diff options
Diffstat (limited to 'include/arch/aarch64/arch_features.h')
-rw-r--r-- | include/arch/aarch64/arch_features.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/arch/aarch64/arch_features.h b/include/arch/aarch64/arch_features.h index 2b09ba07f9..9bf43bf85a 100644 --- a/include/arch/aarch64/arch_features.h +++ b/include/arch/aarch64/arch_features.h @@ -17,4 +17,10 @@ static inline bool is_armv8_2_ttcnp_present(void) ID_AA64MMFR2_EL1_CNP_MASK) != 0U; } +static inline bool is_armv8_4_ttst_present(void) +{ + return ((read_id_aa64mmfr2_el1() >> ID_AA64MMFR2_EL1_ST_SHIFT) & + ID_AA64MMFR2_EL1_ST_MASK) == 1U; +} + #endif /* ARCH_FEATURES_H */ |