| Message ID | 20240201180924.487579-2-eperezma@redhat.com |
|---|---|
| State | New |
| Headers | show |
| Series | Move memory listener register to vhost_vdpa_init | expand |
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 64825136a3..cc589dd148 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -333,7 +333,9 @@ static void vhost_vdpa_net_data_start_first(VhostVDPAState *s) migration_add_notifier(&s->migration_state, vdpa_net_migration_state_notifier); - if (v->shadow_vqs_enabled) { + + /* iova_tree may be initialized by vhost_vdpa_net_load_setup */ + if (v->shadow_vqs_enabled && !v->shared->iova_tree) { v->shared->iova_tree = vhost_iova_tree_new(v->shared->iova_range.first, v->shared->iova_range.last); }
To map the guest memory while it is migrating we need to create the iova_tree, as long as the destination uses x-svq=on. Checking to not override it. The function vhost_vdpa_net_client_stop clear it if the device is stopped. If the guest starts the device again, the iova tree is recreated by vhost_vdpa_net_data_start_first or vhost_vdpa_net_cvq_start if needed, so old behavior is kept. Signed-off-by: Eugenio Pérez <eperezma@redhat.com> --- net/vhost-vdpa.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)