include/uapi/linux/pr.h

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