linux-kernel - [PATCH] kvm/pmu: fix mapping of unhalted_reference

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Date:	Thu, 20 Feb 2014 18:45:31 +0100
From:	Stephane Eranian <eranian@...gle.com>
To:	linux-kernel@...r.kernel.org
Cc:	peterz@...radead.org, mingo@...e.hu, gleb@...hat.com
Subject: [PATCH] kvm/pmu: fix mapping of unhalted_reference_cycles event


The pseudo encoding for unhalted_reference_cycles
is 0x0300. The KVM table was mapping it to 0x3000
This patch fixes this.

Signed-off-by: Stephane Eranian <eranian@...gle.com>

diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index 5c4f631..db79c00 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -33,7 +33,7 @@ static struct kvm_arch_event_perf_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 arch_events array */
--
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