diff options
Diffstat (limited to 'include/common')
| -rw-r--r-- | include/common/aarch64/el3_common_macros.S | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/common/aarch64/el3_common_macros.S b/include/common/aarch64/el3_common_macros.S index 03b977e36..143c70c39 100644 --- a/include/common/aarch64/el3_common_macros.S +++ b/include/common/aarch64/el3_common_macros.S @@ -70,9 +70,14 @@ * * SCR_EL3.EA: Set to one to route External Aborts and SError Interrupts * to EL3 when executing at any EL. + * + * SCR_EL3.{API,APK}: For Armv8.3 pointer authentication feature, + * disable traps to EL3 when accessing key registers or using pointer + * authentication instructions from lower ELs. * --------------------------------------------------------------------- */ - mov x0, #((SCR_RESET_VAL | SCR_EA_BIT | SCR_SIF_BIT) \ + mov_imm x0, ((SCR_RESET_VAL | SCR_EA_BIT | SCR_SIF_BIT | \ + SCR_API_BIT | SCR_APK_BIT) \ & ~(SCR_TWE_BIT | SCR_TWI_BIT | SCR_SMD_BIT)) msr scr_el3, x0 |