You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
4 years ago
|
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
||
|
|
#ifndef LINUX_KEXEC_H
|
||
|
|
#define LINUX_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_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
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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 /* LINUX_KEXEC_H */
|