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[5.4,66/80] KVM: x86/pmu: Use AMD64_RAW_EVENT_MASK for PERF_TYPE_RAW

Message ID 20220221084917.745909366@linuxfoundation.org
State Superseded
Headers show
Series None | expand

Commit Message

Greg KH Feb. 21, 2022, 8:49 a.m. UTC 
From: Jim Mattson <jmattson@google.com>

[ Upstream commit 710c476514313c74045c41c0571bb5178fd16e3d ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kvm/pmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index 46875bbd04198..e0e3776059af4 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -191,7 +191,7 @@  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;
 
 	pmc_reprogram_counter(pmc, type, config,
 			      !(eventsel & ARCH_PERFMON_EVENTSEL_USR),