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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2015-05-04 15:27:25 +0200 |
|---|---|---|
| committer | Cornelia Huck <cornelia.huck@de.ibm.com> | 2015-05-08 10:36:02 +0200 |
| commit | 77ae0b2a6e731ab7b97e9fae401c579397edb31c (patch) | |
| tree | 4efb14aa0d7e770efb04016ebf924cabe5f82ca9 | |
| parent | f50616a81b7f88a9adac16f3ea0236311a748eca (diff) | |
s390-virtio: clear {used,avail}_event_idx on reset as well
The old s390-virtio transport clears the vring used/avail indices in
the shared area on reset. When we enabled event_idx for virtio-blk, we
noticed that this is not enough: We also need to clear the published
used/avail event indices, or reboot will fail.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
| -rw-r--r-- | hw/s390x/s390-virtio-bus.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/s390x/s390-virtio-bus.c b/hw/s390x/s390-virtio-bus.c index 4a33c6a409..4f69cbbb70 100644 --- a/hw/s390x/s390-virtio-bus.c +++ b/hw/s390x/s390-virtio-bus.c @@ -77,10 +77,18 @@ void s390_virtio_reset_idx(VirtIOS390Device *dev) VIRTIO_VRING_AVAIL_IDX_OFFS; address_space_stw(&address_space_memory, idx_addr, 0, MEMTXATTRS_UNSPECIFIED, NULL); + idx_addr = virtio_queue_get_avail_addr(dev->vdev, i) + + virtio_queue_get_avail_size(dev->vdev, i); + address_space_stw(&address_space_memory, idx_addr, 0, + MEMTXATTRS_UNSPECIFIED, NULL); idx_addr = virtio_queue_get_used_addr(dev->vdev, i) + VIRTIO_VRING_USED_IDX_OFFS; address_space_stw(&address_space_memory, idx_addr, 0, MEMTXATTRS_UNSPECIFIED, NULL); + idx_addr = virtio_queue_get_used_addr(dev->vdev, i) + + virtio_queue_get_used_size(dev->vdev, i); + address_space_stw(&address_space_memory, idx_addr, 0, + MEMTXATTRS_UNSPECIFIED, NULL); } } |