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make i386 instructions RDTSC and RDTSCP hookable (#2066)

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* instruction hooks for RDTSC and RDTSCP

Signed-off-by: Pedro Tôrres <t0rr3sp3dr0@gmail.com>

* update hookable instruction list

Signed-off-by: Pedro Tôrres <t0rr3sp3dr0@gmail.com>

* test RDTSC and RDTSCP instruction hooks

Signed-off-by: Pedro Tôrres <t0rr3sp3dr0@gmail.com>

---------

Signed-off-by: Pedro Tôrres <t0rr3sp3dr0@gmail.com>
Co-authored-by: mio <mio@lazym.io>
This commit is contained in:
Pedro Tôrres
2024-12-20 01:17:23 -08:00
committed by GitHub
parent 1cbb7b40b2
commit 7737e7b436
6 changed files with 167 additions and 7 deletions
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5
qemu/target/i386/unicorn.c
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@@ -2000,10 +2000,11 @@ static bool x86_stop_interrupt(struct uc_struct *uc, int intno)
static bool x86_insn_hook_validate(uint32_t insn_enum)
{
// for x86 we can only hook IN, OUT, and SYSCALL
// for x86 we can only hook IN, OUT, SYSCALL, SYSENTER, CPUID, RDTSC, and RDTSCP
if (insn_enum != UC_X86_INS_IN && insn_enum != UC_X86_INS_OUT &&
insn_enum != UC_X86_INS_SYSCALL && insn_enum != UC_X86_INS_SYSENTER &&
insn_enum != UC_X86_INS_CPUID) {
insn_enum != UC_X86_INS_CPUID && insn_enum != UC_X86_INS_RDTSC &&
insn_enum != UC_X86_INS_RDTSCP) {
return false;
}
return true;