vdpa: fix VHOST_BACKEND_F_IOTLB_ASID flag check

VHOST_BACKEND_F_IOTLB_ASID is the feature bit, not the bitmask. Since the device under test also provided VHOST_BACKEND_F_IOTLB_MSG_V2 and VHOST_BACKEND_F_IOTLB_BATCH, this went unnoticed. Fixes: c1a1008 ("vdpa: always start CVQ in SVQ mode if possible") Signed-off-by: Eugenio Pérez <[email protected]> Reviewed-by: Michael S. Tsirkin <[email protected]> Acked-by: Jason Wang <[email protected]> Signed-off-by: Jason Wang <[email protected]>
xzpeter · Feb 17, 2023 · 525ae11 · 525ae11
1 parent 148fbf0
commit 525ae11
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
@@ -384,7 +384,7 @@ static int vhost_vdpa_net_cvq_start(NetClientState *nc)
             g_strerror(errno), errno);
         return -1;
     }
-    if (!(backend_features & VHOST_BACKEND_F_IOTLB_ASID) ||
+    if (!(backend_features & BIT_ULL(VHOST_BACKEND_F_IOTLB_ASID)) ||
         !vhost_vdpa_net_valid_svq_features(v->dev->features, NULL)) {
         return 0;
     }