Release 4.11 arch/s390/include/asm/os_info.h

/*
 * OS info memory interface
 *
 * Copyright IBM Corp. 2012
 * Author(s): Michael Holzheu <holzheu@linux.vnet.ibm.com>
 */
#ifndef _ASM_S390_OS_INFO_H

#define _ASM_S390_OS_INFO_H


#define OS_INFO_VERSION_MAJOR	1

#define OS_INFO_VERSION_MINOR	1

#define OS_INFO_MAGIC		0x4f53494e464f535aULL 
/* OSINFOSZ */


#define OS_INFO_VMCOREINFO	0

#define OS_INFO_REIPL_BLOCK	1


struct os_info_entry {
	
u64	addr;
	
u64	size;
	
u32	csum;
} 
__packed;


struct os_info {
	
u64	magic;
	
u32	csum;
	
u16	version_major;
	
u16	version_minor;
	
u64	crashkernel_addr;
	
u64	crashkernel_size;
	
struct os_info_entry entry[2];
	
u8	reserved[4024];
} 
__packed;

void os_info_init(void);
void os_info_entry_add(int nr, void *ptr, u64 len);
void os_info_crashkernel_add(unsigned long base, unsigned long size);
u32 os_info_csum(struct os_info *os_info);

#ifdef CONFIG_CRASH_DUMP
void *os_info_old_entry(int nr, unsigned long *size);
int copy_oldmem_kernel(void *dst, void *src, size_t count);
#else


static inline void *os_info_old_entry(int nr, unsigned long *size)
{
	return NULL;
}
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#endif

#endif /* _ASM_S390_OS_INFO_H */
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Martin Schwidefsky
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3
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Directory: arch/s390/include/asm

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