Commit 35382a36 authored by Yicong Yang's avatar Yicong Yang Committed by Will Deacon
Browse files

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: default avatarYicong Yang <yangyicong@hisilicon.com>
Link: https://lore.kernel.org/r/20250329034409.21354-2-yangyicong@huawei.com


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 0af2f6be

arch/arm64/kernel/cpufeature.c

+2 −0
Original line number Diff line number Diff line
@@ -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);