[linux-2.6-block.git] / include / uapi / linux / kexec.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPILINUX_KEXEC_H
#define _UAPILINUX_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_UPDATE_ELFCOREHDR	0x00000004
#define KEXEC_CRASH_HOTPLUG_SUPPORT 0x00000008
#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
#define KEXEC_FILE_DEBUG	0x00000008

/* 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_PARISC  (15 << 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)
#define KEXEC_ARCH_RISCV   (243 << 16)
#define KEXEC_ARCH_LOONGARCH	(258 << 16)

/* The artificial cap on the number of segments passed to kexec_load. */
#define KEXEC_SEGMENT_MAX 16

#ifndef __KERNEL__
/*
 * This structure is used to hold the arguments that are used when
 * loading  kernel binaries.
 */
struct kexec_segment {
	const void *buf;
	__kernel_size_t bufsz;
	const void *mem;
	__kernel_size_t memsz;
};

#endif /* __KERNEL__ */

#endif /* _UAPILINUX_KEXEC_H */
Commit	Line	Data
6f52b16c	1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
607ca46e DH	2	#ifndef _UAPILINUX_KEXEC_H
	3	#define _UAPILINUX_KEXEC_H
	4
	5	/* kexec system call - It loads the new kernel to boot into.
	6	* kexec does not sync, or unmount filesystems so if you need
	7	* 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 0x00000001
	14	#define KEXEC_PRESERVE_CONTEXT 0x00000002
a72bbec7	15	#define KEXEC_UPDATE_ELFCOREHDR 0x00000004
79365026	16	#define KEXEC_CRASH_HOTPLUG_SUPPORT 0x00000008
607ca46e DH	17	#define KEXEC_ARCH_MASK 0xffff0000
607ca46e DH	18
cb105258 VG	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 initrd
	24	* fd field.
	25	*/
	26	#define KEXEC_FILE_UNLOAD 0x00000001
	27	#define KEXEC_FILE_ON_CRASH 0x00000002
	28	#define KEXEC_FILE_NO_INITRAMFS 0x00000004
cbc2fe9d	29	#define KEXEC_FILE_DEBUG 0x00000008
cb105258	30
607ca46e DH	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)
7d5f5fa2	36	#define KEXEC_ARCH_68K ( 4 << 16)
fc697dc0	37	#define KEXEC_ARCH_PARISC (15 << 16)
607ca46e DH	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)
d28f6df1	47	#define KEXEC_ARCH_AARCH64 (183 << 16)
d83e682e	48	#define KEXEC_ARCH_RISCV (243 << 16)
08145b08	49	#define KEXEC_ARCH_LOONGARCH (258 << 16)
607ca46e DH	50
	51	/* The artificial cap on the number of segments passed to kexec_load. */
	52	#define KEXEC_SEGMENT_MAX 16
	53
	54	#ifndef __KERNEL__
	55	/*
	56	* This structure is used to hold the arguments that are used when
	57	* loading kernel binaries.
	58	*/
	59	struct kexec_segment {
	60	const void *buf;
8b4bca21	61	__kernel_size_t bufsz;
607ca46e	62	const void *mem;
8b4bca21	63	__kernel_size_t memsz;
607ca46e DH	64	};
607ca46e DH	65
607ca46e DH	66	#endif /* __KERNEL__ */
	67
	68	#endif /* _UAPILINUX_KEXEC_H */