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Diffstat (limited to 'arch/arm64/include/asm/asm_pointer_auth.h')
-rw-r--r--arch/arm64/include/asm/asm_pointer_auth.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/asm_pointer_auth.h b/arch/arm64/include/asm/asm_pointer_auth.h
index d3f4aee42851..ce2a8486992b 100644
--- a/arch/arm64/include/asm/asm_pointer_auth.h
+++ b/arch/arm64/include/asm/asm_pointer_auth.h
@@ -39,14 +39,16 @@ alternative_if ARM64_HAS_GENERIC_AUTH
alternative_else_nop_endif
.endm
- .macro ptrauth_keys_install_kernel tsk, tmp1, tmp2, tmp3
+ .macro ptrauth_keys_install_kernel tsk, sync, tmp1, tmp2, tmp3
alternative_if ARM64_HAS_ADDRESS_AUTH
mov \tmp1, #THREAD_KEYS_KERNEL
add \tmp1, \tsk, \tmp1
ldp \tmp2, \tmp3, [\tmp1, #PTRAUTH_KERNEL_KEY_APIA]
msr_s SYS_APIAKEYLO_EL1, \tmp2
msr_s SYS_APIAKEYHI_EL1, \tmp3
+ .if \sync == 1
isb
+ .endif
alternative_else_nop_endif
.endm
@@ -55,7 +57,7 @@ alternative_else_nop_endif
.macro ptrauth_keys_install_user tsk, tmp1, tmp2, tmp3
.endm
- .macro ptrauth_keys_install_kernel tsk, tmp1, tmp2, tmp3
+ .macro ptrauth_keys_install_kernel tsk, sync, tmp1, tmp2, tmp3
.endm
#endif /* CONFIG_ARM64_PTR_AUTH */