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authorEric Auger <eric.auger@redhat.com>2020-01-24 17:25:32 +0300
committerMarc Zyngier <maz@kernel.org>2020-01-28 15:50:32 +0300
commit3837407c1aa1101ed5e214c7d6041e7a23335c6e (patch)
tree1a7addbb3015674bffbde53ec6c64cf25396cd69 /net/nfc/nci/lib.c
parent21aecdbd7f3ab02c9b82597dc733ee759fb8b274 (diff)
downloadlinux-3837407c1aa1101ed5e214c7d6041e7a23335c6e.tar.xz
KVM: arm64: pmu: Don't increment SW_INCR if PMCR.E is unset
The specification says PMSWINC increments PMEVCNTR<n>_EL1 by 1 if PMEVCNTR<n>_EL0 is enabled and configured to count SW_INCR. For PMEVCNTR<n>_EL0 to be enabled, we need both PMCNTENSET to be set for the corresponding event counter but we also need the PMCR.E bit to be set. Fixes: 7a0adc7064b8 ("arm64: KVM: Add access handler for PMSWINC register") Signed-off-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Andrew Murray <andrew.murray@arm.com> Acked-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20200124142535.29386-2-eric.auger@redhat.com
Diffstat (limited to 'net/nfc/nci/lib.c')
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