From: Sean Christopherson Date: Fri, 2 Aug 2024 18:55:07 +0000 (-0700) Subject: KVM: VMX: Remove restriction that PMU version > 0 for PERF_CAPABILITIES X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a1039111192b3b8c76c3b1a334b62376df3c2885;p=linux.git KVM: VMX: Remove restriction that PMU version > 0 for PERF_CAPABILITIES Drop the restriction that the PMU version is non-zero when handling writes to PERF_CAPABILITIES now that KVM unconditionally checks for PDCM support. Link: https://lore.kernel.org/r/20240802185511.305849-6-seanjc@google.com Signed-off-by: Sean Christopherson --- diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index f0326927d4e1..11a1d70f5ad7 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -2456,8 +2456,6 @@ 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))