);
+ if (shift == 0) {
+ *esp_ptr = lduw_kernel(env->tr.base + index);
+ *ss_ptr = lduw_kernel(env->tr.base + index + 2);
+ } else {
+ *esp_ptr = ldl_kernel(env->tr.base + index);
+ *ss_ptr = lduw_kernel(env->tr.base + index + 4);
+ }
+}
+
+/* XXX: merge with load_seg() */
+static void tss_load_seg(int seg_reg, int selector)
+{
+ uint32_t e1, e2;
+ int rpl, dpl, cpl;
+
+ if ((selector & 0xfffc) != 0) {
+ if (load_segment(&e1, &e2, selector) != 0)
+ raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
+ if (!(e2 & DESC_S_MASK))
+ raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
+ rpl = selector & 3;
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ cpl = env->hflags & HF_CPL_MASK;
+ if (seg_reg == R_CS) {
+ if (!(e2 & DESC_CS_MASK))
+ raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
+ /* XXX: is it correct ? */
+ if (dpl != rpl)
+ raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
+ if ((e2 & DESC_C_MASK) && dpl > rpl)
+ raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
+ } else if (seg_reg == R_SS) {
+ /* SS must be writable data */
+ if ((e2 & DESC_CS_MASK) || !(e2 & DESC_W_MASK))
+ raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
+ if (dpl != cpl || dpl != rpl)
+ raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
+ } else {
+ /* not readable code */
+ if ((e2 & DESC_CS_MASK) && !(e2 & DESC_R_MASK))
+ raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
+ /* if data or non conforming code, checks the rights */
+ if (((e2 >> DESC_TYPE_SHIFT) & 0xf) < 12) {
+ if (dpl < cpl || dpl < rpl)
+ raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
+ }
+ }
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
+ cpu_x86_load_seg_cache(env, seg_reg, selector,
+ get_seg_base(e1, e2),
+ get_seg_limit(e1, e2),
+ e2);
+ } else {
+ if (seg_reg == R_SS || seg_reg == R_CS)
+ raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
+ }
+}
+
+#define SWITCH_TSS_JMP 0
+#define SWITCH_TSS_IRET 1
+#define SWITCH_TSS_CALL 2
+
+/* XXX: restore CPU state in registers (PowerPC case) */
+static void switch_tss(int tss_selector,
+ uint32_t e1, uint32_t e2, int source,
+ uint32_t next_eip)
+{
+ int tss_limit, tss_limit_max, type, old_tss_limit_max, old_type, v1, v2, i;
+ target_ulong tss_base;
+ uint32_t new_regs[8], new_segs[6];
+ uint32_t new_eflags, new_eip, new_cr3, new_ldt, new_trap;
+ uint32_t old_eflags, eflags_mask;
+ SegmentCache *dt;
+ int index;
+ target_ulong ptr;
+
+ type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
+#ifdef DEBUG_PCALL
+ if (loglevel & CPU_LOG_PCALL)
+ fprintf(logfile, "switch_tss: sel=0x%04x type=%d src=%d\n", tss_selector, type, source);
+#endif
+
+ /* if task gate, we read the TSS segment and we load it */
+ if (type == 5) {
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, tss_selector & 0xfffc);
+ tss_selector = e1 >> 16;
+ if (tss_selector & 4)
+ raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
+ if (load_segment(&e1, &e2, tss_selector) != 0)
+ raise_exception_err(EXCP0D_GPF, tss_selector & 0xfffc);
+ if (e2 & DESC_S_MASK)
+ raise_exception_err(EXCP0D_GPF, tss_selector & 0xfffc);
+ type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
+ if ((type & 7) != 1)
+ raise_exception_err(EXCP0D_GPF, tss_selector & 0xfffc);
+ }
+
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, tss_selector & 0xfffc);
+
+ if (type & 8)
+ tss_limit_max = 103;
+ else
+ tss_limit_max = 43;
+ tss_limit = get_seg_limit(e1, e2);
+ tss_base = get_seg_base(e1, e2);
+ if ((tss_selector & 4) != 0 ||
+ tss_limit < tss_limit_max)
+ raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
+ old_type = (env->tr.flags >> DESC_TYPE_SHIFT) & 0xf;
+ if (old_type & 8)
+ old_tss_limit_max = 103;
+ else
+ old_tss_limit_max = 43;
+
+ /* read all the registers from the new TSS */
+ if (type & 8) {
+ /* 32 bit */
+ new_cr3 = ldl_kernel(tss_base + 0x1c);
+ new_eip = ldl_kernel(tss_base + 0x20);
+ new_eflags = ldl_kernel(tss_base + 0x24);
+ for(i = 0; i < 8; i++)
+ new_regs[i] = ldl_kernel(tss_base + (0x28 + i * 4));
+ for(i = 0; i < 6; i++)
+ new_segs[i] = lduw_kernel(tss_base + (0x48 + i * 4));
+ new_ldt = lduw_kernel(tss_base + 0x60);
+ new_trap = ldl_kernel(tss_base + 0x64);
+ } else {
+ /* 16 bit */
+ new_cr3 = 0;
+ new_eip = lduw_kernel(tss_base + 0x0e);
+ new_eflags = lduw_kernel(tss_base + 0x10);
+ for(i = 0; i < 8; i++)
+ new_regs[i] = lduw_kernel(tss_base + (0x12 + i * 2)) | 0xffff0000;
+ for(i = 0; i < 4; i++)
+ new_segs[i] = lduw_kernel(tss_base + (0x22 + i * 4));
+ new_ldt = lduw_kernel(tss_base + 0x2a);
+ new_segs[R_FS] = 0;
+ new_segs[R_GS] = 0;
+ new_trap = 0;
+ }
+
+ /* NOTE: we must avoid memory exceptions during the task switch,
+ so we make dummy accesses before */
+ /* XXX: it can still fail in some cases, so a bigger hack is
+ necessary to valid the TLB after having done the accesses */
+
+ v1 = ldub_kernel(env->tr.base);
+ v2 = ldub_kernel(env->tr.base + old_tss_limit_max);
+ stb_kernel(env->tr.base, v1);
+ stb_kernel(env->tr.base + old_tss_limit_max, v2);
+
+ /* clear busy bit (it is restartable) */
+ if (source == SWITCH_TSS_JMP || source == SWITCH_TSS_IRET) {
+ target_ulong ptr;
+ uint32_t e2;
+ ptr = env->gdt.base + (env->tr.selector & ~7);
+ e2 = ldl_kernel(ptr + 4);
+ e2 &= ~DESC_TSS_BUSY_MASK;
+ stl_kernel(ptr + 4, e2);
+ }
+ old_eflags = compute_eflags();
+ if (source == SWITCH_TSS_IRET)
+ old_eflags &= ~NT_MASK;
+
+ /* save the current state in the old TSS */
+ if (type & 8) {
+ /* 32 bit */
+ stl_kernel(env->tr.base + 0x20, next_eip);
+ stl_kernel(env->tr.base + 0x24, old_eflags);
+ stl_kernel(env->tr.base + (0x28 + 0 * 4), EAX);
+ stl_kernel(env->tr.base + (0x28 + 1 * 4), ECX);
+ stl_kernel(env->tr.base + (0x28 + 2 * 4), EDX);
+ stl_kernel(env->tr.base + (0x28 + 3 * 4), EBX);
+ stl_kernel(env->tr.base + (0x28 + 4 * 4), ESP);
+ stl_kernel(env->tr.base + (0x28 + 5 * 4), EBP);
+ stl_kernel(env->tr.base + (0x28 + 6 * 4), ESI);
+ stl_kernel(env->tr.base + (0x28 + 7 * 4), EDI);
+ for(i = 0; i < 6; i++)
+ stw_kernel(env->tr.base + (0x48 + i * 4), env->segs[i].selector);
+ } else {
+ /* 16 bit */
+ stw_kernel(env->tr.base + 0x0e, next_eip);
+ stw_kernel(env->tr.base + 0x10, old_eflags);
+ stw_kernel(env->tr.base + (0x12 + 0 * 2), EAX);
+ stw_kernel(env->tr.base + (0x12 + 1 * 2), ECX);
+ stw_kernel(env->tr.base + (0x12 + 2 * 2), EDX);
+ stw_kernel(env->tr.base + (0x12 + 3 * 2), EBX);
+ stw_kernel(env->tr.base + (0x12 + 4 * 2), ESP);
+ stw_kernel(env->tr.base + (0x12 + 5 * 2), EBP);
+ stw_kernel(env->tr.base + (0x12 + 6 * 2), ESI);
+ stw_kernel(env->tr.base + (0x12 + 7 * 2), EDI);
+ for(i = 0; i < 4; i++)
+ stw_kernel(env->tr.base + (0x22 + i * 4), env->segs[i].selector);
+ }
+
+ /* now if an exception occurs, it will occurs in the next task
+ context */
+
+ if (source == SWITCH_TSS_CALL) {
+ stw_kernel(tss_base, env->tr.selector);
+ new_eflags |= NT_MASK;
+ }
+
+ /* set busy bit */
+ if (source == SWITCH_TSS_JMP || source == SWITCH_TSS_CALL) {
+ target_ulong ptr;
+ uint32_t e2;
+ ptr = env->gdt.base + (tss_selector & ~7);
+ e2 = ldl_kernel(ptr + 4);
+ e2 |= DESC_TSS_BUSY_MASK;
+ stl_kernel(ptr + 4, e2);
+ }
+
+ /* set the new CPU state */
+ /* from this point, any exception which occurs can give problems */
+ env->cr[0] |= CR0_TS_MASK;
+ env->hflags |= HF_TS_MASK;
+ env->tr.selector = tss_selector;
+ env->tr.base = tss_base;
+ env->tr.limit = tss_limit;
+ env->tr.flags = e2 & ~DESC_TSS_BUSY_MASK;
+
+ if ((type & 8) && (env->cr[0] & CR0_PG_MASK)) {
+ cpu_x86_update_cr3(env, new_cr3);
+ }
+
+ /* load all registers without an exception, then reload them with
+ possible exception */
+ env->eip = new_eip;
+ eflags_mask = TF_MASK | AC_MASK | ID_MASK |
+ IF_MASK | IOPL_MASK | VM_MASK | RF_MASK | NT_MASK;
+ if (!(type & 8))
+ eflags_mask &= 0xffff;
+ load_eflags(new_eflags, eflags_mask);
+ /* XXX: what to do in 16 bit case ? */
+ EAX = new_regs[0];
+ ECX = new_regs[1];
+ EDX = new_regs[2];
+ EBX = new_regs[3];
+ ESP = new_regs[4];
+ EBP = new_regs[5];
+ ESI = new_regs[6];
+ EDI = new_regs[7];
+ if (new_eflags & VM_MASK) {
+ for(i = 0; i < 6; i++)
+ load_seg_vm(i, new_segs[i]);
+ /* in vm86, CPL is always 3 */
+ cpu_x86_set_cpl(env, 3);
+ } else {
+ /* CPL is set the RPL of CS */
+ cpu_x86_set_cpl(env, new_segs[R_CS] & 3);
+ /* first just selectors as the rest may trigger exceptions */
+ for(i = 0; i < 6; i++)
+ cpu_x86_load_seg_cache(env, i, new_segs[i], 0, 0, 0);
+ }
+
+ env->ldt.selector = new_ldt & ~4;
+ env->ldt.base = 0;
+ env->ldt.limit = 0;
+ env->ldt.flags = 0;
+
+ /* load the LDT */
+ if (new_ldt & 4)
+ raise_exception_err(EXCP0A_TSS, new_ldt & 0xfffc);
+
+ if ((new_ldt & 0xfffc) != 0) {
+ dt = &env->gdt;
+ index = new_ldt & ~7;
+ if ((index + 7) > dt->limit)
+ raise_exception_err(EXCP0A_TSS, new_ldt & 0xfffc);
+ ptr = dt->base + index;
+ e1 = ldl_kernel(ptr);
+ e2 = ldl_kernel(ptr + 4);
+ if ((e2 & DESC_S_MASK) || ((e2 >> DESC_TYPE_SHIFT) & 0xf) != 2)
+ raise_exception_err(EXCP0A_TSS, new_ldt & 0xfffc);
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0A_TSS, new_ldt & 0xfffc);
+ load_seg_cache_raw_dt(&env->ldt, e1, e2);
+ }
+
+ /* load the segments */
+ if (!(new_eflags & VM_MASK)) {
+ tss_load_seg(R_CS, new_segs[R_CS]);
+ tss_load_seg(R_SS, new_segs[R_SS]);
+ tss_load_seg(R_ES, new_segs[R_ES]);
+ tss_load_seg(R_DS, new_segs[R_DS]);
+ tss_load_seg(R_FS, new_segs[R_FS]);
+ tss_load_seg(R_GS, new_segs[R_GS]);
+ }
+
+ /* check that EIP is in the CS segment limits */
+ if (new_eip > env->segs[R_CS].limit) {
+ /* XXX: different exception if CALL ? */
+ raise_exception_err(EXCP0D_GPF, 0);
+ }
+}
+
+/* check if Port I/O is allowed in TSS */
+static inline void check_io(int addr, int size)
+{
+ int io_offset, val, mask;
+
+ /* TSS must be a valid 32 bit one */
+ if (!(env->tr.flags & DESC_P_MASK) ||
+ ((env->tr.flags >> DESC_TYPE_SHIFT) & 0xf) != 9 ||
+ env->tr.limit < 103)
+ goto fail;
+ io_offset = lduw_kernel(env->tr.base + 0x66);
+ io_offset += (addr >> 3);
+ /* Note: the check needs two bytes */
+ if ((io_offset + 1) > env->tr.limit)
+ goto fail;
+ val = lduw_kernel(env->tr.base + io_offset);
+ val >>= (addr & 7);
+ mask = (1 << size) - 1;
+ /* all bits must be zero to allow the I/O */
+ if ((val & mask) != 0) {
+ fail:
+ raise_exception_err(EXCP0D_GPF, 0);
+ }
+}
+
+void helper_check_iob(uint32_t t0)
+{
+ check_io(t0, 1);
+}
+
+void helper_check_iow(uint32_t t0)
+{
+ check_io(t0, 2);
+}
+
+void helper_check_iol(uint32_t t0)
+{
+ check_io(t0, 4);
+}
+
+void helper_outb(uint32_t port, uint32_t data)
+{
+ cpu_outb(env, port, data & 0xff);
+}
+
+target_ulong helper_inb(uint32_t port)
+{
+ return cpu_inb(env, port);
+}
+
+void helper_outw(uint32_t port, uint32_t data)
+{
+ cpu_outw(env, port, data & 0xffff);
+}
+
+target_ulong helper_inw(uint32_t port)
+{
+ return cpu_inw(env, port);
+}
+
+void helper_outl(uint32_t port, uint32_t data)
+{
+ cpu_outl(env, port, data);
+}
+
+target_ulong helper_inl(uint32_t port)
+{
+ return cpu_inl(env, port);
+}
+
+static inline unsigned int get_sp_mask(unsigned int e2)
+{
+ if (e2 & DESC_B_MASK)
+ return 0xffffffff;
+ else
+ return 0xffff;
+}
+
+#ifdef TARGET_X86_64
+#define SET_ESP(val, sp_mask)\
+do {\
+ if ((sp_mask) == 0xffff)\
+ ESP = (ESP & ~0xffff) | ((val) & 0xffff);\
+ else if ((sp_mask) == 0xffffffffLL)\
+ ESP = (uint32_t)(val);\
+ else\
+ ESP = (val);\
+} while (0)
+#else
+#define SET_ESP(val, sp_mask) ESP = (ESP & ~(sp_mask)) | ((val) & (sp_mask))
+#endif
+
+/* XXX: add a is_user flag to have proper security support */
+#define PUSHW(ssp, sp, sp_mask, val)\
+{\
+ sp -= 2;\
+ stw_kernel((ssp) + (sp & (sp_mask)), (val));\
+}
+
+#define PUSHL(ssp, sp, sp_mask, val)\
+{\
+ sp -= 4;\
+ stl_kernel((ssp) + (sp & (sp_mask)), (val));\
+}
+
+#define POPW(ssp, sp, sp_mask, val)\
+{\
+ val = lduw_kernel((ssp) + (sp & (sp_mask)));\
+ sp += 2;\
+}
+
+#define POPL(ssp, sp, sp_mask, val)\
+{\
+ val = (uint32_t)ldl_kernel((ssp) + (sp & (sp_mask)));\
+ sp += 4;\
+}
+
+/* protected mode interrupt */
+static void do_interrupt_protected(int intno, int is_int, int error_code,
+ unsigned int next_eip, int is_hw)
+{
+ SegmentCache *dt;
+ target_ulong ptr, ssp;
+ int type, dpl, selector, ss_dpl, cpl;
+ int has_error_code, new_stack, shift;
+ uint32_t e1, e2, offset, ss, esp, ss_e1, ss_e2;
+ uint32_t old_eip, sp_mask;
+ int svm_should_check = 1;
+
+ if ((env->intercept & INTERCEPT_SVM_MASK) && !is_int && next_eip==-1) {
+ next_eip = EIP;
+ svm_should_check = 0;
+ }
+
+ if (svm_should_check
+ && (INTERCEPTEDl(_exceptions, 1 << intno)
+ && !is_int)) {
+ raise_interrupt(intno, is_int, error_code, 0);
+ }
+ has_error_code = 0;
+ if (!is_int && !is_hw) {
+ switch(intno) {
+ case 8:
+ case 10:
+ case 11:
+ case 12:
+ case 13:
+ case 14:
+ case 17:
+ has_error_code = 1;
+ break;
+ }
+ }
+ if (is_int)
+ old_eip = next_eip;
+ else
+ old_eip = env->eip;
+
+ dt = &env->idt;
+ if (intno * 8 + 7 > dt->limit)
+ raise_exception_err(EXCP0D_GPF, intno * 8 + 2);
+ ptr = dt->base + intno * 8;
+ e1 = ldl_kernel(ptr);
+ e2 = ldl_kernel(ptr + 4);
+ /* check gate type */
+ type = (e2 >> DESC_TYPE_SHIFT) & 0x1f;
+ switch(type) {
+ case 5: /* task gate */
+ /* must do that check here to return the correct error code */
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, intno * 8 + 2);
+ switch_tss(intno * 8, e1, e2, SWITCH_TSS_CALL, old_eip);
+ if (has_error_code) {
+ int type;
+ uint32_t mask;
+ /* push the error code */
+ type = (env->tr.flags >> DESC_TYPE_SHIFT) & 0xf;
+ shift = type >> 3;
+ if (env->segs[R_SS].flags & DESC_B_MASK)
+ mask = 0xffffffff;
+ else
+ mask = 0xffff;
+ esp = (ESP - (2 << shift)) & mask;
+ ssp = env->segs[R_SS].base + esp;
+ if (shift)
+ stl_kernel(ssp, error_code);
+ else
+ stw_kernel(ssp, error_code);
+ SET_ESP(esp, mask);
+ }
+ return;
+ case 6: /* 286 interrupt gate */
+ case 7: /* 286 trap gate */
+ case 14: /* 386 interrupt gate */
+ case 15: /* 386 trap gate */
+ break;
+ default:
+ raise_exception_err(EXCP0D_GPF, intno * 8 + 2);
+ break;
+ }
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ cpl = env->hflags & HF_CPL_MASK;
+ /* check privledge if software int */
+ if (is_int && dpl < cpl)
+ raise_exception_err(EXCP0D_GPF, intno * 8 + 2);
+ /* check valid bit */
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, intno * 8 + 2);
+ selector = e1 >> 16;
+ offset = (e2 & 0xffff0000) | (e1 & 0x0000ffff);
+ if ((selector & 0xfffc) == 0)
+ raise_exception_err(EXCP0D_GPF, 0);
+
+ if (load_segment(&e1, &e2, selector) != 0)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK)))
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ if (dpl > cpl)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
+ if (!(e2 & DESC_C_MASK) && dpl < cpl) {
+ /* to inner privilege */
+ get_ss_esp_from_tss(&ss, &esp, dpl);
+ if ((ss & 0xfffc) == 0)
+ raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
+ if ((ss & 3) != dpl)
+ raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
+ if (load_segment(&ss_e1, &ss_e2, ss) != 0)
+ raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
+ ss_dpl = (ss_e2 >> DESC_DPL_SHIFT) & 3;
+ if (ss_dpl != dpl)
+ raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
+ if (!(ss_e2 & DESC_S_MASK) ||
+ (ss_e2 & DESC_CS_MASK) ||
+ !(ss_e2 & DESC_W_MASK))
+ raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
+ if (!(ss_e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
+ new_stack = 1;
+ sp_mask = get_sp_mask(ss_e2);
+ ssp = get_seg_base(ss_e1, ss_e2);
+ } else if ((e2 & DESC_C_MASK) || dpl == cpl) {
+ /* to same privilege */
+ if (env->eflags & VM_MASK)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ new_stack = 0;
+ sp_mask = get_sp_mask(env->segs[R_SS].flags);
+ ssp = env->segs[R_SS].base;
+ esp = ESP;
+ dpl = cpl;
+ } else {
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ new_stack = 0; /* avoid warning */
+ sp_mask = 0; /* avoid warning */
+ ssp = 0; /* avoid warning */
+ esp = 0; /* avoid warning */
+ }
+
+ shift = type >> 3;
+
+#if 0
+ /* XXX: check that enough room is available */
+ push_size = 6 + (new_stack << 2) + (has_error_code << 1);
+ if (env->eflags & VM_MASK)
+ push_size += 8;
+ push_size <<= shift;
+#endif
+ if (shift == 1) {
+ if (new_stack) {
+ if (env->eflags & VM_MASK) {
+ PUSHL(ssp, esp, sp_mask, env->segs[R_GS].selector);
+ PUSHL(ssp, esp, sp_mask, env->segs[R_FS].selector);
+ PUSHL(ssp, esp, sp_mask, env->segs[R_DS].selector);
+ PUSHL(ssp, esp, sp_mask, env->segs[R_ES].selector);
+ }
+ PUSHL(ssp, esp, sp_mask, env->segs[R_SS].selector);
+ PUSHL(ssp, esp, sp_mask, ESP);
+ }
+ PUSHL(ssp, esp, sp_mask, compute_eflags());
+ PUSHL(ssp, esp, sp_mask, env->segs[R_CS].selector);
+ PUSHL(ssp, esp, sp_mask, old_eip);
+ if (has_error_code) {
+ PUSHL(ssp, esp, sp_mask, error_code);
+ }
+ } else {
+ if (new_stack) {
+ if (env->eflags & VM_MASK) {
+ PUSHW(ssp, esp, sp_mask, env->segs[R_GS].selector);
+ PUSHW(ssp, esp, sp_mask, env->segs[R_FS].selector);
+ PUSHW(ssp, esp, sp_mask, env->segs[R_DS].selector);
+ PUSHW(ssp, esp, sp_mask, env->segs[R_ES].selector);
+ }
+ PUSHW(ssp, esp, sp_mask, env->segs[R_SS].selector);
+ PUSHW(ssp, esp, sp_mask, ESP);
+ }
+ PUSHW(ssp, esp, sp_mask, compute_eflags());
+ PUSHW(ssp, esp, sp_mask, env->segs[R_CS].selector);
+ PUSHW(ssp, esp, sp_mask, old_eip);
+ if (has_error_code) {
+ PUSHW(ssp, esp, sp_mask, error_code);
+ }
+ }
+
+ if (new_stack) {
+ if (env->eflags & VM_MASK) {
+ cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0, 0);
+ cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0, 0);
+ cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0, 0);
+ cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0, 0);
+ }
+ ss = (ss & ~3) | dpl;
+ cpu_x86_load_seg_cache(env, R_SS, ss,
+ ssp, get_seg_limit(ss_e1, ss_e2), ss_e2);
+ }
+ SET_ESP(esp, sp_mask);
+
+ selector = (selector & ~3) | dpl;
+ cpu_x86_load_seg_cache(env, R_CS, selector,
+ get_seg_base(e1, e2),
+ get_seg_limit(e1, e2),
+ e2);
+ cpu_x86_set_cpl(env, dpl);
+ env->eip = offset;
+
+ /* interrupt gate clear IF mask */
+ if ((type & 1) == 0) {
+ env->eflags &= ~IF_MASK;
+ }
+ env->eflags &= ~(TF_MASK | VM_MASK | RF_MASK | NT_MASK);
+}
+
+#ifdef TARGET_X86_64
+
+#define PUSHQ(sp, val)\
+{\
+ sp -= 8;\
+ stq_kernel(sp, (val));\
+}
+
+#define POPQ(sp, val)\
+{\
+ val = ldq_kernel(sp);\
+ sp += 8;\
+}
+
+static inline target_ulong get_rsp_from_tss(int level)
+{
+ int index;
+
+#if 0
+ printf("TR: base=" TARGET_FMT_lx " limit=%x\n",
+ env->tr.base, env->tr.limit);
+#endif
+
+ if (!(env->tr.flags & DESC_P_MASK))
+ cpu_abort(env, "invalid tss");
+ index = 8 * level + 4;
+ if ((index + 7) > env->tr.limit)
+ raise_exception_err(EXCP0A_TSS, env->tr.selector & 0xfffc);
+ return ldq_kernel(env->tr.base + index);
+}
+
+/* 64 bit interrupt */
+static void do_interrupt64(int intno, int is_int, int error_code,
+ target_ulong next_eip, int is_hw)
+{
+ SegmentCache *dt;
+ target_ulong ptr;
+ int type, dpl, selector, cpl, ist;
+ int has_error_code, new_stack;
+ uint32_t e1, e2, e3, ss;
+ target_ulong old_eip, esp, offset;
+ int svm_should_check = 1;
+
+ if ((env->intercept & INTERCEPT_SVM_MASK) && !is_int && next_eip==-1) {
+ next_eip = EIP;
+ svm_should_check = 0;
+ }
+ if (svm_should_check
+ && INTERCEPTEDl(_exceptions, 1 << intno)
+ && !is_int) {
+ raise_interrupt(intno, is_int, error_code, 0);
+ }
+ has_error_code = 0;
+ if (!is_int && !is_hw) {
+ switch(intno) {
+ case 8:
+ case 10:
+ case 11:
+ case 12:
+ case 13:
+ case 14:
+ case 17:
+ has_error_code = 1;
+ break;
+ }
+ }
+ if (is_int)
+ old_eip = next_eip;
+ else
+ old_eip = env->eip;
+
+ dt = &env->idt;
+ if (intno * 16 + 15 > dt->limit)
+ raise_exception_err(EXCP0D_GPF, intno * 16 + 2);
+ ptr = dt->base + intno * 16;
+ e1 = ldl_kernel(ptr);
+ e2 = ldl_kernel(ptr + 4);
+ e3 = ldl_kernel(ptr + 8);
+ /* check gate type */
+ type = (e2 >> DESC_TYPE_SHIFT) & 0x1f;
+ switch(type) {
+ case 14: /* 386 interrupt gate */
+ case 15: /* 386 trap gate */
+ break;
+ default:
+ raise_exception_err(EXCP0D_GPF, intno * 16 + 2);
+ break;
+ }
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ cpl = env->hflags & HF_CPL_MASK;
+ /* check privledge if software int */
+ if (is_int && dpl < cpl)
+ raise_exception_err(EXCP0D_GPF, intno * 16 + 2);
+ /* check valid bit */
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, intno * 16 + 2);
+ selector = e1 >> 16;
+ offset = ((target_ulong)e3 << 32) | (e2 & 0xffff0000) | (e1 & 0x0000ffff);
+ ist = e2 & 7;
+ if ((selector & 0xfffc) == 0)
+ raise_exception_err(EXCP0D_GPF, 0);
+
+ if (load_segment(&e1, &e2, selector) != 0)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK)))
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ if (dpl > cpl)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
+ if (!(e2 & DESC_L_MASK) || (e2 & DESC_B_MASK))
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ if ((!(e2 & DESC_C_MASK) && dpl < cpl) || ist != 0) {
+ /* to inner privilege */
+ if (ist != 0)
+ esp = get_rsp_from_tss(ist + 3);
+ else
+ esp = get_rsp_from_tss(dpl);
+ esp &= ~0xfLL; /* align stack */
+ ss = 0;
+ new_stack = 1;
+ } else if ((e2 & DESC_C_MASK) || dpl == cpl) {
+ /* to same privilege */
+ if (env->eflags & VM_MASK)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ new_stack = 0;
+ if (ist != 0)
+ esp = get_rsp_from_tss(ist + 3);
+ else
+ esp = ESP;
+ esp &= ~0xfLL; /* align stack */
+ dpl = cpl;
+ } else {
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ new_stack = 0; /* avoid warning */
+ esp = 0; /* avoid warning */
+ }
+
+ PUSHQ(esp, env->segs[R_SS].selector);
+ PUSHQ(esp, ESP);
+ PUSHQ(esp, compute_eflags());
+ PUSHQ(esp, env->segs[R_CS].selector);
+ PUSHQ(esp, old_eip);
+ if (has_error_code) {
+ PUSHQ(esp, error_code);
+ }
+
+ if (new_stack) {
+ ss = 0 | dpl;
+ cpu_x86_load_seg_cache(env, R_SS, ss, 0, 0, 0);
+ }
+ ESP = esp;
+
+ selector = (selector & ~3) | dpl;
+ cpu_x86_load_seg_cache(env, R_CS, selector,
+ get_seg_base(e1, e2),
+ get_seg_limit(e1, e2),
+ e2);
+ cpu_x86_set_cpl(env, dpl);
+ env->eip = offset;
+
+ /* interrupt gate clear IF mask */
+ if ((type & 1) == 0) {
+ env->eflags &= ~IF_MASK;
+ }
+ env->eflags &= ~(TF_MASK | VM_MASK | RF_MASK | NT_MASK);
+}
+#endif
+
+#if defined(CONFIG_USER_ONLY)
+void helper_syscall(int next_eip_addend)
+{
+ env->exception_index = EXCP_SYSCALL;
+ env->exception_next_eip = env->eip + next_eip_addend;
+ cpu_loop_exit();
+}
+#else
+void helper_syscall(int next_eip_addend)
+{
+ int selector;
+
+ if (!(env->efer & MSR_EFER_SCE)) {
+ raise_exception_err(EXCP06_ILLOP, 0);
+ }
+ selector = (env->star >> 32) & 0xffff;
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_LMA_MASK) {
+ int code64;
+
+ ECX = env->eip + next_eip_addend;
+ env->regs[11] = compute_eflags();
+
+ code64 = env->hflags & HF_CS64_MASK;
+
+ cpu_x86_set_cpl(env, 0);
+ cpu_x86_load_seg_cache(env, R_CS, selector & 0xfffc,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_P_MASK |
+ DESC_S_MASK |
+ DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK | DESC_L_MASK);
+ cpu_x86_load_seg_cache(env, R_SS, (selector + 8) & 0xfffc,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
+ DESC_S_MASK |
+ DESC_W_MASK | DESC_A_MASK);
+ env->eflags &= ~env->fmask;
+ load_eflags(env->eflags, 0);
+ if (code64)
+ env->eip = env->lstar;
+ else
+ env->eip = env->cstar;
+ } else
+#endif
+ {
+ ECX = (uint32_t)(env->eip + next_eip_addend);
+
+ cpu_x86_set_cpl(env, 0);
+ cpu_x86_load_seg_cache(env, R_CS, selector & 0xfffc,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
+ DESC_S_MASK |
+ DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK);
+ cpu_x86_load_seg_cache(env, R_SS, (selector + 8) & 0xfffc,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
+ DESC_S_MASK |
+ DESC_W_MASK | DESC_A_MASK);
+ env->eflags &= ~(IF_MASK | RF_MASK | VM_MASK);
+ env->eip = (uint32_t)env->star;
+ }
+}
+#endif
+
+void helper_sysret(int dflag)
+{
+ int cpl, selector;
+
+ if (!(env->efer & MSR_EFER_SCE)) {
+ raise_exception_err(EXCP06_ILLOP, 0);
+ }
+ cpl = env->hflags & HF_CPL_MASK;
+ if (!(env->cr[0] & CR0_PE_MASK) || cpl != 0) {
+ raise_exception_err(EXCP0D_GPF, 0);
+ }
+ selector = (env->star >> 48) & 0xffff;
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_LMA_MASK) {
+ if (dflag == 2) {
+ cpu_x86_load_seg_cache(env, R_CS, (selector + 16) | 3,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_P_MASK |
+ DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
+ DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK |
+ DESC_L_MASK);
+ env->eip = ECX;
+ } else {
+ cpu_x86_load_seg_cache(env, R_CS, selector | 3,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
+ DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
+ DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK);
+ env->eip = (uint32_t)ECX;
+ }
+ cpu_x86_load_seg_cache(env, R_SS, selector + 8,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
+ DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
+ DESC_W_MASK | DESC_A_MASK);
+ load_eflags((uint32_t)(env->regs[11]), TF_MASK | AC_MASK | ID_MASK |
+ IF_MASK | IOPL_MASK | VM_MASK | RF_MASK | NT_MASK);
+ cpu_x86_set_cpl(env, 3);
+ } else
+#endif
+ {
+ cpu_x86_load_seg_cache(env, R_CS, selector | 3,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
+ DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
+ DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK);
+ env->eip = (uint32_t)ECX;
+ cpu_x86_load_seg_cache(env, R_SS, selector + 8,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
+ DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
+ DESC_W_MASK | DESC_A_MASK);
+ env->eflags |= IF_MASK;
+ cpu_x86_set_cpl(env, 3);
+ }
+#ifdef USE_KQEMU
+ if (kqemu_is_ok(env)) {
+ if (env->hflags & HF_LMA_MASK)
+ CC_OP = CC_OP_EFLAGS;
+ env->exception_index = -1;
+ cpu_loop_exit();
+ }
+#endif
+}
+
+/* real mode interrupt */
+static void do_interrupt_real(int intno, int is_int, int error_code,
+ unsigned int next_eip)
+{
+ SegmentCache *dt;
+ target_ulong ptr, ssp;
+ int selector;
+ uint32_t offset, esp;
+ uint32_t old_cs, old_eip;
+ int svm_should_check = 1;
+
+ if ((env->intercept & INTERCEPT_SVM_MASK) && !is_int && next_eip==-1) {
+ next_eip = EIP;
+ svm_should_check = 0;
+ }
+ if (svm_should_check
+ && INTERCEPTEDl(_exceptions, 1 << intno)
+ && !is_int) {
+ raise_interrupt(intno, is_int, error_code, 0);
+ }
+ /* real mode (simpler !) */
+ dt = &env->idt;
+ if (intno * 4 + 3 > dt->limit)
+ raise_exception_err(EXCP0D_GPF, intno * 8 + 2);
+ ptr = dt->base + intno * 4;
+ offset = lduw_kernel(ptr);
+ selector = lduw_kernel(ptr + 2);
+ esp = ESP;
+ ssp = env->segs[R_SS].base;
+ if (is_int)
+ old_eip = next_eip;
+ else
+ old_eip = env->eip;
+ old_cs = env->segs[R_CS].selector;
+ /* XXX: use SS segment size ? */
+ PUSHW(ssp, esp, 0xffff, compute_eflags());
+ PUSHW(ssp, esp, 0xffff, old_cs);
+ PUSHW(ssp, esp, 0xffff, old_eip);
+
+ /* update processor state */
+ ESP = (ESP & ~0xffff) | (esp & 0xffff);
+ env->eip = offset;
+ env->segs[R_CS].selector = selector;
+ env->segs[R_CS].base = (selector << 4);
+ env->eflags &= ~(IF_MASK | TF_MASK | AC_MASK | RF_MASK);
+}
+
+/* fake user mode interrupt */
+void do_interrupt_user(int intno, int is_int, int error_code,
+ target_ulong next_eip)
+{
+ SegmentCache *dt;
+ target_ulong ptr;
+ int dpl, cpl, shift;
+ uint32_t e2;
+
+ dt = &env->idt;
+ if (env->hflags & HF_LMA_MASK) {
+ shift = 4;
+ } else {
+ shift = 3;
+ }
+ ptr = dt->base + (intno << shift);
+ e2 = ldl_kernel(ptr + 4);
+
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ cpl = env->hflags & HF_CPL_MASK;
+ /* check privledge if software int */
+ if (is_int && dpl < cpl)
+ raise_exception_err(EXCP0D_GPF, (intno << shift) + 2);
+
+ /* Since we emulate only user space, we cannot do more than
+ exiting the emulation with the suitable exception and error
+ code */
+ if (is_int)
+ EIP = next_eip;
+}
+
+/*
+ * Begin execution of an interruption. is_int is TRUE if coming from
+ * the int instruction. next_eip is the EIP value AFTER the interrupt
+ * instruction. It is only relevant if is_int is TRUE.
+ */
+void do_interrupt(int intno, int is_int, int error_code,
+ target_ulong next_eip, int is_hw)
+{
+ if (loglevel & CPU_LOG_INT) {
+ if ((env->cr[0] & CR0_PE_MASK)) {
+ static int count;
+ fprintf(logfile, "%6d: v=%02x e=%04x i=%d cpl=%d IP=%04x:" TARGET_FMT_lx " pc=" TARGET_FMT_lx " SP=%04x:" TARGET_FMT_lx,
+ count, intno, error_code, is_int,
+ env->hflags & HF_CPL_MASK,
+ env->segs[R_CS].selector, EIP,
+ (int)env->segs[R_CS].base + EIP,
+ env->segs[R_SS].selector, ESP);
+ if (intno == 0x0e) {
+ fprintf(logfile, " CR2=" TARGET_FMT_lx, env->cr[2]);
+ } else {
+ fprintf(logfile, " EAX=" TARGET_FMT_lx, EAX);
+ }
+ fprintf(logfile, "\n");
+ cpu_dump_state(env, logfile, fprintf, X86_DUMP_CCOP);
+#if 0
+ {
+ int i;
+ uint8_t *ptr;
+ fprintf(logfile, " code=");
+ ptr = env->segs[R_CS].base + env->eip;
+ for(i = 0; i < 16; i++) {
+ fprintf(logfile, " %02x", ldub(ptr + i));
+ }
+ fprintf(logfile, "\n");
+ }
+#endif
+ count++;
+ }
+ }
+ if (env->cr[0] & CR0_PE_MASK) {
+#if TARGET_X86_64
+ if (env->hflags & HF_LMA_MASK) {
+ do_interrupt64(intno, is_int, error_code, next_eip, is_hw);
+ } else
+#endif
+ {
+ do_interrupt_protected(intno, is_int, error_code, next_eip, is_hw);
+ }
+ } else {
+ do_interrupt_real(intno, is_int, error_code, next_eip);
+ }
+}
+
+/*
+ * Check nested exceptions and change to double or triple fault if
+ * needed. It should only be called, if this is not an interrupt.
+ * Returns the new exception number.
+ */
+static int check_exception(int intno, int *error_code)
+{
+ int first_contributory = env->old_exception == 0 ||
+ (env->old_exception >= 10 &&
+ env->old_exception <= 13);
+ int second_contributory = intno == 0 ||
+ (intno >= 10 && intno <= 13);
+
+ if (loglevel & CPU_LOG_INT)
+ fprintf(logfile, "check_exception old: 0x%x new 0x%x\n",
+ env->old_exception, intno);
+
+ if (env->old_exception == EXCP08_DBLE)
+ cpu_abort(env, "triple fault");
+
+ if ((first_contributory && second_contributory)
+ || (env->old_exception == EXCP0E_PAGE &&
+ (second_contributory || (intno == EXCP0E_PAGE)))) {
+ intno = EXCP08_DBLE;
+ *error_code = 0;
+ }
+
+ if (second_contributory || (intno == EXCP0E_PAGE) ||
+ (intno == EXCP08_DBLE))
+ env->old_exception = intno;
+
+ return intno;
+}
+
+/*
+ * Signal an interruption. It is executed in the main CPU loop.
+ * is_int is TRUE if coming from the int instruction. next_eip is the
+ * EIP value AFTER the interrupt instruction. It is only relevant if
+ * is_int is TRUE.
+ */
+void raise_interrupt(int intno, int is_int, int error_code,
+ int next_eip_addend)
+{
+ if (!is_int) {
+ helper_svm_check_intercept_param(SVM_EXIT_EXCP_BASE + intno, error_code);
+ intno = check_exception(intno, &error_code);
+ }
+
+ env->exception_index = intno;
+ env->error_code = error_code;
+ env->exception_is_int = is_int;
+ env->exception_next_eip = env->eip + next_eip_addend;
+ cpu_loop_exit();
+}
+
+/* same as raise_exception_err, but do not restore global registers */
+static void raise_exception_err_norestore(int exception_index, int error_code)
+{
+ exception_index = check_exception(exception_index, &error_code);
+
+ env->exception_index = exception_index;
+ env->error_code = error_code;
+ env->exception_is_int = 0;
+ env->exception_next_eip = 0;
+ longjmp(env->jmp_env, 1);
+}
+
+/* shortcuts to generate exceptions */
+
+void (raise_exception_err)(int exception_index, int error_code)
+{
+ raise_interrupt(exception_index, 0, error_code, 0);
+}
+
+void raise_exception(int exception_index)
+{
+ raise_interrupt(exception_index, 0, 0, 0);
+}
+
+/* SMM support */
+
+#if defined(CONFIG_USER_ONLY)
+
+void do_smm_enter(void)
+{
+}
+
+void helper_rsm(void)
+{
+}
+
+#else
+
+#ifdef TARGET_X86_64
+#define SMM_REVISION_ID 0x00020064
+#else
+#define SMM_REVISION_ID 0x00020000
+#endif
+
+void do_smm_enter(void)
+{
+ target_ulong sm_state;
+ SegmentCache *dt;
+ int i, offset;
+
+ if (loglevel & CPU_LOG_INT) {
+ fprintf(logfile, "SMM: enter\n");
+ cpu_dump_state(env, logfile, fprintf, X86_DUMP_CCOP);
+ }
+
+ env->hflags |= HF_SMM_MASK;
+ cpu_smm_update(env);
+
+ sm_state = env->smbase + 0x8000;
+
+#ifdef TARGET_X86_64
+ for(i = 0; i < 6; i++) {
+ dt = &env->segs[i];
+ offset = 0x7e00 + i * 16;
+ stw_phys(sm_state + offset, dt->selector);
+ stw_phys(sm_state + offset + 2, (dt->flags >> 8) & 0xf0ff);
+ stl_phys(sm_state + offset + 4, dt->limit);
+ stq_phys(sm_state + offset + 8, dt->base);
+ }
+
+ stq_phys(sm_state + 0x7e68, env->gdt.base);
+ stl_phys(sm_state + 0x7e64, env->gdt.limit);
+
+ stw_phys(sm_state + 0x7e70, env->ldt.selector);
+ stq_phys(sm_state + 0x7e78, env->ldt.base);
+ stl_phys(sm_state + 0x7e74, env->ldt.limit);
+ stw_phys(sm_state + 0x7e72, (env->ldt.flags >> 8) & 0xf0ff);
+
+ stq_phys(sm_state + 0x7e88, env->idt.base);
+ stl_phys(sm_state + 0x7e84, env->idt.limit);
+
+ stw_phys(sm_state + 0x7e90, env->tr.selector);
+ stq_phys(sm_state + 0x7e98, env->tr.base);
+ stl_phys(sm_state + 0x7e94, env->tr.limit);
+ stw_phys(sm_state + 0x7e92, (env->tr.flags >> 8) & 0xf0ff);
+
+ stq_phys(sm_state + 0x7ed0, env->efer);
+
+ stq_phys(sm_state + 0x7ff8, EAX);
+ stq_phys(sm_state + 0x7ff0, ECX);
+ stq_phys(sm_state + 0x7fe8, EDX);
+ stq_phys(sm_state + 0x7fe0, EBX);
+ stq_phys(sm_state + 0x7fd8, ESP);
+ stq_phys(sm_state + 0x7fd0, EBP);
+ stq_phys(sm_state + 0x7fc8, ESI);
+ stq_phys(sm_state + 0x7fc0, EDI);
+ for(i = 8; i < 16; i++)
+ stq_phys(sm_state + 0x7ff8 - i * 8, env->regs[i]);
+ stq_phys(sm_state + 0x7f78, env->eip);
+ stl_phys(sm_state + 0x7f70, compute_eflags());
+ stl_phys(sm_state + 0x7f68, env->dr[6]);
+ stl_phys(sm_state + 0x7f60, env->dr[7]);
+
+ stl_phys(sm_state + 0x7f48, env->cr[4]);
+ stl_phys(sm_state + 0x7f50, env->cr[3]);
+ stl_phys(sm_state + 0x7f58, env->cr[0]);
+
+ stl_phys(sm_state + 0x7efc, SMM_REVISION_ID);
+ stl_phys(sm_state + 0x7f00, env->smbase);
+#else
+ stl_phys(sm_state + 0x7ffc, env->cr[0]);
+ stl_phys(sm_state + 0x7ff8, env->cr[3]);
+ stl_phys(sm_state + 0x7ff4, compute_eflags());
+ stl_phys(sm_state + 0x7ff0, env->eip);
+ stl_phys(sm_state + 0x7fec, EDI);
+ stl_phys(sm_state + 0x7fe8, ESI);
+ stl_phys(sm_state + 0x7fe4, EBP);
+ stl_phys(sm_state + 0x7fe0, ESP);
+ stl_phys(sm_state + 0x7fdc, EBX);
+ stl_phys(sm_state + 0x7fd8, EDX);
+ stl_phys(sm_state + 0x7fd4, ECX);
+ stl_phys(sm_state + 0x7fd0, EAX);
+ stl_phys(sm_state + 0x7fcc, env->dr[6]);
+ stl_phys(sm_state + 0x7fc8, env->dr[7]);
+
+ stl_phys(sm_state + 0x7fc4, env->tr.selector);
+ stl_phys(sm_state + 0x7f64, env->tr.base);
+ stl_phys(sm_state + 0x7f60, env->tr.limit);
+ stl_phys(sm_state + 0x7f5c, (env->tr.flags >> 8) & 0xf0ff);
+
+ stl_phys(sm_state + 0x7fc0, env->ldt.selector);
+ stl_phys(sm_state + 0x7f80, env->ldt.base);
+ stl_phys(sm_state + 0x7f7c, env->ldt.limit);
+ stl_phys(sm_state + 0x7f78, (env->ldt.flags >> 8) & 0xf0ff);
+
+ stl_phys(sm_state + 0x7f74, env->gdt.base);
+ stl_phys(sm_state + 0x7f70, env->gdt.limit);
+
+ stl_phys(sm_state + 0x7f58, env->idt.base);
+ stl_phys(sm_state + 0x7f54, env->idt.limit);
+
+ for(i = 0; i < 6; i++) {
+ dt = &env->segs[i];
+ if (i < 3)
+ offset = 0x7f84 + i * 12;
+ else
+ offset = 0x7f2c + (i - 3) * 12;
+ stl_phys(sm_state + 0x7fa8 + i * 4, dt->selector);
+ stl_phys(sm_state + offset + 8, dt->base);
+ stl_phys(sm_state + offset + 4, dt->limit);
+ stl_phys(sm_state + offset, (dt->flags >> 8) & 0xf0ff);
+ }
+ stl_phys(sm_state + 0x7f14, env->cr[4]);
+
+ stl_phys(sm_state + 0x7efc, SMM_REVISION_ID);
+ stl_phys(sm_state + 0x7ef8, env->smbase);
+#endif
+ /* init SMM cpu state */
+
+#ifdef TARGET_X86_64
+ env->efer = 0;
+ env->hflags &= ~HF_LMA_MASK;
+#endif
+ load_eflags(0, ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
+ env->eip = 0x00008000;
+ cpu_x86_load_seg_cache(env, R_CS, (env->smbase >> 4) & 0xffff, env->smbase,
+ 0xffffffff, 0);
+ cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffffffff, 0);
+ cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffffffff, 0);
+ cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffffffff, 0);
+ cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffffffff, 0);
+ cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffffffff, 0);
+
+ cpu_x86_update_cr0(env,
+ env->cr[0] & ~(CR0_PE_MASK | CR0_EM_MASK | CR0_TS_MASK | CR0_PG_MASK));
+ cpu_x86_update_cr4(env, 0);
+ env->dr[7] = 0x00000400;
+ CC_OP = CC_OP_EFLAGS;
+}
+
+void helper_rsm(void)
+{
+ target_ulong sm_state;
+ int i, offset;
+ uint32_t val;
+
+ sm_state = env->smbase + 0x8000;
+#ifdef TARGET_X86_64
+ env->efer = ldq_phys(sm_state + 0x7ed0);
+ if (env->efer & MSR_EFER_LMA)
+ env->hflags |= HF_LMA_MASK;
+ else
+ env->hflags &= ~HF_LMA_MASK;
+
+ for(i = 0; i < 6; i++) {
+ offset = 0x7e00 + i * 16;
+ cpu_x86_load_seg_cache(env, i,
+ lduw_phys(sm_state + offset),
+ ldq_phys(sm_state + offset + 8),
+ ldl_phys(sm_state + offset + 4),
+ (lduw_phys(sm_state + offset + 2) & 0xf0ff) << 8);
+ }
+
+ env->gdt.base = ldq_phys(sm_state + 0x7e68);
+ env->gdt.limit = ldl_phys(sm_state + 0x7e64);
+
+ env->ldt.selector = lduw_phys(sm_state + 0x7e70);
+ env->ldt.base = ldq_phys(sm_state + 0x7e78);
+ env->ldt.limit = ldl_phys(sm_state + 0x7e74);
+ env->ldt.flags = (lduw_phys(sm_state + 0x7e72) & 0xf0ff) << 8;
+
+ env->idt.base = ldq_phys(sm_state + 0x7e88);
+ env->idt.limit = ldl_phys(sm_state + 0x7e84);
+
+ env->tr.selector = lduw_phys(sm_state + 0x7e90);
+ env->tr.base = ldq_phys(sm_state + 0x7e98);
+ env->tr.limit = ldl_phys(sm_state + 0x7e94);
+ env->tr.flags = (lduw_phys(sm_state + 0x7e92) & 0xf0ff) << 8;
+
+ EAX = ldq_phys(sm_state + 0x7ff8);
+ ECX = ldq_phys(sm_state + 0x7ff0);
+ EDX = ldq_phys(sm_state + 0x7fe8);
+ EBX = ldq_phys(sm_state + 0x7fe0);
+ ESP = ldq_phys(sm_state + 0x7fd8);
+ EBP = ldq_phys(sm_state + 0x7fd0);
+ ESI = ldq_phys(sm_state + 0x7fc8);
+ EDI = ldq_phys(sm_state + 0x7fc0);
+ for(i = 8; i < 16; i++)
+ env->regs[i] = ldq_phys(sm_state + 0x7ff8 - i * 8);
+ env->eip = ldq_phys(sm_state + 0x7f78);
+ load_eflags(ldl_phys(sm_state + 0x7f70),
+ ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
+ env->dr[6] = ldl_phys(sm_state + 0x7f68);
+ env->dr[7] = ldl_phys(sm_state + 0x7f60);
+
+ cpu_x86_update_cr4(env, ldl_phys(sm_state + 0x7f48));
+ cpu_x86_update_cr3(env, ldl_phys(sm_state + 0x7f50));
+ cpu_x86_update_cr0(env, ldl_phys(sm_state + 0x7f58));
+
+ val = ldl_phys(sm_state + 0x7efc); /* revision ID */
+ if (val & 0x20000) {
+ env->smbase = ldl_phys(sm_state + 0x7f00) & ~0x7fff;
+ }
+#else
+ cpu_x86_update_cr0(env, ldl_phys(sm_state + 0x7ffc));
+ cpu_x86_update_cr3(env, ldl_phys(sm_state + 0x7ff8));
+ load_eflags(ldl_phys(sm_state + 0x7ff4),
+ ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
+ env->eip = ldl_phys(sm_state + 0x7ff0);
+ EDI = ldl_phys(sm_state + 0x7fec);
+ ESI = ldl_phys(sm_state + 0x7fe8);
+ EBP = ldl_phys(sm_state + 0x7fe4);
+ ESP = ldl_phys(sm_state + 0x7fe0);
+ EBX = ldl_phys(sm_state + 0x7fdc);
+ EDX = ldl_phys(sm_state + 0x7fd8);
+ ECX = ldl_phys(sm_state + 0x7fd4);
+ EAX = ldl_phys(sm_state + 0x7fd0);
+ env->dr[6] = ldl_phys(sm_state + 0x7fcc);
+ env->dr[7] = ldl_phys(sm_state + 0x7fc8);
+
+ env->tr.selector = ldl_phys(sm_state + 0x7fc4) & 0xffff;
+ env->tr.base = ldl_phys(sm_state + 0x7f64);
+ env->tr.limit = ldl_phys(sm_state + 0x7f60);
+ env->tr.flags = (ldl_phys(sm_state + 0x7f5c) & 0xf0ff) << 8;
+
+ env->ldt.selector = ldl_phys(sm_state + 0x7fc0) & 0xffff;
+ env->ldt.base = ldl_phys(sm_state + 0x7f80);
+ env->ldt.limit = ldl_phys(sm_state + 0x7f7c);
+ env->ldt.flags = (ldl_phys(sm_state + 0x7f78) & 0xf0ff) << 8;
+
+ env->gdt.base = ldl_phys(sm_state + 0x7f74);
+ env->gdt.limit = ldl_phys(sm_state + 0x7f70);
+
+ env->idt.base = ldl_phys(sm_state + 0x7f58);
+ env->idt.limit = ldl_phys(sm_state + 0x7f54);
+
+ for(i = 0; i < 6; i++) {
+ if (i < 3)
+ offset = 0x7f84 + i * 12;
+ else
+ offset = 0x7f2c + (i - 3) * 12;
+ cpu_x86_load_seg_cache(env, i,
+ ldl_phys(sm_state + 0x7fa8 + i * 4) & 0xffff,
+ ldl_phys(sm_state + offset + 8),
+ ldl_phys(sm_state + offset + 4),
+ (ldl_phys(sm_state + offset) & 0xf0ff) << 8);
+ }
+ cpu_x86_update_cr4(env, ldl_phys(sm_state + 0x7f14));
+
+ val = ldl_phys(sm_state + 0x7efc); /* revision ID */
+ if (val & 0x20000) {
+ env->smbase = ldl_phys(sm_state + 0x7ef8) & ~0x7fff;
+ }
+#endif
+ CC_OP = CC_OP_EFLAGS;
+ env->hflags &= ~HF_SMM_MASK;
+ cpu_smm_update(env);
+
+ if (loglevel & CPU_LOG_INT) {
+ fprintf(logfile, "SMM: after RSM\n");
+ cpu_dump_state(env, logfile, fprintf, X86_DUMP_CCOP);
+ }
+}
+
+#endif /* !CONFIG_USER_ONLY */
+
+
+/* division, flags are undefined */
+
+void helper_divb_AL(target_ulong t0)
+{
+ unsigned int num, den, q, r;
+
+ num = (EAX & 0xffff);
+ den = (t0 & 0xff);
+ if (den == 0) {
+ raise_exception(EXCP00_DIVZ);
+ }
+ q = (num / den);
+ if (q > 0xff)
+ raise_exception(EXCP00_DIVZ);
+ q &= 0xff;
+ r = (num % den) & 0xff;
+ EAX = (EAX & ~0xffff) | (r << 8) | q;
+}
+
+void helper_idivb_AL(target_ulong t0)
+{
+ int num, den, q, r;
+
+ num = (int16_t)EAX;
+ den = (int8_t)t0;
+ if (den == 0) {
+ raise_exception(EXCP00_DIVZ);
+ }
+ q = (num / den);
+ if (q != (int8_t)q)
+ raise_exception(EXCP00_DIVZ);
+ q &= 0xff;
+ r = (num % den) & 0xff;
+ EAX = (EAX & ~0xffff) | (r << 8) | q;
+}
+
+void helper_divw_AX(target_ulong t0)
+{
+ unsigned int num, den, q, r;
+
+ num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
+ den = (t0 & 0xffff);
+ if (den == 0) {
+ raise_exception(EXCP00_DIVZ);
+ }
+ q = (num / den);
+ if (q > 0xffff)
+ raise_exception(EXCP00_DIVZ);
+ q &= 0xffff;
+ r = (num % den) & 0xffff;
+ EAX = (EAX & ~0xffff) | q;
+ EDX = (EDX & ~0xffff) | r;
+}
+
+void helper_idivw_AX(target_ulong t0)
+{
+ int num, den, q, r;
+
+ num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
+ den = (int16_t)t0;
+ if (den == 0) {
+ raise_exception(EXCP00_DIVZ);
+ }
+ q = (num / den);
+ if (q != (int16_t)q)
+ raise_exception(EXCP00_DIVZ);
+ q &= 0xffff;
+ r = (num % den) & 0xffff;
+ EAX = (EAX & ~0xffff) | q;
+ EDX = (EDX & ~0xffff) | r;
+}
+
+void helper_divl_EAX(target_ulong t0)
+{
+ unsigned int den, r;
+ uint64_t num, q;
+
+ num = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
+ den = t0;
+ if (den == 0) {
+ raise_exception(EXCP00_DIVZ);
+ }
+ q = (num / den);
+ r = (num % den);
+ if (q > 0xffffffff)
+ raise_exception(EXCP00_DIVZ);
+ EAX = (uint32_t)q;
+ EDX = (uint32_t)r;
+}
+
+void helper_idivl_EAX(target_ulong t0)
+{
+ int den, r;
+ int64_t num, q;
+
+ num = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
+ den = t0;
+ if (den == 0) {
+ raise_exception(EXCP00_DIVZ);
+ }
+ q = (num / den);
+ r = (num % den);
+ if (q != (int32_t)q)
+ raise_exception(EXCP00_DIVZ);
+ EAX = (uint32_t)q;
+ EDX = (uint32_t)r;
+}
+
+/* bcd */
+
+/* XXX: exception */
+void helper_aam(int base)
+{
+ int al, ah;
+ al = EAX & 0xff;
+ ah = al / base;
+ al = al % base;
+ EAX = (EAX & ~0xffff) | al | (ah << 8);
+ CC_DST = al;
+}
+
+void helper_aad(int base)
+{
+ int al, ah;
+ al = EAX & 0xff;
+ ah = (EAX >> 8) & 0xff;
+ al = ((ah * base) + al) & 0xff;
+ EAX = (EAX & ~0xffff) | al;
+ CC_DST = al;
+}
+
+void helper_aaa(void)
+{
+ int icarry;
+ int al, ah, af;
+ int eflags;
+
+ eflags = cc_table[CC_OP].compute_all();
+ af = eflags & CC_A;
+ al = EAX & 0xff;
+ ah = (EAX >> 8) & 0xff;
+
+ icarry = (al > 0xf9);
+ if (((al & 0x0f) > 9 ) || af) {
+ al = (al + 6) & 0x0f;
+ ah = (ah + 1 + icarry) & 0xff;
+ eflags |= CC_C | CC_A;
+ } else {
+ eflags &= ~(CC_C | CC_A);
+ al &= 0x0f;
+ }
+ EAX = (EAX & ~0xffff) | al | (ah << 8);
+ CC_SRC = eflags;
+ FORCE_RET();
+}
+
+void helper_aas(void)
+{
+ int icarry;
+ int al, ah, af;
+ int eflags;
+
+ eflags = cc_table[CC_OP].compute_all();
+ af = eflags & CC_A;
+ al = EAX & 0xff;
+ ah = (EAX >> 8) & 0xff;
+
+ icarry = (al < 6);
+ if (((al & 0x0f) > 9 ) || af) {
+ al = (al - 6) & 0x0f;
+ ah = (ah - 1 - icarry) & 0xff;
+ eflags |= CC_C | CC_A;
+ } else {
+ eflags &= ~(CC_C | CC_A);
+ al &= 0x0f;
+ }
+ EAX = (EAX & ~0xffff) | al | (ah << 8);
+ CC_SRC = eflags;
+ FORCE_RET();
+}
+
+void helper_daa(void)
+{
+ int al, af, cf;
+ int eflags;
+
+ eflags = cc_table[CC_OP].compute_all();
+ cf = eflags & CC_C;
+ af = eflags & CC_A;
+ al = EAX & 0xff;
+
+ eflags = 0;
+ if (((al & 0x0f) > 9 ) || af) {
+ al = (al + 6) & 0xff;
+ eflags |= CC_A;
+ }
+ if ((al > 0x9f) || cf) {
+ al = (al + 0x60) & 0xff;
+ eflags |= CC_C;
+ }
+ EAX = (EAX & ~0xff) | al;
+ /* well, speed is not an issue here, so we compute the flags by hand */
+ eflags |= (al == 0) << 6; /* zf */
+ eflags |= parity_table[al]; /* pf */
+ eflags |= (al & 0x80); /* sf */
+ CC_SRC = eflags;
+ FORCE_RET();
+}
+
+void helper_das(void)
+{
+ int al, al1, af, cf;
+ int eflags;
+
+ eflags = cc_table[CC_OP].compute_all();
+ cf = eflags & CC_C;
+ af = eflags & CC_A;
+ al = EAX & 0xff;
+
+ eflags = 0;
+ al1 = al;
+ if (((al & 0x0f) > 9 ) || af) {
+ eflags |= CC_A;
+ if (al < 6 || cf)
+ eflags |= CC_C;
+ al = (al - 6) & 0xff;
+ }
+ if ((al1 > 0x99) || cf) {
+ al = (al - 0x60) & 0xff;
+ eflags |= CC_C;
+ }
+ EAX = (EAX & ~0xff) | al;
+ /* well, speed is not an issue here, so we compute the flags by hand */
+ eflags |= (al == 0) << 6; /* zf */
+ eflags |= parity_table[al]; /* pf */
+ eflags |= (al & 0x80); /* sf */
+ CC_SRC = eflags;
+ FORCE_RET();
+}
+
+void helper_into(int next_eip_addend)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ if (eflags & CC_O) {
+ raise_interrupt(EXCP04_INTO, 1, 0, next_eip_addend);
+ }
+}
+
+void helper_cmpxchg8b(target_ulong a0)
+{
+ uint64_t d;
+ int eflags;
+
+ eflags = cc_table[CC_OP].compute_all();
+ d = ldq(a0);
+ if (d == (((uint64_t)EDX << 32) | (uint32_t)EAX)) {
+ stq(a0, ((uint64_t)ECX << 32) | (uint32_t)EBX);
+ eflags |= CC_Z;
+ } else {
+ EDX = (uint32_t)(d >> 32);
+ EAX = (uint32_t)d;
+ eflags &= ~CC_Z;
+ }
+ CC_SRC = eflags;
+}
+
+#ifdef TARGET_X86_64
+void helper_cmpxchg16b(target_ulong a0)
+{
+ uint64_t d0, d1;
+ int eflags;
+
+ eflags = cc_table[CC_OP].compute_all();
+ d0 = ldq(a0);
+ d1 = ldq(a0 + 8);
+ if (d0 == EAX && d1 == EDX) {
+ stq(a0, EBX);
+ stq(a0 + 8, ECX);
+ eflags |= CC_Z;
+ } else {
+ EDX = d1;
+ EAX = d0;
+ eflags &= ~CC_Z;
+ }
+ CC_SRC = eflags;
+}
+#endif
+
+void helper_single_step(void)
+{
+ env->dr[6] |= 0x4000;
+ raise_exception(EXCP01_SSTP);
+}
+
+void helper_cpuid(void)
+{
+ uint32_t index;
+ index = (uint32_t)EAX;
+
+ /* test if maximum index reached */
+ if (index & 0x80000000) {
+ if (index > env->cpuid_xlevel)
+ index = env->cpuid_level;
+ } else {
+ if (index > env->cpuid_level)
+ index = env->cpuid_level;
+ }
+
+ switch(index) {
+ case 0:
+ EAX = env->cpuid_level;
+ EBX = env->cpuid_vendor1;
+ EDX = env->cpuid_vendor2;
+ ECX = env->cpuid_vendor3;
+ break;
+ case 1:
+ EAX = env->cpuid_version;
+ EBX = (env->cpuid_apic_id << 24) | 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
+ ECX = env->cpuid_ext_features;
+ EDX = env->cpuid_features;
+ break;
+ case 2:
+ /* cache info: needed for Pentium Pro compatibility */
+ EAX = 1;
+ EBX = 0;
+ ECX = 0;
+ EDX = 0x2c307d;
+ break;
+ case 0x80000000:
+ EAX = env->cpuid_xlevel;
+ EBX = env->cpuid_vendor1;
+ EDX = env->cpuid_vendor2;
+ ECX = env->cpuid_vendor3;
+ break;
+ case 0x80000001:
+ EAX = env->cpuid_features;
+ EBX = 0;
+ ECX = env->cpuid_ext3_features;
+ EDX = env->cpuid_ext2_features;
+ break;
+ case 0x80000002:
+ case 0x80000003:
+ case 0x80000004:
+ EAX = env->cpuid_model[(index - 0x80000002) * 4 + 0];
+ EBX = env->cpuid_model[(index - 0x80000002) * 4 + 1];
+ ECX = env->cpuid_model[(index - 0x80000002) * 4 + 2];
+ EDX = env->cpuid_model[(index - 0x80000002) * 4 + 3];
+ break;
+ case 0x80000005:
+ /* cache info (L1 cache) */
+ EAX = 0x01ff01ff;
+ EBX = 0x01ff01ff;
+ ECX = 0x40020140;
+ EDX = 0x40020140;
+ break;
+ case 0x80000006:
+ /* cache info (L2 cache) */
+ EAX = 0;
+ EBX = 0x42004200;
+ ECX = 0x02008140;
+ EDX = 0;
+ break;
+ case 0x80000008:
+ /* virtual & phys address size in low 2 bytes. */
+/* XXX: This value must match the one used in the MMU code. */
+#if defined(TARGET_X86_64)
+# if defined(USE_KQEMU)
+ EAX = 0x00003020; /* 48 bits virtual, 32 bits physical */
+# else
+/* XXX: The physical address space is limited to 42 bits in exec.c. */
+ EAX = 0x00003028; /* 48 bits virtual, 40 bits physical */
+# endif
+#else
+# if defined(USE_KQEMU)
+ EAX = 0x00000020; /* 32 bits physical */
+# else
+ EAX = 0x00000024; /* 36 bits physical */
+# endif
+#endif
+ EBX = 0;
+ ECX = 0;
+ EDX = 0;
+ break;
+ case 0x8000000A:
+ EAX = 0x00000001;
+ EBX = 0;
+ ECX = 0;
+ EDX = 0;
+ break;
+ default:
+ /* reserved values: zero */
+ EAX = 0;
+ EBX = 0;
+ ECX = 0;
+ EDX = 0;
+ break;
+ }
+}
+
+void helper_enter_level(int level, int data32, target_ulong t1)
+{
+ target_ulong ssp;
+ uint32_t esp_mask, esp, ebp;
+
+ esp_mask = get_sp_mask(env->segs[R_SS].flags);
+ ssp = env->segs[R_SS].base;
+ ebp = EBP;
+ esp = ESP;
+ if (data32) {
+ /* 32 bit */
+ esp -= 4;
+ while (--level) {
+ esp -= 4;
+ ebp -= 4;
+ stl(ssp + (esp & esp_mask), ldl(ssp + (ebp & esp_mask)));
+ }
+ esp -= 4;
+ stl(ssp + (esp & esp_mask), t1);
+ } else {
+ /* 16 bit */
+ esp -= 2;
+ while (--level) {
+ esp -= 2;
+ ebp -= 2;
+ stw(ssp + (esp & esp_mask), lduw(ssp + (ebp & esp_mask)));
+ }
+ esp -= 2;
+ stw(ssp + (esp & esp_mask), t1);
+ }
+}
+
+#ifdef TARGET_X86_64
+void helper_enter64_level(int level, int data64, target_ulong t1)
+{
+ target_ulong esp, ebp;
+ ebp = EBP;
+ esp = ESP;
+
+ if (data64) {
+ /* 64 bit */
+ esp -= 8;
+ while (--level) {
+ esp -= 8;
+ ebp -= 8;
+ stq(esp, ldq(ebp));
+ }
+ esp -= 8;
+ stq(esp, t1);
+ } else {
+ /* 16 bit */
+ esp -= 2;
+ while (--level) {
+ esp -= 2;
+ ebp -= 2;
+ stw(esp, lduw(ebp));
+ }
+ esp -= 2;
+ stw(esp, t1);
+ }
+}
+#endif
+
+void helper_lldt(int selector)
+{
+ SegmentCache *dt;
+ uint32_t e1, e2;
+ int index, entry_limit;
+ target_ulong ptr;
+
+ selector &= 0xffff;
+ if ((selector & 0xfffc) == 0) {
+ /* XXX: NULL selector case: invalid LDT */
+ env->ldt.base = 0;
+ env->ldt.limit = 0;
+ } else {
+ if (selector & 0x4)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ dt = &env->gdt;
+ index = selector & ~7;
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_LMA_MASK)
+ entry_limit = 15;
+ else
+#endif
+ entry_limit = 7;
+ if ((index + entry_limit) > dt->limit)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ ptr = dt->base + index;
+ e1 = ldl_kernel(ptr);
+ e2 = ldl_kernel(ptr + 4);
+ if ((e2 & DESC_S_MASK) || ((e2 >> DESC_TYPE_SHIFT) & 0xf) != 2)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_LMA_MASK) {
+ uint32_t e3;
+ e3 = ldl_kernel(ptr + 8);
+ load_seg_cache_raw_dt(&env->ldt, e1, e2);
+ env->ldt.base |= (target_ulong)e3 << 32;
+ } else
+#endif
+ {
+ load_seg_cache_raw_dt(&env->ldt, e1, e2);
+ }
+ }
+ env->ldt.selector = selector;
+}
+
+void helper_ltr(int selector)
+{
+ SegmentCache *dt;
+ uint32_t e1, e2;
+ int index, type, entry_limit;
+ target_ulong ptr;
+
+ selector &= 0xffff;
+ if ((selector & 0xfffc) == 0) {
+ /* NULL selector case: invalid TR */
+ env->tr.base = 0;
+ env->tr.limit = 0;
+ env->tr.flags = 0;
+ } else {
+ if (selector & 0x4)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ dt = &env->gdt;
+ index = selector & ~7;
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_LMA_MASK)
+ entry_limit = 15;
+ else
+#endif
+ entry_limit = 7;
+ if ((index + entry_limit) > dt->limit)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ ptr = dt->base + index;
+ e1 = ldl_kernel(ptr);
+ e2 = ldl_kernel(ptr + 4);
+ type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
+ if ((e2 & DESC_S_MASK) ||
+ (type != 1 && type != 9))
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_LMA_MASK) {
+ uint32_t e3, e4;
+ e3 = ldl_kernel(ptr + 8);
+ e4 = ldl_kernel(ptr + 12);
+ if ((e4 >> DESC_TYPE_SHIFT) & 0xf)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ load_seg_cache_raw_dt(&env->tr, e1, e2);
+ env->tr.base |= (target_ulong)e3 << 32;
+ } else
+#endif
+ {
+ load_seg_cache_raw_dt(&env->tr, e1, e2);
+ }
+ e2 |= DESC_TSS_BUSY_MASK;
+ stl_kernel(ptr + 4, e2);
+ }
+ env->tr.selector = selector;
+}
+
+/* only works if protected mode and not VM86. seg_reg must be != R_CS */
+void helper_load_seg(int seg_reg, int selector)
+{
+ uint32_t e1, e2;
+ int cpl, dpl, rpl;
+ SegmentCache *dt;
+ int index;
+ target_ulong ptr;
+
+ selector &= 0xffff;
+ cpl = env->hflags & HF_CPL_MASK;
+ if ((selector & 0xfffc) == 0) {
+ /* null selector case */
+ if (seg_reg == R_SS
+#ifdef TARGET_X86_64
+ && (!(env->hflags & HF_CS64_MASK) || cpl == 3)
+#endif
+ )
+ raise_exception_err(EXCP0D_GPF, 0);
+ cpu_x86_load_seg_cache(env, seg_reg, selector, 0, 0, 0);
+ } else {
+
+ if (selector & 0x4)
+ dt = &env->ldt;
+ else
+ dt = &env->gdt;
+ index = selector & ~7;
+ if ((index + 7) > dt->limit)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ ptr = dt->base + index;
+ e1 = ldl_kernel(ptr);
+ e2 = ldl_kernel(ptr + 4);
+
+ if (!(e2 & DESC_S_MASK))
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ rpl = selector & 3;
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ if (seg_reg == R_SS) {
+ /* must be writable segment */
+ if ((e2 & DESC_CS_MASK) || !(e2 & DESC_W_MASK))
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ if (rpl != cpl || dpl != cpl)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ } else {
+ /* must be readable segment */
+ if ((e2 & (DESC_CS_MASK | DESC_R_MASK)) == DESC_CS_MASK)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+
+ if (!(e2 & DESC_CS_MASK) || !(e2 & DESC_C_MASK)) {
+ /* if not conforming code, test rights */
+ if (dpl < cpl || dpl < rpl)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ }
+ }
+
+ if (!(e2 & DESC_P_MASK)) {
+ if (seg_reg == R_SS)
+ raise_exception_err(EXCP0C_STACK, selector & 0xfffc);
+ else
+ raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
+ }
+
+ /* set the access bit if not already set */
+ if (!(e2 & DESC_A_MASK)) {
+ e2 |= DESC_A_MASK;
+ stl_kernel(ptr + 4, e2);
+ }
+
+ cpu_x86_load_seg_cache(env, seg_reg, selector,
+ get_seg_base(e1, e2),
+ get_seg_limit(e1, e2),
+ e2);
+#if 0
+ fprintf(logfile, "load_seg: sel=0x%04x base=0x%08lx limit=0x%08lx flags=%08x\n",
+ selector, (unsigned long)sc->base, sc->limit, sc->flags);
+#endif
+ }
+}
+
+/* protected mode jump */
+void helper_ljmp_protected(int new_cs, target_ulong new_eip,
+ int next_eip_addend)
+{
+ int gate_cs, type;
+ uint32_t e1, e2, cpl, dpl, rpl, limit;
+ target_ulong next_eip;
+
+ if ((new_cs & 0xfffc) == 0)
+ raise_exception_err(EXCP0D_GPF, 0);
+ if (load_segment(&e1, &e2, new_cs) != 0)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ cpl = env->hflags & HF_CPL_MASK;
+ if (e2 & DESC_S_MASK) {
+ if (!(e2 & DESC_CS_MASK))
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ if (e2 & DESC_C_MASK) {
+ /* conforming code segment */
+ if (dpl > cpl)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ } else {
+ /* non conforming code segment */
+ rpl = new_cs & 3;
+ if (rpl > cpl)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ if (dpl != cpl)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ }
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
+ limit = get_seg_limit(e1, e2);
+ if (new_eip > limit &&
+ !(env->hflags & HF_LMA_MASK) && !(e2 & DESC_L_MASK))
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl,
+ get_seg_base(e1, e2), limit, e2);
+ EIP = new_eip;
+ } else {
+ /* jump to call or task gate */
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ rpl = new_cs & 3;
+ cpl = env->hflags & HF_CPL_MASK;
+ type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
+ switch(type) {
+ case 1: /* 286 TSS */
+ case 9: /* 386 TSS */
+ case 5: /* task gate */
+ if (dpl < cpl || dpl < rpl)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ next_eip = env->eip + next_eip_addend;
+ switch_tss(new_cs, e1, e2, SWITCH_TSS_JMP, next_eip);
+ CC_OP = CC_OP_EFLAGS;
+ break;
+ case 4: /* 286 call gate */
+ case 12: /* 386 call gate */
+ if ((dpl < cpl) || (dpl < rpl))
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
+ gate_cs = e1 >> 16;
+ new_eip = (e1 & 0xffff);
+ if (type == 12)
+ new_eip |= (e2 & 0xffff0000);
+ if (load_segment(&e1, &e2, gate_cs) != 0)
+ raise_exception_err(EXCP0D_GPF, gate_cs & 0xfffc);
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ /* must be code segment */
+ if (((e2 & (DESC_S_MASK | DESC_CS_MASK)) !=
+ (DESC_S_MASK | DESC_CS_MASK)))
+ raise_exception_err(EXCP0D_GPF, gate_cs & 0xfffc);
+ if (((e2 & DESC_C_MASK) && (dpl > cpl)) ||
+ (!(e2 & DESC_C_MASK) && (dpl != cpl)))
+ raise_exception_err(EXCP0D_GPF, gate_cs & 0xfffc);
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0D_GPF, gate_cs & 0xfffc);
+ limit = get_seg_limit(e1, e2);
+ if (new_eip > limit)
+ raise_exception_err(EXCP0D_GPF, 0);
+ cpu_x86_load_seg_cache(env, R_CS, (gate_cs & 0xfffc) | cpl,
+ get_seg_base(e1, e2), limit, e2);
+ EIP = new_eip;
+ break;
+ default:
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ break;
+ }
+ }
+}
+
+/* real mode call */
+void helper_lcall_real(int new_cs, target_ulong new_eip1,
+ int shift, int next_eip)
+{
+ int new_eip;
+ uint32_t esp, esp_mask;
+ target_ulong ssp;
+
+ new_eip = new_eip1;
+ esp = ESP;
+ esp_mask = get_sp_mask(env->segs[R_SS].flags);
+ ssp = env->segs[R_SS].base;
+ if (shift) {
+ PUSHL(ssp, esp, esp_mask, env->segs[R_CS].selector);
+ PUSHL(ssp, esp, esp_mask, next_eip);
+ } else {
+ PUSHW(ssp, esp, esp_mask, env->segs[R_CS].selector);
+ PUSHW(ssp, esp, esp_mask, next_eip);
+ }
+
+ SET_ESP(esp, esp_mask);
+ env->eip = new_eip;
+ env->segs[R_CS].selector = new_cs;
+ env->segs[R_CS].base = (new_cs << 4);
+}
+
+/* protected mode call */
+void helper_lcall_protected(int new_cs, target_ulong new_eip,
+ int shift, int next_eip_addend)
+{
+ int new_stack, i;
+ uint32_t e1, e2, cpl, dpl, rpl, selector, offset, param_count;
+ uint32_t ss, ss_e1, ss_e2, sp, type, ss_dpl, sp_mask;
+ uint32_t val, limit, old_sp_mask;
+ target_ulong ssp, old_ssp, next_eip;
+
+ next_eip = env->eip + next_eip_addend;
+#ifdef DEBUG_PCALL
+ if (loglevel & CPU_LOG_PCALL) {
+ fprintf(logfile, "lcall %04x:%08x s=%d\n",
+ new_cs, (uint32_t)new_eip, shift);
+ cpu_dump_state(env, logfile, fprintf, X86_DUMP_CCOP);
+ }
+#endif
+ if ((new_cs & 0xfffc) == 0)
+ raise_exception_err(EXCP0D_GPF, 0);
+ if (load_segment(&e1, &e2, new_cs) != 0)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ cpl = env->hflags & HF_CPL_MASK;
+#ifdef DEBUG_PCALL
+ if (loglevel & CPU_LOG_PCALL) {
+ fprintf(logfile, "desc=%08x:%08x\n", e1, e2);
+ }
+#endif
+ if (e2 & DESC_S_MASK) {
+ if (!(e2 & DESC_CS_MASK))
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ if (e2 & DESC_C_MASK) {
+ /* conforming code segment */
+ if (dpl > cpl)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ } else {
+ /* non conforming code segment */
+ rpl = new_cs & 3;
+ if (rpl > cpl)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ if (dpl != cpl)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ }
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
+
+#ifdef TARGET_X86_64
+ /* XXX: check 16/32 bit cases in long mode */
+ if (shift == 2) {
+ target_ulong rsp;
+ /* 64 bit case */
+ rsp = ESP;
+ PUSHQ(rsp, env->segs[R_CS].selector);
+ PUSHQ(rsp, next_eip);
+ /* from this point, not restartable */
+ ESP = rsp;
+ cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl,
+ get_seg_base(e1, e2),
+ get_seg_limit(e1, e2), e2);
+ EIP = new_eip;
+ } else
+#endif
+ {
+ sp = ESP;
+ sp_mask = get_sp_mask(env->segs[R_SS].flags);
+ ssp = env->segs[R_SS].base;
+ if (shift) {
+ PUSHL(ssp, sp, sp_mask, env->segs[R_CS].selector);
+ PUSHL(ssp, sp, sp_mask, next_eip);
+ } else {
+ PUSHW(ssp, sp, sp_mask, env->segs[R_CS].selector);
+ PUSHW(ssp, sp, sp_mask, next_eip);
+ }
+
+ limit = get_seg_limit(e1, e2);
+ if (new_eip > limit)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ /* from this point, not restartable */
+ SET_ESP(sp, sp_mask);
+ cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl,
+ get_seg_base(e1, e2), limit, e2);
+ EIP = new_eip;
+ }
+ } else {
+ /* check gate type */
+ type = (e2 >> DESC_TYPE_SHIFT) & 0x1f;
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ rpl = new_cs & 3;
+ switch(type) {
+ case 1: /* available 286 TSS */
+ case 9: /* available 386 TSS */
+ case 5: /* task gate */
+ if (dpl < cpl || dpl < rpl)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ switch_tss(new_cs, e1, e2, SWITCH_TSS_CALL, next_eip);
+ CC_OP = CC_OP_EFLAGS;
+ return;
+ case 4: /* 286 call gate */
+ case 12: /* 386 call gate */
+ break;
+ default:
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ break;
+ }
+ shift = type >> 3;
+
+ if (dpl < cpl || dpl < rpl)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ /* check valid bit */
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
+ selector = e1 >> 16;
+ offset = (e2 & 0xffff0000) | (e1 & 0x0000ffff);
+ param_count = e2 & 0x1f;
+ if ((selector & 0xfffc) == 0)
+ raise_exception_err(EXCP0D_GPF, 0);
+
+ if (load_segment(&e1, &e2, selector) != 0)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK)))
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ if (dpl > cpl)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
+
+ if (!(e2 & DESC_C_MASK) && dpl < cpl) {
+ /* to inner privilege */
+ get_ss_esp_from_tss(&ss, &sp, dpl);
+#ifdef DEBUG_PCALL
+ if (loglevel & CPU_LOG_PCALL)
+ fprintf(logfile, "new ss:esp=%04x:%08x param_count=%d ESP=" TARGET_FMT_lx "\n",
+ ss, sp, param_count, ESP);
+#endif
+ if ((ss & 0xfffc) == 0)
+ raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
+ if ((ss & 3) != dpl)
+ raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
+ if (load_segment(&ss_e1, &ss_e2, ss) != 0)
+ raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
+ ss_dpl = (ss_e2 >> DESC_DPL_SHIFT) & 3;
+ if (ss_dpl != dpl)
+ raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
+ if (!(ss_e2 & DESC_S_MASK) ||
+ (ss_e2 & DESC_CS_MASK) ||
+ !(ss_e2 & DESC_W_MASK))
+ raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
+ if (!(ss_e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
+
+ // push_size = ((param_count * 2) + 8) << shift;
+
+ old_sp_mask = get_sp_mask(env->segs[R_SS].flags);
+ old_ssp = env->segs[R_SS].base;
+
+ sp_mask = get_sp_mask(ss_e2);
+ ssp = get_seg_base(ss_e1, ss_e2);
+ if (shift) {
+ PUSHL(ssp, sp, sp_mask, env->segs[R_SS].selector);
+ PUSHL(ssp, sp, sp_mask, ESP);
+ for(i = param_count - 1; i >= 0; i--) {
+ val = ldl_kernel(old_ssp + ((ESP + i * 4) & old_sp_mask));
+ PUSHL(ssp, sp, sp_mask, val);
+ }
+ } else {
+ PUSHW(ssp, sp, sp_mask, env->segs[R_SS].selector);
+ PUSHW(ssp, sp, sp_mask, ESP);
+ for(i = param_count - 1; i >= 0; i--) {
+ val = lduw_kernel(old_ssp + ((ESP + i * 2) & old_sp_mask));
+ PUSHW(ssp, sp, sp_mask, val);
+ }
+ }
+ new_stack = 1;
+ } else {
+ /* to same privilege */
+ sp = ESP;
+ sp_mask = get_sp_mask(env->segs[R_SS].flags);
+ ssp = env->segs[R_SS].base;
+ // push_size = (4 << shift);
+ new_stack = 0;
+ }
+
+ if (shift) {
+ PUSHL(ssp, sp, sp_mask, env->segs[R_CS].selector);
+ PUSHL(ssp, sp, sp_mask, next_eip);
+ } else {
+ PUSHW(ssp, sp, sp_mask, env->segs[R_CS].selector);
+ PUSHW(ssp, sp, sp_mask, next_eip);
+ }
+
+ /* from this point, not restartable */
+
+ if (new_stack) {
+ ss = (ss & ~3) | dpl;
+ cpu_x86_load_seg_cache(env, R_SS, ss,
+ ssp,
+ get_seg_limit(ss_e1, ss_e2),
+ ss_e2);
+ }
+
+ selector = (selector & ~3) | dpl;
+ cpu_x86_load_seg_cache(env, R_CS, selector,
+ get_seg_base(e1, e2),
+ get_seg_limit(e1, e2),
+ e2);
+ cpu_x86_set_cpl(env, dpl);
+ SET_ESP(sp, sp_mask);
+ EIP = offset;
+ }
+#ifdef USE_KQEMU
+ if (kqemu_is_ok(env)) {
+ env->exception_index = -1;
+ cpu_loop_exit();
+ }
+#endif
+}
+
+/* real and vm86 mode iret */
+void helper_iret_real(int shift)
+{
+ uint32_t sp, new_cs, new_eip, new_eflags, sp_mask;
+ target_ulong ssp;
+ int eflags_mask;
+
+ sp_mask = 0xffff; /* XXXX: use SS segment size ? */
+ sp = ESP;
+ ssp = env->segs[R_SS].base;
+ if (shift == 1) {
+ /* 32 bits */
+ POPL(ssp, sp, sp_mask, new_eip);
+ POPL(ssp, sp, sp_mask, new_cs);
+ new_cs &= 0xffff;
+ POPL(ssp, sp, sp_mask, new_eflags);
+ } else {
+ /* 16 bits */
+ POPW(ssp, sp, sp_mask, new_eip);
+ POPW(ssp, sp, sp_mask, new_cs);
+ POPW(ssp, sp, sp_mask, new_eflags);
+ }
+ ESP = (ESP & ~sp_mask) | (sp & sp_mask);
+ load_seg_vm(R_CS, new_cs);
+ env->eip = new_eip;
+ if (env->eflags & VM_MASK)
+ eflags_mask = TF_MASK | AC_MASK | ID_MASK | IF_MASK | RF_MASK | NT_MASK;
+ else
+ eflags_mask = TF_MASK | AC_MASK | ID_MASK | IF_MASK | IOPL_MASK | RF_MASK | NT_MASK;
+ if (shift == 0)
+ eflags_mask &= 0xffff;
+ load_eflags(new_eflags, eflags_mask);
+ env->hflags &= ~HF_NMI_MASK;
+}
+
+static inline void validate_seg(int seg_reg, int cpl)
+{
+ int dpl;
+ uint32_t e2;
+
+ /* XXX: on x86_64, we do not want to nullify FS and GS because
+ they may still contain a valid base. I would be interested to
+ know how a real x86_64 CPU behaves */
+ if ((seg_reg == R_FS || seg_reg == R_GS) &&
+ (env->segs[seg_reg].selector & 0xfffc) == 0)
+ return;
+
+ e2 = env->segs[seg_reg].flags;
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ if (!(e2 & DESC_CS_MASK) || !(e2 & DESC_C_MASK)) {
+ /* data or non conforming code segment */
+ if (dpl < cpl) {
+ cpu_x86_load_seg_cache(env, seg_reg, 0, 0, 0, 0);
+ }
+ }
+}
+
+/* protected mode iret */
+static inline void helper_ret_protected(int shift, int is_iret, int addend)
+{
+ uint32_t new_cs, new_eflags, new_ss;
+ uint32_t new_es, new_ds, new_fs, new_gs;
+ uint32_t e1, e2, ss_e1, ss_e2;
+ int cpl, dpl, rpl, eflags_mask, iopl;
+ target_ulong ssp, sp, new_eip, new_esp, sp_mask;
+
+#ifdef TARGET_X86_64
+ if (shift == 2)
+ sp_mask = -1;
+ else
+#endif
+ sp_mask = get_sp_mask(env->segs[R_SS].flags);
+ sp = ESP;
+ ssp = env->segs[R_SS].base;
+ new_eflags = 0; /* avoid warning */
+#ifdef TARGET_X86_64
+ if (shift == 2) {
+ POPQ(sp, new_eip);
+ POPQ(sp, new_cs);
+ new_cs &= 0xffff;
+ if (is_iret) {
+ POPQ(sp, new_eflags);
+ }
+ } else
+#endif
+ if (shift == 1) {
+ /* 32 bits */
+ POPL(ssp, sp, sp_mask, new_eip);
+ POPL(ssp, sp, sp_mask, new_cs);
+ new_cs &= 0xffff;
+ if (is_iret) {
+ POPL(ssp, sp, sp_mask, new_eflags);
+ if (new_eflags & VM_MASK)
+ goto return_to_vm86;
+ }
+ } else {
+ /* 16 bits */
+ POPW(ssp, sp, sp_mask, new_eip);
+ POPW(ssp, sp, sp_mask, new_cs);
+ if (is_iret)
+ POPW(ssp, sp, sp_mask, new_eflags);
+ }
+#ifdef DEBUG_PCALL
+ if (loglevel & CPU_LOG_PCALL) {
+ fprintf(logfile, "lret new %04x:" TARGET_FMT_lx " s=%d addend=0x%x\n",
+ new_cs, new_eip, shift, addend);
+ cpu_dump_state(env, logfile, fprintf, X86_DUMP_CCOP);
+ }
+#endif
+ if ((new_cs & 0xfffc) == 0)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ if (load_segment(&e1, &e2, new_cs) != 0)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ if (!(e2 & DESC_S_MASK) ||
+ !(e2 & DESC_CS_MASK))
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ cpl = env->hflags & HF_CPL_MASK;
+ rpl = new_cs & 3;
+ if (rpl < cpl)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ if (e2 & DESC_C_MASK) {
+ if (dpl > rpl)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ } else {
+ if (dpl != rpl)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ }
+ if (!(e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
+
+ sp += addend;
+ if (rpl == cpl && (!(env->hflags & HF_CS64_MASK) ||
+ ((env->hflags & HF_CS64_MASK) && !is_iret))) {
+ /* return to same priledge level */
+ cpu_x86_load_seg_cache(env, R_CS, new_cs,
+ get_seg_base(e1, e2),
+ get_seg_limit(e1, e2),
+ e2);
+ } else {
+ /* return to different privilege level */
+#ifdef TARGET_X86_64
+ if (shift == 2) {
+ POPQ(sp, new_esp);
+ POPQ(sp, new_ss);
+ new_ss &= 0xffff;
+ } else
+#endif
+ if (shift == 1) {
+ /* 32 bits */
+ POPL(ssp, sp, sp_mask, new_esp);
+ POPL(ssp, sp, sp_mask, new_ss);
+ new_ss &= 0xffff;
+ } else {
+ /* 16 bits */
+ POPW(ssp, sp, sp_mask, new_esp);
+ POPW(ssp, sp, sp_mask, new_ss);
+ }
+#ifdef DEBUG_PCALL
+ if (loglevel & CPU_LOG_PCALL) {
+ fprintf(logfile, "new ss:esp=%04x:" TARGET_FMT_lx "\n",
+ new_ss, new_esp);
+ }
+#endif
+ if ((new_ss & 0xfffc) == 0) {
+#ifdef TARGET_X86_64
+ /* NULL ss is allowed in long mode if cpl != 3*/
+ /* XXX: test CS64 ? */
+ if ((env->hflags & HF_LMA_MASK) && rpl != 3) {
+ cpu_x86_load_seg_cache(env, R_SS, new_ss,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
+ DESC_S_MASK | (rpl << DESC_DPL_SHIFT) |
+ DESC_W_MASK | DESC_A_MASK);
+ ss_e2 = DESC_B_MASK; /* XXX: should not be needed ? */
+ } else
+#endif
+ {
+ raise_exception_err(EXCP0D_GPF, 0);
+ }
+ } else {
+ if ((new_ss & 3) != rpl)
+ raise_exception_err(EXCP0D_GPF, new_ss & 0xfffc);
+ if (load_segment(&ss_e1, &ss_e2, new_ss) != 0)
+ raise_exception_err(EXCP0D_GPF, new_ss & 0xfffc);
+ if (!(ss_e2 & DESC_S_MASK) ||
+ (ss_e2 & DESC_CS_MASK) ||
+ !(ss_e2 & DESC_W_MASK))
+ raise_exception_err(EXCP0D_GPF, new_ss & 0xfffc);
+ dpl = (ss_e2 >> DESC_DPL_SHIFT) & 3;
+ if (dpl != rpl)
+ raise_exception_err(EXCP0D_GPF, new_ss & 0xfffc);
+ if (!(ss_e2 & DESC_P_MASK))
+ raise_exception_err(EXCP0B_NOSEG, new_ss & 0xfffc);
+ cpu_x86_load_seg_cache(env, R_SS, new_ss,
+ get_seg_base(ss_e1, ss_e2),
+ get_seg_limit(ss_e1, ss_e2),
+ ss_e2);
+ }
+
+ cpu_x86_load_seg_cache(env, R_CS, new_cs,
+ get_seg_base(e1, e2),
+ get_seg_limit(e1, e2),
+ e2);
+ cpu_x86_set_cpl(env, rpl);
+ sp = new_esp;
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_CS64_MASK)
+ sp_mask = -1;
+ else
+#endif
+ sp_mask = get_sp_mask(ss_e2);
+
+ /* validate data segments */
+ validate_seg(R_ES, rpl);
+ validate_seg(R_DS, rpl);
+ validate_seg(R_FS, rpl);
+ validate_seg(R_GS, rpl);
+
+ sp += addend;
+ }
+ SET_ESP(sp, sp_mask);
+ env->eip = new_eip;
+ if (is_iret) {
+ /* NOTE: 'cpl' is the _old_ CPL */
+ eflags_mask = TF_MASK | AC_MASK | ID_MASK | RF_MASK | NT_MASK;
+ if (cpl == 0)
+ eflags_mask |= IOPL_MASK;
+ iopl = (env->eflags >> IOPL_SHIFT) & 3;
+ if (cpl <= iopl)
+ eflags_mask |= IF_MASK;
+ if (shift == 0)
+ eflags_mask &= 0xffff;
+ load_eflags(new_eflags, eflags_mask);
+ }
+ return;
+
+ return_to_vm86:
+ POPL(ssp, sp, sp_mask, new_esp);
+ POPL(ssp, sp, sp_mask, new_ss);
+ POPL(ssp, sp, sp_mask, new_es);
+ POPL(ssp, sp, sp_mask, new_ds);
+ POPL(ssp, sp, sp_mask, new_fs);
+ POPL(ssp, sp, sp_mask, new_gs);
+
+ /* modify processor state */
+ load_eflags(new_eflags, TF_MASK | AC_MASK | ID_MASK |
+ IF_MASK | IOPL_MASK | VM_MASK | NT_MASK | VIF_MASK | VIP_MASK);
+ load_seg_vm(R_CS, new_cs & 0xffff);
+ cpu_x86_set_cpl(env, 3);
+ load_seg_vm(R_SS, new_ss & 0xffff);
+ load_seg_vm(R_ES, new_es & 0xffff);
+ load_seg_vm(R_DS, new_ds & 0xffff);
+ load_seg_vm(R_FS, new_fs & 0xffff);
+ load_seg_vm(R_GS, new_gs & 0xffff);
+
+ env->eip = new_eip & 0xffff;
+ ESP = new_esp;
+}
+
+void helper_iret_protected(int shift, int next_eip)
+{
+ int tss_selector, type;
+ uint32_t e1, e2;
+
+ /* specific case for TSS */
+ if (env->eflags & NT_MASK) {
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_LMA_MASK)
+ raise_exception_err(EXCP0D_GPF, 0);
+#endif
+ tss_selector = lduw_kernel(env->tr.base + 0);
+ if (tss_selector & 4)
+ raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
+ if (load_segment(&e1, &e2, tss_selector) != 0)
+ raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
+ type = (e2 >> DESC_TYPE_SHIFT) & 0x17;
+ /* NOTE: we check both segment and busy TSS */
+ if (type != 3)
+ raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
+ switch_tss(tss_selector, e1, e2, SWITCH_TSS_IRET, next_eip);
+ } else {
+ helper_ret_protected(shift, 1, 0);
+ }
+ env->hflags &= ~HF_NMI_MASK;
+#ifdef USE_KQEMU
+ if (kqemu_is_ok(env)) {
+ CC_OP = CC_OP_EFLAGS;
+ env->exception_index = -1;
+ cpu_loop_exit();
+ }
+#endif
+}
+
+void helper_lret_protected(int shift, int addend)
+{
+ helper_ret_protected(shift, 0, addend);
+#ifdef USE_KQEMU
+ if (kqemu_is_ok(env)) {
+ env->exception_index = -1;
+ cpu_loop_exit();
+ }
+#endif
+}
+
+void helper_sysenter(void)
+{
+ if (env->sysenter_cs == 0) {
+ raise_exception_err(EXCP0D_GPF, 0);
+ }
+ env->eflags &= ~(VM_MASK | IF_MASK | RF_MASK);
+ cpu_x86_set_cpl(env, 0);
+ cpu_x86_load_seg_cache(env, R_CS, env->sysenter_cs & 0xfffc,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
+ DESC_S_MASK |
+ DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK);
+ cpu_x86_load_seg_cache(env, R_SS, (env->sysenter_cs + 8) & 0xfffc,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
+ DESC_S_MASK |
+ DESC_W_MASK | DESC_A_MASK);
+ ESP = env->sysenter_esp;
+ EIP = env->sysenter_eip;
+}
+
+void helper_sysexit(void)
+{
+ int cpl;
+
+ cpl = env->hflags & HF_CPL_MASK;
+ if (env->sysenter_cs == 0 || cpl != 0) {
+ raise_exception_err(EXCP0D_GPF, 0);
+ }
+ cpu_x86_set_cpl(env, 3);
+ cpu_x86_load_seg_cache(env, R_CS, ((env->sysenter_cs + 16) & 0xfffc) | 3,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
+ DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
+ DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK);
+ cpu_x86_load_seg_cache(env, R_SS, ((env->sysenter_cs + 24) & 0xfffc) | 3,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
+ DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
+ DESC_W_MASK | DESC_A_MASK);
+ ESP = ECX;
+ EIP = EDX;
+#ifdef USE_KQEMU
+ if (kqemu_is_ok(env)) {
+ env->exception_index = -1;
+ cpu_loop_exit();
+ }
+#endif
+}
+
+void helper_movl_crN_T0(int reg, target_ulong t0)
+{
+#if !defined(CONFIG_USER_ONLY)
+ switch(reg) {
+ case 0:
+ cpu_x86_update_cr0(env, t0);
+ break;
+ case 3:
+ cpu_x86_update_cr3(env, t0);
+ break;
+ case 4:
+ cpu_x86_update_cr4(env, t0);
+ break;
+ case 8:
+ cpu_set_apic_tpr(env, t0);
+ env->cr[8] = t0;
+ break;
+ default:
+ env->cr[reg] = t0;
+ break;
+ }
+#endif
+}
+
+void helper_lmsw(target_ulong t0)
+{
+ /* only 4 lower bits of CR0 are modified. PE cannot be set to zero
+ if already set to one. */
+ t0 = (env->cr[0] & ~0xe) | (t0 & 0xf);
+ helper_movl_crN_T0(0, t0);
+}
+
+void helper_clts(void)
+{
+ env->cr[0] &= ~CR0_TS_MASK;
+ env->hflags &= ~HF_TS_MASK;
+}
+
+#if !defined(CONFIG_USER_ONLY)
+target_ulong helper_movtl_T0_cr8(void)
+{
+ return cpu_get_apic_tpr(env);
+}
+#endif
+
+/* XXX: do more */
+void helper_movl_drN_T0(int reg, target_ulong t0)
+{
+ env->dr[reg] = t0;
+}
+
+void helper_invlpg(target_ulong addr)
+{
+ cpu_x86_flush_tlb(env, addr);
+}
+
+void helper_rdtsc(void)
+{
+ uint64_t val;
+
+ if ((env->cr[4] & CR4_TSD_MASK) && ((env->hflags & HF_CPL_MASK) != 0)) {
+ raise_exception(EXCP0D_GPF);
+ }
+ val = cpu_get_tsc(env);
+ EAX = (uint32_t)(val);
+ EDX = (uint32_t)(val >> 32);
+}
+
+void helper_rdpmc(void)
+{
+ if ((env->cr[4] & CR4_PCE_MASK) && ((env->hflags & HF_CPL_MASK) != 0)) {
+ raise_exception(EXCP0D_GPF);
+ }
+
+ helper_svm_check_intercept_param(SVM_EXIT_RDPMC, 0);
+
+ /* currently unimplemented */
+ raise_exception_err(EXCP06_ILLOP, 0);
+}
+
+#if defined(CONFIG_USER_ONLY)
+void helper_wrmsr(void)
+{
+}
+
+void helper_rdmsr(void)
+{
+}
+#else
+void helper_wrmsr(void)
+{
+ uint64_t val;
+
+ val = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
+
+ switch((uint32_t)ECX) {
+ case MSR_IA32_SYSENTER_CS:
+ env->sysenter_cs = val & 0xffff;
+ break;
+ case MSR_IA32_SYSENTER_ESP:
+ env->sysenter_esp = val;
+ break;
+ case MSR_IA32_SYSENTER_EIP:
+ env->sysenter_eip = val;
+ break;
+ case MSR_IA32_APICBASE:
+ cpu_set_apic_base(env, val);
+ break;
+ case MSR_EFER:
+ {
+ uint64_t update_mask;
+ update_mask = 0;
+ if (env->cpuid_ext2_features & CPUID_EXT2_SYSCALL)
+ update_mask |= MSR_EFER_SCE;
+ if (env->cpuid_ext2_features & CPUID_EXT2_LM)
+ update_mask |= MSR_EFER_LME;
+ if (env->cpuid_ext2_features & CPUID_EXT2_FFXSR)
+ update_mask |= MSR_EFER_FFXSR;
+ if (env->cpuid_ext2_features & CPUID_EXT2_NX)
+ update_mask |= MSR_EFER_NXE;
+ env->efer = (env->efer & ~update_mask) |
+ (val & update_mask);
+ }
+ break;
+ case MSR_STAR:
+ env->star = val;
+ break;
+ case MSR_PAT:
+ env->pat = val;
+ break;
+ case MSR_VM_HSAVE_PA:
+ env->vm_hsave = val;
+ break;
+#ifdef TARGET_X86_64
+ case MSR_LSTAR:
+ env->lstar = val;
+ break;
+ case MSR_CSTAR:
+ env->cstar = val;
+ break;
+ case MSR_FMASK:
+ env->fmask = val;
+ break;
+ case MSR_FSBASE:
+ env->segs[R_FS].base = val;
+ break;
+ case MSR_GSBASE:
+ env->segs[R_GS].base = val;
+ break;
+ case MSR_KERNELGSBASE:
+ env->kernelgsbase = val;
+ break;
+#endif
+ default:
+ /* XXX: exception ? */
+ break;
+ }
+}
+
+void helper_rdmsr(void)
+{
+ uint64_t val;
+ switch((uint32_t)ECX) {
+ case MSR_IA32_SYSENTER_CS:
+ val = env->sysenter_cs;
+ break;
+ case MSR_IA32_SYSENTER_ESP:
+ val = env->sysenter_esp;
+ break;
+ case MSR_IA32_SYSENTER_EIP:
+ val = env->sysenter_eip;
+ break;
+ case MSR_IA32_APICBASE:
+ val = cpu_get_apic_base(env);
+ break;
+ case MSR_EFER:
+ val = env->efer;
+ break;
+ case MSR_STAR:
+ val = env->star;
+ break;
+ case MSR_PAT:
+ val = env->pat;
+ break;
+ case MSR_VM_HSAVE_PA:
+ val = env->vm_hsave;
+ break;
+#ifdef TARGET_X86_64
+ case MSR_LSTAR:
+ val = env->lstar;
+ break;
+ case MSR_CSTAR:
+ val = env->cstar;
+ break;
+ case MSR_FMASK:
+ val = env->fmask;
+ break;
+ case MSR_FSBASE:
+ val = env->segs[R_FS].base;
+ break;
+ case MSR_GSBASE:
+ val = env->segs[R_GS].base;
+ break;
+ case MSR_KERNELGSBASE:
+ val = env->kernelgsbase;
+ break;
+#endif
+ default:
+ /* XXX: exception ? */
+ val = 0;
+ break;
+ }
+ EAX = (uint32_t)(val);
+ EDX = (uint32_t)(val >> 32);
+}
+#endif
+
+target_ulong helper_lsl(target_ulong selector1)
+{
+ unsigned int limit;
+ uint32_t e1, e2, eflags, selector;
+ int rpl, dpl, cpl, type;
+
+ selector = selector1 & 0xffff;
+ eflags = cc_table[CC_OP].compute_all();
+ if (load_segment(&e1, &e2, selector) != 0)
+ goto fail;
+ rpl = selector & 3;
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ cpl = env->hflags & HF_CPL_MASK;
+ if (e2 & DESC_S_MASK) {
+ if ((e2 & DESC_CS_MASK) && (e2 & DESC_C_MASK)) {
+ /* conforming */
+ } else {
+ if (dpl < cpl || dpl < rpl)
+ goto fail;
+ }
+ } else {
+ type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
+ switch(type) {
+ case 1:
+ case 2:
+ case 3:
+ case 9:
+ case 11:
+ break;
+ default:
+ goto fail;
+ }
+ if (dpl < cpl || dpl < rpl) {
+ fail:
+ CC_SRC = eflags & ~CC_Z;
+ return 0;
+ }
+ }
+ limit = get_seg_limit(e1, e2);
+ CC_SRC = eflags | CC_Z;
+ return limit;
+}
+
+target_ulong helper_lar(target_ulong selector1)
+{
+ uint32_t e1, e2, eflags, selector;
+ int rpl, dpl, cpl, type;
+
+ selector = selector1 & 0xffff;
+ eflags = cc_table[CC_OP].compute_all();
+ if ((selector & 0xfffc) == 0)
+ goto fail;
+ if (load_segment(&e1, &e2, selector) != 0)
+ goto fail;
+ rpl = selector & 3;
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ cpl = env->hflags & HF_CPL_MASK;
+ if (e2 & DESC_S_MASK) {
+ if ((e2 & DESC_CS_MASK) && (e2 & DESC_C_MASK)) {
+ /* conforming */
+ } else {
+ if (dpl < cpl || dpl < rpl)
+ goto fail;
+ }
+ } else {
+ type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
+ switch(type) {
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ case 5:
+ case 9:
+ case 11:
+ case 12:
+ break;
+ default:
+ goto fail;
+ }
+ if (dpl < cpl || dpl < rpl) {
+ fail:
+ CC_SRC = eflags & ~CC_Z;
+ return 0;
+ }
+ }
+ CC_SRC = eflags | CC_Z;
+ return e2 & 0x00f0ff00;
+}
+
+void helper_verr(target_ulong selector1)
+{
+ uint32_t e1, e2, eflags, selector;
+ int rpl, dpl, cpl;
+
+ selector = selector1 & 0xffff;
+ eflags = cc_table[CC_OP].compute_all();
+ if ((selector & 0xfffc) == 0)
+ goto fail;
+ if (load_segment(&e1, &e2, selector) != 0)
+ goto fail;
+ if (!(e2 & DESC_S_MASK))
+ goto fail;
+ rpl = selector & 3;
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ cpl = env->hflags & HF_CPL_MASK;
+ if (e2 & DESC_CS_MASK) {
+ if (!(e2 & DESC_R_MASK))
+ goto fail;
+ if (!(e2 & DESC_C_MASK)) {
+ if (dpl < cpl || dpl < rpl)
+ goto fail;
+ }
+ } else {
+ if (dpl < cpl || dpl < rpl) {
+ fail:
+ CC_SRC = eflags & ~CC_Z;
+ return;
+ }
+ }
+ CC_SRC = eflags | CC_Z;
+}
+
+void helper_verw(target_ulong selector1)
+{
+ uint32_t e1, e2, eflags, selector;
+ int rpl, dpl, cpl;
+
+ selector = selector1 & 0xffff;
+ eflags = cc_table[CC_OP].compute_all();
+ if ((selector & 0xfffc) == 0)
+ goto fail;
+ if (load_segment(&e1, &e2, selector) != 0)
+ goto fail;
+ if (!(e2 & DESC_S_MASK))
+ goto fail;
+ rpl = selector & 3;
+ dpl = (e2 >> DESC_DPL_SHIFT) & 3;
+ cpl = env->hflags & HF_CPL_MASK;
+ if (e2 & DESC_CS_MASK) {
+ goto fail;
+ } else {
+ if (dpl < cpl || dpl < rpl)
+ goto fail;
+ if (!(e2 & DESC_W_MASK)) {
+ fail:
+ CC_SRC = eflags & ~CC_Z;
+ return;
+ }
+ }
+ CC_SRC = eflags | CC_Z;
+}
+
+/* x87 FPU helpers */
+
+static void fpu_set_exception(int mask)
+{
+ env->fpus |= mask;
+ if (env->fpus & (~env->fpuc & FPUC_EM))
+ env->fpus |= FPUS_SE | FPUS_B;
+}
+
+static inline CPU86_LDouble helper_fdiv(CPU86_LDouble a, CPU86_LDouble b)
+{
+ if (b == 0.0)
+ fpu_set_exception(FPUS_ZE);
+ return a / b;
+}
+
+void fpu_raise_exception(void)
+{
+ if (env->cr[0] & CR0_NE_MASK) {
+ raise_exception(EXCP10_COPR);
+ }
+#if !defined(CONFIG_USER_ONLY)
+ else {
+ cpu_set_ferr(env);
+ }
+#endif
+}
+
+void helper_flds_FT0(uint32_t val)
+{
+ union {
+ float32 f;
+ uint32_t i;
+ } u;
+ u.i = val;
+ FT0 = float32_to_floatx(u.f, &env->fp_status);
+}
+
+void helper_fldl_FT0(uint64_t val)
+{
+ union {
+ float64 f;
+ uint64_t i;
+ } u;
+ u.i = val;
+ FT0 = float64_to_floatx(u.f, &env->fp_status);
+}
+
+void helper_fildl_FT0(int32_t val)
+{
+ FT0 = int32_to_floatx(val, &env->fp_status);
+}
+
+void helper_flds_ST0(uint32_t val)
+{
+ int new_fpstt;
+ union {
+ float32 f;
+ uint32_t i;
+ } u;
+ new_fpstt = (env->fpstt - 1) & 7;
+ u.i = val;
+ env->fpregs[new_fpstt].d = float32_to_floatx(u.f, &env->fp_status);
+ env->fpstt = new_fpstt;
+ env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+void helper_fldl_ST0(uint64_t val)
+{
+ int new_fpstt;
+ union {
+ float64 f;
+ uint64_t i;
+ } u;
+ new_fpstt = (env->fpstt - 1) & 7;
+ u.i = val;
+ env->fpregs[new_fpstt].d = float64_to_floatx(u.f, &env->fp_status);
+ env->fpstt = new_fpstt;
+ env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+void helper_fildl_ST0(int32_t val)
+{
+ int new_fpstt;
+ new_fpstt = (env->fpstt - 1) & 7;
+ env->fpregs[new_fpstt].d = int32_to_floatx(val, &env->fp_status);
+ env->fpstt = new_fpstt;
+ env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+void helper_fildll_ST0(int64_t val)
+{
+ int new_fpstt;
+ new_fpstt = (env->fpstt - 1) & 7;
+ env->fpregs[new_fpstt].d = int64_to_floatx(val, &env->fp_status);
+ env->fpstt = new_fpstt;
+ env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+uint32_t helper_fsts_ST0(void)
+{
+ union {
+ float32 f;
+ uint32_t i;
+ } u;
+ u.f = floatx_to_float32(ST0, &env->fp_status);
+ return u.i;
+}
+
+uint64_t helper_fstl_ST0(void)
+{
+ union {
+ float64 f;
+ uint64_t i;
+ } u;
+ u.f = floatx_to_float64(ST0, &env->fp_status);
+ return u.i;
+}
+
+int32_t helper_fist_ST0(void)
+{
+ int32_t val;
+ val = floatx_to_int32(ST0, &env->fp_status);
+ if (val != (int16_t)val)
+ val = -32768;
+ return val;
+}
+
+int32_t helper_fistl_ST0(void)
+{
+ int32_t val;
+ val = floatx_to_int32(ST0, &env->fp_status);
+ return val;
+}
+
+int64_t helper_fistll_ST0(void)
+{
+ int64_t val;
+ val = floatx_to_int64(ST0, &env->fp_status);
+ return val;
+}
+
+int32_t helper_fistt_ST0(void)
+{
+ int32_t val;
+ val = floatx_to_int32_round_to_zero(ST0, &env->fp_status);
+ if (val != (int16_t)val)
+ val = -32768;
+ return val;
+}
+
+int32_t helper_fisttl_ST0(void)
+{
+ int32_t val;
+ val = floatx_to_int32_round_to_zero(ST0, &env->fp_status);
+ return val;
+}
+
+int64_t helper_fisttll_ST0(void)
+{
+ int64_t val;
+ val = floatx_to_int64_round_to_zero(ST0, &env->fp_status);
+ return val;
+}
+
+void helper_fldt_ST0(target_ulong ptr)
+{
+ int new_fpstt;
+ new_fpstt = (env->fpstt - 1) & 7;
+ env->fpregs[new_fpstt].d = helper_fldt(ptr);
+ env->fpstt = new_fpstt;
+ env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+void helper_fstt_ST0(target_ulong ptr)
+{
+ helper_fstt(ST0, ptr);
+}
+
+void helper_fpush(void)
+{
+ fpush();
+}
+
+void helper_fpop(void)
+{
+ fpop();
+}
+
+void helper_fdecstp(void)
+{
+ env->fpstt = (env->fpstt - 1) & 7;
+ env->fpus &= (~0x4700);
+}
+
+void helper_fincstp(void)
+{
+ env->fpstt = (env->fpstt + 1) & 7;
+ env->fpus &= (~0x4700);
+}
+
+/* FPU move */
+
+void helper_ffree_STN(int st_index)
+{
+ env->fptags[(env->fpstt + st_index) & 7] = 1;
+}
+
+void helper_fmov_ST0_FT0(void)
+{
+ ST0 = FT0;
+}
+
+void helper_fmov_FT0_STN(int st_index)
+{
+ FT0 = ST(st_index);
+}
+
+void helper_fmov_ST0_STN(int st_index)
+{
+ ST0 = ST(st_index);
+}
+
+void helper_fmov_STN_ST0(int st_index)
+{
+ ST(st_index) = ST0;
+}
+
+void helper_fxchg_ST0_STN(int st_index)
+{
+ CPU86_LDouble tmp;
+ tmp = ST(st_index);
+ ST(st_index) = ST0;
+ ST0 = tmp;
+}
+
+/* FPU operations */
+
+static const int fcom_ccval[4] = {0x0100, 0x4000, 0x0000, 0x4500};
+
+void helper_fcom_ST0_FT0(void)
+{
+ int ret;
+
+ ret = floatx_compare(ST0, FT0, &env->fp_status);
+ env->fpus = (env->fpus & ~0x4500) | fcom_ccval[ret + 1];
+ FORCE_RET();
+}
+
+void helper_fucom_ST0_FT0(void)
+{
+ int ret;
+
+ ret = floatx_compare_quiet(ST0, FT0, &env->fp_status);
+ env->fpus = (env->fpus & ~0x4500) | fcom_ccval[ret+ 1];
+ FORCE_RET();
+}
+
+static const int fcomi_ccval[4] = {CC_C, CC_Z, 0, CC_Z | CC_P | CC_C};
+
+void helper_fcomi_ST0_FT0(void)
+{
+ int eflags;
+ int ret;
+
+ ret = floatx_compare(ST0, FT0, &env->fp_status);
+ eflags = cc_table[CC_OP].compute_all();
+ eflags = (eflags & ~(CC_Z | CC_P | CC_C)) | fcomi_ccval[ret + 1];
+ CC_SRC = eflags;
+ FORCE_RET();
+}
+
+void helper_fucomi_ST0_FT0(void)
+{
+ int eflags;
+ int ret;
+
+ ret = floatx_compare_quiet(ST0, FT0, &env->fp_status);
+ eflags = cc_table[CC_OP].compute_all();
+ eflags = (eflags & ~(CC_Z | CC_P | CC_C)) | fcomi_ccval[ret + 1];
+ CC_SRC = eflags;
+ FORCE_RET();
+}
+
+void helper_fadd_ST0_FT0(void)
+{
+ ST0 += FT0;
+}
+
+void helper_fmul_ST0_FT0(void)
+{
+ ST0 *= FT0;
+}
+
+void helper_fsub_ST0_FT0(void)
+{
+ ST0 -= FT0;
+}
+
+void helper_fsubr_ST0_FT0(void)
+{
+ ST0 = FT0 - ST0;
+}
+
+void helper_fdiv_ST0_FT0(void)
+{
+ ST0 = helper_fdiv(ST0, FT0);
+}
+
+void helper_fdivr_ST0_FT0(void)
+{
+ ST0 = helper_fdiv(FT0, ST0);
+}
+
+/* fp operations between STN and ST0 */
+
+void helper_fadd_STN_ST0(int st_index)
+{
+ ST(st_index) += ST0;
+}
+
+void helper_fmul_STN_ST0(int st_index)
+{
+ ST(st_index) *= ST0;
+}
+
+void helper_fsub_STN_ST0(int st_index)
+{
+ ST(st_index) -= ST0;
+}
+
+void helper_fsubr_STN_ST0(int st_index)
+{
+ CPU86_LDouble *p;
+ p = &ST(st_index);
+ *p = ST0 - *p;
+}
+
+void helper_fdiv_STN_ST0(int st_index)
+{
+ CPU86_LDouble *p;
+ p = &ST(st_index);
+ *p = helper_fdiv(*p, ST0);
+}
+
+void helper_fdivr_STN_ST0(int st_index)
+{
+ CPU86_LDouble *p;
+ p = &ST(st_index);
+ *p = helper_fdiv(ST0, *p);
+}
+
+/* misc FPU operations */
+void helper_fchs_ST0(void)
+{
+ ST0 = floatx_chs(ST0);
+}
+
+void helper_fabs_ST0(void)
+{
+ ST0 = floatx_abs(ST0);
+}
+
+void helper_fld1_ST0(void)
+{
+ ST0 = f15rk[1];
+}
+
+void helper_fldl2t_ST0(void)
+{
+ ST0 = f15rk[6];
+}
+
+void helper_fldl2e_ST0(void)
+{
+ ST0 = f15rk[5];
+}
+
+void helper_fldpi_ST0(void)
+{
+ ST0 = f15rk[2];
+}
+
+void helper_fldlg2_ST0(void)
+{
+ ST0 = f15rk[3];
+}
+
+void helper_fldln2_ST0(void)
+{
+ ST0 = f15rk[4];
+}
+
+void helper_fldz_ST0(void)
+{
+ ST0 = f15rk[0];
+}
+
+void helper_fldz_FT0(void)
+{
+ FT0 = f15rk[0];
+}
+
+uint32_t helper_fnstsw(void)
+{
+ return (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
+}
+
+uint32_t helper_fnstcw(void)
+{
+ return env->fpuc;
+}
+
+static void update_fp_status(void)
+{
+ int rnd_type;
+
+ /* set rounding mode */
+ switch(env->fpuc & RC_MASK) {
+ default:
+ case RC_NEAR:
+ rnd_type = float_round_nearest_even;
+ break;
+ case RC_DOWN:
+ rnd_type = float_round_down;
+ break;
+ case RC_UP:
+ rnd_type = float_round_up;
+ break;
+ case RC_CHOP:
+ rnd_type = float_round_to_zero;
+ break;
+ }
+ set_float_rounding_mode(rnd_type, &env->fp_status);
+#ifdef FLOATX80
+ switch((env->fpuc >> 8) & 3) {
+ case 0:
+ rnd_type = 32;
+ break;
+ case 2:
+ rnd_type = 64;
+ break;
+ case 3:
+ default:
+ rnd_type = 80;
+ break;
+ }
+ set_floatx80_rounding_precision(rnd_type, &env->fp_status);
+#endif
+}
+
+void helper_fldcw(uint32_t val)
+{
+ env->fpuc = val;
+ update_fp_status();
+}
+
+void helper_fclex(void)
+{
+ env->fpus &= 0x7f00;
+}
+
+void helper_fwait(void)
+{
+ if (env->fpus & FPUS_SE)
+ fpu_raise_exception();
+ FORCE_RET();
+}
+
+void helper_fninit(void)
+{
+ env->fpus = 0;
+ env->fpstt = 0;
+ env->fpuc = 0x37f;
+ env->fptags[0] = 1;
+ env->fptags[1] = 1;
+ env->fptags[2] = 1;
+ env->fptags[3] = 1;
+ env->fptags[4] = 1;
+ env->fptags[5] = 1;
+ env->fptags[6] = 1;
+ env->fptags[7] = 1;
+}
+
+/* BCD ops */
+
+void helper_fbld_ST0(target_ulong ptr)
+{
+ CPU86_LDouble tmp;
+ uint64_t val;
+ unsigned int v;
+ int i;
+
+ val = 0;
+ for(i = 8; i >= 0; i--) {
+ v = ldub(ptr + i);
+ val = (val * 100) + ((v >> 4) * 10) + (v & 0xf);
+ }
+ tmp = val;
+ if (ldub(ptr + 9) & 0x80)
+ tmp = -tmp;
+ fpush();
+ ST0 = tmp;
+}
+
+void helper_fbst_ST0(target_ulong ptr)
+{
+ int v;
+ target_ulong mem_ref, mem_end;
+ int64_t val;
+
+ val = floatx_to_int64(ST0, &env->fp_status);
+ mem_ref = ptr;
+ mem_end = mem_ref + 9;
+ if (val < 0) {
+ stb(mem_end, 0x80);
+ val = -val;
+ } else {
+ stb(mem_end, 0x00);
+ }
+ while (mem_ref < mem_end) {
+ if (val == 0)
+ break;
+ v = val % 100;
+ val = val / 100;
+ v = ((v / 10) << 4) | (v % 10);
+ stb(mem_ref++, v);
+ }
+ while (mem_ref < mem_end) {
+ stb(mem_ref++, 0);
+ }
+}
+
+void helper_f2xm1(void)
+{
+ ST0 = pow(2.0,ST0) - 1.0;
+}
+
+void helper_fyl2x(void)
+{
+ CPU86_LDouble fptemp;
+
+ fptemp = ST0;
+ if (fptemp>0.0){
+ fptemp = log(fptemp)/log(2.0); /* log2(ST) */
+ ST1 *= fptemp;
+ fpop();
+ } else {
+ env->fpus &= (~0x4700);
+ env->fpus |= 0x400;
+ }
+}
+
+void helper_fptan(void)
+{
+ CPU86_LDouble fptemp;
+
+ fptemp = ST0;
+ if((fptemp > MAXTAN)||(fptemp < -MAXTAN)) {
+ env->fpus |= 0x400;
+ } else {
+ ST0 = tan(fptemp);
+ fpush();
+ ST0 = 1.0;
+ env->fpus &= (~0x400); /* C2 <-- 0 */
+ /* the above code is for |arg| < 2**52 only */
+ }
+}
+
+void helper_fpatan(void)
+{
+ CPU86_LDouble fptemp, fpsrcop;
+
+ fpsrcop = ST1;
+ fptemp = ST0;
+ ST1 = atan2(fpsrcop,fptemp);
+ fpop();
+}
+
+void helper_fxtract(void)
+{
+ CPU86_LDoubleU temp;
+ unsigned int expdif;
+
+ temp.d = ST0;
+ expdif = EXPD(temp) - EXPBIAS;
+ /*DP exponent bias*/
+ ST0 = expdif;
+ fpush();
+ BIASEXPONENT(temp);
+ ST0 = temp.d;
+}
+
+void helper_fprem1(void)
+{
+ CPU86_LDouble dblq, fpsrcop, fptemp;
+ CPU86_LDoubleU fpsrcop1, fptemp1;
+ int expdif;
+ signed long long int q;
+
+ if (isinf(ST0) || isnan(ST0) || isnan(ST1) || (ST1 == 0.0)) {
+ ST0 = 0.0 / 0.0; /* NaN */
+ env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
+ return;
+ }
+
+ fpsrcop = ST0;
+ fptemp = ST1;
+ fpsrcop1.d = fpsrcop;
+ fptemp1.d = fptemp;
+ expdif = EXPD(fpsrcop1) - EXPD(fptemp1);
+
+ if (expdif < 0) {
+ /* optimisation? taken from the AMD docs */
+ env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
+ /* ST0 is unchanged */
+ return;
+ }
+
+ if (expdif < 53) {
+ dblq = fpsrcop / fptemp;
+ /* round dblq towards nearest integer */
+ dblq = rint(dblq);
+ ST0 = fpsrcop - fptemp * dblq;
+
+ /* convert dblq to q by truncating towards zero */
+ if (dblq < 0.0)
+ q = (signed long long int)(-dblq);
+ else
+ q = (signed long long int)dblq;
+
+ env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
+ /* (C0,C3,C1) <-- (q2,q1,q0) */
+ env->fpus |= (q & 0x4) << (8 - 2); /* (C0) <-- q2 */
+ env->fpus |= (q & 0x2) << (14 - 1); /* (C3) <-- q1 */
+ env->fpus |= (q & 0x1) << (9 - 0); /* (C1) <-- q0 */
+ } else {
+ env->fpus |= 0x400; /* C2 <-- 1 */
+ fptemp = pow(2.0, expdif - 50);
+ fpsrcop = (ST0 / ST1) / fptemp;
+ /* fpsrcop = integer obtained by chopping */
+ fpsrcop = (fpsrcop < 0.0) ?
+ -(floor(fabs(fpsrcop))) : floor(fpsrcop);
+ ST0 -= (ST1 * fpsrcop * fptemp);
+ }
+}
+
+void helper_fprem(void)
+{
+ CPU86_LDouble dblq, fpsrcop, fptemp;
+ CPU86_LDoubleU fpsrcop1, fptemp1;
+ int expdif;
+ signed long long int q;
+
+ if (isinf(ST0) || isnan(ST0) || isnan(ST1) || (ST1 == 0.0)) {
+ ST0 = 0.0 / 0.0; /* NaN */
+ env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
+ return;
+ }
+
+ fpsrcop = (CPU86_LDouble)ST0;
+ fptemp = (CPU86_LDouble)ST1;
+ fpsrcop1.d = fpsrcop;
+ fptemp1.d = fptemp;
+ expdif = EXPD(fpsrcop1) - EXPD(fptemp1);
+
+ if (expdif < 0) {
+ /* optimisation? taken from the AMD docs */
+ env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
+ /* ST0 is unchanged */
+ return;
+ }
+
+ if ( expdif < 53 ) {
+ dblq = fpsrcop/*ST0*/ / fptemp/*ST1*/;
+ /* round dblq towards zero */
+ dblq = (dblq < 0.0) ? ceil(dblq) : floor(dblq);
+ ST0 = fpsrcop/*ST0*/ - fptemp * dblq;
+
+ /* convert dblq to q by truncating towards zero */
+ if (dblq < 0.0)
+ q = (signed long long int)(-dblq);
+ else
+ q = (signed long long int)dblq;
+
+ env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
+ /* (C0,C3,C1) <-- (q2,q1,q0) */
+ env->fpus |= (q & 0x4) << (8 - 2); /* (C0) <-- q2 */
+ env->fpus |= (q & 0x2) << (14 - 1); /* (C3) <-- q1 */
+ env->fpus |= (q & 0x1) << (9 - 0); /* (C1) <-- q0 */
+ } else {
+ int N = 32 + (expdif % 32); /* as per AMD docs */
+ env->fpus |= 0x400; /* C2 <-- 1 */
+ fptemp = pow(2.0, (double)(expdif - N));
+ fpsrcop = (ST0 / ST1) / fptemp;
+ /* fpsrcop = integer obtained by chopping */
+ fpsrcop = (fpsrcop < 0.0) ?
+ -(floor(fabs(fpsrcop))) : floor(fpsrcop);
+ ST0 -= (ST1 * fpsrcop * fptemp);
+ }
+}
+
+void helper_fyl2xp1(void)
+{
+ CPU86_LDouble fptemp;
+
+ fptemp = ST0;
+ if ((fptemp+1.0)>0.0) {
+ fptemp = log(fptemp+1.0) / log(2.0); /* log2(ST+1.0) */
+ ST1 *= fptemp;
+ fpop();
+ } else {
+ env->fpus &= (~0x4700);
+ env->fpus |= 0x400;
+ }
+}
+
+void helper_fsqrt(void)
+{
+ CPU86_LDouble fptemp;
+
+ fptemp = ST0;
+ if (fptemp<0.0) {
+ env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
+ env->fpus |= 0x400;
+ }
+ ST0 = sqrt(fptemp);
+}
+
+void helper_fsincos(void)
+{
+ CPU86_LDouble fptemp;
+
+ fptemp = ST0;
+ if ((fptemp > MAXTAN)||(fptemp < -MAXTAN)) {
+ env->fpus |= 0x400;
+ } else {
+ ST0 = sin(fptemp);
+ fpush();
+ ST0 = cos(fptemp);
+ env->fpus &= (~0x400); /* C2 <-- 0 */
+ /* the above code is for |arg| < 2**63 only */
+ }
+}
+
+void helper_frndint(void)
+{
+ ST0 = floatx_round_to_int(ST0, &env->fp_status);
+}
+
+void helper_fscale(void)
+{
+ ST0 = ldexp (ST0, (int)(ST1));
+}
+
+void helper_fsin(void)
+{
+ CPU86_LDouble fptemp;
+
+ fptemp = ST0;
+ if ((fptemp > MAXTAN)||(fptemp < -MAXTAN)) {
+ env->fpus |= 0x400;
+ } else {
+ ST0 = sin(fptemp);
+ env->fpus &= (~0x400); /* C2 <-- 0 */
+ /* the above code is for |arg| < 2**53 only */
+ }
+}
+
+void helper_fcos(void)
+{
+ CPU86_LDouble fptemp;
+
+ fptemp = ST0;
+ if((fptemp > MAXTAN)||(fptemp < -MAXTAN)) {
+ env->fpus |= 0x400;
+ } else {
+ ST0 = cos(fptemp);
+ env->fpus &= (~0x400); /* C2 <-- 0 */
+ /* the above code is for |arg5 < 2**63 only */
+ }
+}
+
+void helper_fxam_ST0(void)
+{
+ CPU86_LDoubleU temp;
+ int expdif;
+
+ temp.d = ST0;
+
+ env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
+ if (SIGND(temp))
+ env->fpus |= 0x200; /* C1 <-- 1 */
+
+ /* XXX: test fptags too */
+ expdif = EXPD(temp);
+ if (expdif == MAXEXPD) {
+#ifdef USE_X86LDOUBLE
+ if (MANTD(temp) == 0x8000000000000000ULL)
+#else
+ if (MANTD(temp) == 0)
+#endif
+ env->fpus |= 0x500 /*Infinity*/;
+ else
+ env->fpus |= 0x100 /*NaN*/;
+ } else if (expdif == 0) {
+ if (MANTD(temp) == 0)
+ env->fpus |= 0x4000 /*Zero*/;
+ else
+ env->fpus |= 0x4400 /*Denormal*/;
+ } else {
+ env->fpus |= 0x400;
+ }
+}
+
+void helper_fstenv(target_ulong ptr, int data32)
+{
+ int fpus, fptag, exp, i;
+ uint64_t mant;
+ CPU86_LDoubleU tmp;
+
+ fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
+ fptag = 0;
+ for (i=7; i>=0; i--) {
+ fptag <<= 2;
+ if (env->fptags[i]) {
+ fptag |= 3;
+ } else {
+ tmp.d = env->fpregs[i].d;
+ exp = EXPD(tmp);
+ mant = MANTD(tmp);
+ if (exp == 0 && mant == 0) {
+ /* zero */
+ fptag |= 1;
+ } else if (exp == 0 || exp == MAXEXPD
+#ifdef USE_X86LDOUBLE
+ || (mant & (1LL << 63)) == 0
+#endif
+ ) {
+ /* NaNs, infinity, denormal */
+ fptag |= 2;
+ }
+ }
+ }
+ if (data32) {
+ /* 32 bit */
+ stl(ptr, env->fpuc);
+ stl(ptr + 4, fpus);
+ stl(ptr + 8, fptag);
+ stl(ptr + 12, 0); /* fpip */
+ stl(ptr + 16, 0); /* fpcs */
+ stl(ptr + 20, 0); /* fpoo */
+ stl(ptr + 24, 0); /* fpos */
+ } else {
+ /* 16 bit */
+ stw(ptr, env->fpuc);
+ stw(ptr + 2, fpus);
+ stw(ptr + 4, fptag);
+ stw(ptr + 6, 0);
+ stw(ptr + 8, 0);
+ stw(ptr + 10, 0);
+ stw(ptr + 12, 0);
+ }
+}
+
+void helper_fldenv(target_ulong ptr, int data32)
+{
+ int i, fpus, fptag;
+
+ if (data32) {
+ env->fpuc = lduw(ptr);
+ fpus = lduw(ptr + 4);
+ fptag = lduw(ptr + 8);
+ }
+ else {
+ env->fpuc = lduw(ptr);
+ fpus = lduw(ptr + 2);
+ fptag = lduw(ptr + 4);
+ }
+ env->fpstt = (fpus >> 11) & 7;
+ env->fpus = fpus & ~0x3800;
+ for(i = 0;i < 8; i++) {
+ env->fptags[i] = ((fptag & 3) == 3);
+ fptag >>= 2;
+ }
+}
+
+void helper_fsave(target_ulong ptr, int data32)
+{
+ CPU86_LDouble tmp;
+ int i;
+
+ helper_fstenv(ptr, data32);
+
+ ptr += (14 << data32);
+ for(i = 0;i < 8; i++) {
+ tmp = ST(i);
+ helper_fstt(tmp, ptr);
+ ptr += 10;
+ }
+
+ /* fninit */
+ env->fpus = 0;
+ env->fpstt = 0;
+ env->fpuc = 0x37f;
+ env->fptags[0] = 1;
+ env->fptags[1] = 1;
+ env->fptags[2] = 1;
+ env->fptags[3] = 1;
+ env->fptags[4] = 1;
+ env->fptags[5] = 1;
+ env->fptags[6] = 1;
+ env->fptags[7] = 1;
+}
+
+void helper_frstor(target_ulong ptr, int data32)
+{
+ CPU86_LDouble tmp;
+ int i;
+
+ helper_fldenv(ptr, data32);
+ ptr += (14 << data32);
+
+ for(i = 0;i < 8; i++) {
+ tmp = helper_fldt(ptr);
+ ST(i) = tmp;
+ ptr += 10;
+ }
+}
+
+void helper_fxsave(target_ulong ptr, int data64)
+{
+ int fpus, fptag, i, nb_xmm_regs;
+ CPU86_LDouble tmp;
+ target_ulong addr;
+
+ fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
+ fptag = 0;
+ for(i = 0; i < 8; i++) {
+ fptag |= (env->fptags[i] << i);
+ }
+ stw(ptr, env->fpuc);
+ stw(ptr + 2, fpus);
+ stw(ptr + 4, fptag ^ 0xff);
+#ifdef TARGET_X86_64
+ if (data64) {
+ stq(ptr + 0x08, 0); /* rip */
+ stq(ptr + 0x10, 0); /* rdp */
+ } else
+#endif
+ {
+ stl(ptr + 0x08, 0); /* eip */
+ stl(ptr + 0x0c, 0); /* sel */
+ stl(ptr + 0x10, 0); /* dp */
+ stl(ptr + 0x14, 0); /* sel */
+ }
+
+ addr = ptr + 0x20;
+ for(i = 0;i < 8; i++) {
+ tmp = ST(i);
+ helper_fstt(tmp, addr);
+ addr += 16;
+ }
+
+ if (env->cr[4] & CR4_OSFXSR_MASK) {
+ /* XXX: finish it */
+ stl(ptr + 0x18, env->mxcsr); /* mxcsr */
+ stl(ptr + 0x1c, 0x0000ffff); /* mxcsr_mask */
+ if (env->hflags & HF_CS64_MASK)
+ nb_xmm_regs = 16;
+ else
+ nb_xmm_regs = 8;
+ addr = ptr + 0xa0;
+ for(i = 0; i < nb_xmm_regs; i++) {
+ stq(addr, env->xmm_regs[i].XMM_Q(0));
+ stq(addr + 8, env->xmm_regs[i].XMM_Q(1));
+ addr += 16;
+ }
+ }
+}
+
+void helper_fxrstor(target_ulong ptr, int data64)
+{
+ int i, fpus, fptag, nb_xmm_regs;
+ CPU86_LDouble tmp;
+ target_ulong addr;
+
+ env->fpuc = lduw(ptr);
+ fpus = lduw(ptr + 2);
+ fptag = lduw(ptr + 4);
+ env->fpstt = (fpus >> 11) & 7;
+ env->fpus = fpus & ~0x3800;
+ fptag ^= 0xff;
+ for(i = 0;i < 8; i++) {
+ env->fptags[i] = ((fptag >> i) & 1);
+ }
+
+ addr = ptr + 0x20;
+ for(i = 0;i < 8; i++) {
+ tmp = helper_fldt(addr);
+ ST(i) = tmp;
+ addr += 16;
+ }
+
+ if (env->cr[4] & CR4_OSFXSR_MASK) {
+ /* XXX: finish it */
+ env->mxcsr = ldl(ptr + 0x18);
+ //ldl(ptr + 0x1c);
+ if (env->hflags & HF_CS64_MASK)
+ nb_xmm_regs = 16;
+ else
+ nb_xmm_regs = 8;
+ addr = ptr + 0xa0;
+ for(i = 0; i < nb_xmm_regs; i++) {
+ env->xmm_regs[i].XMM_Q(0) = ldq(addr);
+ env->xmm_regs[i].XMM_Q(1) = ldq(addr + 8);
+ addr += 16;
+ }
+ }
+}
+
+#ifndef USE_X86LDOUBLE
+
+void cpu_get_fp80(uint64_t *pmant, uint16_t *pexp, CPU86_LDouble f)
+{
+ CPU86_LDoubleU temp;
+ int e;
+
+ temp.d = f;
+ /* mantissa */
+ *pmant = (MANTD(temp) << 11) | (1LL << 63);
+ /* exponent + sign */
+ e = EXPD(temp) - EXPBIAS + 16383;
+ e |= SIGND(temp) >> 16;
+ *pexp = e;
+}
+
+CPU86_LDouble cpu_set_fp80(uint64_t mant, uint16_t upper)
+{
+ CPU86_LDoubleU temp;
+ int e;
+ uint64_t ll;
+
+ /* XXX: handle overflow ? */
+ e = (upper & 0x7fff) - 16383 + EXPBIAS; /* exponent */
+ e |= (upper >> 4) & 0x800; /* sign */
+ ll = (mant >> 11) & ((1LL << 52) - 1);
+#ifdef __arm__
+ temp.l.upper = (e << 20) | (ll >> 32);
+ temp.l.lower = ll;
+#else
+ temp.ll = ll | ((uint64_t)e << 52);
+#endif
+ return temp.d;
+}
+
+#else
+
+void cpu_get_fp80(uint64_t *pmant, uint16_t *pexp, CPU86_LDouble f)
+{
+ CPU86_LDoubleU temp;
+
+ temp.d = f;
+ *pmant = temp.l.lower;
+ *pexp = temp.l.upper;
+}
+
+CPU86_LDouble cpu_set_fp80(uint64_t mant, uint16_t upper)
+{
+ CPU86_LDoubleU temp;
+
+ temp.l.upper = upper;
+ temp.l.lower = mant;
+ return temp.d;
+}
+#endif
+
+#ifdef TARGET_X86_64
+
+//#define DEBUG_MULDIV
+
+static void add128(uint64_t *plow, uint64_t *phigh, uint64_t a, uint64_t b)
+{
+ *plow += a;
+ /* carry test */
+ if (*plow < a)
+ (*phigh)++;
+ *phigh += b;
+}
+
+static void neg128(uint64_t *plow, uint64_t *phigh)
+{
+ *plow = ~ *plow;
+ *phigh = ~ *phigh;
+ add128(plow, phigh, 1, 0);
+}
+
+/* return TRUE if overflow */
+static int div64(uint64_t *plow, uint64_t *phigh, uint64_t b)
+{
+ uint64_t q, r, a1, a0;
+ int i, qb, ab;
+
+ a0 = *plow;
+ a1 = *phigh;
+ if (a1 == 0) {
+ q = a0 / b;
+ r = a0 % b;
+ *plow = q;
+ *phigh = r;
+ } else {
+ if (a1 >= b)
+ return 1;
+ /* XXX: use a better algorithm */
+ for(i = 0; i < 64; i++) {
+ ab = a1 >> 63;
+ a1 = (a1 << 1) | (a0 >> 63);
+ if (ab || a1 >= b) {
+ a1 -= b;
+ qb = 1;
+ } else {
+ qb = 0;
+ }
+ a0 = (a0 << 1) | qb;
+ }
+#if defined(DEBUG_MULDIV)
+ printf("div: 0x%016" PRIx64 "%016" PRIx64 " / 0x%016" PRIx64 ": q=0x%016" PRIx64 " r=0x%016" PRIx64 "\n",
+ *phigh, *plow, b, a0, a1);
+#endif
+ *plow = a0;
+ *phigh = a1;
+ }
+ return 0;
+}
+
+/* return TRUE if overflow */
+static int idiv64(uint64_t *plow, uint64_t *phigh, int64_t b)
+{
+ int sa, sb;
+ sa = ((int64_t)*phigh < 0);
+ if (sa)
+ neg128(plow, phigh);
+ sb = (b < 0);
+ if (sb)
+ b = -b;
+ if (div64(plow, phigh, b) != 0)
+ return 1;
+ if (sa ^ sb) {
+ if (*plow > (1ULL << 63))
+ return 1;
+ *plow = - *plow;
+ } else {
+ if (*plow >= (1ULL << 63))
+ return 1;
+ }
+ if (sa)
+ *phigh = - *phigh;
+ return 0;
+}
+
+void helper_mulq_EAX_T0(target_ulong t0)
+{
+ uint64_t r0, r1;
+
+ mulu64(&r0, &r1, EAX, t0);
+ EAX = r0;
+ EDX = r1;
+ CC_DST = r0;
+ CC_SRC = r1;
+}
+
+void helper_imulq_EAX_T0(target_ulong t0)
+{
+ uint64_t r0, r1;
+
+ muls64(&r0, &r1, EAX, t0);
+ EAX = r0;
+ EDX = r1;
+ CC_DST = r0;
+ CC_SRC = ((int64_t)r1 != ((int64_t)r0 >> 63));
+}
+
+target_ulong helper_imulq_T0_T1(target_ulong t0, target_ulong t1)
+{
+ uint64_t r0, r1;
+
+ muls64(&r0, &r1, t0, t1);
+ CC_DST = r0;
+ CC_SRC = ((int64_t)r1 != ((int64_t)r0 >> 63));
+ return r0;
+}
+
+void helper_divq_EAX(target_ulong t0)
+{
+ uint64_t r0, r1;
+ if (t0 == 0) {
+ raise_exception(EXCP00_DIVZ);
+ }
+ r0 = EAX;
+ r1 = EDX;
+ if (div64(&r0, &r1, t0))
+ raise_exception(EXCP00_DIVZ);
+ EAX = r0;
+ EDX = r1;
+}
+
+void helper_idivq_EAX(target_ulong t0)
+{
+ uint64_t r0, r1;
+ if (t0 == 0) {
+ raise_exception(EXCP00_DIVZ);
+ }
+ r0 = EAX;
+ r1 = EDX;
+ if (idiv64(&r0, &r1, t0))
+ raise_exception(EXCP00_DIVZ);
+ EAX = r0;
+ EDX = r1;
+}
+#endif
+
+void helper_hlt(void)
+{
+ env->hflags &= ~HF_INHIBIT_IRQ_MASK; /* needed if sti is just before */
+ env->hflags |= HF_HALTED_MASK;
+ env->exception_index = EXCP_HLT;
+ cpu_loop_exit();
+}
+
+void helper_monitor(target_ulong ptr)
+{
+ if ((uint32_t)ECX != 0)
+ raise_exception(EXCP0D_GPF);
+ /* XXX: store address ? */
+}
+
+void helper_mwait(void)
+{
+ if ((uint32_t)ECX != 0)
+ raise_exception(EXCP0D_GPF);
+ /* XXX: not complete but not completely erroneous */
+ if (env->cpu_index != 0 || env->next_cpu != NULL) {
+ /* more than one CPU: do not sleep because another CPU may
+ wake this one */
+ } else {
+ helper_hlt();
+ }
+}
+
+void helper_debug(void)
+{
+ env->exception_index = EXCP_DEBUG;
+ cpu_loop_exit();
+}
+
+void helper_raise_interrupt(int intno, int next_eip_addend)
+{
+ raise_interrupt(intno, 1, 0, next_eip_addend);
+}
+
+void helper_raise_exception(int exception_index)
+{
+ raise_exception(exception_index);
+}
+
+void helper_cli(void)
+{
+ env->eflags &= ~IF_MASK;
+}
+
+void helper_sti(void)
+{
+ env->eflags |= IF_MASK;
+}
+
+#if 0
+/* vm86plus instructions */
+void helper_cli_vm(void)
+{
+ env->eflags &= ~VIF_MASK;
+}
+
+void helper_sti_vm(void)
+{
+ env->eflags |= VIF_MASK;
+ if (env->eflags & VIP_MASK) {
+ raise_exception(EXCP0D_GPF);
+ }
+}
+#endif
+
+void helper_set_inhibit_irq(void)
+{
+ env->hflags |= HF_INHIBIT_IRQ_MASK;
+}
+
+void helper_reset_inhibit_irq(void)
+{
+ env->hflags &= ~HF_INHIBIT_IRQ_MASK;
+}
+
+void helper_boundw(target_ulong a0, int v)
+{
+ int low, high;
+ low = ldsw(a0);
+ high = ldsw(a0 + 2);
+ v = (int16_t)v;
+ if (v < low || v > high) {
+ raise_exception(EXCP05_BOUND);
+ }
+ FORCE_RET();
+}
+
+void helper_boundl(target_ulong a0, int v)
+{
+ int low, high;
+ low = ldl(a0);
+ high = ldl(a0 + 4);
+ if (v < low || v > high) {
+ raise_exception(EXCP05_BOUND);
+ }
+ FORCE_RET();
+}
+
+static float approx_rsqrt(float a)
+{
+ return 1.0 / sqrt(a);
+}
+
+static float approx_rcp(float a)
+{
+ return 1.0 / a;
+}
+
+#if !defined(CONFIG_USER_ONLY)
+
+#define MMUSUFFIX _mmu
+
+#define SHIFT 0
+#include "softmmu_template.h"
+
+#define SHIFT 1
+#include "softmmu_template.h"
+
+#define SHIFT 2
+#include "softmmu_template.h"
+
+#define SHIFT 3
+#include "softmmu_template.h"
+
+#endif
+
+/* try to fill the TLB and return an exception if error. If retaddr is
+ NULL, it means that the function was called in C code (i.e. not
+ from generated code or from helper.c) */
+/* XXX: fix it to restore all registers */
+void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr)
+{
+ TranslationBlock *tb;
+ int ret;
+ unsigned long pc;
+ CPUX86State *saved_env;
+
+ /* XXX: hack to restore env in all cases, even if not called from
+ generated code */
+ saved_env = env;
+ env = cpu_single_env;
+
+ ret = cpu_x86_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
+ if (ret) {
+ if (retaddr) {
+ /* now we have a real cpu fault */
+ pc = (unsigned long)retaddr;
+ tb = tb_find_pc(pc);
+ if (tb) {
+ /* the PC is inside the translated code. It means that we have
+ a virtual CPU fault */
+ cpu_restore_state(tb, env, pc, NULL);
+ }
+ }
+ if (retaddr)
+ raise_exception_err(env->exception_index, env->error_code);
+ else
+ raise_exception_err_norestore(env->exception_index, env->error_code);
+ }
+ env = saved_env;
+}
+
+
+/* Secure Virtual Machine helpers */
+
+void helper_stgi(void)
+{
+ env->hflags |= HF_GIF_MASK;
+}
+
+void helper_clgi(void)
+{
+ env->hflags &= ~HF_GIF_MASK;
+}
+
+#if defined(CONFIG_USER_ONLY)
+
+void helper_vmrun(void)
+{
+}
+void helper_vmmcall(void)
+{
+}
+void helper_vmload(void)
+{
+}
+void helper_vmsave(void)
+{
+}
+void helper_skinit(void)
+{
+}
+void helper_invlpga(void)
+{
+}
+void helper_vmexit(uint32_t exit_code, uint64_t exit_info_1)
+{
+}
+void helper_svm_check_intercept_param(uint32_t type, uint64_t param)
+{
+}
+
+void helper_svm_check_io(uint32_t port, uint32_t param,
+ uint32_t next_eip_addend)
+{
+}
+#else
+
+static inline uint32_t
+vmcb2cpu_attrib(uint16_t vmcb_attrib, uint32_t vmcb_base, uint32_t vmcb_limit)
+{
+ return ((vmcb_attrib & 0x00ff) << 8) /* Type, S, DPL, P */
+ | ((vmcb_attrib & 0x0f00) << 12) /* AVL, L, DB, G */
+ | ((vmcb_base >> 16) & 0xff) /* Base 23-16 */
+ | (vmcb_base & 0xff000000) /* Base 31-24 */
+ | (vmcb_limit & 0xf0000); /* Limit 19-16 */
+}
+
+static inline uint16_t cpu2vmcb_attrib(uint32_t cpu_attrib)
+{
+ return ((cpu_attrib >> 8) & 0xff) /* Type, S, DPL, P */
+ | ((cpu_attrib & 0xf00000) >> 12); /* AVL, L, DB, G */
+}
+
+void helper_vmrun(void)
+{
+ target_ulong addr;
+ uint32_t event_inj;
+ uint32_t int_ctl;
+
+ addr = EAX;
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile,"vmrun! " TARGET_FMT_lx "\n", addr);
+
+ env->vm_vmcb = addr;
+
+ /* save the current CPU state in the hsave page */
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.base), env->gdt.base);
+ stl_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.limit), env->gdt.limit);
+
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.base), env->idt.base);
+ stl_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.limit), env->idt.limit);
+
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr0), env->cr[0]);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr2), env->cr[2]);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr3), env->cr[3]);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr4), env->cr[4]);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr8), env->cr[8]);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr6), env->dr[6]);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr7), env->dr[7]);
+
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.efer), env->efer);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rflags), compute_eflags());
+
+ SVM_SAVE_SEG(env->vm_hsave, segs[R_ES], es);
+ SVM_SAVE_SEG(env->vm_hsave, segs[R_CS], cs);
+ SVM_SAVE_SEG(env->vm_hsave, segs[R_SS], ss);
+ SVM_SAVE_SEG(env->vm_hsave, segs[R_DS], ds);
+
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip), EIP);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rsp), ESP);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rax), EAX);
+
+ /* load the interception bitmaps so we do not need to access the
+ vmcb in svm mode */
+ /* We shift all the intercept bits so we can OR them with the TB
+ flags later on */
+ env->intercept = (ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept)) << INTERCEPT_INTR) | INTERCEPT_SVM_MASK;
+ env->intercept_cr_read = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_cr_read));
+ env->intercept_cr_write = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_cr_write));
+ env->intercept_dr_read = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_dr_read));
+ env->intercept_dr_write = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_dr_write));
+ env->intercept_exceptions = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_exceptions));
+
+ env->gdt.base = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.base));
+ env->gdt.limit = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.limit));
+
+ env->idt.base = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.base));
+ env->idt.limit = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.limit));
+
+ /* clear exit_info_2 so we behave like the real hardware */
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2), 0);
+
+ cpu_x86_update_cr0(env, ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr0)));
+ cpu_x86_update_cr4(env, ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr4)));
+ cpu_x86_update_cr3(env, ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr3)));
+ env->cr[2] = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr2));
+ int_ctl = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl));
+ if (int_ctl & V_INTR_MASKING_MASK) {
+ env->cr[8] = int_ctl & V_TPR_MASK;
+ cpu_set_apic_tpr(env, env->cr[8]);
+ if (env->eflags & IF_MASK)
+ env->hflags |= HF_HIF_MASK;
+ }
+
+#ifdef TARGET_X86_64
+ env->efer = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.efer));
+ env->hflags &= ~HF_LMA_MASK;
+ if (env->efer & MSR_EFER_LMA)
+ env->hflags |= HF_LMA_MASK;
+#endif
+ env->eflags = 0;
+ load_eflags(ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rflags)),
+ ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
+ CC_OP = CC_OP_EFLAGS;
+ CC_DST = 0xffffffff;
+
+ SVM_LOAD_SEG(env->vm_vmcb, ES, es);
+ SVM_LOAD_SEG(env->vm_vmcb, CS, cs);
+ SVM_LOAD_SEG(env->vm_vmcb, SS, ss);
+ SVM_LOAD_SEG(env->vm_vmcb, DS, ds);
+
+ EIP = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rip));
+ env->eip = EIP;
+ ESP = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rsp));
+ EAX = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rax));
+ env->dr[7] = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr7));
+ env->dr[6] = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr6));
+ cpu_x86_set_cpl(env, ldub_phys(env->vm_vmcb + offsetof(struct vmcb, save.cpl)));
+
+ /* FIXME: guest state consistency checks */
+
+ switch(ldub_phys(env->vm_vmcb + offsetof(struct vmcb, control.tlb_ctl))) {
+ case TLB_CONTROL_DO_NOTHING:
+ break;
+ case TLB_CONTROL_FLUSH_ALL_ASID:
+ /* FIXME: this is not 100% correct but should work for now */
+ tlb_flush(env, 1);
+ break;
+ }
+
+ helper_stgi();
+
+ /* maybe we need to inject an event */
+ event_inj = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj));
+ if (event_inj & SVM_EVTINJ_VALID) {
+ uint8_t vector = event_inj & SVM_EVTINJ_VEC_MASK;
+ uint16_t valid_err = event_inj & SVM_EVTINJ_VALID_ERR;
+ uint32_t event_inj_err = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj_err));
+ stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj), event_inj & ~SVM_EVTINJ_VALID);
+
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile, "Injecting(%#hx): ", valid_err);
+ /* FIXME: need to implement valid_err */
+ switch (event_inj & SVM_EVTINJ_TYPE_MASK) {
+ case SVM_EVTINJ_TYPE_INTR:
+ env->exception_index = vector;
+ env->error_code = event_inj_err;
+ env->exception_is_int = 0;
+ env->exception_next_eip = -1;
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile, "INTR");
+ break;
+ case SVM_EVTINJ_TYPE_NMI:
+ env->exception_index = vector;
+ env->error_code = event_inj_err;
+ env->exception_is_int = 0;
+ env->exception_next_eip = EIP;
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile, "NMI");
+ break;
+ case SVM_EVTINJ_TYPE_EXEPT:
+ env->exception_index = vector;
+ env->error_code = event_inj_err;
+ env->exception_is_int = 0;
+ env->exception_next_eip = -1;
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile, "EXEPT");
+ break;
+ case SVM_EVTINJ_TYPE_SOFT:
+ env->exception_index = vector;
+ env->error_code = event_inj_err;
+ env->exception_is_int = 1;
+ env->exception_next_eip = EIP;
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile, "SOFT");
+ break;
+ }
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile, " %#x %#x\n", env->exception_index, env->error_code);
+ }
+ if ((int_ctl & V_IRQ_MASK) || (env->intercept & INTERCEPT_VINTR)) {
+ env->interrupt_request |= CPU_INTERRUPT_VIRQ;
+ }
+
+ cpu_loop_exit();
+}
+
+void helper_vmmcall(void)
+{
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile,"vmmcall!\n");
+}
+
+void helper_vmload(void)
+{
+ target_ulong addr;
+ addr = EAX;
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile,"vmload! " TARGET_FMT_lx "\nFS: %016" PRIx64 " | " TARGET_FMT_lx "\n",
+ addr, ldq_phys(addr + offsetof(struct vmcb, save.fs.base)),
+ env->segs[R_FS].base);
+
+ SVM_LOAD_SEG2(addr, segs[R_FS], fs);
+ SVM_LOAD_SEG2(addr, segs[R_GS], gs);
+ SVM_LOAD_SEG2(addr, tr, tr);
+ SVM_LOAD_SEG2(addr, ldt, ldtr);
+
+#ifdef TARGET_X86_64
+ env->kernelgsbase = ldq_phys(addr + offsetof(struct vmcb, save.kernel_gs_base));
+ env->lstar = ldq_phys(addr + offsetof(struct vmcb, save.lstar));
+ env->cstar = ldq_phys(addr + offsetof(struct vmcb, save.cstar));
+ env->fmask = ldq_phys(addr + offsetof(struct vmcb, save.sfmask));
+#endif
+ env->star = ldq_phys(addr + offsetof(struct vmcb, save.star));
+ env->sysenter_cs = ldq_phys(addr + offsetof(struct vmcb, save.sysenter_cs));
+ env->sysenter_esp = ldq_phys(addr + offsetof(struct vmcb, save.sysenter_esp));
+ env->sysenter_eip = ldq_phys(addr + offsetof(struct vmcb, save.sysenter_eip));
+}
+
+void helper_vmsave(void)
+{
+ target_ulong addr;
+ addr = EAX;
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile,"vmsave! " TARGET_FMT_lx "\nFS: %016" PRIx64 " | " TARGET_FMT_lx "\n",
+ addr, ldq_phys(addr + offsetof(struct vmcb, save.fs.base)),
+ env->segs[R_FS].base);
+
+ SVM_SAVE_SEG(addr, segs[R_FS], fs);
+ SVM_SAVE_SEG(addr, segs[R_GS], gs);
+ SVM_SAVE_SEG(addr, tr, tr);
+ SVM_SAVE_SEG(addr, ldt, ldtr);
+
+#ifdef TARGET_X86_64
+ stq_phys(addr + offsetof(struct vmcb, save.kernel_gs_base), env->kernelgsbase);
+ stq_phys(addr + offsetof(struct vmcb, save.lstar), env->lstar);
+ stq_phys(addr + offsetof(struct vmcb, save.cstar), env->cstar);
+ stq_phys(addr + offsetof(struct vmcb, save.sfmask), env->fmask);
+#endif
+ stq_phys(addr + offsetof(struct vmcb, save.star), env->star);
+ stq_phys(addr + offsetof(struct vmcb, save.sysenter_cs), env->sysenter_cs);
+ stq_phys(addr + offsetof(struct vmcb, save.sysenter_esp), env->sysenter_esp);
+ stq_phys(addr + offsetof(struct vmcb, save.sysenter_eip), env->sysenter_eip);
+}
+
+void helper_skinit(void)
+{
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile,"skinit!\n");
+}
+
+void helper_invlpga(void)
+{
+ tlb_flush(env, 0);
+}
+
+void helper_svm_check_intercept_param(uint32_t type, uint64_t param)
+{
+ switch(type) {
+ case SVM_EXIT_READ_CR0 ... SVM_EXIT_READ_CR0 + 8:
+ if (INTERCEPTEDw(_cr_read, (1 << (type - SVM_EXIT_READ_CR0)))) {
+ helper_vmexit(type, param);
+ }
+ break;
+ case SVM_EXIT_READ_DR0 ... SVM_EXIT_READ_DR0 + 8:
+ if (INTERCEPTEDw(_dr_read, (1 << (type - SVM_EXIT_READ_DR0)))) {
+ helper_vmexit(type, param);
+ }
+ break;
+ case SVM_EXIT_WRITE_CR0 ... SVM_EXIT_WRITE_CR0 + 8:
+ if (INTERCEPTEDw(_cr_write, (1 << (type - SVM_EXIT_WRITE_CR0)))) {
+ helper_vmexit(type, param);
+ }
+ break;
+ case SVM_EXIT_WRITE_DR0 ... SVM_EXIT_WRITE_DR0 + 8:
+ if (INTERCEPTEDw(_dr_write, (1 << (type - SVM_EXIT_WRITE_DR0)))) {
+ helper_vmexit(type, param);
+ }
+ break;
+ case SVM_EXIT_EXCP_BASE ... SVM_EXIT_EXCP_BASE + 16:
+ if (INTERCEPTEDl(_exceptions, (1 << (type - SVM_EXIT_EXCP_BASE)))) {
+ helper_vmexit(type, param);
+ }
+ break;
+ case SVM_EXIT_IOIO:
+ break;
+
+ case SVM_EXIT_MSR:
+ if (INTERCEPTED(1ULL << INTERCEPT_MSR_PROT)) {
+ /* FIXME: this should be read in at vmrun (faster this way?) */
+ uint64_t addr = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.msrpm_base_pa));
+ uint32_t t0, t1;
+ switch((uint32_t)ECX) {
+ case 0 ... 0x1fff:
+ t0 = (ECX * 2) % 8;
+ t1 = ECX / 8;
+ break;
+ case 0xc0000000 ... 0xc0001fff:
+ t0 = (8192 + ECX - 0xc0000000) * 2;
+ t1 = (t0 / 8);
+ t0 %= 8;
+ break;
+ case 0xc0010000 ... 0xc0011fff:
+ t0 = (16384 + ECX - 0xc0010000) * 2;
+ t1 = (t0 / 8);
+ t0 %= 8;
+ break;
+ default:
+ helper_vmexit(type, param);
+ t0 = 0;
+ t1 = 0;
+ break;
+ }
+ if (ldub_phys(addr + t1) & ((1 << param) << t0))
+ helper_vmexit(type, param);
+ }
+ break;
+ default:
+ if (INTERCEPTED((1ULL << ((type - SVM_EXIT_INTR) + INTERCEPT_INTR)))) {
+ helper_vmexit(type, param);
+ }
+ break;
+ }
+}
+
+void helper_svm_check_io(uint32_t port, uint32_t param,
+ uint32_t next_eip_addend)
+{
+ if (INTERCEPTED(1ULL << INTERCEPT_IOIO_PROT)) {
+ /* FIXME: this should be read in at vmrun (faster this way?) */
+ uint64_t addr = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.iopm_base_pa));
+ uint16_t mask = (1 << ((param >> 4) & 7)) - 1;
+ if(lduw_phys(addr + port / 8) & (mask << (port & 7))) {
+ /* next EIP */
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
+ env->eip + next_eip_addend);
+ helper_vmexit(SVM_EXIT_IOIO, param | (port << 16));
+ }
+ }
+}
+
+/* Note: currently only 32 bits of exit_code are used */
+void helper_vmexit(uint32_t exit_code, uint64_t exit_info_1)
+{
+ uint32_t int_ctl;
+
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile,"vmexit(%08x, %016" PRIx64 ", %016" PRIx64 ", " TARGET_FMT_lx ")!\n",
+ exit_code, exit_info_1,
+ ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2)),
+ EIP);
+
+ if(env->hflags & HF_INHIBIT_IRQ_MASK) {
+ stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_state), SVM_INTERRUPT_SHADOW_MASK);
+ env->hflags &= ~HF_INHIBIT_IRQ_MASK;
+ } else {
+ stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_state), 0);
+ }
+
+ /* Save the VM state in the vmcb */
+ SVM_SAVE_SEG(env->vm_vmcb, segs[R_ES], es);
+ SVM_SAVE_SEG(env->vm_vmcb, segs[R_CS], cs);
+ SVM_SAVE_SEG(env->vm_vmcb, segs[R_SS], ss);
+ SVM_SAVE_SEG(env->vm_vmcb, segs[R_DS], ds);
+
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.base), env->gdt.base);
+ stl_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.limit), env->gdt.limit);
+
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.base), env->idt.base);
+ stl_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.limit), env->idt.limit);
+
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.efer), env->efer);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr0), env->cr[0]);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr2), env->cr[2]);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr3), env->cr[3]);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr4), env->cr[4]);
+
+ if ((int_ctl = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl))) & V_INTR_MASKING_MASK) {
+ int_ctl &= ~V_TPR_MASK;
+ int_ctl |= env->cr[8] & V_TPR_MASK;
+ stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl), int_ctl);
+ }
+
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rflags), compute_eflags());
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rip), env->eip);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rsp), ESP);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rax), EAX);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr7), env->dr[7]);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr6), env->dr[6]);
+ stb_phys(env->vm_vmcb + offsetof(struct vmcb, save.cpl), env->hflags & HF_CPL_MASK);
+
+ /* Reload the host state from vm_hsave */
+ env->hflags &= ~HF_HIF_MASK;
+ env->intercept = 0;
+ env->intercept_exceptions = 0;
+ env->interrupt_request &= ~CPU_INTERRUPT_VIRQ;
+
+ env->gdt.base = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.base));
+ env->gdt.limit = ldl_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.limit));
+
+ env->idt.base = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.base));
+ env->idt.limit = ldl_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.limit));
+
+ cpu_x86_update_cr0(env, ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr0)) | CR0_PE_MASK);
+ cpu_x86_update_cr4(env, ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr4)));
+ cpu_x86_update_cr3(env, ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr3)));
+ if (int_ctl & V_INTR_MASKING_MASK) {
+ env->cr[8] = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr8));
+ cpu_set_apic_tpr(env, env->cr[8]);
+ }
+ /* we need to set the efer after the crs so the hidden flags get set properly */
+#ifdef TARGET_X86_64
+ env->efer = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.efer));
+ env->hflags &= ~HF_LMA_MASK;
+ if (env->efer & MSR_EFER_LMA)
+ env->hflags |= HF_LMA_MASK;
+#endif
+
+ env->eflags = 0;
+ load_eflags(ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rflags)),
+ ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
+ CC_OP = CC_OP_EFLAGS;
+
+ SVM_LOAD_SEG(env->vm_hsave, ES, es);
+ SVM_LOAD_SEG(env->vm_hsave, CS, cs);
+ SVM_LOAD_SEG(env->vm_hsave, SS, ss);
+ SVM_LOAD_SEG(env->vm_hsave, DS, ds);
+
+ EIP = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip));
+ ESP = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rsp));
+ EAX = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rax));
+
+ env->dr[6] = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr6));
+ env->dr[7] = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr7));
+
+ /* other setups */
+ cpu_x86_set_cpl(env, 0);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_code), exit_code);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_1), exit_info_1);
+
+ helper_clgi();
+ /* FIXME: Resets the current ASID register to zero (host ASID). */
+
+ /* Clears the V_IRQ and V_INTR_MASKING bits inside the processor. */
+
+ /* Clears the TSC_OFFSET inside the processor. */
+
+ /* If the host is in PAE mode, the processor reloads the host's PDPEs
+ from the page table indicated the host's CR3. If the PDPEs contain
+ illegal state, the processor causes a shutdown. */
+
+ /* Forces CR0.PE = 1, RFLAGS.VM = 0. */
+ env->cr[0] |= CR0_PE_MASK;
+ env->eflags &= ~VM_MASK;
+
+ /* Disables all breakpoints in the host DR7 register. */
+
+ /* Checks the reloaded host state for consistency. */
+
+ /* If the host's rIP reloaded by #VMEXIT is outside the limit of the
+ host's code segment or non-canonical (in the case of long mode), a
+ #GP fault is delivered inside the host.) */
+
+ /* remove any pending exception */
+ env->exception_index = -1;
+ env->error_code = 0;
+ env->old_exception = -1;
+
+ cpu_loop_exit();
+}
+
+#endif
+
+/* MMX/SSE */
+/* XXX: optimize by storing fptt and fptags in the static cpu state */
+void helper_enter_mmx(void)
+{
+ env->fpstt = 0;
+ *(uint32_t *)(env->fptags) = 0;
+ *(uint32_t *)(env->fptags + 4) = 0;
+}
+
+void helper_emms(void)
+{
+ /* set to empty state */
+ *(uint32_t *)(env->fptags) = 0x01010101;
+ *(uint32_t *)(env->fptags + 4) = 0x01010101;
+}
+
+/* XXX: suppress */
+void helper_movq(uint64_t *d, uint64_t *s)
+{
+ *d = *s;
+}
+
+#define SHIFT 0
+#include "ops_sse.h"
+
+#define SHIFT 1
+#include "ops_sse.h"
+
+#define SHIFT 0
+#include "helper_template.h"
+#undef SHIFT
+
+#define SHIFT 1
+#include "helper_template.h"
+#undef SHIFT
+
+#define SHIFT 2
+#include "helper_template.h"
+#undef SHIFT
+
+#ifdef TARGET_X86_64
+
+#define SHIFT 3
+#include "helper_template.h"
+#undef SHIFT
+
+#endif
+
+/* bit operations */
+target_ulong helper_bsf(target_ulong t0)
+{
+ int count;
+ target_ulong res;
+
+ res = t0;
+ count = 0;
+ while ((res & 1) == 0) {
+ count++;
+ res >>= 1;
+ }
+ return count;
+}
+
+target_ulong helper_bsr(target_ulong t0)
+{
+ int count;
+ target_ulong res, mask;
+
+ res = t0;
+ count = TARGET_LONG_BITS - 1;
+ mask = (target_ulong)1 << (TARGET_LONG_BITS - 1);
+ while ((res & mask) == 0) {
+ count--;
+ res <<= 1;
+ }
+ return count;
+}
+
+
+static int compute_all_eflags(void)
+{
+ return CC_SRC;
+}
+
+static int compute_c_eflags(void)
+{
+ return CC_SRC & CC_C;
+}
+
+CCTable cc_table[CC_OP_NB] = {
+ [CC_OP_DYNAMIC] = { /* should never happen */ },
+
+ [CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags },
+
+ [CC_OP_MULB] = { compute_all_mulb, compute_c_mull },
+ [CC_OP_MULW] = { compute_all_mulw, compute_c_mull },
+ [CC_OP_MULL] = { compute_all_mull, compute_c_mull },
+
+ [CC_OP_ADDB] = { compute_all_addb, compute_c_addb },
+ [CC_OP_ADDW] = { compute_all_addw, compute_c_addw },
+ [CC_OP_ADDL] = { compute_all_addl, compute_c_addl },
+
+ [CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb },
+ [CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw },
+ [CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl },
+
+ [CC_OP_SUBB] = { compute_all_subb, compute_c_subb },
+ [CC_OP_SUBW] = { compute_all_subw, compute_c_subw },
+ [CC_OP_SUBL] = { compute_all_subl, compute_c_subl },
+
+ [CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb },
+ [CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw },
+ [CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl },
+
+ [CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb },
+ [CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw },
+ [CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl },
+
+ [CC_OP_INCB] = { compute_all_incb, compute_c_incl },
+ [CC_OP_INCW] = { compute_all_incw, compute_c_incl },
+ [CC_OP_INCL] = { compute_all_incl, compute_c_incl },
+
+ [CC_OP_DECB] = { compute_all_decb, compute_c_incl },
+ [CC_OP_DECW] = { compute_all_decw, compute_c_incl },
+ [CC_OP_DECL] = { compute_all_decl, compute_c_incl },
+
+ [CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb },
+ [CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw },
+ [CC_OP_SHLL] = { compute_all_shll, compute_c_shll },
+
+ [CC_OP_SARB] = { compute_all_sarb, compute_c_sarl },
+ [CC_OP_SARW] = { compute_all_sarw, compute_c_sarl },
+ [CC_OP_SARL] = { compute_all_sarl, compute_c_sarl },
+
+#ifdef TARGET_X86_64
+ [CC_OP_MULQ] = { compute_all_mulq, compute_c_mull },
+
+ [CC_OP_ADDQ] = { compute_all_addq, compute_c_addq },
+
+ [CC_OP_ADCQ] = { compute_all_adcq, compute_c_adcq },
+
+ [CC_OP_SUBQ] = { compute_all_subq, compute_c_subq },
+
+ [CC_OP_SBBQ] = { compute_all_sbbq, compute_c_sbbq },
+
+ [CC_OP_LOGICQ] = { compute_all_logicq, compute_c_logicq },
+
+ [CC_OP_INCQ] = { compute_all_incq, compute_c_incl },
+
+ [CC_OP_DECQ] = { compute_all_decq, compute_c_incl },
+
+ [CC_OP_SHLQ] = { compute_all_shlq, compute_c_shlq },
+
+ [CC_OP_SARQ] = { compute_all_sarq, compute_c_sarl },
+#endif
+};
+
projects / qemu / commitdiff