diff options
| -rw-r--r-- | target-i386/cpu.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/target-i386/cpu.c b/target-i386/cpu.c index 3a68470f53..333745b456 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -1022,27 +1022,28 @@ static int unavailable_host_feature(FeatureWordInfo *f, uint32_t mask) * * This function may be called only if KVM is enabled. */ -static int kvm_check_features_against_host(x86_def_t *guest_def) +static int kvm_check_features_against_host(X86CPU *cpu) { + CPUX86State *env = &cpu->env; x86_def_t host_def; uint32_t mask; int rv, i; struct model_features_t ft[] = { - {&guest_def->features, &host_def.features, + {&env->cpuid_features, &host_def.features, FEAT_1_EDX }, - {&guest_def->ext_features, &host_def.ext_features, + {&env->cpuid_ext_features, &host_def.ext_features, FEAT_1_ECX }, - {&guest_def->ext2_features, &host_def.ext2_features, + {&env->cpuid_ext2_features, &host_def.ext2_features, FEAT_8000_0001_EDX }, - {&guest_def->ext3_features, &host_def.ext3_features, + {&env->cpuid_ext3_features, &host_def.ext3_features, FEAT_8000_0001_ECX }, - {&guest_def->ext4_features, &host_def.ext4_features, + {&env->cpuid_ext4_features, &host_def.ext4_features, FEAT_C000_0001_EDX }, - {&guest_def->cpuid_7_0_ebx_features, &host_def.cpuid_7_0_ebx_features, + {&env->cpuid_7_0_ebx_features, &host_def.cpuid_7_0_ebx_features, FEAT_7_0_EBX }, - {&guest_def->svm_features, &host_def.svm_features, + {&env->cpuid_svm_features, &host_def.svm_features, FEAT_SVM }, - {&guest_def->kvm_features, &host_def.kvm_features, + {&env->cpuid_kvm_features, &host_def.kvm_features, FEAT_KVM }, }; @@ -1471,10 +1472,6 @@ static int cpu_x86_parse_featurestr(x86_def_t *x86_cpu_def, char *features) x86_cpu_def->kvm_features &= ~minus_features[FEAT_KVM]; x86_cpu_def->svm_features &= ~minus_features[FEAT_SVM]; x86_cpu_def->cpuid_7_0_ebx_features &= ~minus_features[FEAT_7_0_EBX]; - if (check_cpuid && kvm_enabled()) { - if (kvm_check_features_against_host(x86_cpu_def) && enforce_cpuid) - goto error; - } return 0; error: @@ -2177,6 +2174,11 @@ void x86_cpu_realize(Object *obj, Error **errp) #ifdef CONFIG_KVM filter_features_for_kvm(cpu); #endif + if (check_cpuid && kvm_check_features_against_host(cpu) + && enforce_cpuid) { + error_setg(errp, "Host's CPU doesn't support requested features"); + return; + } } #ifndef CONFIG_USER_ONLY |