blob: 7b84565c916c7b0329ac92c79c789748ff9eeb28 [file] [log] [blame]
#ifndef _ASM_X86_PKEYS_H
#define _ASM_X86_PKEYS_H
#define arch_max_pkey() (boot_cpu_has(X86_FEATURE_OSPKE) ? 16 : 1)
extern int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
unsigned long init_val);
* Try to dedicate one of the protection keys to be used as an
* execute-only protection key.
extern int __execute_only_pkey(struct mm_struct *mm);
static inline int execute_only_pkey(struct mm_struct *mm)
if (!boot_cpu_has(X86_FEATURE_OSPKE))
return 0;
return __execute_only_pkey(mm);
extern int __arch_override_mprotect_pkey(struct vm_area_struct *vma,
int prot, int pkey);
static inline int arch_override_mprotect_pkey(struct vm_area_struct *vma,
int prot, int pkey)
if (!boot_cpu_has(X86_FEATURE_OSPKE))
return 0;
return __arch_override_mprotect_pkey(vma, prot, pkey);
#endif /*_ASM_X86_PKEYS_H */