Let's setup a PGM PSW, so we won't load 0s when a program exception
happens. Instead we'll load a disabled wait PSW.
Signed-off-by: Janosch Frank <fran...@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntrae...@de.ibm.com>
Reviewed-by: Thomas Huth <th...@redhat.com>
---
pc-bios/s390-ccw/start.S | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/pc-bios/s390-ccw/start.S b/pc-bios/s390-ccw/start.S
index ce519300a1..4d5ad21653 100644
--- a/pc-bios/s390-ccw/start.S
+++ b/pc-bios/s390-ccw/start.S
@@ -34,7 +34,10 @@ remainder:
larl %r2,memsetxc
ex %r3,0(%r2)
done:
- j main /* And call C */
+ /* set up a pgm exception disabled wait psw */
+ larl %r2, disabled_wait_psw
+ mvc 0x01d0(16), 0(%r2)
+ j main /* And call C */
memsetxc:
xc 0(1,%r1),0(%r1)
--
2.25.1
