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authorJonah Palmer <jonah.palmer@oracle.com>2022-04-01 09:23:19 -0400
committerMichael S. Tsirkin <mst@redhat.com>2022-05-16 04:38:40 -0400
commitc255488d67dc0d52052a12e0242bf00dcbe5223f (patch)
tree112aff6a9f3ed155a0e4dbda2ce2eff91a915bc4 /hw/net
parent3857cd5c7ffd0bcc49bd2b66654af0909c847d02 (diff)
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virtio: add vhost support for virtio devices
This patch adds a get_vhost() callback function for VirtIODevices that returns the device's corresponding vhost_dev structure, if the vhost device is running. This patch also adds a vhost_started flag for VirtIODevices. Previously, a VirtIODevice wouldn't be able to tell if its corresponding vhost device was active or not. Signed-off-by: Jonah Palmer <jonah.palmer@oracle.com> Message-Id: <1648819405-25696-3-git-send-email-jonah.palmer@oracle.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/net')
-rw-r--r--hw/net/virtio-net.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index bd0224c..a788f1c 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -3620,6 +3620,14 @@ static bool dev_unplug_pending(void *opaque)
return vdc->primary_unplug_pending(dev);
}
+static struct vhost_dev *virtio_net_get_vhost(VirtIODevice *vdev)
+{
+ VirtIONet *n = VIRTIO_NET(vdev);
+ NetClientState *nc = qemu_get_queue(n->nic);
+ struct vhost_net *net = get_vhost_net(nc->peer);
+ return &net->dev;
+}
+
static const VMStateDescription vmstate_virtio_net = {
.name = "virtio-net",
.minimum_version_id = VIRTIO_NET_VM_VERSION,
@@ -3722,6 +3730,7 @@ static void virtio_net_class_init(ObjectClass *klass, void *data)
vdc->post_load = virtio_net_post_load_virtio;
vdc->vmsd = &vmstate_virtio_net_device;
vdc->primary_unplug_pending = primary_unplug_pending;
+ vdc->get_vhost = virtio_net_get_vhost;
}
static const TypeInfo virtio_net_info = {