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| author | Eric Auger <eric.auger@redhat.com> | 2020-01-24 17:25:34 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-15 00:34:17 +0300 |
| commit | a17d21640453719e6f7a9de53d2982f0f7b2357b (patch) | |
| tree | 86b35ee1ba2172f9650bfdac36dea9d38da3d111 /arch | |
| parent | a6229d1b5c223bdcbf031b1fd62ef751cc409d78 (diff) | |
| download | linux-a17d21640453719e6f7a9de53d2982f0f7b2357b.tar.xz | |
KVM: arm64: pmu: Fix chained SW_INCR counters
commit aa76829171e98bd75a0cc00b6248eca269ac7f4f upstream.
At the moment a SW_INCR counter always overflows on 32-bit
boundary, independently on whether the n+1th counter is
programmed as CHAIN.
Check whether the SW_INCR counter is a 64b counter and if so,
implement the 64b logic.
Fixes: 80f393a23be6 ("KVM: arm/arm64: Support chained PMU counters")
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200124142535.29386-4-eric.auger@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions