1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_PKEYS_H 2 #ifndef _LINUX_PKEYS_H
3 #define _LINUX_PKEYS_H 3 #define _LINUX_PKEYS_H
4 4
5 #include <linux/mm.h> 5 #include <linux/mm.h>
6 6
7 #define ARCH_DEFAULT_PKEY 0 <<
8 <<
9 #ifdef CONFIG_ARCH_HAS_PKEYS 7 #ifdef CONFIG_ARCH_HAS_PKEYS
10 #include <asm/pkeys.h> 8 #include <asm/pkeys.h>
11 #else /* ! CONFIG_ARCH_HAS_PKEYS */ 9 #else /* ! CONFIG_ARCH_HAS_PKEYS */
12 #define arch_max_pkey() (1) 10 #define arch_max_pkey() (1)
13 #define execute_only_pkey(mm) (0) 11 #define execute_only_pkey(mm) (0)
14 #define arch_override_mprotect_pkey(vma, prot, 12 #define arch_override_mprotect_pkey(vma, prot, pkey) (0)
15 #define PKEY_DEDICATED_EXECUTE_ONLY 0 13 #define PKEY_DEDICATED_EXECUTE_ONLY 0
16 #define ARCH_VM_PKEY_FLAGS 0 14 #define ARCH_VM_PKEY_FLAGS 0
17 15
18 static inline int vma_pkey(struct vm_area_stru 16 static inline int vma_pkey(struct vm_area_struct *vma)
19 { 17 {
20 return 0; 18 return 0;
21 } 19 }
22 20
23 static inline bool mm_pkey_is_allocated(struct 21 static inline bool mm_pkey_is_allocated(struct mm_struct *mm, int pkey)
24 { 22 {
25 return (pkey == 0); 23 return (pkey == 0);
26 } 24 }
27 25
28 static inline int mm_pkey_alloc(struct mm_stru 26 static inline int mm_pkey_alloc(struct mm_struct *mm)
29 { 27 {
30 return -1; 28 return -1;
31 } 29 }
32 30
33 static inline int mm_pkey_free(struct mm_struc 31 static inline int mm_pkey_free(struct mm_struct *mm, int pkey)
34 { 32 {
35 return -EINVAL; 33 return -EINVAL;
36 } 34 }
37 35
38 static inline int arch_set_user_pkey_access(st 36 static inline int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
39 unsigned long init_val 37 unsigned long init_val)
40 { 38 {
41 return 0; 39 return 0;
42 } 40 }
43 41
44 static inline bool arch_pkeys_enabled(void) 42 static inline bool arch_pkeys_enabled(void)
45 { 43 {
46 return false; 44 return false;
>> 45 }
>> 46
>> 47 static inline void copy_init_pkru_to_fpregs(void)
>> 48 {
47 } 49 }
48 50
49 #endif /* ! CONFIG_ARCH_HAS_PKEYS */ 51 #endif /* ! CONFIG_ARCH_HAS_PKEYS */
50 52
51 #endif /* _LINUX_PKEYS_H */ 53 #endif /* _LINUX_PKEYS_H */
52 54
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