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KVM: x86/pmu: Use AMD64_RAW_EVENT_MASK for PERF_TYPE_RAW

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AMD's event select is 3 nybbles, with the high nybble in bits 35:32 of
a PerfEvtSeln MSR. Don't mask off the high nybble when configuring a
RAW perf event.

Fixes: ca724305a2 ("KVM: x86/vPMU: Implement AMD vPMU code for KVM")
Signed-off-by: Jim Mattson <jmattson@google.com>
Message-Id: <20220203014813.2130559-2-jmattson@google.com>
Reviewed-by: David Dunn <daviddunn@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Jim Mattson 2022-02-02 17:48:13 -08:00 committed by Paolo Bonzini
parent b8bfee85f1
commit 710c476514
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/pmu.c
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@ -221,7 +221,7 @@ void reprogram_gp_counter(struct kvm_pmc *pmc, u64 eventsel)
} }
if (type == PERF_TYPE_RAW) if (type == PERF_TYPE_RAW)
config = eventsel & X86_RAW_EVENT_MASK; config = eventsel & AMD64_RAW_EVENT_MASK;
if (pmc->current_config == eventsel && pmc_resume_counter(pmc)) if (pmc->current_config == eventsel && pmc_resume_counter(pmc))
return; return;