tap: add API to retrieve vhost net header

will be used by virtio-net for vhost net support

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/net/tap.c b/net/tap.c
index 740665f5b6..303d69f5ab 100644
--- a/net/tap.c
+++ b/net/tap.c
@@ -488,3 +488,10 @@ int net_init_tap(QemuOpts *opts, Monitor *mon, const char *name, VLANState *vlan
 
     return 0;
 }
+
+VHostNetState *tap_get_vhost_net(VLANClientState *nc)
+{
+    TAPState *s = DO_UPCAST(TAPState, nc, nc);
+    assert(nc->info->type == NET_CLIENT_TYPE_TAP);
+    return s->vhost_net;
+}