diff options
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/svm/svm.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index cd8c333ed2dc..9ed9c7bd7cfd 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -2674,6 +2674,9 @@ static int svm_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) case MSR_TSC_AUX: if (!boot_cpu_has(X86_FEATURE_RDTSCP)) return 1; + if (!msr_info->host_initiated && + !guest_cpuid_has(vcpu, X86_FEATURE_RDTSCP)) + return 1; msr_info->data = svm->tsc_aux; break; /* @@ -2892,6 +2895,10 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr) if (!boot_cpu_has(X86_FEATURE_RDTSCP)) return 1; + if (!msr->host_initiated && + !guest_cpuid_has(vcpu, X86_FEATURE_RDTSCP)) + return 1; + /* * This is rare, so we update the MSR here instead of using * direct_access_msrs. Doing that would require a rdmsr in |