[PATCH 09/13] vdpa net: block migration if the device has CVQ

[Eugenio Pérez]

Devices with CVQ needs to migrate state beyond vq state.  Leaving this
to future series.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
---
 net/vhost-vdpa.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index bca13f97fd..309861e56c 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -955,11 +955,17 @@ int net_init_vhost_vdpa(const Netdev *netdev, const char 
*name,
     }
 
     if (has_cvq) {
+        VhostVDPAState *s;
+
         nc = net_vhost_vdpa_init(peer, TYPE_VHOST_VDPA, name,
                                  vdpa_device_fd, i, 1, false,
                                  opts->x_svq, iova_range);
         if (!nc)
             goto err;
+
+        s = DO_UPCAST(VhostVDPAState, nc, nc);
+        error_setg(&s->vhost_vdpa.dev->migration_blocker,
+                   "net vdpa cannot migrate with MQ feature");
     }
 
     return 0;
-- 
2.31.1