Messages in this thread Patch in this message | | | From | Like Xu <> | Subject | [PATCH 1/2] KVM: vmx/pmu: Fix dummy check if lbr_desc->event is created | Date | Tue, 23 Feb 2021 09:39:57 +0800 |
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If lbr_desc->event is successfully created, the intel_pmu_create_ guest_lbr_event() will return 0, otherwise it will return -ENOENT, and then jump to LBR msrs dummy handling.
Fixes: 1b5ac3226a1a ("KVM: vmx/pmu: Pass-through LBR msrs when the guest LBR event is ACTIVE") Signed-off-by: Like Xu <like.xu@linux.intel.com> --- arch/x86/kvm/vmx/pmu_intel.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/vmx/pmu_intel.c b/arch/x86/kvm/vmx/pmu_intel.c index d1df618cb7de..d6a5fe19ff09 100644 --- a/arch/x86/kvm/vmx/pmu_intel.c +++ b/arch/x86/kvm/vmx/pmu_intel.c @@ -320,7 +320,7 @@ static bool intel_pmu_handle_lbr_msrs_access(struct kvm_vcpu *vcpu, if (!intel_pmu_is_valid_lbr_msr(vcpu, index)) return false; - if (!lbr_desc->event && !intel_pmu_create_guest_lbr_event(vcpu)) + if (!lbr_desc->event && intel_pmu_create_guest_lbr_event(vcpu)) goto dummy; /* -- 2.29.2
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