67 lines
2.0 KiB
C
Executable File
67 lines
2.0 KiB
C
Executable File
#ifndef _UAPILINUX_KEXEC_H
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#define _UAPILINUX_KEXEC_H
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/* kexec system call - It loads the new kernel to boot into.
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* kexec does not sync, or unmount filesystems so if you need
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* that to happen you need to do that yourself.
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*/
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#include <linux/types.h>
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/* kexec flags for different usage scenarios */
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#define KEXEC_ON_CRASH 0x00000001
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#define KEXEC_PRESERVE_CONTEXT 0x00000002
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#define KEXEC_ARCH_MASK 0xffff0000
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/*
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* Kexec file load interface flags.
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* KEXEC_FILE_UNLOAD : Unload already loaded kexec/kdump image.
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* KEXEC_FILE_ON_CRASH : Load/unload operation belongs to kdump image.
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* KEXEC_FILE_NO_INITRAMFS : No initramfs is being loaded. Ignore the initrd
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* fd field.
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*/
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#define KEXEC_FILE_UNLOAD 0x00000001
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#define KEXEC_FILE_ON_CRASH 0x00000002
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#define KEXEC_FILE_NO_INITRAMFS 0x00000004
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/* These values match the ELF architecture values.
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* Unless there is a good reason that should continue to be the case.
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*/
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#define KEXEC_ARCH_DEFAULT ( 0 << 16)
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#define KEXEC_ARCH_386 ( 3 << 16)
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#define KEXEC_ARCH_68K ( 4 << 16)
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#define KEXEC_ARCH_X86_64 (62 << 16)
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#define KEXEC_ARCH_PPC (20 << 16)
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#define KEXEC_ARCH_PPC64 (21 << 16)
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#define KEXEC_ARCH_IA_64 (50 << 16)
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#define KEXEC_ARCH_ARM (40 << 16)
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#define KEXEC_ARCH_S390 (22 << 16)
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#define KEXEC_ARCH_SH (42 << 16)
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#define KEXEC_ARCH_MIPS_LE (10 << 16)
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#define KEXEC_ARCH_MIPS ( 8 << 16)
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/* The artificial cap on the number of segments passed to kexec_load. */
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#define KEXEC_SEGMENT_MAX 16
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#ifndef __KERNEL__
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/*
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* This structure is used to hold the arguments that are used when
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* loading kernel binaries.
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*/
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struct kexec_segment {
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const void *buf;
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size_t bufsz;
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const void *mem;
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size_t memsz;
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};
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/* Load a new kernel image as described by the kexec_segment array
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* consisting of passed number of segments at the entry-point address.
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* The flags allow different useage types.
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*/
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extern int kexec_load(void *, size_t, struct kexec_segment *,
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unsigned long int);
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#endif /* __KERNEL__ */
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#endif /* _UAPILINUX_KEXEC_H */
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