diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2018-12-19 12:06:13 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-12-21 11:28:20 +0100 |
| commit | e87555e550cef4941579cd879759a7c0dee24e68 (patch) | |
| tree | d98400298b3a71187f93fe257d298175e00da2f6 /arch/x86/kvm/svm.c | |
| parent | ed8e48122728acfaf7bfa904cba034d83905b43a (diff) | |
KVM: x86: svm: report MSR_IA32_MCG_EXT_CTL as unsupported
AMD doesn't seem to implement MSR_IA32_MCG_EXT_CTL and svm code in kvm
knows nothing about it, however, this MSR is among emulated_msrs and
thus returned with KVM_GET_MSR_INDEX_LIST. The consequent KVM_GET_MSRS,
of course, fails.
Report the MSR as unsupported to not confuse userspace.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index e4f18a305ef6..c4377f02a33b 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -5840,6 +5840,13 @@ static bool svm_cpu_has_accelerated_tpr(void) static bool svm_has_emulated_msr(int index) { + switch (index) { + case MSR_IA32_MCG_EXT_CTL: + return false; + default: + break; + } + return true; } |