github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-22 04:34:03 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

arm64: errata: pass REVIDR when matching target implementation CPUs

Browse Source 
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: 86edf6bdcf ("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>
This commit is contained in:
Khushit Shah 2026-08-31 10:54:44 +00:00 committed by Will Deacon
parent 1537e55728
commit 5541432e09
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm64/kernel/cpu_errata.c
View File

@ -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;