1 files changed, 63 insertions, 0 deletions
diff --git a/include/uapi/linux/kexec.h b/include/uapi/linux/kexec.h
new file mode 100644
index 000000000..05669c87a
--- /dev/null
+++ b/include/uapi/linux/kexec.h
@@ -0,0 +1,63 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPILINUX_KEXEC_H
+#define _UAPILINUX_KEXEC_H
+
+/* kexec system call -  It loads the new kernel to boot into.
+ * kexec does not sync, or unmount filesystems so if you need
+ * that to happen you need to do that yourself.
+ */
+
+#include <linux/types.h>
+
+/* kexec flags for different usage scenarios */
+#define KEXEC_ON_CRASH		0x00000001
+#define KEXEC_PRESERVE_CONTEXT	0x00000002
+#define KEXEC_ARCH_MASK		0xffff0000
+
+/*
+ * Kexec file load interface flags.
+ * KEXEC_FILE_UNLOAD : Unload already loaded kexec/kdump image.
+ * KEXEC_FILE_ON_CRASH : Load/unload operation belongs to kdump image.
+ * KEXEC_FILE_NO_INITRAMFS : No initramfs is being loaded. Ignore the initrd
+ *                           fd field.
+ */
+#define KEXEC_FILE_UNLOAD	0x00000001
+#define KEXEC_FILE_ON_CRASH	0x00000002
+#define KEXEC_FILE_NO_INITRAMFS	0x00000004
+
+/* These values match the ELF architecture values.
+ * Unless there is a good reason that should continue to be the case.
+ */
+#define KEXEC_ARCH_DEFAULT ( 0 << 16)
+#define KEXEC_ARCH_386     ( 3 << 16)
+#define KEXEC_ARCH_68K     ( 4 << 16)
+#define KEXEC_ARCH_PARISC  (15 << 16)
+#define KEXEC_ARCH_X86_64  (62 << 16)
+#define KEXEC_ARCH_PPC     (20 << 16)
+#define KEXEC_ARCH_PPC64   (21 << 16)
+#define KEXEC_ARCH_IA_64   (50 << 16)
+#define KEXEC_ARCH_ARM     (40 << 16)
+#define KEXEC_ARCH_S390    (22 << 16)
+#define KEXEC_ARCH_SH      (42 << 16)
+#define KEXEC_ARCH_MIPS_LE (10 << 16)
+#define KEXEC_ARCH_MIPS    ( 8 << 16)
+#define KEXEC_ARCH_AARCH64 (183 << 16)
+
+/* The artificial cap on the number of segments passed to kexec_load. */
+#define KEXEC_SEGMENT_MAX 16
+
+#ifndef __KERNEL__
+/*
+ * This structure is used to hold the arguments that are used when
+ * loading  kernel binaries.
+ */
+struct kexec_segment {
+	const void *buf;
+	size_t bufsz;
+	const void *mem;
+	size_t memsz;
+};
+
+#endif /* __KERNEL__ */
+
+#endif /* _UAPILINUX_KEXEC_H */