Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1#ifndef _UAPILINUX_KEXEC_H
2#define _UAPILINUX_KEXEC_H
3
4/* kexec system call - It loads the new kernel to boot into.
5 * kexec does not sync, or unmount filesystems so if you need
6 * that to happen you need to do that yourself.
7 */
8
9#include <linux/types.h>
10
11/* kexec flags for different usage scenarios */
12#define KEXEC_ON_CRASH 0x00000001
13#define KEXEC_PRESERVE_CONTEXT 0x00000002
14#define KEXEC_ARCH_MASK 0xffff0000
15
16/* These values match the ELF architecture values.
17 * Unless there is a good reason that should continue to be the case.
18 */
19#define KEXEC_ARCH_DEFAULT ( 0 << 16)
20#define KEXEC_ARCH_386 ( 3 << 16)
21#define KEXEC_ARCH_X86_64 (62 << 16)
22#define KEXEC_ARCH_PPC (20 << 16)
23#define KEXEC_ARCH_PPC64 (21 << 16)
24#define KEXEC_ARCH_IA_64 (50 << 16)
25#define KEXEC_ARCH_ARM (40 << 16)
26#define KEXEC_ARCH_S390 (22 << 16)
27#define KEXEC_ARCH_SH (42 << 16)
28#define KEXEC_ARCH_MIPS_LE (10 << 16)
29#define KEXEC_ARCH_MIPS ( 8 << 16)
30
31/* The artificial cap on the number of segments passed to kexec_load. */
32#define KEXEC_SEGMENT_MAX 16
33
34#ifndef __KERNEL__
35/*
36 * This structure is used to hold the arguments that are used when
37 * loading kernel binaries.
38 */
39struct kexec_segment {
40 const void *buf;
41 size_t bufsz;
42 const void *mem;
43 size_t memsz;
44};
45
46/* Load a new kernel image as described by the kexec_segment array
47 * consisting of passed number of segments at the entry-point address.
48 * The flags allow different useage types.
49 */
50extern int kexec_load(void *, size_t, struct kexec_segment *,
51 unsigned long int);
52#endif /* __KERNEL__ */
53
54#endif /* _UAPILINUX_KEXEC_H */