diff options
| author | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2004-04-25 17:57:43 +0000 |
|---|---|---|
| committer | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2004-04-25 17:57:43 +0000 |
| commit | d720b93d0bcfe1beb729245b9ed1e5f071a24bd5 (patch) | |
| tree | 4f9d65b82b9eb8bd65681cfde6bb18e7b6bd2eae /target-i386/cpu.h | |
| parent | eeab3a558f89e30ee93ef628bcbd6a3f64b9b8a6 (diff) | |
precise self modifying code support
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@745 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-i386/cpu.h')
| -rw-r--r-- | target-i386/cpu.h | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/target-i386/cpu.h b/target-i386/cpu.h index daa2133f8e..6b2a89bb9a 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -22,6 +22,12 @@ #define TARGET_LONG_BITS 32 +/* target supports implicit self modifying code */ +#define TARGET_HAS_SMC +/* support for self modifying code even if the modified instruction is + close to the modifying instruction */ +#define TARGET_HAS_PRECISE_SMC + #include "cpu-defs.h" #if defined(__i386__) && !defined(CONFIG_SOFTMMU) @@ -331,8 +337,16 @@ typedef struct CPUX86State { int interrupt_request; int user_mode_only; /* user mode only simulation */ - /* soft mmu support */ uint32_t a20_mask; + + /* soft mmu support */ + /* in order to avoid passing too many arguments to the memory + write helpers, we store some rarely used information in the CPU + context) */ + unsigned long mem_write_pc; /* host pc at which the memory was + written */ + unsigned long mem_write_vaddr; /* target virtual addr at which the + memory was written */ /* 0 = kernel, 1 = user */ CPUTLBEntry tlb_read[2][CPU_TLB_SIZE]; CPUTLBEntry tlb_write[2][CPU_TLB_SIZE]; @@ -358,7 +372,7 @@ int cpu_x86_inl(CPUX86State *env, int addr); CPUX86State *cpu_x86_init(void); int cpu_x86_exec(CPUX86State *s); void cpu_x86_close(CPUX86State *s); -int cpu_x86_get_pic_interrupt(CPUX86State *s); +int cpu_get_pic_interrupt(CPUX86State *s); /* this function must always be used to load data in the segment cache: it synchronizes the hflags with the segment cache values */ |