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Handle CPU fault when invalidating TB cache

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lazymio 2022-01-08 22:10:17 +01:00
parent c671efe798
commit be7fbf1306
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1 changed files with 13 additions and 2 deletions
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15
qemu/accel/tcg/translate-all.c
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@ -985,11 +985,22 @@ static void uc_invalidate_tb(struct uc_struct *uc, uint64_t start_addr, size_t l
{ {
tb_page_addr_t start, end; tb_page_addr_t start, end;
// GVA to GPA uc->nested_level++;
if (sigsetjmp(uc->jmp_bufs[uc->nested_level - 1], 0) != 0) {
// We a get cpu fault in get_page_addr_code, ignore it.
uc->nested_level--;
return;
}
// GPA to GVA
// start_addr : GPA
// addr: GVA
// (GPA -> HVA via memory_region_get_ram_addr(mr) + GPA + block->host, // (GPA -> HVA via memory_region_get_ram_addr(mr) + GPA + block->host,
// HVA->HPA via host mmu) // HVA->HPA via host mmu)
start = get_page_addr_code(uc->cpu->env_ptr, start_addr) & (target_ulong)(-1); start = get_page_addr_code(uc->cpu->env_ptr, start_addr) & (target_ulong)(-1);
uc->nested_level--;
// For 32bit target. // For 32bit target.
end = (start + len) & (target_ulong)(-1); end = (start + len) & (target_ulong)(-1);