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[S390] boot from NSS support

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Add support to boot from a named saved segment (NSS).

Signed-off-by: Hongjie Yang <hongjie@us.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Hongjie Yang 2007-02-05 21:18:24 +01:00 • committed by Martin Schwidefsky
commit fe355b7f1c
6 changed files with 282 additions and 65 deletions
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8
include/asm-s390/setup.h
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@ -156,13 +156,19 @@ struct ipl_parameter_block {
extern u32 ipl_flags;
extern u16 ipl_devno;
void do_reipl(void);
extern void do_reipl(void);
extern void ipl_save_parameters(void);
enum {
IPL_DEVNO_VALID = 1,
IPL_PARMBLOCK_VALID = 2,
IPL_NSS_VALID = 4,
};
#define NSS_NAME_SIZE 8
extern char kernel_nss_name[];
#define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \
IPL_PARMBLOCK_ORIGIN)
#define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len)