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[S390] kdump backend code

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This patch provides the architecture specific part of the s390 kdump
support.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Michael Holzheu
2011-10-30 15:16:40 +01:00
committed by Martin Schwidefsky
parent 7f0bf656c6
commit 60a0c68df2
19 changed files with 1080 additions and 14 deletions
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13
arch/s390/include/asm/setup.h
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@@ -26,15 +26,21 @@
#define IPL_DEVICE (*(unsigned long *) (0x10404))
#define INITRD_START (*(unsigned long *) (0x1040C))
#define INITRD_SIZE (*(unsigned long *) (0x10414))
#define OLDMEM_BASE (*(unsigned long *) (0x1041C))
#define OLDMEM_SIZE (*(unsigned long *) (0x10424))
#else /* __s390x__ */
#define IPL_DEVICE (*(unsigned long *) (0x10400))
#define INITRD_START (*(unsigned long *) (0x10408))
#define INITRD_SIZE (*(unsigned long *) (0x10410))
#define OLDMEM_BASE (*(unsigned long *) (0x10418))
#define OLDMEM_SIZE (*(unsigned long *) (0x10420))
#endif /* __s390x__ */
#define COMMAND_LINE ((char *) (0x10480))
#define CHUNK_READ_WRITE 0
#define CHUNK_READ_ONLY 1
#define CHUNK_OLDMEM 4
#define CHUNK_CRASHK 5
struct mem_chunk {
unsigned long addr;
@@ -48,6 +54,8 @@ extern int memory_end_set;
extern unsigned long memory_end;
void detect_memory_layout(struct mem_chunk chunk[]);
void create_mem_hole(struct mem_chunk memory_chunk[], unsigned long addr,
unsigned long size, int type);
#define PRIMARY_SPACE_MODE 0
#define ACCESS_REGISTER_MODE 1
@@ -106,6 +114,7 @@ extern unsigned int user_mode;
#endif /* __s390x__ */
#define ZFCPDUMP_HSA_SIZE (32UL<<20)
#define ZFCPDUMP_HSA_SIZE_MAX (64UL<<20)
/*
* Console mode. Override with conmode=
@@ -134,10 +143,14 @@ extern char kernel_nss_name[];
#define IPL_DEVICE 0x10404
#define INITRD_START 0x1040C
#define INITRD_SIZE 0x10414
#define OLDMEM_BASE 0x1041C
#define OLDMEM_SIZE 0x10424
#else /* __s390x__ */
#define IPL_DEVICE 0x10400
#define INITRD_START 0x10408
#define INITRD_SIZE 0x10410
#define OLDMEM_BASE 0x10418
#define OLDMEM_SIZE 0x10420
#endif /* __s390x__ */
#define COMMAND_LINE 0x10480