[PATCH 5/9] KVM: VMX: Remove restriction that PMU version > 0 for PERF_CAPABILITIES

From: Sean Christopherson
Date: Fri Aug 02 2024 - 14:56:57 EST


Drop the restriction that the PMU version is non-zero when handling writes
to PERF_CAPABILITIES now that KVM unconditionally checks for PDCM support.

Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
arch/x86/kvm/vmx/vmx.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index c1d06f800b8e..f636d811bdc1 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -2460,8 +2460,6 @@ int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
vmx->pt_desc.guest.addr_a[index / 2] = data;
break;
case MSR_IA32_PERF_CAPABILITIES:
- if (data && !vcpu_to_pmu(vcpu)->version)
- return 1;
if (data & PMU_CAP_LBR_FMT) {
if ((data & PMU_CAP_LBR_FMT) !=
(kvm_caps.supported_perf_cap & PMU_CAP_LBR_FMT))
--
2.46.0.rc2.264.g509ed76dc8-goog