projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 66d37570 DH |
1 | #ifndef _LINUX_PKEYS_H |
| 2 | #define _LINUX_PKEYS_H | |
| 3 | ||
| 4 | #include <linux/mm_types.h> | |
| 5 | #include <asm/mmu_context.h> | |
| 6 | ||
| 7 | #ifdef CONFIG_ARCH_HAS_PKEYS | |
| 8 | #include <asm/pkeys.h> | |
| 9 | #else /* ! CONFIG_ARCH_HAS_PKEYS */ | |
| 10 | #define arch_max_pkey() (1) | |
| 62b5f7d0 DH |
11 | #define execute_only_pkey(mm) (0) |
| 12 | #define arch_override_mprotect_pkey(vma, prot, pkey) (0) | |
| 13 | #define PKEY_DEDICATED_EXECUTE_ONLY 0 | |
| a8502b67 | 14 | #define ARCH_VM_PKEY_FLAGS 0 |
| e8c24d3a DH |
15 | |
| 16 | static inline bool mm_pkey_is_allocated(struct mm_struct *mm, int pkey) | |
| 17 | { | |
| 18 | return (pkey == 0); | |
| 19 | } | |
| 20 | ||
| 21 | static inline int mm_pkey_alloc(struct mm_struct *mm) | |
| 22 | { | |
| 23 | return -1; | |
| 24 | } | |
| 25 | ||
| 26 | static inline int mm_pkey_free(struct mm_struct *mm, int pkey) | |
| 27 | { | |
| 28 | WARN_ONCE(1, "free of protection key when disabled"); | |
| 29 | return -EINVAL; | |
| 30 | } | |
| 31 | ||
| 32 | static inline int arch_set_user_pkey_access(struct task_struct *tsk, int pkey, | |
| 33 | unsigned long init_val) | |
| 34 | { | |
| 35 | return 0; | |
| 36 | } | |
| 37 | ||
| 66d37570 DH |
38 | #endif /* ! CONFIG_ARCH_HAS_PKEYS */ |
| 39 | ||
| 66d37570 | 40 | #endif /* _LINUX_PKEYS_H */ |