2 * i386 helpers (without register variable usage)
4 * Copyright (c) 2003 Fabrice Bellard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
29 #include "qemu-common.h"
34 /* feature flags taken from "Intel Processor Identification and the CPUID
35 * Instruction" and AMD's "CPUID Specification". In cases of disagreement
36 * about feature names, the Linux name is used. */
37 static const char *feature_name[] = {
38 "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
39 "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
40 "pat", "pse36", "pn" /* Intel psn */, "clflush" /* Intel clfsh */, NULL, "ds" /* Intel dts */, "acpi", "mmx",
41 "fxsr", "sse", "sse2", "ss", "ht" /* Intel htt */, "tm", "ia64", "pbe",
43 static const char *ext_feature_name[] = {
44 "pni" /* Intel,AMD sse3 */, NULL, NULL, "monitor", "ds_cpl", "vmx", NULL /* Linux smx */, "est",
45 "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
46 NULL, NULL, "dca", NULL, NULL, NULL, NULL, "popcnt",
47 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
49 static const char *ext2_feature_name[] = {
50 "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
51 "cx8" /* AMD CMPXCHG8B */, "apic", NULL, "syscall", "mtrr", "pge", "mca", "cmov",
52 "pat", "pse36", NULL, NULL /* Linux mp */, "nx" /* Intel xd */, NULL, "mmxext", "mmx",
53 "fxsr", "fxsr_opt" /* AMD ffxsr */, "pdpe1gb" /* AMD Page1GB */, "rdtscp", NULL, "lm" /* Intel 64 */, "3dnowext", "3dnow",
55 static const char *ext3_feature_name[] = {
56 "lahf_lm" /* AMD LahfSahf */, "cmp_legacy", "svm", "extapic" /* AMD ExtApicSpace */, "cr8legacy" /* AMD AltMovCr8 */, "abm", "sse4a", "misalignsse",
57 "3dnowprefetch", "osvw", NULL /* Linux ibs */, NULL, "skinit", "wdt", NULL, NULL,
58 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
59 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
62 static void add_flagname_to_bitmaps(char *flagname, uint32_t *features,
63 uint32_t *ext_features,
64 uint32_t *ext2_features,
65 uint32_t *ext3_features)
70 for ( i = 0 ; i < 32 ; i++ )
71 if (feature_name[i] && !strcmp (flagname, feature_name[i])) {
75 for ( i = 0 ; i < 32 ; i++ )
76 if (ext_feature_name[i] && !strcmp (flagname, ext_feature_name[i])) {
77 *ext_features |= 1 << i;
80 for ( i = 0 ; i < 32 ; i++ )
81 if (ext2_feature_name[i] && !strcmp (flagname, ext2_feature_name[i])) {
82 *ext2_features |= 1 << i;
85 for ( i = 0 ; i < 32 ; i++ )
86 if (ext3_feature_name[i] && !strcmp (flagname, ext3_feature_name[i])) {
87 *ext3_features |= 1 << i;
91 fprintf(stderr, "CPU feature %s not found\n", flagname);
95 static void kvm_trim_features(uint32_t *features, uint32_t supported,
101 for (i = 0; i < 32; ++i) {
103 if ((*features & mask) && !(supported & mask)) {
109 typedef struct x86_def_t {
112 uint32_t vendor1, vendor2, vendor3;
116 uint32_t features, ext_features, ext2_features, ext3_features;
121 #define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
122 #define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
123 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX)
124 #define PENTIUM2_FEATURES (PENTIUM_FEATURES | CPUID_PAE | CPUID_SEP | \
125 CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
126 CPUID_PSE36 | CPUID_FXSR)
127 #define PENTIUM3_FEATURES (PENTIUM2_FEATURES | CPUID_SSE)
128 #define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
129 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \
130 CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \
131 CPUID_PAE | CPUID_SEP | CPUID_APIC)
132 static x86_def_t x86_defs[] = {
137 .vendor1 = CPUID_VENDOR_AMD_1,
138 .vendor2 = CPUID_VENDOR_AMD_2,
139 .vendor3 = CPUID_VENDOR_AMD_3,
143 .features = PPRO_FEATURES |
144 /* these features are needed for Win64 and aren't fully implemented */
145 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
146 /* this feature is needed for Solaris and isn't fully implemented */
148 .ext_features = CPUID_EXT_SSE3,
149 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
150 CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX |
151 CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
152 .ext3_features = CPUID_EXT3_SVM,
153 .xlevel = 0x8000000A,
154 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
159 .vendor1 = CPUID_VENDOR_AMD_1,
160 .vendor2 = CPUID_VENDOR_AMD_2,
161 .vendor3 = CPUID_VENDOR_AMD_3,
165 /* Missing: CPUID_VME, CPUID_HT */
166 .features = PPRO_FEATURES |
167 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
169 /* Missing: CPUID_EXT_CX16, CPUID_EXT_POPCNT */
170 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR,
171 /* Missing: CPUID_EXT2_PDPE1GB, CPUID_EXT2_RDTSCP */
172 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
173 CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX |
174 CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT | CPUID_EXT2_MMXEXT |
176 /* Missing: CPUID_EXT3_LAHF_LM, CPUID_EXT3_CMP_LEG, CPUID_EXT3_EXTAPIC,
177 CPUID_EXT3_CR8LEG, CPUID_EXT3_ABM, CPUID_EXT3_SSE4A,
178 CPUID_EXT3_MISALIGNSSE, CPUID_EXT3_3DNOWPREFETCH,
179 CPUID_EXT3_OSVW, CPUID_EXT3_IBS */
180 .ext3_features = CPUID_EXT3_SVM,
181 .xlevel = 0x8000001A,
182 .model_id = "AMD Phenom(tm) 9550 Quad-Core Processor"
190 /* The original CPU also implements these features:
191 CPUID_VME, CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
192 CPUID_TM, CPUID_PBE */
193 .features = PPRO_FEATURES |
194 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
196 /* The original CPU also implements these ext features:
197 CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_VMX, CPUID_EXT_EST,
198 CPUID_EXT_TM2, CPUID_EXT_CX16, CPUID_EXT_XTPR, CPUID_EXT_PDCM */
199 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR | CPUID_EXT_SSSE3,
200 .ext2_features = CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
201 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
202 .xlevel = 0x80000008,
203 .model_id = "Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz",
212 .features = PPRO_FEATURES,
213 .ext_features = CPUID_EXT_SSE3,
215 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
223 /* The original CPU also implements these features:
224 CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
225 CPUID_TM, CPUID_PBE */
226 .features = PPRO_FEATURES | CPUID_VME |
227 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA,
228 /* The original CPU also implements these ext features:
229 CPUID_EXT_VMX, CPUID_EXT_EST, CPUID_EXT_TM2, CPUID_EXT_XTPR,
231 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR,
232 .ext2_features = CPUID_EXT2_NX,
233 .xlevel = 0x80000008,
234 .model_id = "Genuine Intel(R) CPU T2600 @ 2.16GHz",
242 .features = I486_FEATURES,
251 .features = PENTIUM_FEATURES,
260 .features = PENTIUM2_FEATURES,
269 .features = PENTIUM3_FEATURES,
275 .vendor1 = 0x68747541, /* "Auth" */
276 .vendor2 = 0x69746e65, /* "enti" */
277 .vendor3 = 0x444d4163, /* "cAMD" */
281 .features = PPRO_FEATURES | CPUID_PSE36 | CPUID_VME | CPUID_MTRR | CPUID_MCA,
282 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_MMXEXT | CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
283 .xlevel = 0x80000008,
284 /* XXX: put another string ? */
285 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
289 /* original is on level 10 */
294 .features = PPRO_FEATURES |
295 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA | CPUID_VME,
296 /* Missing: CPUID_DTS | CPUID_ACPI | CPUID_SS |
297 * CPUID_HT | CPUID_TM | CPUID_PBE */
298 /* Some CPUs got no CPUID_SEP */
299 .ext_features = CPUID_EXT_MONITOR |
300 CPUID_EXT_SSE3 /* PNI */ | CPUID_EXT_SSSE3,
301 /* Missing: CPUID_EXT_DSCPL | CPUID_EXT_EST |
302 * CPUID_EXT_TM2 | CPUID_EXT_XTPR */
303 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_NX,
304 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
305 .xlevel = 0x8000000A,
306 .model_id = "Intel(R) Atom(TM) CPU N270 @ 1.60GHz",
310 static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
315 char *s = strdup(cpu_model);
316 char *featurestr, *name = strtok(s, ",");
317 uint32_t plus_features = 0, plus_ext_features = 0, plus_ext2_features = 0, plus_ext3_features = 0;
318 uint32_t minus_features = 0, minus_ext_features = 0, minus_ext2_features = 0, minus_ext3_features = 0;
319 int family = -1, model = -1, stepping = -1;
322 for (i = 0; i < ARRAY_SIZE(x86_defs); i++) {
323 if (strcmp(name, x86_defs[i].name) == 0) {
330 memcpy(x86_cpu_def, def, sizeof(*def));
332 featurestr = strtok(NULL, ",");
336 if (featurestr[0] == '+') {
337 add_flagname_to_bitmaps(featurestr + 1, &plus_features, &plus_ext_features, &plus_ext2_features, &plus_ext3_features);
338 } else if (featurestr[0] == '-') {
339 add_flagname_to_bitmaps(featurestr + 1, &minus_features, &minus_ext_features, &minus_ext2_features, &minus_ext3_features);
340 } else if ((val = strchr(featurestr, '='))) {
342 if (!strcmp(featurestr, "family")) {
344 family = strtol(val, &err, 10);
345 if (!*val || *err || family < 0) {
346 fprintf(stderr, "bad numerical value %s\n", val);
349 x86_cpu_def->family = family;
350 } else if (!strcmp(featurestr, "model")) {
352 model = strtol(val, &err, 10);
353 if (!*val || *err || model < 0 || model > 0xff) {
354 fprintf(stderr, "bad numerical value %s\n", val);
357 x86_cpu_def->model = model;
358 } else if (!strcmp(featurestr, "stepping")) {
360 stepping = strtol(val, &err, 10);
361 if (!*val || *err || stepping < 0 || stepping > 0xf) {
362 fprintf(stderr, "bad numerical value %s\n", val);
365 x86_cpu_def->stepping = stepping;
366 } else if (!strcmp(featurestr, "vendor")) {
367 if (strlen(val) != 12) {
368 fprintf(stderr, "vendor string must be 12 chars long\n");
371 x86_cpu_def->vendor1 = 0;
372 x86_cpu_def->vendor2 = 0;
373 x86_cpu_def->vendor3 = 0;
374 for(i = 0; i < 4; i++) {
375 x86_cpu_def->vendor1 |= ((uint8_t)val[i ]) << (8 * i);
376 x86_cpu_def->vendor2 |= ((uint8_t)val[i + 4]) << (8 * i);
377 x86_cpu_def->vendor3 |= ((uint8_t)val[i + 8]) << (8 * i);
379 } else if (!strcmp(featurestr, "model_id")) {
380 pstrcpy(x86_cpu_def->model_id, sizeof(x86_cpu_def->model_id),
383 fprintf(stderr, "unrecognized feature %s\n", featurestr);
387 fprintf(stderr, "feature string `%s' not in format (+feature|-feature|feature=xyz)\n", featurestr);
390 featurestr = strtok(NULL, ",");
392 x86_cpu_def->features |= plus_features;
393 x86_cpu_def->ext_features |= plus_ext_features;
394 x86_cpu_def->ext2_features |= plus_ext2_features;
395 x86_cpu_def->ext3_features |= plus_ext3_features;
396 x86_cpu_def->features &= ~minus_features;
397 x86_cpu_def->ext_features &= ~minus_ext_features;
398 x86_cpu_def->ext2_features &= ~minus_ext2_features;
399 x86_cpu_def->ext3_features &= ~minus_ext3_features;
408 void x86_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
412 for (i = 0; i < ARRAY_SIZE(x86_defs); i++)
413 (*cpu_fprintf)(f, "x86 %16s\n", x86_defs[i].name);
416 static int cpu_x86_register (CPUX86State *env, const char *cpu_model)
418 x86_def_t def1, *def = &def1;
420 if (cpu_x86_find_by_name(def, cpu_model) < 0)
423 env->cpuid_vendor1 = def->vendor1;
424 env->cpuid_vendor2 = def->vendor2;
425 env->cpuid_vendor3 = def->vendor3;
427 env->cpuid_vendor1 = CPUID_VENDOR_INTEL_1;
428 env->cpuid_vendor2 = CPUID_VENDOR_INTEL_2;
429 env->cpuid_vendor3 = CPUID_VENDOR_INTEL_3;
431 env->cpuid_level = def->level;
432 if (def->family > 0x0f)
433 env->cpuid_version = 0xf00 | ((def->family - 0x0f) << 20);
435 env->cpuid_version = def->family << 8;
436 env->cpuid_version |= ((def->model & 0xf) << 4) | ((def->model >> 4) << 16);
437 env->cpuid_version |= def->stepping;
438 env->cpuid_features = def->features;
439 env->pat = 0x0007040600070406ULL;
440 env->cpuid_ext_features = def->ext_features;
441 env->cpuid_ext2_features = def->ext2_features;
442 env->cpuid_xlevel = def->xlevel;
443 env->cpuid_ext3_features = def->ext3_features;
445 const char *model_id = def->model_id;
449 len = strlen(model_id);
450 for(i = 0; i < 48; i++) {
454 c = (uint8_t)model_id[i];
455 env->cpuid_model[i >> 2] |= c << (8 * (i & 3));
461 /* NOTE: must be called outside the CPU execute loop */
462 void cpu_reset(CPUX86State *env)
466 if (qemu_loglevel_mask(CPU_LOG_RESET)) {
467 qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
468 log_cpu_state(env, X86_DUMP_FPU | X86_DUMP_CCOP);
471 memset(env, 0, offsetof(CPUX86State, breakpoints));
475 env->old_exception = -1;
477 /* init to reset state */
479 #ifdef CONFIG_SOFTMMU
480 env->hflags |= HF_SOFTMMU_MASK;
482 env->hflags2 |= HF2_GIF_MASK;
484 cpu_x86_update_cr0(env, 0x60000010);
485 env->a20_mask = ~0x0;
486 env->smbase = 0x30000;
488 env->idt.limit = 0xffff;
489 env->gdt.limit = 0xffff;
490 env->ldt.limit = 0xffff;
491 env->ldt.flags = DESC_P_MASK | (2 << DESC_TYPE_SHIFT);
492 env->tr.limit = 0xffff;
493 env->tr.flags = DESC_P_MASK | (11 << DESC_TYPE_SHIFT);
495 cpu_x86_load_seg_cache(env, R_CS, 0xf000, 0xffff0000, 0xffff,
496 DESC_P_MASK | DESC_S_MASK | DESC_CS_MASK | DESC_R_MASK);
497 cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffff,
498 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK);
499 cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffff,
500 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK);
501 cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffff,
502 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK);
503 cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffff,
504 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK);
505 cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffff,
506 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK);
509 env->regs[R_EDX] = env->cpuid_version;
514 for(i = 0;i < 8; i++)
520 memset(env->dr, 0, sizeof(env->dr));
521 env->dr[6] = DR6_FIXED_1;
522 env->dr[7] = DR7_FIXED_1;
523 cpu_breakpoint_remove_all(env, BP_CPU);
524 cpu_watchpoint_remove_all(env, BP_CPU);
527 void cpu_x86_close(CPUX86State *env)
532 /***********************************************************/
535 static const char *cc_op_str[] = {
591 cpu_x86_dump_seg_cache(CPUState *env, FILE *f,
592 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
593 const char *name, struct SegmentCache *sc)
596 if (env->hflags & HF_CS64_MASK) {
597 cpu_fprintf(f, "%-3s=%04x %016" PRIx64 " %08x %08x", name,
598 sc->selector, sc->base, sc->limit, sc->flags);
602 cpu_fprintf(f, "%-3s=%04x %08x %08x %08x", name, sc->selector,
603 (uint32_t)sc->base, sc->limit, sc->flags);
606 if (!(env->hflags & HF_PE_MASK) || !(sc->flags & DESC_P_MASK))
609 cpu_fprintf(f, " DPL=%d ", (sc->flags & DESC_DPL_MASK) >> DESC_DPL_SHIFT);
610 if (sc->flags & DESC_S_MASK) {
611 if (sc->flags & DESC_CS_MASK) {
612 cpu_fprintf(f, (sc->flags & DESC_L_MASK) ? "CS64" :
613 ((sc->flags & DESC_B_MASK) ? "CS32" : "CS16"));
614 cpu_fprintf(f, " [%c%c", (sc->flags & DESC_C_MASK) ? 'C' : '-',
615 (sc->flags & DESC_R_MASK) ? 'R' : '-');
617 cpu_fprintf(f, (sc->flags & DESC_B_MASK) ? "DS " : "DS16");
618 cpu_fprintf(f, " [%c%c", (sc->flags & DESC_E_MASK) ? 'E' : '-',
619 (sc->flags & DESC_W_MASK) ? 'W' : '-');
621 cpu_fprintf(f, "%c]", (sc->flags & DESC_A_MASK) ? 'A' : '-');
623 static const char *sys_type_name[2][16] = {
625 "Reserved", "TSS16-avl", "LDT", "TSS16-busy",
626 "CallGate16", "TaskGate", "IntGate16", "TrapGate16",
627 "Reserved", "TSS32-avl", "Reserved", "TSS32-busy",
628 "CallGate32", "Reserved", "IntGate32", "TrapGate32"
631 "<hiword>", "Reserved", "LDT", "Reserved", "Reserved",
632 "Reserved", "Reserved", "Reserved", "Reserved",
633 "TSS64-avl", "Reserved", "TSS64-busy", "CallGate64",
634 "Reserved", "IntGate64", "TrapGate64"
637 cpu_fprintf(f, sys_type_name[(env->hflags & HF_LMA_MASK) ? 1 : 0]
638 [(sc->flags & DESC_TYPE_MASK)
639 >> DESC_TYPE_SHIFT]);
642 cpu_fprintf(f, "\n");
645 void cpu_dump_state(CPUState *env, FILE *f,
646 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
651 static const char *seg_name[6] = { "ES", "CS", "SS", "DS", "FS", "GS" };
654 kvm_arch_get_registers(env);
656 eflags = env->eflags;
658 if (env->hflags & HF_CS64_MASK) {
660 "RAX=%016" PRIx64 " RBX=%016" PRIx64 " RCX=%016" PRIx64 " RDX=%016" PRIx64 "\n"
661 "RSI=%016" PRIx64 " RDI=%016" PRIx64 " RBP=%016" PRIx64 " RSP=%016" PRIx64 "\n"
662 "R8 =%016" PRIx64 " R9 =%016" PRIx64 " R10=%016" PRIx64 " R11=%016" PRIx64 "\n"
663 "R12=%016" PRIx64 " R13=%016" PRIx64 " R14=%016" PRIx64 " R15=%016" PRIx64 "\n"
664 "RIP=%016" PRIx64 " RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
682 eflags & DF_MASK ? 'D' : '-',
683 eflags & CC_O ? 'O' : '-',
684 eflags & CC_S ? 'S' : '-',
685 eflags & CC_Z ? 'Z' : '-',
686 eflags & CC_A ? 'A' : '-',
687 eflags & CC_P ? 'P' : '-',
688 eflags & CC_C ? 'C' : '-',
689 env->hflags & HF_CPL_MASK,
690 (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
691 (int)(env->a20_mask >> 20) & 1,
692 (env->hflags >> HF_SMM_SHIFT) & 1,
697 cpu_fprintf(f, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
698 "ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
699 "EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
700 (uint32_t)env->regs[R_EAX],
701 (uint32_t)env->regs[R_EBX],
702 (uint32_t)env->regs[R_ECX],
703 (uint32_t)env->regs[R_EDX],
704 (uint32_t)env->regs[R_ESI],
705 (uint32_t)env->regs[R_EDI],
706 (uint32_t)env->regs[R_EBP],
707 (uint32_t)env->regs[R_ESP],
708 (uint32_t)env->eip, eflags,
709 eflags & DF_MASK ? 'D' : '-',
710 eflags & CC_O ? 'O' : '-',
711 eflags & CC_S ? 'S' : '-',
712 eflags & CC_Z ? 'Z' : '-',
713 eflags & CC_A ? 'A' : '-',
714 eflags & CC_P ? 'P' : '-',
715 eflags & CC_C ? 'C' : '-',
716 env->hflags & HF_CPL_MASK,
717 (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
718 (int)(env->a20_mask >> 20) & 1,
719 (env->hflags >> HF_SMM_SHIFT) & 1,
723 for(i = 0; i < 6; i++) {
724 cpu_x86_dump_seg_cache(env, f, cpu_fprintf, seg_name[i],
727 cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "LDT", &env->ldt);
728 cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "TR", &env->tr);
731 if (env->hflags & HF_LMA_MASK) {
732 cpu_fprintf(f, "GDT= %016" PRIx64 " %08x\n",
733 env->gdt.base, env->gdt.limit);
734 cpu_fprintf(f, "IDT= %016" PRIx64 " %08x\n",
735 env->idt.base, env->idt.limit);
736 cpu_fprintf(f, "CR0=%08x CR2=%016" PRIx64 " CR3=%016" PRIx64 " CR4=%08x\n",
737 (uint32_t)env->cr[0],
740 (uint32_t)env->cr[4]);
741 for(i = 0; i < 4; i++)
742 cpu_fprintf(f, "DR%d=%016" PRIx64 " ", i, env->dr[i]);
743 cpu_fprintf(f, "\nDR6=%016" PRIx64 " DR7=%016" PRIx64 "\n",
744 env->dr[6], env->dr[7]);
748 cpu_fprintf(f, "GDT= %08x %08x\n",
749 (uint32_t)env->gdt.base, env->gdt.limit);
750 cpu_fprintf(f, "IDT= %08x %08x\n",
751 (uint32_t)env->idt.base, env->idt.limit);
752 cpu_fprintf(f, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
753 (uint32_t)env->cr[0],
754 (uint32_t)env->cr[2],
755 (uint32_t)env->cr[3],
756 (uint32_t)env->cr[4]);
757 for(i = 0; i < 4; i++)
758 cpu_fprintf(f, "DR%d=%08x ", i, env->dr[i]);
759 cpu_fprintf(f, "\nDR6=%08x DR7=%08x\n", env->dr[6], env->dr[7]);
761 if (flags & X86_DUMP_CCOP) {
762 if ((unsigned)env->cc_op < CC_OP_NB)
763 snprintf(cc_op_name, sizeof(cc_op_name), "%s", cc_op_str[env->cc_op]);
765 snprintf(cc_op_name, sizeof(cc_op_name), "[%d]", env->cc_op);
767 if (env->hflags & HF_CS64_MASK) {
768 cpu_fprintf(f, "CCS=%016" PRIx64 " CCD=%016" PRIx64 " CCO=%-8s\n",
769 env->cc_src, env->cc_dst,
774 cpu_fprintf(f, "CCS=%08x CCD=%08x CCO=%-8s\n",
775 (uint32_t)env->cc_src, (uint32_t)env->cc_dst,
779 if (flags & X86_DUMP_FPU) {
782 for(i = 0; i < 8; i++) {
783 fptag |= ((!env->fptags[i]) << i);
785 cpu_fprintf(f, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
787 (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11,
792 #if defined(USE_X86LDOUBLE)
800 tmp.d = env->fpregs[i].d;
801 cpu_fprintf(f, "FPR%d=%016" PRIx64 " %04x",
802 i, tmp.l.lower, tmp.l.upper);
804 cpu_fprintf(f, "FPR%d=%016" PRIx64,
805 i, env->fpregs[i].mmx.q);
808 cpu_fprintf(f, "\n");
812 if (env->hflags & HF_CS64_MASK)
817 cpu_fprintf(f, "XMM%02d=%08x%08x%08x%08x",
819 env->xmm_regs[i].XMM_L(3),
820 env->xmm_regs[i].XMM_L(2),
821 env->xmm_regs[i].XMM_L(1),
822 env->xmm_regs[i].XMM_L(0));
824 cpu_fprintf(f, "\n");
831 /***********************************************************/
833 /* XXX: add PGE support */
835 void cpu_x86_set_a20(CPUX86State *env, int a20_state)
837 a20_state = (a20_state != 0);
838 if (a20_state != ((env->a20_mask >> 20) & 1)) {
839 #if defined(DEBUG_MMU)
840 printf("A20 update: a20=%d\n", a20_state);
842 /* if the cpu is currently executing code, we must unlink it and
843 all the potentially executing TB */
844 cpu_interrupt(env, CPU_INTERRUPT_EXITTB);
846 /* when a20 is changed, all the MMU mappings are invalid, so
847 we must flush everything */
849 env->a20_mask = (~0x100000) | (a20_state << 20);
853 void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0)
857 #if defined(DEBUG_MMU)
858 printf("CR0 update: CR0=0x%08x\n", new_cr0);
860 if ((new_cr0 & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK)) !=
861 (env->cr[0] & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK))) {
866 if (!(env->cr[0] & CR0_PG_MASK) && (new_cr0 & CR0_PG_MASK) &&
867 (env->efer & MSR_EFER_LME)) {
868 /* enter in long mode */
869 /* XXX: generate an exception */
870 if (!(env->cr[4] & CR4_PAE_MASK))
872 env->efer |= MSR_EFER_LMA;
873 env->hflags |= HF_LMA_MASK;
874 } else if ((env->cr[0] & CR0_PG_MASK) && !(new_cr0 & CR0_PG_MASK) &&
875 (env->efer & MSR_EFER_LMA)) {
877 env->efer &= ~MSR_EFER_LMA;
878 env->hflags &= ~(HF_LMA_MASK | HF_CS64_MASK);
879 env->eip &= 0xffffffff;
882 env->cr[0] = new_cr0 | CR0_ET_MASK;
884 /* update PE flag in hidden flags */
885 pe_state = (env->cr[0] & CR0_PE_MASK);
886 env->hflags = (env->hflags & ~HF_PE_MASK) | (pe_state << HF_PE_SHIFT);
887 /* ensure that ADDSEG is always set in real mode */
888 env->hflags |= ((pe_state ^ 1) << HF_ADDSEG_SHIFT);
889 /* update FPU flags */
890 env->hflags = (env->hflags & ~(HF_MP_MASK | HF_EM_MASK | HF_TS_MASK)) |
891 ((new_cr0 << (HF_MP_SHIFT - 1)) & (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK));
894 /* XXX: in legacy PAE mode, generate a GPF if reserved bits are set in
896 void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3)
898 env->cr[3] = new_cr3;
899 if (env->cr[0] & CR0_PG_MASK) {
900 #if defined(DEBUG_MMU)
901 printf("CR3 update: CR3=" TARGET_FMT_lx "\n", new_cr3);
907 void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4)
909 #if defined(DEBUG_MMU)
910 printf("CR4 update: CR4=%08x\n", (uint32_t)env->cr[4]);
912 if ((new_cr4 & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK)) !=
913 (env->cr[4] & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK))) {
917 if (!(env->cpuid_features & CPUID_SSE))
918 new_cr4 &= ~CR4_OSFXSR_MASK;
919 if (new_cr4 & CR4_OSFXSR_MASK)
920 env->hflags |= HF_OSFXSR_MASK;
922 env->hflags &= ~HF_OSFXSR_MASK;
924 env->cr[4] = new_cr4;
927 #if defined(CONFIG_USER_ONLY)
929 int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
930 int is_write, int mmu_idx, int is_softmmu)
932 /* user mode only emulation */
935 env->error_code = (is_write << PG_ERROR_W_BIT);
936 env->error_code |= PG_ERROR_U_MASK;
937 env->exception_index = EXCP0E_PAGE;
941 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
948 /* XXX: This value should match the one returned by CPUID
950 #if defined(CONFIG_KQEMU)
951 #define PHYS_ADDR_MASK 0xfffff000LL
953 # if defined(TARGET_X86_64)
954 # define PHYS_ADDR_MASK 0xfffffff000LL
956 # define PHYS_ADDR_MASK 0xffffff000LL
961 -1 = cannot handle fault
962 0 = nothing more to do
963 1 = generate PF fault
964 2 = soft MMU activation required for this block
966 int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
967 int is_write1, int mmu_idx, int is_softmmu)
970 target_ulong pde_addr, pte_addr;
971 int error_code, is_dirty, prot, page_size, ret, is_write, is_user;
972 target_phys_addr_t paddr;
973 uint32_t page_offset;
974 target_ulong vaddr, virt_addr;
976 is_user = mmu_idx == MMU_USER_IDX;
977 #if defined(DEBUG_MMU)
978 printf("MMU fault: addr=" TARGET_FMT_lx " w=%d u=%d eip=" TARGET_FMT_lx "\n",
979 addr, is_write1, is_user, env->eip);
981 is_write = is_write1 & 1;
983 if (!(env->cr[0] & CR0_PG_MASK)) {
985 virt_addr = addr & TARGET_PAGE_MASK;
986 prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
991 if (env->cr[4] & CR4_PAE_MASK) {
993 target_ulong pdpe_addr;
996 if (env->hflags & HF_LMA_MASK) {
997 uint64_t pml4e_addr, pml4e;
1000 /* test virtual address sign extension */
1001 sext = (int64_t)addr >> 47;
1002 if (sext != 0 && sext != -1) {
1003 env->error_code = 0;
1004 env->exception_index = EXCP0D_GPF;
1008 pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
1010 pml4e = ldq_phys(pml4e_addr);
1011 if (!(pml4e & PG_PRESENT_MASK)) {
1015 if (!(env->efer & MSR_EFER_NXE) && (pml4e & PG_NX_MASK)) {
1016 error_code = PG_ERROR_RSVD_MASK;
1019 if (!(pml4e & PG_ACCESSED_MASK)) {
1020 pml4e |= PG_ACCESSED_MASK;
1021 stl_phys_notdirty(pml4e_addr, pml4e);
1023 ptep = pml4e ^ PG_NX_MASK;
1024 pdpe_addr = ((pml4e & PHYS_ADDR_MASK) + (((addr >> 30) & 0x1ff) << 3)) &
1026 pdpe = ldq_phys(pdpe_addr);
1027 if (!(pdpe & PG_PRESENT_MASK)) {
1031 if (!(env->efer & MSR_EFER_NXE) && (pdpe & PG_NX_MASK)) {
1032 error_code = PG_ERROR_RSVD_MASK;
1035 ptep &= pdpe ^ PG_NX_MASK;
1036 if (!(pdpe & PG_ACCESSED_MASK)) {
1037 pdpe |= PG_ACCESSED_MASK;
1038 stl_phys_notdirty(pdpe_addr, pdpe);
1043 /* XXX: load them when cr3 is loaded ? */
1044 pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
1046 pdpe = ldq_phys(pdpe_addr);
1047 if (!(pdpe & PG_PRESENT_MASK)) {
1051 ptep = PG_NX_MASK | PG_USER_MASK | PG_RW_MASK;
1054 pde_addr = ((pdpe & PHYS_ADDR_MASK) + (((addr >> 21) & 0x1ff) << 3)) &
1056 pde = ldq_phys(pde_addr);
1057 if (!(pde & PG_PRESENT_MASK)) {
1061 if (!(env->efer & MSR_EFER_NXE) && (pde & PG_NX_MASK)) {
1062 error_code = PG_ERROR_RSVD_MASK;
1065 ptep &= pde ^ PG_NX_MASK;
1066 if (pde & PG_PSE_MASK) {
1068 page_size = 2048 * 1024;
1070 if ((ptep & PG_NX_MASK) && is_write1 == 2)
1071 goto do_fault_protect;
1073 if (!(ptep & PG_USER_MASK))
1074 goto do_fault_protect;
1075 if (is_write && !(ptep & PG_RW_MASK))
1076 goto do_fault_protect;
1078 if ((env->cr[0] & CR0_WP_MASK) &&
1079 is_write && !(ptep & PG_RW_MASK))
1080 goto do_fault_protect;
1082 is_dirty = is_write && !(pde & PG_DIRTY_MASK);
1083 if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
1084 pde |= PG_ACCESSED_MASK;
1086 pde |= PG_DIRTY_MASK;
1087 stl_phys_notdirty(pde_addr, pde);
1089 /* align to page_size */
1090 pte = pde & ((PHYS_ADDR_MASK & ~(page_size - 1)) | 0xfff);
1091 virt_addr = addr & ~(page_size - 1);
1094 if (!(pde & PG_ACCESSED_MASK)) {
1095 pde |= PG_ACCESSED_MASK;
1096 stl_phys_notdirty(pde_addr, pde);
1098 pte_addr = ((pde & PHYS_ADDR_MASK) + (((addr >> 12) & 0x1ff) << 3)) &
1100 pte = ldq_phys(pte_addr);
1101 if (!(pte & PG_PRESENT_MASK)) {
1105 if (!(env->efer & MSR_EFER_NXE) && (pte & PG_NX_MASK)) {
1106 error_code = PG_ERROR_RSVD_MASK;
1109 /* combine pde and pte nx, user and rw protections */
1110 ptep &= pte ^ PG_NX_MASK;
1112 if ((ptep & PG_NX_MASK) && is_write1 == 2)
1113 goto do_fault_protect;
1115 if (!(ptep & PG_USER_MASK))
1116 goto do_fault_protect;
1117 if (is_write && !(ptep & PG_RW_MASK))
1118 goto do_fault_protect;
1120 if ((env->cr[0] & CR0_WP_MASK) &&
1121 is_write && !(ptep & PG_RW_MASK))
1122 goto do_fault_protect;
1124 is_dirty = is_write && !(pte & PG_DIRTY_MASK);
1125 if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
1126 pte |= PG_ACCESSED_MASK;
1128 pte |= PG_DIRTY_MASK;
1129 stl_phys_notdirty(pte_addr, pte);
1132 virt_addr = addr & ~0xfff;
1133 pte = pte & (PHYS_ADDR_MASK | 0xfff);
1138 /* page directory entry */
1139 pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) &
1141 pde = ldl_phys(pde_addr);
1142 if (!(pde & PG_PRESENT_MASK)) {
1146 /* if PSE bit is set, then we use a 4MB page */
1147 if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1148 page_size = 4096 * 1024;
1150 if (!(pde & PG_USER_MASK))
1151 goto do_fault_protect;
1152 if (is_write && !(pde & PG_RW_MASK))
1153 goto do_fault_protect;
1155 if ((env->cr[0] & CR0_WP_MASK) &&
1156 is_write && !(pde & PG_RW_MASK))
1157 goto do_fault_protect;
1159 is_dirty = is_write && !(pde & PG_DIRTY_MASK);
1160 if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
1161 pde |= PG_ACCESSED_MASK;
1163 pde |= PG_DIRTY_MASK;
1164 stl_phys_notdirty(pde_addr, pde);
1167 pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
1169 virt_addr = addr & ~(page_size - 1);
1171 if (!(pde & PG_ACCESSED_MASK)) {
1172 pde |= PG_ACCESSED_MASK;
1173 stl_phys_notdirty(pde_addr, pde);
1176 /* page directory entry */
1177 pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) &
1179 pte = ldl_phys(pte_addr);
1180 if (!(pte & PG_PRESENT_MASK)) {
1184 /* combine pde and pte user and rw protections */
1187 if (!(ptep & PG_USER_MASK))
1188 goto do_fault_protect;
1189 if (is_write && !(ptep & PG_RW_MASK))
1190 goto do_fault_protect;
1192 if ((env->cr[0] & CR0_WP_MASK) &&
1193 is_write && !(ptep & PG_RW_MASK))
1194 goto do_fault_protect;
1196 is_dirty = is_write && !(pte & PG_DIRTY_MASK);
1197 if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
1198 pte |= PG_ACCESSED_MASK;
1200 pte |= PG_DIRTY_MASK;
1201 stl_phys_notdirty(pte_addr, pte);
1204 virt_addr = addr & ~0xfff;
1207 /* the page can be put in the TLB */
1209 if (!(ptep & PG_NX_MASK))
1211 if (pte & PG_DIRTY_MASK) {
1212 /* only set write access if already dirty... otherwise wait
1215 if (ptep & PG_RW_MASK)
1218 if (!(env->cr[0] & CR0_WP_MASK) ||
1219 (ptep & PG_RW_MASK))
1224 pte = pte & env->a20_mask;
1226 /* Even if 4MB pages, we map only one 4KB page in the cache to
1227 avoid filling it too fast */
1228 page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
1229 paddr = (pte & TARGET_PAGE_MASK) + page_offset;
1230 vaddr = virt_addr + page_offset;
1232 ret = tlb_set_page_exec(env, vaddr, paddr, prot, mmu_idx, is_softmmu);
1235 error_code = PG_ERROR_P_MASK;
1237 error_code |= (is_write << PG_ERROR_W_BIT);
1239 error_code |= PG_ERROR_U_MASK;
1240 if (is_write1 == 2 &&
1241 (env->efer & MSR_EFER_NXE) &&
1242 (env->cr[4] & CR4_PAE_MASK))
1243 error_code |= PG_ERROR_I_D_MASK;
1244 if (env->intercept_exceptions & (1 << EXCP0E_PAGE)) {
1245 /* cr2 is not modified in case of exceptions */
1246 stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
1251 env->error_code = error_code;
1252 env->exception_index = EXCP0E_PAGE;
1256 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
1258 target_ulong pde_addr, pte_addr;
1260 target_phys_addr_t paddr;
1261 uint32_t page_offset;
1264 if (env->cr[4] & CR4_PAE_MASK) {
1265 target_ulong pdpe_addr;
1268 #ifdef TARGET_X86_64
1269 if (env->hflags & HF_LMA_MASK) {
1270 uint64_t pml4e_addr, pml4e;
1273 /* test virtual address sign extension */
1274 sext = (int64_t)addr >> 47;
1275 if (sext != 0 && sext != -1)
1278 pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
1280 pml4e = ldq_phys(pml4e_addr);
1281 if (!(pml4e & PG_PRESENT_MASK))
1284 pdpe_addr = ((pml4e & ~0xfff) + (((addr >> 30) & 0x1ff) << 3)) &
1286 pdpe = ldq_phys(pdpe_addr);
1287 if (!(pdpe & PG_PRESENT_MASK))
1292 pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
1294 pdpe = ldq_phys(pdpe_addr);
1295 if (!(pdpe & PG_PRESENT_MASK))
1299 pde_addr = ((pdpe & ~0xfff) + (((addr >> 21) & 0x1ff) << 3)) &
1301 pde = ldq_phys(pde_addr);
1302 if (!(pde & PG_PRESENT_MASK)) {
1305 if (pde & PG_PSE_MASK) {
1307 page_size = 2048 * 1024;
1308 pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
1311 pte_addr = ((pde & ~0xfff) + (((addr >> 12) & 0x1ff) << 3)) &
1314 pte = ldq_phys(pte_addr);
1316 if (!(pte & PG_PRESENT_MASK))
1321 if (!(env->cr[0] & CR0_PG_MASK)) {
1325 /* page directory entry */
1326 pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask;
1327 pde = ldl_phys(pde_addr);
1328 if (!(pde & PG_PRESENT_MASK))
1330 if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1331 pte = pde & ~0x003ff000; /* align to 4MB */
1332 page_size = 4096 * 1024;
1334 /* page directory entry */
1335 pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask;
1336 pte = ldl_phys(pte_addr);
1337 if (!(pte & PG_PRESENT_MASK))
1342 pte = pte & env->a20_mask;
1345 page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
1346 paddr = (pte & TARGET_PAGE_MASK) + page_offset;
1350 void hw_breakpoint_insert(CPUState *env, int index)
1354 switch (hw_breakpoint_type(env->dr[7], index)) {
1356 if (hw_breakpoint_enabled(env->dr[7], index))
1357 err = cpu_breakpoint_insert(env, env->dr[index], BP_CPU,
1358 &env->cpu_breakpoint[index]);
1361 type = BP_CPU | BP_MEM_WRITE;
1364 /* No support for I/O watchpoints yet */
1367 type = BP_CPU | BP_MEM_ACCESS;
1369 err = cpu_watchpoint_insert(env, env->dr[index],
1370 hw_breakpoint_len(env->dr[7], index),
1371 type, &env->cpu_watchpoint[index]);
1375 env->cpu_breakpoint[index] = NULL;
1378 void hw_breakpoint_remove(CPUState *env, int index)
1380 if (!env->cpu_breakpoint[index])
1382 switch (hw_breakpoint_type(env->dr[7], index)) {
1384 if (hw_breakpoint_enabled(env->dr[7], index))
1385 cpu_breakpoint_remove_by_ref(env, env->cpu_breakpoint[index]);
1389 cpu_watchpoint_remove_by_ref(env, env->cpu_watchpoint[index]);
1392 /* No support for I/O watchpoints yet */
1397 int check_hw_breakpoints(CPUState *env, int force_dr6_update)
1401 int hit_enabled = 0;
1403 dr6 = env->dr[6] & ~0xf;
1404 for (reg = 0; reg < 4; reg++) {
1405 type = hw_breakpoint_type(env->dr[7], reg);
1406 if ((type == 0 && env->dr[reg] == env->eip) ||
1407 ((type & 1) && env->cpu_watchpoint[reg] &&
1408 (env->cpu_watchpoint[reg]->flags & BP_WATCHPOINT_HIT))) {
1410 if (hw_breakpoint_enabled(env->dr[7], reg))
1414 if (hit_enabled || force_dr6_update)
1419 static CPUDebugExcpHandler *prev_debug_excp_handler;
1421 void raise_exception(int exception_index);
1423 static void breakpoint_handler(CPUState *env)
1427 if (env->watchpoint_hit) {
1428 if (env->watchpoint_hit->flags & BP_CPU) {
1429 env->watchpoint_hit = NULL;
1430 if (check_hw_breakpoints(env, 0))
1431 raise_exception(EXCP01_DB);
1433 cpu_resume_from_signal(env, NULL);
1436 TAILQ_FOREACH(bp, &env->breakpoints, entry)
1437 if (bp->pc == env->eip) {
1438 if (bp->flags & BP_CPU) {
1439 check_hw_breakpoints(env, 1);
1440 raise_exception(EXCP01_DB);
1445 if (prev_debug_excp_handler)
1446 prev_debug_excp_handler(env);
1448 #endif /* !CONFIG_USER_ONLY */
1450 static void host_cpuid(uint32_t function, uint32_t count,
1451 uint32_t *eax, uint32_t *ebx,
1452 uint32_t *ecx, uint32_t *edx)
1454 #if defined(CONFIG_KVM)
1458 asm volatile("cpuid"
1459 : "=a"(vec[0]), "=b"(vec[1]),
1460 "=c"(vec[2]), "=d"(vec[3])
1461 : "0"(function), "c"(count) : "cc");
1463 asm volatile("pusha \n\t"
1465 "mov %%eax, 0(%2) \n\t"
1466 "mov %%ebx, 4(%2) \n\t"
1467 "mov %%ecx, 8(%2) \n\t"
1468 "mov %%edx, 12(%2) \n\t"
1470 : : "a"(function), "c"(count), "S"(vec)
1485 void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
1486 uint32_t *eax, uint32_t *ebx,
1487 uint32_t *ecx, uint32_t *edx)
1489 /* test if maximum index reached */
1490 if (index & 0x80000000) {
1491 if (index > env->cpuid_xlevel)
1492 index = env->cpuid_level;
1494 if (index > env->cpuid_level)
1495 index = env->cpuid_level;
1500 *eax = env->cpuid_level;
1501 *ebx = env->cpuid_vendor1;
1502 *edx = env->cpuid_vendor2;
1503 *ecx = env->cpuid_vendor3;
1505 /* sysenter isn't supported on compatibility mode on AMD. and syscall
1506 * isn't supported in compatibility mode on Intel. so advertise the
1507 * actuall cpu, and say goodbye to migration between different vendors
1508 * is you use compatibility mode. */
1510 host_cpuid(0, 0, NULL, ebx, ecx, edx);
1513 *eax = env->cpuid_version;
1514 *ebx = (env->cpuid_apic_id << 24) | 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
1515 *ecx = env->cpuid_ext_features;
1516 *edx = env->cpuid_features;
1518 /* "Hypervisor present" bit required for Microsoft SVVP */
1523 /* cache info: needed for Pentium Pro compatibility */
1530 /* cache info: needed for Core compatibility */
1532 case 0: /* L1 dcache info */
1538 case 1: /* L1 icache info */
1544 case 2: /* L2 cache info */
1550 default: /* end of info */
1559 /* mwait info: needed for Core compatibility */
1560 *eax = 0; /* Smallest monitor-line size in bytes */
1561 *ebx = 0; /* Largest monitor-line size in bytes */
1562 *ecx = CPUID_MWAIT_EMX | CPUID_MWAIT_IBE;
1566 /* Thermal and Power Leaf */
1573 /* Direct Cache Access Information Leaf */
1574 *eax = 0; /* Bits 0-31 in DCA_CAP MSR */
1580 /* Architectural Performance Monitoring Leaf */
1587 *eax = env->cpuid_xlevel;
1588 *ebx = env->cpuid_vendor1;
1589 *edx = env->cpuid_vendor2;
1590 *ecx = env->cpuid_vendor3;
1593 *eax = env->cpuid_features;
1595 *ecx = env->cpuid_ext3_features;
1596 *edx = env->cpuid_ext2_features;
1598 if (kvm_enabled()) {
1599 uint32_t h_eax, h_edx;
1601 host_cpuid(index, 0, &h_eax, NULL, NULL, &h_edx);
1603 /* disable CPU features that the host does not support */
1606 if ((h_edx & 0x20000000) == 0 /* || !lm_capable_kernel */)
1607 *edx &= ~0x20000000;
1609 if ((h_edx & 0x00000800) == 0)
1610 *edx &= ~0x00000800;
1612 if ((h_edx & 0x00100000) == 0)
1613 *edx &= ~0x00100000;
1615 /* disable CPU features that KVM cannot support */
1620 *edx &= ~0xc0000000;
1626 *eax = env->cpuid_model[(index - 0x80000002) * 4 + 0];
1627 *ebx = env->cpuid_model[(index - 0x80000002) * 4 + 1];
1628 *ecx = env->cpuid_model[(index - 0x80000002) * 4 + 2];
1629 *edx = env->cpuid_model[(index - 0x80000002) * 4 + 3];
1632 /* cache info (L1 cache) */
1639 /* cache info (L2 cache) */
1646 /* virtual & phys address size in low 2 bytes. */
1647 /* XXX: This value must match the one used in the MMU code. */
1648 if (env->cpuid_ext2_features & CPUID_EXT2_LM) {
1649 /* 64 bit processor */
1650 #if defined(CONFIG_KQEMU)
1651 *eax = 0x00003020; /* 48 bits virtual, 32 bits physical */
1653 /* XXX: The physical address space is limited to 42 bits in exec.c. */
1654 *eax = 0x00003028; /* 48 bits virtual, 40 bits physical */
1657 #if defined(CONFIG_KQEMU)
1658 *eax = 0x00000020; /* 32 bits physical */
1660 if (env->cpuid_features & CPUID_PSE36)
1661 *eax = 0x00000024; /* 36 bits physical */
1663 *eax = 0x00000020; /* 32 bits physical */
1671 *eax = 0x00000001; /* SVM Revision */
1672 *ebx = 0x00000010; /* nr of ASIDs */
1674 *edx = 0; /* optional features */
1677 /* reserved values: zero */
1686 CPUX86State *cpu_x86_init(const char *cpu_model)
1691 env = qemu_mallocz(sizeof(CPUX86State));
1693 env->cpu_model_str = cpu_model;
1695 /* init various static tables */
1698 optimize_flags_init();
1699 #ifndef CONFIG_USER_ONLY
1700 prev_debug_excp_handler =
1701 cpu_set_debug_excp_handler(breakpoint_handler);
1704 if (cpu_x86_register(env, cpu_model) < 0) {
1713 qemu_init_vcpu(env);
1715 if (kvm_enabled()) {
1716 kvm_trim_features(&env->cpuid_features,
1717 kvm_arch_get_supported_cpuid(env, 1, R_EDX),
1719 kvm_trim_features(&env->cpuid_ext_features,
1720 kvm_arch_get_supported_cpuid(env, 1, R_ECX),
1722 kvm_trim_features(&env->cpuid_ext2_features,
1723 kvm_arch_get_supported_cpuid(env, 0x80000001, R_EDX),
1725 kvm_trim_features(&env->cpuid_ext3_features,
1726 kvm_arch_get_supported_cpuid(env, 0x80000001, R_ECX),