The current code does not initialize next_idx in the virtio ring.
As the ccw bios will always use guest memory at a fixed location,
this queue might != 0 after a reboot.
Lets make the initialization explicit.
Signed-off-by: Christian Borntraeger <borntrae...@de.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.h...@de.ibm.com>
---
pc-bios/s390-ccw/virtio.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/pc-bios/s390-ccw/virtio.c b/pc-bios/s390-ccw/virtio.c
index 4d6e48f..a46914d 100644
--- a/pc-bios/s390-ccw/virtio.c
+++ b/pc-bios/s390-ccw/virtio.c
@@ -124,6 +124,7 @@ static void vring_init(struct vring *vr, unsigned int num,
void *p,
vr->used->flags = VRING_USED_F_NO_NOTIFY;
vr->used->idx = 0;
vr->used_idx = 0;
+ vr->next_idx = 0;
debug_print_addr("init vr", vr);
}
--
1.8.4.2
