Add build system scaffolding and libc headers

1 files changed, 68 insertions, 0 deletions

diff --git a/include/arch/x86_64/linux/pr.h b/include/arch/x86_64/linux/pr.h
new file mode 100644
index 00000000..cddcd635
--- /dev/null
+++ b/include/arch/x86_64/linux/pr.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _PR_H
+#define _PR_H
+
+#include <linux/types.h>
+
+enum pr_status {
+	PR_STS_SUCCESS = 0x0,
+	/*
+	 * The following error codes are based on SCSI, because the interface
+	 * was originally created for it and has existing users.
+	 */
+	/* Generic device failure. */
+	PR_STS_IOERR = 0x2,
+	PR_STS_RESERVATION_CONFLICT = 0x18,
+	/* Temporary path failure that can be retried. */
+	PR_STS_RETRY_PATH_FAILURE = 0xe0000,
+	/* The request was failed due to a fast failure timer. */
+	PR_STS_PATH_FAST_FAILED = 0xf0000,
+	/* The path cannot be reached and has been marked as failed. */
+	PR_STS_PATH_FAILED = 0x10000,
+};
+
+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 /* _PR_H */