Add vhost-backend and VhostBackendType

Use vhost_set_backend_type to initialise a proper vhost_ops structure.
In vhost_net_init and vhost_net_start_one call conditionally TAP related
initialisation depending on the vhost backend type.

Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com>
Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/tap.c b/net/tap.c
index 5789ff8e0c..a40f7f023f 100644
--- a/net/tap.c
+++ b/net/tap.c
@@ -627,6 +627,7 @@ static int net_init_tap_one(const NetdevTapOptions *tap, NetClientState *peer,
         vhostfdname || (tap->has_vhostforce && tap->vhostforce)) {
         VhostNetOptions options;
 
+        options.backend_type = VHOST_BACKEND_TYPE_KERNEL;
         options.net_backend = &s->nc;
         options.force = tap->has_vhostforce && tap->vhostforce;