diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2021-05-21 11:51:49 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-06-17 13:09:41 -0400 |
| commit | 234d01baec5b216b60b560672957470f773ecf78 (patch) | |
| tree | 1463d9b558c51c089b5b2716f43ff77c260078b3 | |
| parent | 9442f3bd9012f37ba2b4ec3ab2d7c248b137391c (diff) | |
KVM: x86: hyper-v: Honor HV_ACCESS_REENLIGHTENMENT privilege bit
HV_X64_MSR_REENLIGHTENMENT_CONTROL/HV_X64_MSR_TSC_EMULATION_CONTROL/
HV_X64_MSR_TSC_EMULATION_STATUS are only available to guest when
HV_ACCESS_REENLIGHTENMENT bit is exposed.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210521095204.2161214-16-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | arch/x86/kvm/hyperv.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index 2a0660b4e779..230f52606e39 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -1257,6 +1257,11 @@ static bool hv_check_msr_access(struct kvm_vcpu_hv *hv_vcpu, u32 msr) case HV_X64_MSR_APIC_FREQUENCY: return hv_vcpu->cpuid_cache.features_eax & HV_ACCESS_FREQUENCY_MSRS; + case HV_X64_MSR_REENLIGHTENMENT_CONTROL: + case HV_X64_MSR_TSC_EMULATION_CONTROL: + case HV_X64_MSR_TSC_EMULATION_STATUS: + return hv_vcpu->cpuid_cache.features_eax & + HV_ACCESS_REENLIGHTENMENT; default: break; } |