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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2#ifndef _UAPILINUX_KEXEC_H3#define _UAPILINUX_KEXEC_H4 5/* kexec system call - It loads the new kernel to boot into.6 * kexec does not sync, or unmount filesystems so if you need7 * that to happen you need to do that yourself.8 */9 10#include <linux/types.h>11 12/* kexec flags for different usage scenarios */13#define KEXEC_ON_CRASH 0x0000000114#define KEXEC_PRESERVE_CONTEXT 0x0000000215#define KEXEC_UPDATE_ELFCOREHDR 0x0000000416#define KEXEC_CRASH_HOTPLUG_SUPPORT 0x0000000817#define KEXEC_ARCH_MASK 0xffff000018 19/*20 * Kexec file load interface flags.21 * KEXEC_FILE_UNLOAD : Unload already loaded kexec/kdump image.22 * KEXEC_FILE_ON_CRASH : Load/unload operation belongs to kdump image.23 * KEXEC_FILE_NO_INITRAMFS : No initramfs is being loaded. Ignore the initrd24 * fd field.25 */26#define KEXEC_FILE_UNLOAD 0x0000000127#define KEXEC_FILE_ON_CRASH 0x0000000228#define KEXEC_FILE_NO_INITRAMFS 0x0000000429#define KEXEC_FILE_DEBUG 0x0000000830 31/* These values match the ELF architecture values.32 * Unless there is a good reason that should continue to be the case.33 */34#define KEXEC_ARCH_DEFAULT ( 0 << 16)35#define KEXEC_ARCH_386 ( 3 << 16)36#define KEXEC_ARCH_68K ( 4 << 16)37#define KEXEC_ARCH_PARISC (15 << 16)38#define KEXEC_ARCH_X86_64 (62 << 16)39#define KEXEC_ARCH_PPC (20 << 16)40#define KEXEC_ARCH_PPC64 (21 << 16)41#define KEXEC_ARCH_IA_64 (50 << 16)42#define KEXEC_ARCH_ARM (40 << 16)43#define KEXEC_ARCH_S390 (22 << 16)44#define KEXEC_ARCH_SH (42 << 16)45#define KEXEC_ARCH_MIPS_LE (10 << 16)46#define KEXEC_ARCH_MIPS ( 8 << 16)47#define KEXEC_ARCH_AARCH64 (183 << 16)48#define KEXEC_ARCH_RISCV (243 << 16)49#define KEXEC_ARCH_LOONGARCH (258 << 16)50 51/* The artificial cap on the number of segments passed to kexec_load. */52#define KEXEC_SEGMENT_MAX 1653 54#ifndef __KERNEL__55/*56 * This structure is used to hold the arguments that are used when57 * loading kernel binaries.58 */59struct kexec_segment {60 const void *buf;61 __kernel_size_t bufsz;62 const void *mem;63 __kernel_size_t memsz;64};65 66#endif /* __KERNEL__ */67 68#endif /* _UAPILINUX_KEXEC_H */69