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lazymio 2021-11-01 09:41:25 +01:00
parent 3dd2e0f95d
commit 0a3e46bf4f
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GPG Key ID: DFF27E34A47CB873
3 changed files with 16 additions and 36 deletions
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30
qemu/accel/tcg/translate-all.c
View File

@ -980,32 +980,9 @@ static void tb_htable_init(struct uc_struct *uc)
qht_init(&uc->tcg_ctx->tb_ctx.htable, tb_cmp, CODE_GEN_HTABLE_SIZE, mode); qht_init(&uc->tcg_ctx->tb_ctx.htable, tb_cmp, CODE_GEN_HTABLE_SIZE, mode);
} }
// GVA to GPA (GPA -> HVA via page_find, HVA->HPA via host mmu)
// Unicorn: Why addr - 1?
// 0: INC ecx
// 1: DEC edx <--- We put exit here, then the range of TB is [0, 1)
//
// While tb_invalidate_phys_range invalides [start, end)
//
// This function is designed to used with g_tree_foreach
static inline gboolean uc_exit_invalidate_iter(gpointer key, gpointer val, gpointer data) {
uint64_t exit = *((uint64_t*)key);
uc_engine* uc = (uc_engine*)data;
tb_page_addr_t start, end;
if (exit != 0) { static void uc_invalidate_tb(struct uc_struct *uc, uint64_t start_addr, size_t len)
end = get_page_addr_code(uc->cpu->env_ptr, exit); {
start = (end-1) ;
end = end & (target_ulong)(-1);
tb_invalidate_phys_range(uc, start, end);
}
return false;
}
static void uc_invalidate_tb(struct uc_struct *uc, uint64_t start_addr, size_t len) {
tb_page_addr_t start, end; tb_page_addr_t start, end;
// GVA to GPA (GPA -> HVA via page_find, HVA->HPA via host mmu) // GVA to GPA (GPA -> HVA via page_find, HVA->HPA via host mmu)
@ -1022,7 +999,8 @@ static void uc_invalidate_tb(struct uc_struct *uc, uint64_t start_addr, size_t l
tb_invalidate_phys_range(uc, start, end); tb_invalidate_phys_range(uc, start, end);
} }
static TranslationBlock* uc_gen_tb(struct uc_struct *uc, uint64_t addr) { static TranslationBlock* uc_gen_tb(struct uc_struct *uc, uint64_t addr)
{
TranslationBlock *tb; TranslationBlock *tb;
target_ulong cs_base, pc; target_ulong cs_base, pc;
CPUState *cpu = uc->cpu; CPUState *cpu = uc->cpu;

13
qemu/softmmu/cpus.c
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@ -172,18 +172,21 @@ void cpu_stop_current(struct uc_struct *uc)
} }
static inline gboolean uc_exit_invalidate_iter(gpointer key, gpointer val, gpointer data)
{
uint64_t exit = *((uint64_t*)key);
uc_engine *uc = (uc_engine*)data;
if (exit != 0) {
// Unicorn: Why addr - 1? // Unicorn: Why addr - 1?
//
// 0: INC ecx // 0: INC ecx
// 1: DEC edx <--- We put exit here, then the range of TB is [0, 1) // 1: DEC edx <--- We put exit here, then the range of TB is [0, 1)
// //
// While tb_invalidate_phys_range invalides [start, end) // While tb_invalidate_phys_range invalides [start, end)
// //
// This function is designed to used with g_tree_foreach // This function is designed to used with g_tree_foreach
static inline gboolean uc_exit_invalidate_iter(gpointer key, gpointer val, gpointer data) {
uint64_t exit = *((uint64_t*)key);
uc_engine* uc = (uc_engine*)data;
if (exit != 0) {
uc->uc_invalidate_tb(uc, exit - 1, 1); uc->uc_invalidate_tb(uc, exit - 1, 1);
} }

1
samples/sample_ctl.c
View File

@ -6,7 +6,6 @@
#include <unicorn/unicorn.h> #include <unicorn/unicorn.h>
#include <string.h> #include <string.h>
// code to be emulated
// code to be emulated // code to be emulated
#define X86_CODE32 "\x41\x4a" // INC ecx; DEC edx; PXOR xmm0, xmm1 #define X86_CODE32 "\x41\x4a" // INC ecx; DEC edx; PXOR xmm0, xmm1