607ca46e97
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
#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_ARCH_MASK 0xffff0000
|
|
|
|
/* 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_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)
|
|
|
|
/* 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;
|
|
size_t bufsz;
|
|
const void *mem;
|
|
size_t memsz;
|
|
};
|
|
|
|
/* Load a new kernel image as described by the kexec_segment array
|
|
* consisting of passed number of segments at the entry-point address.
|
|
* The flags allow different useage types.
|
|
*/
|
|
extern int kexec_load(void *, size_t, struct kexec_segment *,
|
|
unsigned long int);
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* _UAPILINUX_KEXEC_H */
|