[net-next-2.6.git] / include / asm-x86_64 / kexec.h

#ifndef _X86_64_KEXEC_H
#define _X86_64_KEXEC_H

#include <asm/page.h>
#include <asm/proto.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.
 *
 * So far x86_64 is limited to 40 physical address bits.
 */

/* Maximum physical address we can use pages from */
#define KEXEC_SOURCE_MEMORY_LIMIT      (0xFFFFFFFFFFUL)
/* Maximum address we can reach in physical address mode */
#define KEXEC_DESTINATION_MEMORY_LIMIT (0xFFFFFFFFFFUL)
/* Maximum address we can use for the control pages */
#define KEXEC_CONTROL_MEMORY_LIMIT     (0xFFFFFFFFFFUL)

/* Allocate one page for the pdp and the second for the code */
#define KEXEC_CONTROL_CODE_SIZE  (4096UL + 4096UL)

/* The native architecture */
#define KEXEC_ARCH KEXEC_ARCH_X86_64

#define MAX_NOTE_BYTES 1024

#endif /* _X86_64_KEXEC_H */
Commit	Line	Data
5234f5eb EB	1	#ifndef _X86_64_KEXEC_H
	2	#define _X86_64_KEXEC_H
	3
	4	#include <asm/page.h>
	5	#include <asm/proto.h>
	6
	7	/*
	8	* KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
	9	* I.e. Maximum page that is mapped directly into kernel memory,
	10	* and kmap is not required.
	11	*
	12	* So far x86_64 is limited to 40 physical address bits.
	13	*/
	14
	15	/* Maximum physical address we can use pages from */
	16	#define KEXEC_SOURCE_MEMORY_LIMIT (0xFFFFFFFFFFUL)
	17	/* Maximum address we can reach in physical address mode */
	18	#define KEXEC_DESTINATION_MEMORY_LIMIT (0xFFFFFFFFFFUL)
	19	/* Maximum address we can use for the control pages */
	20	#define KEXEC_CONTROL_MEMORY_LIMIT (0xFFFFFFFFFFUL)
	21
	22	/* Allocate one page for the pdp and the second for the code */
	23	#define KEXEC_CONTROL_CODE_SIZE (4096UL + 4096UL)
	24
	25	/* The native architecture */
	26	#define KEXEC_ARCH KEXEC_ARCH_X86_64
	27
625f1c82	28	#define MAX_NOTE_BYTES 1024
625f1c82	29
5234f5eb	30	#endif /* _X86_64_KEXEC_H */