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Commit 0ee4bb8c authored by Jim Mattson's avatar Jim Mattson Committed by Greg Kroah-Hartman
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KVM: x86/pmu: Don't truncate the PerfEvtSeln MSR when creating a perf event



[ Upstream commit b8bfee85 ]

AMD's event select is 3 nybbles, with the high nybble in bits 35:32 of
a PerfEvtSeln MSR. Don't drop the high nybble when setting up the
config field of a perf_event_attr structure for a call to
perf_event_create_kernel_counter().

Fixes: ca724305 ("KVM: x86/vPMU: Implement AMD vPMU code for KVM")
Reported-by: default avatarStephane Eranian <eranian@google.com>
Signed-off-by: default avatarJim Mattson <jmattson@google.com>
Message-Id: <20220203014813.2130559-1-jmattson@google.com>
Reviewed-by: default avatarDavid Dunn <daviddunn@google.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 99cd2a04
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