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-rw-r--r--pc-bios/s390-ccw/virtio.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/pc-bios/s390-ccw/virtio.c b/pc-bios/s390-ccw/virtio.c
index 1d34e8c1aa..b333734955 100644
--- a/pc-bios/s390-ccw/virtio.c
+++ b/pc-bios/s390-ccw/virtio.c
@@ -97,7 +97,8 @@ static int run_ccw(VDev *vdev, int cmd, void *ptr, int len)
/* start command processing */
stsch_err(vdev->schid, &schib);
- schib.scsw.ctrl = SCSW_FCTL_START_FUNC;
+ /* enable the subchannel for IPL device */
+ schib.pmcw.ena = 1;
msch(vdev->schid, &schib);
/* start subchannel command */