projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 66d37570 DH |
2 | #ifndef _LINUX_PKEYS_H |
| 3 | #define _LINUX_PKEYS_H | |
| 4 | ||
| 555934a7 | 5 | #include <linux/mm.h> |
| 66d37570 | 6 | |
| d4ffd5df JL |
7 | #define ARCH_DEFAULT_PKEY 0 |
| 8 | ||
| 66d37570 DH |
9 | #ifdef CONFIG_ARCH_HAS_PKEYS |
| 10 | #include <asm/pkeys.h> | |
| 11 | #else /* ! CONFIG_ARCH_HAS_PKEYS */ | |
| 12 | #define arch_max_pkey() (1) | |
| 62b5f7d0 DH |
13 | #define execute_only_pkey(mm) (0) |
| 14 | #define arch_override_mprotect_pkey(vma, prot, pkey) (0) | |
| 15 | #define PKEY_DEDICATED_EXECUTE_ONLY 0 | |
| a8502b67 | 16 | #define ARCH_VM_PKEY_FLAGS 0 |
| e8c24d3a | 17 | |
| dbec10e5 ME |
18 | static inline int vma_pkey(struct vm_area_struct *vma) |
| 19 | { | |
| 20 | return 0; | |
| 21 | } | |
| 22 | ||
| e8c24d3a DH |
23 | static inline bool mm_pkey_is_allocated(struct mm_struct *mm, int pkey) |
| 24 | { | |
| 25 | return (pkey == 0); | |
| 26 | } | |
| 27 | ||
| 28 | static inline int mm_pkey_alloc(struct mm_struct *mm) | |
| 29 | { | |
| 30 | return -1; | |
| 31 | } | |
| 32 | ||
| 33 | static inline int mm_pkey_free(struct mm_struct *mm, int pkey) | |
| 34 | { | |
| e8c24d3a DH |
35 | return -EINVAL; |
| 36 | } | |
| 37 | ||
| 38 | static inline int arch_set_user_pkey_access(struct task_struct *tsk, int pkey, | |
| 39 | unsigned long init_val) | |
| 40 | { | |
| 41 | return 0; | |
| 42 | } | |
| 43 | ||
| 4414ef95 ME |
44 | static inline bool arch_pkeys_enabled(void) |
| 45 | { | |
| 46 | return false; | |
| 47 | } | |
| 48 | ||
| 66d37570 DH |
49 | #endif /* ! CONFIG_ARCH_HAS_PKEYS */ |
| 50 | ||
| 66d37570 | 51 | #endif /* _LINUX_PKEYS_H */ |