diff options
Diffstat (limited to 'arch/arm64/kernel/cpuinfo.c')
| -rw-r--r-- | arch/arm64/kernel/cpuinfo.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c index 94525abd1c22..ba834909a28b 100644 --- a/arch/arm64/kernel/cpuinfo.c +++ b/arch/arm64/kernel/cpuinfo.c @@ -160,6 +160,8 @@ static const char *const hwcap_str[] = { [KERNEL_HWCAP_SME_SFEXPA] = "smesfexpa", [KERNEL_HWCAP_SME_STMOP] = "smestmop", [KERNEL_HWCAP_SME_SMOP4] = "smesmop4", + [KERNEL_HWCAP_MTE_FAR] = "mtefar", + [KERNEL_HWCAP_MTE_STORE_ONLY] = "mtestoreonly", }; #ifdef CONFIG_COMPAT @@ -496,8 +498,11 @@ static void __cpuinfo_store_cpu(struct cpuinfo_arm64 *info) if (id_aa64pfr0_32bit_el0(info->reg_id_aa64pfr0)) __cpuinfo_store_cpu_32bit(&info->aarch32); - if (id_aa64pfr0_mpam(info->reg_id_aa64pfr0)) - info->reg_mpamidr = read_cpuid(MPAMIDR_EL1); + /* + * info->reg_mpamidr deferred to {init,update}_cpu_features because we + * don't want to read it (and trigger a trap on buggy firmware) if + * using an aa64pfr0_el1 override to unconditionally disable MPAM. + */ if (IS_ENABLED(CONFIG_ARM64_SME) && id_aa64pfr1_sme(info->reg_id_aa64pfr1)) { |