diff options
Diffstat (limited to 'arch/arm64/include/asm/cpufeature.h')
| -rw-r--r-- | arch/arm64/include/asm/cpufeature.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h index 9a555809b89c..61177bac49fa 100644 --- a/arch/arm64/include/asm/cpufeature.h +++ b/arch/arm64/include/asm/cpufeature.h @@ -63,6 +63,11 @@ struct arm64_ftr_bits { s64 safe_val; /* safe value for FTR_EXACT features */ }; +struct arm64_ftr_override { + u64 val; + u64 mask; +}; + /* * @arm64_ftr_reg - Feature register * @strict_mask Bits which should match across all CPUs for sanity. @@ -74,6 +79,7 @@ struct arm64_ftr_reg { u64 user_mask; u64 sys_val; u64 user_val; + struct arm64_ftr_override *override; const struct arm64_ftr_bits *ftr_bits; }; @@ -600,6 +606,7 @@ void __init setup_cpu_features(void); void check_local_cpu_capabilities(void); u64 read_sanitised_ftr_reg(u32 id); +u64 __read_sysreg_by_encoding(u32 sys_id); static inline bool cpu_supports_mixed_endian_el0(void) { @@ -811,6 +818,10 @@ static inline unsigned int get_vmid_bits(u64 mmfr1) return 8; } +extern struct arm64_ftr_override id_aa64mmfr1_override; +extern struct arm64_ftr_override id_aa64pfr1_override; +extern struct arm64_ftr_override id_aa64isar1_override; + u32 get_kvm_ipa_limit(void); void dump_cpu_features(void); |