diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2021-05-21 11:51:44 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-06-17 19:09:40 +0200 |
| commit | a1ec661c3fdc8177a8789a9528d5bcfe0d9fc8a8 (patch) | |
| tree | fe6ff8b338733de19becb628a3422f67b833cb0d /arch/x86/kvm | |
| parent | KVM: x86: hyper-v: Honor HV_MSR_RESET_AVAILABLE privilege bit (diff) | |
| download | linux-a1ec661c3fdc8177a8789a9528d5bcfe0d9fc8a8.tar.xz linux-a1ec661c3fdc8177a8789a9528d5bcfe0d9fc8a8.zip | |
KVM: x86: hyper-v: Honor HV_MSR_REFERENCE_TSC_AVAILABLE privilege bit
HV_X64_MSR_REFERENCE_TSC is only available to guest when
HV_MSR_REFERENCE_TSC_AVAILABLE bit is exposed.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210521095204.2161214-11-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/hyperv.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index 1348f7691310..7ca7ea0b6e74 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -1225,6 +1225,9 @@ static bool hv_check_msr_access(struct kvm_vcpu_hv *hv_vcpu, u32 msr) case HV_X64_MSR_RESET: return hv_vcpu->cpuid_cache.features_eax & HV_MSR_RESET_AVAILABLE; + case HV_X64_MSR_REFERENCE_TSC: + return hv_vcpu->cpuid_cache.features_eax & + HV_MSR_REFERENCE_TSC_AVAILABLE; default: break; } |