/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_PKEYS_H #define _LINUX_PKEYS_H #include <linux/mm.h> #ifdef CONFIG_ARCH_HAS_PKEYS #include <asm/pkeys.h> #else /* ! CONFIG_ARCH_HAS_PKEYS */ #define arch_max_pkey() (1) #define execute_only_pkey(mm) (0) #define arch_override_mprotect_pkey(vma, prot, pkey) (0) #define PKEY_DEDICATED_EXECUTE_ONLY 0 #define ARCH_VM_PKEY_FLAGS 0 static inline int vma_pkey(struct vm_area_struct *vma) { return 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; } static inline int mm_pkey_free(struct mm_struct *mm, int pkey) { return -EINVAL; } static inline int arch_set_user_pkey_access(struct task_struct *tsk, int pkey, unsigned long init_val) { return 0; } static inline bool arch_pkeys_enabled(void) { return false; } #endif /* ! CONFIG_ARCH_HAS_PKEYS */ #endif /* _LINUX_PKEYS_H */