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| author | James Clark <james.clark@arm.com> | 2022-12-09 19:44:46 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2022-12-12 12:07:14 +0300 |
| commit | aff234839f8b80ac101e6c2f14d0e44b236efa48 (patch) | |
| tree | 81b6e0f5ad1c480705995526722f0bd68bd6ce6b /Documentation/virt | |
| parent | 753d734f3f347e7fc49b819472bbf61dcfc1a16f (diff) | |
| download | linux-aff234839f8b80ac101e6c2f14d0e44b236efa48.tar.xz | |
KVM: arm64: PMU: Fix PMCR_EL0 reset value
ARMV8_PMU_PMCR_N_MASK is an unshifted value which results in the wrong
reset value for PMCR_EL0, so shift it to fix it.
This fixes the following error when running qemu:
$ qemu-system-aarch64 -cpu host -machine type=virt,accel=kvm -kernel ...
target/arm/helper.c:1813: pmevcntr_rawwrite: Assertion `counter < pmu_num_counters(env)' failed.
Fixes: 292e8f149476 ("KVM: arm64: PMU: Simplify PMCR_EL0 reset handling")
Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221209164446.1972014-2-james.clark@arm.com
Diffstat (limited to 'Documentation/virt')
0 files changed, 0 insertions, 0 deletions