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| author | Michael Holzheu <holzheu@de.ibm.com> | 2006-09-20 15:58:49 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-09-20 15:58:49 +0200 |
| commit | ff6b8ea68f4b7353f88b97024f28127e2148aa00 (patch) | |
| tree | 67ebb74cbbc042d99325ff33c3f80e4b3e0a1c42 /arch/s390/kernel/head31.S | |
| parent | 331c982d4a6b43cdc0d056956a1cae8a7d6237bf (diff) | |
| download | linux-ff6b8ea68f4b7353f88b97024f28127e2148aa00.tar.bz2 | |
[S390] ipl/dump on panic.
It is now possible to specify a ccw/fcp dump device which is used to
automatically create a system dump in case of a kernel panic. The dump
device can be configured under /sys/firmware/dump.
In addition it is now possible to specify a ccw/fcp device which is used
for the next reboot of Linux. The reipl device can be configured under
/sys/firmware/reipl.
Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/head31.S')
| -rw-r--r-- | arch/s390/kernel/head31.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S index 0e46077d7140..d8bb68a72527 100644 --- a/arch/s390/kernel/head31.S +++ b/arch/s390/kernel/head31.S @@ -38,6 +38,7 @@ startup:basr %r13,0 # get base startup_continue: basr %r13,0 # get base .LPG1: GET_IPL_DEVICE + mvi __LC_AR_MODE_ID,0 # set ESA flag (mode 0) lctl %c0,%c15,.Lctl-.LPG1(%r13) # load control registers l %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area # move IPL device to lowcore @@ -274,6 +275,8 @@ startup_continue: .Lparmaddr: .long PARMAREA .Lsccbaddr: .long .Lsccb .org 0x12000 +.globl s390_readinfo_sccb +s390_readinfo_sccb: .Lsccb: .hword 0x1000 # length, one page .byte 0x00,0x00,0x00 |