diff options
| author | Mark Rutland <mark.rutland@arm.com> | 2023-04-12 17:01:34 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2023-04-13 12:27:11 +0100 |
| commit | de1702f65feb516d5394e81a78519de9dc567031 (patch) | |
| tree | b4cc2831f089cdb4a07b168fe7462d8bf8616f6e /arch/arm64/include/asm/pointer_auth.h | |
| parent | ca708599ca43567cdd69f799454f95d1c80ffee5 (diff) | |
arm64: move PAC masks to <asm/pointer_auth.h>
Now that we use XPACLRI to strip PACs within the kernel, the
ptrauth_user_pac_mask() and ptrauth_kernel_pac_mask() definitions no
longer need to live in <asm/compiler.h>.
Move them to <asm/pointer_auth.h>, and ensure that this header is
included where they are used.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Amit Daniel Kachhap <amit.kachhap@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Kristina Martsenko <kristina.martsenko@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20230412160134.306148-4-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm/pointer_auth.h')
| -rw-r--r-- | arch/arm64/include/asm/pointer_auth.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/pointer_auth.h b/arch/arm64/include/asm/pointer_auth.h index b0665db86aa6..d2e0306e65d3 100644 --- a/arch/arm64/include/asm/pointer_auth.h +++ b/arch/arm64/include/asm/pointer_auth.h @@ -10,6 +10,13 @@ #include <asm/memory.h> #include <asm/sysreg.h> +/* + * The EL0/EL1 pointer bits used by a pointer authentication code. + * This is dependent on TBI0/TBI1 being enabled, or bits 63:56 would also apply. + */ +#define ptrauth_user_pac_mask() GENMASK_ULL(54, vabits_actual) +#define ptrauth_kernel_pac_mask() GENMASK_ULL(63, vabits_actual) + #define PR_PAC_ENABLED_KEYS_MASK \ (PR_PAC_APIAKEY | PR_PAC_APIBKEY | PR_PAC_APDAKEY | PR_PAC_APDBKEY) |