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charset="utf-8" svq_switching indicates the case where SVQ mode change is on going. Positive (1) means switching from the normal passthrough mode to SVQ mode, and negative (-1) meaning switch SVQ back to the passthrough; zero (0) indicates that there's no SVQ mode switch taking place. Signed-off-by: Si-Wei Liu --- net/vhost-vdpa.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 7b8f047..04718b2 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -320,6 +320,7 @@ static void vhost_vdpa_net_log_global_enable(VhostVDPAS= tate *s, bool enable) data_queue_pairs =3D n->multiqueue ? n->max_queue_pairs : 1; cvq =3D virtio_vdev_has_feature(vdev, VIRTIO_NET_F_CTRL_VQ) ? n->max_ncs - n->max_queue_pairs : 0; + v->shared->svq_switching =3D enable ? 1 : -1; /* * TODO: vhost_net_stop does suspend, get_base and reset. We can be sm= arter * in the future and resume the device if read-only operations between @@ -332,6 +333,7 @@ static void vhost_vdpa_net_log_global_enable(VhostVDPAS= tate *s, bool enable) if (unlikely(r < 0)) { error_report("unable to start vhost net: %s(%d)", g_strerror(-r), = -r); } + v->shared->svq_switching =3D 0; } =20 static void vdpa_net_migration_state_notifier(Notifier *notifier, void *da= ta) --=20 1.8.3.1