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KVM: x86: Handle PERF_CAPABILITIES in common x86's kvm_get_msr_feature()

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Handle PERF_CAPABILITIES directly in kvm_get_msr_feature() now that the
supported value is available in kvm_caps.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20221006000314.73240-8-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson
2022-10-06 00:03:13 +00:00
committed by Paolo Bonzini
parent 6c6f82bea9
commit 5fe9805dc2
3 changed files with 3 additions and 6 deletions
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3
arch/x86/kvm/svm/svm.c
View File

@@ -2713,9 +2713,6 @@ static int svm_get_msr_feature(struct kvm_msr_entry *msr)
if (boot_cpu_has(X86_FEATURE_LFENCE_RDTSC))
msr->data |= MSR_F10H_DECFG_LFENCE_SERIALIZE;
break;
case MSR_IA32_PERF_CAPABILITIES:
msr->data = kvm_caps.supported_perf_cap;
return 0;
default:
return KVM_MSR_RET_INVALID;
}

3
arch/x86/kvm/vmx/vmx.c
View File

@@ -1849,9 +1849,6 @@ static int vmx_get_msr_feature(struct kvm_msr_entry *msr)
if (!nested)
return 1;
return vmx_get_vmx_msr(&vmcs_config.nested, msr->index, &msr->data);
case MSR_IA32_PERF_CAPABILITIES:
msr->data = kvm_caps.supported_perf_cap;
return 0;
default:
return KVM_MSR_RET_INVALID;
}

3
arch/x86/kvm/x86.c
View File

@@ -1648,6 +1648,9 @@ static int kvm_get_msr_feature(struct kvm_msr_entry *msr)
case MSR_IA32_ARCH_CAPABILITIES:
msr->data = kvm_get_arch_capabilities();
break;
case MSR_IA32_PERF_CAPABILITIES:
msr->data = kvm_caps.supported_perf_cap;
break;
case MSR_IA32_UCODE_REV:
rdmsrl_safe(msr->index, &msr->data);
break;