@@ -766,6 +766,25 @@ static uint64_t virtio_net_bad_features(VirtIODevice *vdev)
return features;
}
+static void virtio_net_force_modern(VirtIODevice *vdev)
+{
+ VirtIONet *n = VIRTIO_NET(vdev);
+ int i;
+
+ /*
+ * Why do we have to loop over all queues? Are not features a
+ * per-device thing?
+ */
+ for (i = 0; i < n->max_queues; i++) {
+ NetClientState *nc = qemu_get_subqueue(n->nic, i);
+
+ if (!get_vhost_net(nc->peer)) {
+ continue;
+ }
+ vhost_dev_force_modern(&get_vhost_net(nc->peer)->dev);
+ }
+}
+
static void virtio_net_apply_guest_offloads(VirtIONet *n)
{
qemu_set_offload(qemu_get_queue(n->nic)->peer,
@@ -3668,6 +3687,7 @@ static void virtio_net_class_init(ObjectClass *klass, void *data)
vdc->get_features = virtio_net_get_features;
vdc->set_features = virtio_net_set_features;
vdc->bad_features = virtio_net_bad_features;
+ vdc->force_modern = virtio_net_force_modern;
vdc->reset = virtio_net_reset;
vdc->set_status = virtio_net_set_status;
vdc->guest_notifier_mask = virtio_net_guest_notifier_mask;
Signed-off-by: Halil Pasic <pasic@linux.ibm.com> --- Inspired by virtio_net_set_features() which I don't quite understand. Why do we have to do vhost_net_ack_features() for each possible queue? --- hw/net/virtio-net.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)