kernel-ark/include/asm-i386/kexec.h

34 lines
947 B
C
Raw Normal View History

#ifndef _I386_KEXEC_H
#define _I386_KEXEC_H
#include <asm/fixmap.h>
/*
* KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
* I.e. Maximum page that is mapped directly into kernel memory,
* and kmap is not required.
*
* Someone correct me if FIXADDR_START - PAGEOFFSET is not the correct
* calculation for the amount of memory directly mappable into the
* kernel memory space.
*/
/* Maximum physical address we can use pages from */
#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
/* Maximum address we can reach in physical address mode */
#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
/* Maximum address we can use for the control code buffer */
#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
#define KEXEC_CONTROL_CODE_SIZE 4096
/* The native architecture */
#define KEXEC_ARCH KEXEC_ARCH_386
#define MAX_NOTE_BYTES 1024
typedef u32 note_buf_t[MAX_NOTE_BYTES/4];
extern note_buf_t crash_notes[];
#endif /* _I386_KEXEC_H */