static void virtio_balloon_device_realize(DeviceState *dev, Error **errp) { VirtIODevice *vdev = VIRTIO_DEVICE(dev); VirtIOBalloon *s = VIRTIO_BALLOON(dev); int ret; virtio_init(vdev, "virtio-balloon", VIRTIO_ID_BALLOON, sizeof(struct virtio_balloon_config)); ret = qemu_add_balloon_handler(virtio_balloon_to_target, virtio_balloon_stat, s); if (ret < 0) { error_setg(errp, "Adding balloon handler failed"); virtio_cleanup(vdev); return; } s->ivq = virtio_add_queue(vdev, 128, virtio_balloon_handle_output); s->dvq = virtio_add_queue(vdev, 128, virtio_balloon_handle_output); s->svq = virtio_add_queue(vdev, 128, virtio_balloon_receive_stats); reset_stats(s); register_savevm(dev, "virtio-balloon", -1, 1, virtio_balloon_save, virtio_balloon_load, s); object_property_add(OBJECT(dev), "guest-stats", "guest statistics", balloon_stats_get_all, NULL, NULL, s, NULL); object_property_add(OBJECT(dev), "guest-stats-polling-interval", "int", balloon_stats_get_poll_interval, balloon_stats_set_poll_interval, NULL, s, NULL); }