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/* 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 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) 32#define KEXEC_ARCH_68K ( 4 << 16) 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#define KEXEC_ARCH_AARCH64 (183 << 16) 43 44/* The artificial cap on the number of segments passed to kexec_load. */ 45#define KEXEC_SEGMENT_MAX 16 46 47#ifndef __KERNEL__ 48/* 49 * This structure is used to hold the arguments that are used when 50 * loading kernel binaries. 51 */ 52struct kexec_segment { 53 const void *buf; 54 size_t bufsz; 55 const void *mem; 56 size_t memsz; 57}; 58 59#endif /* __KERNEL__ */ 60 61#endif /* _UAPILINUX_KEXEC_H */ 62