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authorGleb Natapov <gleb@redhat.com>2012-02-26 16:55:42 +0200
committerAvi Kivity <avi@redhat.com>2012-03-08 14:13:34 +0200
commit62079d8a431287a4da81db64e002c71f0e06ca83 (patch)
tree774d3dc7cebfc938863b47d0048ad3c79c953d21
parentfac3368310765ade6bbdf07c9acdb04210e8b5b0 (diff)
KVM: PMU: add proper support for fixed counter 2
Currently pmu emulation emulates fixed counter 2 as bus cycles architectural counter, but since commit 9c1497ea591b25d perf has pseudo encoding for it. Use it. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
-rw-r--r--arch/x86/kvm/pmu.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index b52a8ed283b..a73f0c10481 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -33,10 +33,11 @@ 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 },
};
/* mapping between fixed pmc index and arch_events array */
-int fixed_pmc_events[] = {1, 0, 2};
+int fixed_pmc_events[] = {1, 0, 7};
static bool pmc_is_gp(struct kvm_pmc *pmc)
{