From: Yicong Yang Date: Sat, 29 Mar 2025 03:44:07 +0000 (+0800) Subject: arm64/cpufeature: Add missing id_aa64mmfr4 feature reg update X-Git-Tag: v6.16-rc1~133^2~10^2~2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=35382a3646404891aba092013b855c3db4b8b487;p=thirdparty%2Flinux.git arm64/cpufeature: Add missing id_aa64mmfr4 feature reg update Add missing id_aa64mmfr4 feature register check and update in update_cpu_features(). Update the taint status as well. Signed-off-by: Yicong Yang Link: https://lore.kernel.org/r/20250329034409.21354-2-yangyicong@huawei.com Signed-off-by: Will Deacon --- diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 9c4d6d552b25c..75ef319c1ef8d 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -1403,6 +1403,8 @@ void update_cpu_features(int cpu, info->reg_id_aa64mmfr2, boot->reg_id_aa64mmfr2); taint |= check_update_ftr_reg(SYS_ID_AA64MMFR3_EL1, cpu, info->reg_id_aa64mmfr3, boot->reg_id_aa64mmfr3); + taint |= check_update_ftr_reg(SYS_ID_AA64MMFR4_EL1, cpu, + info->reg_id_aa64mmfr4, boot->reg_id_aa64mmfr4); taint |= check_update_ftr_reg(SYS_ID_AA64PFR0_EL1, cpu, info->reg_id_aa64pfr0, boot->reg_id_aa64pfr0);