diff options
Diffstat (limited to 'include/linux/pkeys.h')
| -rw-r--r-- | include/linux/pkeys.h | 41 |
1 files changed, 26 insertions, 15 deletions
diff --git a/include/linux/pkeys.h b/include/linux/pkeys.h index 1d405a2b7272..e4c08c1ff0c5 100644 --- a/include/linux/pkeys.h +++ b/include/linux/pkeys.h @@ -4,11 +4,6 @@ #include <linux/mm_types.h> #include <asm/mmu_context.h> -#define PKEY_DISABLE_ACCESS 0x1 -#define PKEY_DISABLE_WRITE 0x2 -#define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\ - PKEY_DISABLE_WRITE) - #ifdef CONFIG_ARCH_HAS_PKEYS #include <asm/pkeys.h> #else /* ! CONFIG_ARCH_HAS_PKEYS */ @@ -16,18 +11,34 @@ #define execute_only_pkey(mm) (0) #define arch_override_mprotect_pkey(vma, prot, pkey) (0) #define PKEY_DEDICATED_EXECUTE_ONLY 0 -#endif /* ! CONFIG_ARCH_HAS_PKEYS */ +#define ARCH_VM_PKEY_FLAGS 0 + +static inline bool mm_pkey_is_allocated(struct mm_struct *mm, int pkey) +{ + return (pkey == 0); +} + +static inline int mm_pkey_alloc(struct mm_struct *mm) +{ + return -1; +} -/* - * This is called from mprotect_pkey(). - * - * Returns true if the protection keys is valid. - */ -static inline bool validate_pkey(int pkey) +static inline int mm_pkey_free(struct mm_struct *mm, int pkey) { - if (pkey < 0) - return false; - return (pkey < arch_max_pkey()); + WARN_ONCE(1, "free of protection key when disabled"); + return -EINVAL; } +static inline int arch_set_user_pkey_access(struct task_struct *tsk, int pkey, + unsigned long init_val) +{ + return 0; +} + +static inline void copy_init_pkru_to_fpregs(void) +{ +} + +#endif /* ! CONFIG_ARCH_HAS_PKEYS */ + #endif /* _LINUX_PKEYS_H */ |