VIRTIO_CONFIG_STATUS_DRIVER_OK
vtmmio_set_status(dev, VIRTIO_CONFIG_STATUS_DRIVER_OK);
vtmmio_set_status(dev, VIRTIO_CONFIG_STATUS_DRIVER_OK);
vtpci_set_status(dev, VIRTIO_CONFIG_STATUS_DRIVER_OK);
vtpci_set_status(dev, VIRTIO_CONFIG_STATUS_DRIVER_OK);