projects / mirror_ubuntu-bionic-kernel.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 | ||
| 5 | #include <linux/mm_types.h> | |
| 6 | #include <asm/mmu_context.h> | |
| 7 | ||
| 8 | #ifdef CONFIG_ARCH_HAS_PKEYS | |
| 9 | #include <asm/pkeys.h> | |
| 10 | #else /* ! CONFIG_ARCH_HAS_PKEYS */ | |
| 11 | #define arch_max_pkey() (1) | |
| 62b5f7d0 DH |
12 | #define execute_only_pkey(mm) (0) |
| 13 | #define arch_override_mprotect_pkey(vma, prot, pkey) (0) | |
| 14 | #define PKEY_DEDICATED_EXECUTE_ONLY 0 | |
| a8502b67 | 15 | #define ARCH_VM_PKEY_FLAGS 0 |
| e8c24d3a DH |
16 | |
| 17 | static inline bool mm_pkey_is_allocated(struct mm_struct *mm, int pkey) | |
| 18 | { | |
| 19 | return (pkey == 0); | |
| 20 | } | |
| 21 | ||
| 22 | static inline int mm_pkey_alloc(struct mm_struct *mm) | |
| 23 | { | |
| 24 | return -1; | |
| 25 | } | |
| 26 | ||
| 27 | static inline int mm_pkey_free(struct mm_struct *mm, int pkey) | |
| 28 | { | |
| e8c24d3a DH |
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 | ||
| acd547b2 DH |
38 | static inline void copy_init_pkru_to_fpregs(void) |
| 39 | { | |
| 40 | } | |
| 41 | ||
| 66d37570 DH |
42 | #endif /* ! CONFIG_ARCH_HAS_PKEYS */ |
| 43 | ||
| 66d37570 | 44 | #endif /* _LINUX_PKEYS_H */ |