KVM: x86/pmu: Use AMD64_RAW_EVENT_MASK for PERF_TYPE_RAW

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: ca724305a2b0 ("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>

diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index cd923ba..b1a0299 100644 (file)
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -221,7 +221,7 @@ void reprogram_gp_counter(struct kvm_pmc *pmc, u64 eventsel)
        }
 
        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))
                return;