LXR linux/include/uapi/linux/pr.h

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2#ifndef _UAPI_PR_H
   3#define _UAPI_PR_H
   4
   5#include <linux/types.h>
   6
   7enum pr_type {
   8        PR_WRITE_EXCLUSIVE              = 1,
   9        PR_EXCLUSIVE_ACCESS             = 2,
  10        PR_WRITE_EXCLUSIVE_REG_ONLY     = 3,
  11        PR_EXCLUSIVE_ACCESS_REG_ONLY    = 4,
  12        PR_WRITE_EXCLUSIVE_ALL_REGS     = 5,
  13        PR_EXCLUSIVE_ACCESS_ALL_REGS    = 6,
  14};
  15
  16struct pr_reservation {
  17        __u64   key;
  18        __u32   type;
  19        __u32   flags;
  20};
  21
  22struct pr_registration {
  23        __u64   old_key;
  24        __u64   new_key;
  25        __u32   flags;
  26        __u32   __pad;
  27};
  28
  29struct pr_preempt {
  30        __u64   old_key;
  31        __u64   new_key;
  32        __u32   type;
  33        __u32   flags;
  34};
  35
  36struct pr_clear {
  37        __u64   key;
  38        __u32   flags;
  39        __u32   __pad;
  40};
  41
  42#define PR_FL_IGNORE_KEY        (1 << 0)        /* ignore existing key */
  43
  44#define IOC_PR_REGISTER         _IOW('p', 200, struct pr_registration)
  45#define IOC_PR_RESERVE          _IOW('p', 201, struct pr_reservation)
  46#define IOC_PR_RELEASE          _IOW('p', 202, struct pr_reservation)
  47#define IOC_PR_PREEMPT          _IOW('p', 203, struct pr_preempt)
  48#define IOC_PR_PREEMPT_ABORT    _IOW('p', 204, struct pr_preempt)
  49#define IOC_PR_CLEAR            _IOW('p', 205, struct pr_clear)
  50
  51#endif /* _UAPI_PR_H */
  52