/*
* internal execution defines for qemu
- *
+ *
* Copyright (c) 2003 Fabrice Bellard
*
* This library is free software; you can redistribute it and/or
*
* 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
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
*/
-/* allow to see translation results - the slowdown should be negligible, so we leave it */
-#define DEBUG_DISAS
+#ifndef _EXEC_ALL_H_
+#define _EXEC_ALL_H_
-#ifndef glue
-#define xglue(x, y) x ## y
-#define glue(x, y) xglue(x, y)
-#define stringify(s) tostring(s)
-#define tostring(s) #s
-#endif
+#include "qemu-common.h"
-#if __GNUC__ < 3
-#define __builtin_expect(x, n) (x)
-#endif
-
-#ifdef __i386__
-#define REGPARM(n) __attribute((regparm(n)))
-#else
-#define REGPARM(n)
-#endif
+/* allow to see translation results - the slowdown should be negligible, so we leave it */
+#define DEBUG_DISAS
/* is_jmp field values */
#define DISAS_NEXT 0 /* next instruction can be analyzed */
#define DISAS_UPDATE 2 /* cpu state was modified dynamically */
#define DISAS_TB_JUMP 3 /* only pc was modified statically */
-struct TranslationBlock;
+typedef struct TranslationBlock TranslationBlock;
/* XXX: make safe guess about sizes */
-#define MAX_OP_PER_INSTR 32
+#define MAX_OP_PER_INSTR 64
+/* A Call op needs up to 6 + 2N parameters (N = number of arguments). */
+#define MAX_OPC_PARAM 10
#define OPC_BUF_SIZE 512
#define OPC_MAX_SIZE (OPC_BUF_SIZE - MAX_OP_PER_INSTR)
-#define OPPARAM_BUF_SIZE (OPC_BUF_SIZE * 3)
+/* Maximum size a TCG op can expand to. This is complicated because a
+ single op may require several host instructions and regirster reloads.
+ For now take a wild guess at 128 bytes, which should allow at least
+ a couple of fixup instructions per argument. */
+#define TCG_MAX_OP_SIZE 128
+
+#define OPPARAM_BUF_SIZE (OPC_BUF_SIZE * MAX_OPC_PARAM)
-extern uint16_t gen_opc_buf[OPC_BUF_SIZE];
-extern uint32_t gen_opparam_buf[OPPARAM_BUF_SIZE];
-extern long gen_labels[OPC_BUF_SIZE];
-extern int nb_gen_labels;
extern target_ulong gen_opc_pc[OPC_BUF_SIZE];
extern target_ulong gen_opc_npc[OPC_BUF_SIZE];
extern uint8_t gen_opc_cc_op[OPC_BUF_SIZE];
extern uint8_t gen_opc_instr_start[OPC_BUF_SIZE];
+extern uint16_t gen_opc_icount[OPC_BUF_SIZE];
extern target_ulong gen_opc_jump_pc[2];
+extern uint32_t gen_opc_hflags[OPC_BUF_SIZE];
-typedef void (GenOpFunc)(void);
-typedef void (GenOpFunc1)(long);
-typedef void (GenOpFunc2)(long, long);
-typedef void (GenOpFunc3)(long, long, long);
-
-#if defined(TARGET_I386)
-
-void optimize_flags_init(void);
-
-#endif
+#include "qemu-log.h"
-extern FILE *logfile;
-extern int loglevel;
+void gen_intermediate_code(CPUState *env, struct TranslationBlock *tb);
+void gen_intermediate_code_pc(CPUState *env, struct TranslationBlock *tb);
+void gen_pc_load(CPUState *env, struct TranslationBlock *tb,
+ unsigned long searched_pc, int pc_pos, void *puc);
-int gen_intermediate_code(CPUState *env, struct TranslationBlock *tb);
-int gen_intermediate_code_pc(CPUState *env, struct TranslationBlock *tb);
-void dump_ops(const uint16_t *opc_buf, const uint32_t *opparam_buf);
+unsigned long code_gen_max_block_size(void);
+void cpu_gen_init(void);
int cpu_gen_code(CPUState *env, struct TranslationBlock *tb,
- int max_code_size, int *gen_code_size_ptr);
-int cpu_restore_state(struct TranslationBlock *tb,
+ int *gen_code_size_ptr);
+int cpu_restore_state(struct TranslationBlock *tb,
CPUState *env, unsigned long searched_pc,
void *puc);
-int cpu_gen_code_copy(CPUState *env, struct TranslationBlock *tb,
- int max_code_size, int *gen_code_size_ptr);
-int cpu_restore_state_copy(struct TranslationBlock *tb,
+int cpu_restore_state_copy(struct TranslationBlock *tb,
CPUState *env, unsigned long searched_pc,
void *puc);
void cpu_resume_from_signal(CPUState *env1, void *puc);
-void cpu_exec_init(void);
-int page_unprotect(unsigned long address, unsigned long pc, void *puc);
-void tb_invalidate_phys_page_range(target_ulong start, target_ulong end,
+void cpu_io_recompile(CPUState *env, void *retaddr);
+TranslationBlock *tb_gen_code(CPUState *env,
+ target_ulong pc, target_ulong cs_base, int flags,
+ int cflags);
+void cpu_exec_init(CPUState *env);
+void QEMU_NORETURN cpu_loop_exit(void);
+int page_unprotect(target_ulong address, unsigned long pc, void *puc);
+void tb_invalidate_phys_page_range(target_phys_addr_t start, target_phys_addr_t end,
int is_cpu_write_access);
void tb_invalidate_page_range(target_ulong start, target_ulong end);
void tlb_flush_page(CPUState *env, target_ulong addr);
void tlb_flush(CPUState *env, int flush_global);
-int tlb_set_page(CPUState *env, target_ulong vaddr,
- target_phys_addr_t paddr, int prot,
- int is_user, int is_softmmu);
+int tlb_set_page_exec(CPUState *env, target_ulong vaddr,
+ target_phys_addr_t paddr, int prot,
+ int mmu_idx, int is_softmmu);
+static inline int tlb_set_page(CPUState *env1, target_ulong vaddr,
+ target_phys_addr_t paddr, int prot,
+ int mmu_idx, int is_softmmu)
+{
+ if (prot & PAGE_READ)
+ prot |= PAGE_EXEC;
+ return tlb_set_page_exec(env1, vaddr, paddr, prot, mmu_idx, is_softmmu);
+}
-#define CODE_GEN_MAX_SIZE 65536
#define CODE_GEN_ALIGN 16 /* must be >= of the size of a icache line */
-#define CODE_GEN_HASH_BITS 15
-#define CODE_GEN_HASH_SIZE (1 << CODE_GEN_HASH_BITS)
-
#define CODE_GEN_PHYS_HASH_BITS 15
#define CODE_GEN_PHYS_HASH_SIZE (1 << CODE_GEN_PHYS_HASH_BITS)
-/* maximum total translate dcode allocated */
-
-/* NOTE: the translated code area cannot be too big because on some
- archs the range of "fast" function calls is limited. Here is a
- summary of the ranges:
-
- i386 : signed 32 bits
- arm : signed 26 bits
- ppc : signed 24 bits
- sparc : signed 32 bits
- alpha : signed 23 bits
-*/
-
-#if defined(__alpha__)
-#define CODE_GEN_BUFFER_SIZE (2 * 1024 * 1024)
-#elif defined(__ia64)
-#define CODE_GEN_BUFFER_SIZE (4 * 1024 * 1024) /* range of addl */
-#elif defined(__powerpc__)
-#define CODE_GEN_BUFFER_SIZE (6 * 1024 * 1024)
-#else
-#define CODE_GEN_BUFFER_SIZE (16 * 1024 * 1024)
-#endif
-
-//#define CODE_GEN_BUFFER_SIZE (128 * 1024)
+#define MIN_CODE_GEN_BUFFER_SIZE (1024 * 1024)
/* estimated block size for TB allocation */
/* XXX: use a per code average code fragment size and modulate it
#define CODE_GEN_AVG_BLOCK_SIZE 64
#endif
-#define CODE_GEN_MAX_BLOCKS (CODE_GEN_BUFFER_SIZE / CODE_GEN_AVG_BLOCK_SIZE)
-
-#if defined(__powerpc__)
+#if defined(_ARCH_PPC) || defined(__x86_64__) || defined(__arm__)
#define USE_DIRECT_JUMP
#endif
#if defined(__i386__) && !defined(_WIN32)
#define USE_DIRECT_JUMP
#endif
-typedef struct TranslationBlock {
+struct TranslationBlock {
target_ulong pc; /* simulated PC corresponding to this block (EIP + CS base) */
target_ulong cs_base; /* CS base for this block */
- unsigned int flags; /* flags defining in which context the code was generated */
+ uint64_t flags; /* flags defining in which context the code was generated */
uint16_t size; /* size of target code for this block (1 <=
size <= TARGET_PAGE_SIZE) */
uint16_t cflags; /* compile flags */
-#define CF_CODE_COPY 0x0001 /* block was generated in code copy mode */
-#define CF_TB_FP_USED 0x0002 /* fp ops are used in the TB */
-#define CF_FP_USED 0x0004 /* fp ops are used in the TB or in a chained TB */
-#define CF_SINGLE_INSN 0x0008 /* compile only a single instruction */
+#define CF_COUNT_MASK 0x7fff
+#define CF_LAST_IO 0x8000 /* Last insn may be an IO access. */
uint8_t *tc_ptr; /* pointer to the translated code */
- struct TranslationBlock *hash_next; /* next matching tb for virtual address */
/* next matching tb for physical address. */
- struct TranslationBlock *phys_hash_next;
+ struct TranslationBlock *phys_hash_next;
/* first and second physical page containing code. The lower bit
of the pointer tells the index in page_next[] */
- struct TranslationBlock *page_next[2];
- target_ulong page_addr[2];
+ struct TranslationBlock *page_next[2];
+ target_ulong page_addr[2];
/* the following data are used to directly call another TB from
the code of this one. */
#ifdef USE_DIRECT_JUMP
uint16_t tb_jmp_offset[4]; /* offset of jump instruction */
#else
- uint32_t tb_next[2]; /* address of jump generated code */
+ unsigned long tb_next[2]; /* address of jump generated code */
#endif
/* list of TBs jumping to this one. This is a circular list using
the two least significant bits of the pointers to tell what is
the next pointer: 0 = jmp_next[0], 1 = jmp_next[1], 2 =
jmp_first */
- struct TranslationBlock *jmp_next[2];
+ struct TranslationBlock *jmp_next[2];
struct TranslationBlock *jmp_first;
-} TranslationBlock;
+ uint32_t icount;
+};
-static inline unsigned int tb_hash_func(target_ulong pc)
+static inline unsigned int tb_jmp_cache_hash_page(target_ulong pc)
{
- return pc & (CODE_GEN_HASH_SIZE - 1);
+ target_ulong tmp;
+ tmp = pc ^ (pc >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS));
+ return (tmp >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS)) & TB_JMP_PAGE_MASK;
+}
+
+static inline unsigned int tb_jmp_cache_hash_func(target_ulong pc)
+{
+ target_ulong tmp;
+ tmp = pc ^ (pc >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS));
+ return (((tmp >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS)) & TB_JMP_PAGE_MASK)
+ | (tmp & TB_JMP_ADDR_MASK));
}
static inline unsigned int tb_phys_hash_func(unsigned long pc)
}
TranslationBlock *tb_alloc(target_ulong pc);
+void tb_free(TranslationBlock *tb);
void tb_flush(CPUState *env);
-void tb_link(TranslationBlock *tb);
-void tb_link_phys(TranslationBlock *tb,
+void tb_link_phys(TranslationBlock *tb,
target_ulong phys_pc, target_ulong phys_page2);
+void tb_phys_invalidate(TranslationBlock *tb, target_ulong page_addr);
-extern TranslationBlock *tb_hash[CODE_GEN_HASH_SIZE];
extern TranslationBlock *tb_phys_hash[CODE_GEN_PHYS_HASH_SIZE];
-
-extern uint8_t code_gen_buffer[CODE_GEN_BUFFER_SIZE];
extern uint8_t *code_gen_ptr;
-
-/* find a translation block in the translation cache. If not found,
- return NULL and the pointer to the last element of the list in pptb */
-static inline TranslationBlock *tb_find(TranslationBlock ***pptb,
- target_ulong pc,
- target_ulong cs_base,
- unsigned int flags)
-{
- TranslationBlock **ptb, *tb;
- unsigned int h;
-
- h = tb_hash_func(pc);
- ptb = &tb_hash[h];
- for(;;) {
- tb = *ptb;
- if (!tb)
- break;
- if (tb->pc == pc && tb->cs_base == cs_base && tb->flags == flags)
- return tb;
- ptb = &tb->hash_next;
- }
- *pptb = ptb;
- return NULL;
-}
-
+extern int code_gen_max_blocks;
#if defined(USE_DIRECT_JUMP)
-#if defined(__powerpc__)
+#if defined(_ARCH_PPC)
+extern void ppc_tb_set_jmp_target(unsigned long jmp_addr, unsigned long addr);
+#define tb_set_jmp_target1 ppc_tb_set_jmp_target
+#elif defined(__i386__) || defined(__x86_64__)
static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr)
{
- uint32_t val, *ptr;
-
/* patch the branch destination */
- ptr = (uint32_t *)jmp_addr;
- val = *ptr;
- val = (val & ~0x03fffffc) | ((addr - jmp_addr) & 0x03fffffc);
- *ptr = val;
- /* flush icache */
- asm volatile ("dcbst 0,%0" : : "r"(ptr) : "memory");
- asm volatile ("sync" : : : "memory");
- asm volatile ("icbi 0,%0" : : "r"(ptr) : "memory");
- asm volatile ("sync" : : : "memory");
- asm volatile ("isync" : : : "memory");
+ *(uint32_t *)jmp_addr = addr - (jmp_addr + 4);
+ /* no need to flush icache explicitly */
}
-#elif defined(__i386__)
+#elif defined(__arm__)
static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr)
{
- /* patch the branch destination */
- *(uint32_t *)jmp_addr = addr - (jmp_addr + 4);
- /* no need to flush icache explicitely */
+#if QEMU_GNUC_PREREQ(4, 1)
+ void __clear_cache(char *beg, char *end);
+#else
+ register unsigned long _beg __asm ("a1");
+ register unsigned long _end __asm ("a2");
+ register unsigned long _flg __asm ("a3");
+#endif
+
+ /* we could use a ldr pc, [pc, #-4] kind of branch and avoid the flush */
+ *(uint32_t *)jmp_addr |= ((addr - (jmp_addr + 8)) >> 2) & 0xffffff;
+
+#if QEMU_GNUC_PREREQ(4, 1)
+ __clear_cache((char *) jmp_addr, (char *) jmp_addr + 4);
+#else
+ /* flush icache */
+ _beg = jmp_addr;
+ _end = jmp_addr + 4;
+ _flg = 0;
+ __asm __volatile__ ("swi 0x9f0002" : : "r" (_beg), "r" (_end), "r" (_flg));
+#endif
}
#endif
-static inline void tb_set_jmp_target(TranslationBlock *tb,
+static inline void tb_set_jmp_target(TranslationBlock *tb,
int n, unsigned long addr)
{
unsigned long offset;
#else
/* set the jump target */
-static inline void tb_set_jmp_target(TranslationBlock *tb,
+static inline void tb_set_jmp_target(TranslationBlock *tb,
int n, unsigned long addr)
{
tb->tb_next[n] = addr;
#endif
-static inline void tb_add_jump(TranslationBlock *tb, int n,
+static inline void tb_add_jump(TranslationBlock *tb, int n,
TranslationBlock *tb_next)
{
/* NOTE: this test is only needed for thread safety */
if (!tb->jmp_next[n]) {
/* patch the native jump address */
tb_set_jmp_target(tb, n, (unsigned long)tb_next->tc_ptr);
-
+
/* add in TB jmp circular list */
tb->jmp_next[n] = tb_next->jmp_first;
tb_next->jmp_first = (TranslationBlock *)((long)(tb) | (n));
TranslationBlock *tb_find_pc(unsigned long pc_ptr);
-#ifndef offsetof
-#define offsetof(type, field) ((size_t) &((type *)0)->field)
-#endif
-
-#if defined(_WIN32)
-#define ASM_DATA_SECTION ".section \".data\"\n"
-#define ASM_PREVIOUS_SECTION ".section .text\n"
-#elif defined(__APPLE__)
-#define ASM_DATA_SECTION ".data\n"
-#define ASM_PREVIOUS_SECTION ".text\n"
-#else
-#define ASM_DATA_SECTION ".section \".data\"\n"
-#define ASM_PREVIOUS_SECTION ".previous\n"
-#endif
-
-#define ASM_OP_LABEL_NAME(n, opname) \
- ASM_NAME(__op_label) #n "." ASM_NAME(opname)
-
-#if defined(__powerpc__)
-
-/* we patch the jump instruction directly */
-#define GOTO_TB(opname, tbparam, n)\
-do {\
- asm volatile (ASM_DATA_SECTION\
- ASM_OP_LABEL_NAME(n, opname) ":\n"\
- ".long 1f\n"\
- ASM_PREVIOUS_SECTION \
- "b " ASM_NAME(__op_jmp) #n "\n"\
- "1:\n");\
-} while (0)
-
-#elif defined(__i386__) && defined(USE_DIRECT_JUMP)
-
-/* we patch the jump instruction directly */
-#define GOTO_TB(opname, tbparam, n)\
-do {\
- asm volatile (".section .data\n"\
- ASM_OP_LABEL_NAME(n, opname) ":\n"\
- ".long 1f\n"\
- ASM_PREVIOUS_SECTION \
- "jmp " ASM_NAME(__op_jmp) #n "\n"\
- "1:\n");\
-} while (0)
-
-#else
-
-/* jump to next block operations (more portable code, does not need
- cache flushing, but slower because of indirect jump) */
-#define GOTO_TB(opname, tbparam, n)\
-do {\
- static void __attribute__((unused)) *dummy ## n = &&dummy_label ## n;\
- static void __attribute__((unused)) *__op_label ## n \
- __asm__(ASM_OP_LABEL_NAME(n, opname)) = &&label ## n;\
- goto *(void *)(((TranslationBlock *)tbparam)->tb_next[n]);\
-label ## n: ;\
-dummy_label ## n: ;\
-} while (0)
-
-#endif
-
-/* XXX: will be suppressed */
-#define JUMP_TB(opname, tbparam, n, eip)\
-do {\
- GOTO_TB(opname, tbparam, n);\
- T0 = (long)(tbparam) + (n);\
- EIP = (int32_t)eip;\
- EXIT_TB();\
-} while (0)
-
extern CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4];
extern CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4];
extern void *io_mem_opaque[IO_MEM_NB_ENTRIES];
-#ifdef __powerpc__
-static inline int testandset (int *p)
-{
- int ret;
- __asm__ __volatile__ (
- "0: lwarx %0,0,%1\n"
- " xor. %0,%3,%0\n"
- " bne 1f\n"
- " stwcx. %2,0,%1\n"
- " bne- 0b\n"
- "1: "
- : "=&r" (ret)
- : "r" (p), "r" (1), "r" (0)
- : "cr0", "memory");
- return ret;
-}
-#endif
-
-#ifdef __i386__
-static inline int testandset (int *p)
-{
- long int readval = 0;
-
- __asm__ __volatile__ ("lock; cmpxchgl %2, %0"
- : "+m" (*p), "+a" (readval)
- : "r" (1)
- : "cc");
- return readval;
-}
-#endif
-
-#ifdef __x86_64__
-static inline int testandset (int *p)
-{
- long int readval = 0;
-
- __asm__ __volatile__ ("lock; cmpxchgl %2, %0"
- : "+m" (*p), "+a" (readval)
- : "r" (1)
- : "cc");
- return readval;
-}
-#endif
-
-#ifdef __s390__
-static inline int testandset (int *p)
-{
- int ret;
-
- __asm__ __volatile__ ("0: cs %0,%1,0(%2)\n"
- " jl 0b"
- : "=&d" (ret)
- : "r" (1), "a" (p), "0" (*p)
- : "cc", "memory" );
- return ret;
-}
-#endif
-
-#ifdef __alpha__
-static inline int testandset (int *p)
-{
- int ret;
- unsigned long one;
-
- __asm__ __volatile__ ("0: mov 1,%2\n"
- " ldl_l %0,%1\n"
- " stl_c %2,%1\n"
- " beq %2,1f\n"
- ".subsection 2\n"
- "1: br 0b\n"
- ".previous"
- : "=r" (ret), "=m" (*p), "=r" (one)
- : "m" (*p));
- return ret;
-}
-#endif
-
-#ifdef __sparc__
-static inline int testandset (int *p)
-{
- int ret;
-
- __asm__ __volatile__("ldstub [%1], %0"
- : "=r" (ret)
- : "r" (p)
- : "memory");
-
- return (ret ? 1 : 0);
-}
-#endif
-
-#ifdef __arm__
-static inline int testandset (int *spinlock)
-{
- register unsigned int ret;
- __asm__ __volatile__("swp %0, %1, [%2]"
- : "=r"(ret)
- : "0"(1), "r"(spinlock));
-
- return ret;
-}
-#endif
-
-#ifdef __mc68000
-static inline int testandset (int *p)
-{
- char ret;
- __asm__ __volatile__("tas %1; sne %0"
- : "=r" (ret)
- : "m" (p)
- : "cc","memory");
- return ret;
-}
-#endif
-
-#ifdef __ia64
-#include <ia64intrin.h>
-
-static inline int testandset (int *p)
-{
- return __sync_lock_test_and_set (p, 1);
-}
-#endif
-
-typedef int spinlock_t;
-
-#define SPIN_LOCK_UNLOCKED 0
-
-#if defined(CONFIG_USER_ONLY)
-static inline void spin_lock(spinlock_t *lock)
-{
- while (testandset(lock));
-}
-
-static inline void spin_unlock(spinlock_t *lock)
-{
- *lock = 0;
-}
-
-static inline int spin_trylock(spinlock_t *lock)
-{
- return !testandset(lock);
-}
-#else
-static inline void spin_lock(spinlock_t *lock)
-{
-}
-
-static inline void spin_unlock(spinlock_t *lock)
-{
-}
-
-static inline int spin_trylock(spinlock_t *lock)
-{
- return 1;
-}
-#endif
+#include "qemu-lock.h"
extern spinlock_t tb_lock;
#if !defined(CONFIG_USER_ONLY)
-void tlb_fill(target_ulong addr, int is_write, int is_user,
+void tlb_fill(target_ulong addr, int is_write, int mmu_idx,
void *retaddr);
-#define ACCESS_TYPE 3
+#include "softmmu_defs.h"
+
+#define ACCESS_TYPE (NB_MMU_MODES + 1)
#define MEMSUFFIX _code
#define env cpu_single_env
#endif
#if defined(CONFIG_USER_ONLY)
-static inline target_ulong get_phys_addr_code(CPUState *env, target_ulong addr)
+static inline target_ulong get_phys_addr_code(CPUState *env1, target_ulong addr)
{
return addr;
}
/* NOTE: this function can trigger an exception */
/* NOTE2: the returned address is not exactly the physical address: it
is the offset relative to phys_ram_base */
-static inline target_ulong get_phys_addr_code(CPUState *env, target_ulong addr)
+static inline target_ulong get_phys_addr_code(CPUState *env1, target_ulong addr)
{
- int is_user, index, pd;
-
- index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
-#if defined(TARGET_I386)
- is_user = ((env->hflags & HF_CPL_MASK) == 3);
-#elif defined (TARGET_PPC)
- is_user = msr_pr;
-#elif defined (TARGET_MIPS)
- is_user = ((env->hflags & MIPS_HFLAG_MODE) == MIPS_HFLAG_UM);
-#elif defined (TARGET_SPARC)
- is_user = (env->psrs == 0);
-#else
-#error "Unimplemented !"
-#endif
- if (__builtin_expect(env->tlb_read[is_user][index].address !=
- (addr & TARGET_PAGE_MASK), 0)) {
+ int mmu_idx, page_index, pd;
+ void *p;
+
+ page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
+ mmu_idx = cpu_mmu_index(env1);
+ if (unlikely(env1->tlb_table[mmu_idx][page_index].addr_code !=
+ (addr & TARGET_PAGE_MASK))) {
ldub_code(addr);
}
- pd = env->tlb_read[is_user][index].address & ~TARGET_PAGE_MASK;
- if (pd > IO_MEM_ROM) {
- cpu_abort(env, "Trying to execute code outside RAM or ROM at 0x%08lx\n", addr);
+ pd = env1->tlb_table[mmu_idx][page_index].addr_code & ~TARGET_PAGE_MASK;
+ if (pd > IO_MEM_ROM && !(pd & IO_MEM_ROMD)) {
+#if defined(TARGET_SPARC) || defined(TARGET_MIPS)
+ do_unassigned_access(addr, 0, 1, 0, 4);
+#else
+ cpu_abort(env1, "Trying to execute code outside RAM or ROM at 0x" TARGET_FMT_lx "\n", addr);
+#endif
}
- return addr + env->tlb_read[is_user][index].addend - (unsigned long)phys_ram_base;
+ p = (void *)(unsigned long)addr
+ + env1->tlb_table[mmu_idx][page_index].addend;
+ return qemu_ram_addr_from_host(p);
+}
+
+/* Deterministic execution requires that IO only be performed on the last
+ instruction of a TB so that interrupts take effect immediately. */
+static inline int can_do_io(CPUState *env)
+{
+ if (!use_icount)
+ return 1;
+
+ /* If not executing code then assume we are ok. */
+ if (!env->current_tb)
+ return 1;
+
+ return env->can_do_io != 0;
}
#endif
+#ifdef CONFIG_KQEMU
+#define KQEMU_MODIFY_PAGE_MASK (0xff & ~(VGA_DIRTY_FLAG | CODE_DIRTY_FLAG))
+
+#define MSR_QPI_COMMBASE 0xfabe0010
-#ifdef USE_KQEMU
int kqemu_init(CPUState *env);
int kqemu_cpu_exec(CPUState *env);
void kqemu_flush_page(CPUState *env, target_ulong addr);
void kqemu_flush(CPUState *env, int global);
void kqemu_set_notdirty(CPUState *env, ram_addr_t ram_addr);
+void kqemu_modify_page(CPUState *env, ram_addr_t ram_addr);
+void kqemu_set_phys_mem(uint64_t start_addr, ram_addr_t size,
+ ram_addr_t phys_offset);
void kqemu_cpu_interrupt(CPUState *env);
+void kqemu_record_dump(void);
+
+extern uint32_t kqemu_comm_base;
+
+extern ram_addr_t kqemu_phys_ram_size;
+extern uint8_t *kqemu_phys_ram_base;
static inline int kqemu_is_ok(CPUState *env)
{
return(env->kqemu_enabled &&
- (env->hflags & HF_CPL_MASK) == 3 &&
- (env->eflags & IOPL_MASK) != IOPL_MASK &&
- (env->cr[0] & CR0_PE_MASK) &&
+ (env->cr[0] & CR0_PE_MASK) &&
+ !(env->hflags & HF_INHIBIT_IRQ_MASK) &&
(env->eflags & IF_MASK) &&
- !(env->eflags & VM_MASK));
+ !(env->eflags & VM_MASK) &&
+ (env->kqemu_enabled == 2 ||
+ ((env->hflags & HF_CPL_MASK) == 3 &&
+ (env->eflags & IOPL_MASK) != IOPL_MASK)));
}
#endif
+
+typedef void (CPUDebugExcpHandler)(CPUState *env);
+
+CPUDebugExcpHandler *cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler);
+
+/* vl.c */
+extern int singlestep;
+
+#endif
projects / qemu / blobdiff