diff options
| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-02-12 16:17:35 +0100 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-02-27 09:51:25 +0100 |
| commit | d1028f1b5b4cf83e8af5f48996cf392fb12d391a (patch) | |
| tree | 9d340b40ab005a89a05ac86952fcb047459cb033 /pc-bios | |
| parent | c804c2a71752dd1e150cde768d8c54b02fa8bad9 (diff) | |
s390-ccw.img: Fix sporadic reboot hangs: Initialize next_idx
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 <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'pc-bios')
| -rw-r--r-- | pc-bios/s390-ccw/virtio.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/pc-bios/s390-ccw/virtio.c b/pc-bios/s390-ccw/virtio.c index 4d6e48fcbe..a46914dd68 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); } |