625f1c8219
o Following patch exports kexec global variable "crash_notes" to user space through sysfs as kernel attribute in /sys/kernel. Signed-off-by: Maneesh Soni <maneesh@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
34 lines
947 B
C
34 lines
947 B
C
#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 */
|