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| author |   Sean Christopherson <seanjc@google.com> | 2024-08-02 11:55:07 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2024-11-01 09:22:33 -0700 |
| commit | a1039111192b3b8c76c3b1a334b62376df3c2885 (patch) | |
| tree | d4c4d012c2ff07ceb1ceac27f81dd49face73c24 | |
| parent | KVM: x86: Reject userspace attempts to access PERF_CAPABILITIES w/o PDCM (diff) | |
| download | wireguard-linux-a1039111192b3b8c76c3b1a334b62376df3c2885.tar.xz wireguard-linux-a1039111192b3b8c76c3b1a334b62376df3c2885.zip | |
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 <seanjc@google.com>
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 2 |
1 files changed, 0 insertions, 2 deletions
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)) |