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Enable XSAVE related CPUID

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We can support it in KVM now. The 0xd leaf is queried from KVM.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Sheng Yang 2010-06-17 15:18:14 +08:00 committed by Marcelo Tosatti
parent c958a8bd9b
commit 51e49430c0
1 changed files with 21 additions and 0 deletions
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21
target-i386/cpuid.c
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@ -1087,6 +1087,27 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
*ecx = 0;
*edx = 0;
break;
case 0xD:
/* Processor Extended State */
if (!(env->cpuid_ext_features & CPUID_EXT_XSAVE)) {
*eax = 0;
*ebx = 0;
*ecx = 0;
*edx = 0;
break;
}
if (kvm_enabled()) {
*eax = kvm_arch_get_supported_cpuid(env, 0xd, count, R_EAX);
*ebx = kvm_arch_get_supported_cpuid(env, 0xd, count, R_EBX);
*ecx = kvm_arch_get_supported_cpuid(env, 0xd, count, R_ECX);
*edx = kvm_arch_get_supported_cpuid(env, 0xd, count, R_EDX);
} else {
*eax = 0;
*ebx = 0;
*ecx = 0;
*edx = 0;
}
break;
case 0x80000000:
*eax = env->cpuid_xlevel;
*ebx = env->cpuid_vendor1;