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607ca46e DH |
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 | ||
cb105258 VG |
16 | /* |
17 | * Kexec file load interface flags. | |
18 | * KEXEC_FILE_UNLOAD : Unload already loaded kexec/kdump image. | |
19 | * KEXEC_FILE_ON_CRASH : Load/unload operation belongs to kdump image. | |
20 | * KEXEC_FILE_NO_INITRAMFS : No initramfs is being loaded. Ignore the initrd | |
21 | * fd field. | |
22 | */ | |
23 | #define KEXEC_FILE_UNLOAD 0x00000001 | |
24 | #define KEXEC_FILE_ON_CRASH 0x00000002 | |
25 | #define KEXEC_FILE_NO_INITRAMFS 0x00000004 | |
26 | ||
607ca46e DH |
27 | /* These values match the ELF architecture values. |
28 | * Unless there is a good reason that should continue to be the case. | |
29 | */ | |
30 | #define KEXEC_ARCH_DEFAULT ( 0 << 16) | |
31 | #define KEXEC_ARCH_386 ( 3 << 16) | |
7d5f5fa2 | 32 | #define KEXEC_ARCH_68K ( 4 << 16) |
607ca46e DH |
33 | #define KEXEC_ARCH_X86_64 (62 << 16) |
34 | #define KEXEC_ARCH_PPC (20 << 16) | |
35 | #define KEXEC_ARCH_PPC64 (21 << 16) | |
36 | #define KEXEC_ARCH_IA_64 (50 << 16) | |
37 | #define KEXEC_ARCH_ARM (40 << 16) | |
38 | #define KEXEC_ARCH_S390 (22 << 16) | |
39 | #define KEXEC_ARCH_SH (42 << 16) | |
40 | #define KEXEC_ARCH_MIPS_LE (10 << 16) | |
41 | #define KEXEC_ARCH_MIPS ( 8 << 16) | |
42 | ||
43 | /* The artificial cap on the number of segments passed to kexec_load. */ | |
44 | #define KEXEC_SEGMENT_MAX 16 | |
45 | ||
46 | #ifndef __KERNEL__ | |
47 | /* | |
48 | * This structure is used to hold the arguments that are used when | |
49 | * loading kernel binaries. | |
50 | */ | |
51 | struct kexec_segment { | |
52 | const void *buf; | |
53 | size_t bufsz; | |
54 | const void *mem; | |
55 | size_t memsz; | |
56 | }; | |
57 | ||
607ca46e DH |
58 | #endif /* __KERNEL__ */ |
59 | ||
60 | #endif /* _UAPILINUX_KEXEC_H */ |