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H A Ds390-ccw.hf2879a5c Tue Jul 01 10:17:41 GMT 2014 Christian Borntraeger <borntraeger@de.ibm.com> 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>
H A Dbootmap.cf2879a5c Tue Jul 01 10:17:41 GMT 2014 Christian Borntraeger <borntraeger@de.ibm.com> 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>
H A Dmain.cf2879a5c Tue Jul 01 10:17:41 GMT 2014 Christian Borntraeger <borntraeger@de.ibm.com> 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>