1 #ifndef _UAPILINUX_KEXEC_H
2 #define _UAPILINUX_KEXEC_H
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.
9 #include <linux/types.h>
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
16 /* These values match the ELF architecture values.
17 * Unless there is a good reason that should continue to be the case.
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)
31 /* The artificial cap on the number of segments passed to kexec_load. */
32 #define KEXEC_SEGMENT_MAX 16
36 * This structure is used to hold the arguments that are used when
37 * loading kernel binaries.
39 struct kexec_segment {
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.
50 extern int kexec_load(void *, size_t, struct kexec_segment *,
52 #endif /* __KERNEL__ */
54 #endif /* _UAPILINUX_KEXEC_H */