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author | Marc Zyngier <maz@kernel.org> | 2019-10-08 15:09:55 +0100 |
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committer | Marc Zyngier <maz@kernel.org> | 2019-10-20 10:47:07 +0100 |
commit | 725ce66979fb6da5c1aec5b064d0871bedc23bf7 (patch) | |
tree | 160b07ae49fd048279fc3a8684fafc17de14bbd4 /scripts | |
parent | 6f16371453476fd094760ea3d6f00144e9ae3057 (diff) |
KVM: arm64: pmu: Set the CHAINED attribute before creating the in-kernel event
The current convention for KVM to request a chained event from the
host PMU is to set bit[0] in attr.config1 (PERF_ATTR_CFG1_KVM_PMU_CHAINED).
But as it turns out, this bit gets set *after* we create the kernel
event that backs our virtual counter, meaning that we never get
a 64bit counter.
Moving the setting to an earlier point solves the problem.
Fixes: 80f393a23be6 ("KVM: arm/arm64: Support chained PMU counters")
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions