diff options
| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-07-01 12:17:41 +0200 |
|---|---|---|
| committer | Cornelia Huck <cornelia.huck@de.ibm.com> | 2014-07-08 15:08:03 +0200 |
| commit | f2879a5c9e45e8432d15deea84fdf53586e9949c (patch) | |
| tree | 4f4737fa7539d8ceb47c615502a69c98426ddcf1 /pc-bios/s390-ccw/s390-ccw.h | |
| parent | eaa4980185943da6e36f6f2e052d41924705e1ea (diff) | |
pc-bios/s390-ccw: store proper subsystem information word
POP chapter 17 requires to store a subsystem information word at 184
during IPL. Furthermore bytes 188-191 should be zero. The bootmap might
contain data blocks that are written to the first page. We have to
write these values after we processed the bootmap and before the final
IPL.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'pc-bios/s390-ccw/s390-ccw.h')
| -rw-r--r-- | pc-bios/s390-ccw/s390-ccw.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/pc-bios/s390-ccw/s390-ccw.h b/pc-bios/s390-ccw/s390-ccw.h index 959aed0d0b..2b773deafa 100644 --- a/pc-bios/s390-ccw/s390-ccw.h +++ b/pc-bios/s390-ccw/s390-ccw.h @@ -50,6 +50,7 @@ void disabled_wait(void); /* main.c */ void virtio_panic(const char *string); +void write_subsystem_identification(void); /* sclp-ascii.c */ void sclp_print(const char *string); |