1 #ifndef _UAPI_PR_H 2 #define _UAPI_PR_H 3 4 #include <linux/types.h> 5 6 enum pr_type { 7 PR_WRITE_EXCLUSIVE = 1, 8 PR_EXCLUSIVE_ACCESS = 2, 9 PR_WRITE_EXCLUSIVE_REG_ONLY = 3, 10 PR_EXCLUSIVE_ACCESS_REG_ONLY = 4, 11 PR_WRITE_EXCLUSIVE_ALL_REGS = 5, 12 PR_EXCLUSIVE_ACCESS_ALL_REGS = 6, 13 }; 14 15 struct pr_reservation { 16 __u64 key; 17 __u32 type; 18 __u32 flags; 19 }; 20 21 struct pr_registration { 22 __u64 old_key; 23 __u64 new_key; 24 __u32 flags; 25 __u32 __pad; 26 }; 27 28 struct pr_preempt { 29 __u64 old_key; 30 __u64 new_key; 31 __u32 type; 32 __u32 flags; 33 }; 34 35 struct pr_clear { 36 __u64 key; 37 __u32 flags; 38 __u32 __pad; 39 }; 40 41 #define PR_FL_IGNORE_KEY (1 << 0) /* ignore existing key */ 42 43 #define IOC_PR_REGISTER _IOW('p', 200, struct pr_registration) 44 #define IOC_PR_RESERVE _IOW('p', 201, struct pr_reservation) 45 #define IOC_PR_RELEASE _IOW('p', 202, struct pr_reservation) 46 #define IOC_PR_PREEMPT _IOW('p', 203, struct pr_preempt) 47 #define IOC_PR_PREEMPT_ABORT _IOW('p', 204, struct pr_preempt) 48 #define IOC_PR_CLEAR _IOW('p', 205, struct pr_clear) 49 50 #endif /* _UAPI_PR_H */ 51