diff mbox series

[5.4,17/61] KVM: x86/pmu: Fix HW_REF_CPU_CYCLES event pseudo-encoding in intel_arch_events[]

Message ID 20210202132947.192207999@linuxfoundation.org
State Superseded
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman Feb. 2, 2021, 1:37 p.m. UTC 
From: Like Xu <like.xu@linux.intel.com>

commit 98dd2f108e448988d91e296173e773b06fb978b8 upstream.

The HW_REF_CPU_CYCLES event on the fixed counter 2 is pseudo-encoded as
0x0300 in the intel_perfmon_event_map[]. Correct its usage.

Fixes: 62079d8a4312 ("KVM: PMU: add proper support for fixed counter 2")
Signed-off-by: Like Xu <like.xu@linux.intel.com>
Message-Id: <20201230081916.63417-1-like.xu@linux.intel.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/x86/kvm/vmx/pmu_intel.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

--- a/arch/x86/kvm/vmx/pmu_intel.c
+++ b/arch/x86/kvm/vmx/pmu_intel.c
@@ -26,7 +26,7 @@  static struct kvm_event_hw_type_mapping
 	[4] = { 0x2e, 0x41, PERF_COUNT_HW_CACHE_MISSES },
 	[5] = { 0xc4, 0x00, PERF_COUNT_HW_BRANCH_INSTRUCTIONS },
 	[6] = { 0xc5, 0x00, PERF_COUNT_HW_BRANCH_MISSES },
-	[7] = { 0x00, 0x30, PERF_COUNT_HW_REF_CPU_CYCLES },
+	[7] = { 0x00, 0x03, PERF_COUNT_HW_REF_CPU_CYCLES },
 };
 
 /* mapping between fixed pmc index and intel_arch_events array */