tree ce8a88f5cd97bd8d6d116e5b474d70983c328df4
parent a310b283e357b54533c8168a92e8f1068efdc4d1
author Christian Borntraeger <borntraeger@de.ibm.com> 1425310028 +0100
committer Christian Borntraeger <borntraeger@de.ibm.com> 1425975983 +0100

s390-ccw.img: Allow bigger ramdisk sizes or offsets

The s390-ccw bios creates the the virtqueue at 100MB. For
big ramdisks or offsets (via zipl) this gets overwritten.
As a quick band-aid, lets move the virtqueue into the bss
section, which is at 0x7f00000. As the bios code (text) is
at 0x7e00000 we can now handle ramdisk which are  ~27MB
bigger.

Long term we want to make the s390-ccw bios position
independent and load of at the end of memory.

Reported-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-Id: <1425310029-53396-2-git-send-email-borntraeger@de.ibm.com>