From 5541432e09dc2031978188f3e8a00b9fc78cf097 Mon Sep 17 00:00:00 2001 From: Khushit Shah Date: Mon, 31 Aug 2026 10:54:44 +0000 Subject: 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 Reviewed-by: Zenghui Yu (Huawei) Acked-by: Marc Zyngier Reviewed-by: Shameer Kolothum Signed-off-by: Will Deacon --- arch/arm64/kernel/cpu_errata.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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; -- cgit v1.2.3