Symbol: VIRTIO_CONFIG1_DRIVER_FEATURE_SELECT
sys/dev/pci/virtio_pci.c
849
bus_space_write_4(iot, ioh, VIRTIO_CONFIG1_DRIVER_FEATURE_SELECT, 0);
sys/dev/pci/virtio_pci.c
852
bus_space_write_4(iot, ioh, VIRTIO_CONFIG1_DRIVER_FEATURE_SELECT, 1);