diff options
| author | Joey Gouly <joey.gouly@arm.com> | 2024-08-22 16:11:01 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2024-09-04 12:54:04 +0100 |
| commit | 7f955be9f887d3ce77afb61ea74d907f06fe6f1e (patch) | |
| tree | 64ed14dae6ec546dc08e80191e9dbce9bb736c47 /arch/arm64/include/uapi | |
| parent | fc2d9cd33040630f9d6ff819f1f326d51b354429 (diff) | |
arm64: implement PKEYS support
Implement the PKEYS interface, using the Permission Overlay Extension.
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20240822151113.1479789-19-joey.gouly@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/include/uapi')
| -rw-r--r-- | arch/arm64/include/uapi/asm/mman.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm64/include/uapi/asm/mman.h b/arch/arm64/include/uapi/asm/mman.h index 1e6482a838e1..e7e0c8216243 100644 --- a/arch/arm64/include/uapi/asm/mman.h +++ b/arch/arm64/include/uapi/asm/mman.h @@ -7,4 +7,13 @@ #define PROT_BTI 0x10 /* BTI guarded page */ #define PROT_MTE 0x20 /* Normal Tagged mapping */ +/* Override any generic PKEY permission defines */ +#define PKEY_DISABLE_EXECUTE 0x4 +#define PKEY_DISABLE_READ 0x8 +#undef PKEY_ACCESS_MASK +#define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\ + PKEY_DISABLE_WRITE |\ + PKEY_DISABLE_READ |\ + PKEY_DISABLE_EXECUTE) + #endif /* ! _UAPI__ASM_MMAN_H */ |