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-rw-r--r--kernel/include/uapi/linux/pr.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/kernel/include/uapi/linux/pr.h b/kernel/include/uapi/linux/pr.h
new file mode 100644
index 000000000..57d7c0f91
--- /dev/null
+++ b/kernel/include/uapi/linux/pr.h
@@ -0,0 +1,48 @@
+#ifndef _UAPI_PR_H
+#define _UAPI_PR_H
+
+enum pr_type {
+ PR_WRITE_EXCLUSIVE = 1,
+ PR_EXCLUSIVE_ACCESS = 2,
+ PR_WRITE_EXCLUSIVE_REG_ONLY = 3,
+ PR_EXCLUSIVE_ACCESS_REG_ONLY = 4,
+ PR_WRITE_EXCLUSIVE_ALL_REGS = 5,
+ PR_EXCLUSIVE_ACCESS_ALL_REGS = 6,
+};
+
+struct pr_reservation {
+ __u64 key;
+ __u32 type;
+ __u32 flags;
+};
+
+struct pr_registration {
+ __u64 old_key;
+ __u64 new_key;
+ __u32 flags;
+ __u32 __pad;
+};
+
+struct pr_preempt {
+ __u64 old_key;
+ __u64 new_key;
+ __u32 type;
+ __u32 flags;
+};
+
+struct pr_clear {
+ __u64 key;
+ __u32 flags;
+ __u32 __pad;
+};
+
+#define PR_FL_IGNORE_KEY (1 << 0) /* ignore existing key */
+
+#define IOC_PR_REGISTER _IOW('p', 200, struct pr_registration)
+#define IOC_PR_RESERVE _IOW('p', 201, struct pr_reservation)
+#define IOC_PR_RELEASE _IOW('p', 202, struct pr_reservation)
+#define IOC_PR_PREEMPT _IOW('p', 203, struct pr_preempt)
+#define IOC_PR_PREEMPT_ABORT _IOW('p', 204, struct pr_preempt)
+#define IOC_PR_CLEAR _IOW('p', 205, struct pr_clear)
+
+#endif /* _UAPI_PR_H */