diff options
Diffstat (limited to 'include/arch/aarch64/el3_common_macros.S')
| -rw-r--r-- | include/arch/aarch64/el3_common_macros.S | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/arch/aarch64/el3_common_macros.S b/include/arch/aarch64/el3_common_macros.S index 5f5e0c69..22b32b49 100644 --- a/include/arch/aarch64/el3_common_macros.S +++ b/include/arch/aarch64/el3_common_macros.S @@ -76,9 +76,16 @@ * authentication instructions from lower ELs. * --------------------------------------------------------------------- */ - mov_imm x0, ((SCR_RESET_VAL | SCR_EA_BIT | SCR_SIF_BIT | \ - SCR_API_BIT | SCR_APK_BIT) \ + mov_imm x0, ((SCR_RESET_VAL | SCR_EA_BIT | SCR_SIF_BIT) \ & ~(SCR_TWE_BIT | SCR_TWI_BIT | SCR_SMD_BIT)) +#if CTX_INCLUDE_PAUTH_REGS + /* + * If the pointer authentication registers are saved during world + * switches, enable pointer authentication everywhere, as it is safe to + * do so. + */ + orr x0, x0, #(SCR_API_BIT | SCR_APK_BIT) +#endif msr scr_el3, x0 /* --------------------------------------------------------------------- |