diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2020-03-02 15:57:00 -0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-03-16 17:58:38 +0100 |
| commit | a1bead2abaa162e5e67ad258a06c9d71dddad00d (patch) | |
| tree | 541d4ec238ba9c2302c72b3d1384360404f768ae /arch/x86/kvm/x86.c | |
| parent | 7b874c26a62487acaf2e7e179715991c70db25db (diff) | |
KVM: VMX: Directly query Intel PT mode when refreshing PMUs
Use vmx_pt_mode_is_host_guest() in intel_pmu_refresh() instead of
bouncing through kvm_x86_ops->pt_supported, and remove ->pt_supported()
as the PMU code was the last remaining user.
Opportunistically clean up the wording of a comment that referenced
kvm_x86_ops->pt_supported().
No functional change intended.
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index f3fac68f0612..5be4961d49dd 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2820,10 +2820,9 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) !guest_cpuid_has(vcpu, X86_FEATURE_XSAVES)) return 1; /* - * We do support PT if kvm_x86_ops->pt_supported(), but we do - * not support IA32_XSS[bit 8]. Guests will have to use - * RDMSR/WRMSR rather than XSAVES/XRSTORS to save/restore PT - * MSRs. + * KVM supports exposing PT to the guest, but does not support + * IA32_XSS[bit 8]. Guests have to use RDMSR/WRMSR rather than + * XSAVES/XRSTORS to save/restore PT MSRs. */ if (data != 0) return 1; |