diff options
| author | Khushit Shah <khushit.shah@nutanix.com> | 2026-08-31 10:54:44 +0000 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2026-09-03 13:02:01 +0000 |
| commit | 5541432e09dc2031978188f3e8a00b9fc78cf097 (patch) | |
| tree | 92ab00dd97f520d5f2c0a8f8d410eef53f335a5b | |
| parent | 1537e55728ec2bc506c74ea69b93cd859da58fb8 (diff) | |
arm64: errata: pass REVIDR when matching target implementation CPUs
When target implementation CPUs are provided, is_affected_midr_range()
accidentally passed the MIDR as both arguments to __is_affected_midr_range(),
so the REVIDR mask check operated on the wrong register.
Pass REVIDR as intended.
Fixes: 86edf6bdcf05 ("smccc/kvm_guest: Enable errata based on implementation CPUs")
Cc: stable@vger.kernel.org
Signed-off-by: Khushit Shah <khushit.shah@nutanix.com>
Reviewed-by: Zenghui Yu (Huawei) <zenghui.yu@linux.dev>
Acked-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Shameer Kolothum <skolothumtho@nvidia.com>
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | arch/arm64/kernel/cpu_errata.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 5db8f0619e4b..b33dccfafaf8 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -82,7 +82,7 @@ is_affected_midr_range(const struct arm64_cpu_capabilities *entry, int scope) for (i = 0; i < target_impl_cpu_num; i++) { if (__is_affected_midr_range(entry, target_impl_cpus[i].midr, - target_impl_cpus[i].midr)) + target_impl_cpus[i].revidr)) return true; } return false; |