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target/i386: AMD only supports SYSENTER/SYSEXIT in 32-bit mode 

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2023-06-19 15:41:42 +02:00
parent fd5dcb1ccd
commit 75a02adf81
1 changed files with 6 additions and 4 deletions
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10
target/i386/tcg/translate.c
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@ -5669,9 +5669,10 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
s->base.is_jmp = DISAS_NORETURN;
break;
case 0x134: /* sysenter */
/* For Intel SYSENTER is valid on 64-bit */
if (CODE64(s) && env->cpuid_vendor1 != CPUID_VENDOR_INTEL_1)
/* For AMD SYSENTER is not valid in long mode */
if (LMA(s) && env->cpuid_vendor1 != CPUID_VENDOR_INTEL_1) {
goto illegal_op;
}
if (!PE(s)) {
gen_exception_gpf(s);
} else {
@ -5680,9 +5681,10 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
}
break;
case 0x135: /* sysexit */
/* For Intel SYSEXIT is valid on 64-bit */
if (CODE64(s) && env->cpuid_vendor1 != CPUID_VENDOR_INTEL_1)
/* For AMD SYSEXIT is not valid in long mode */
if (LMA(s) && env->cpuid_vendor1 != CPUID_VENDOR_INTEL_1) {
goto illegal_op;
}
if (!PE(s)) {
gen_exception_gpf(s);
} else {