DPRINTF("host_init\n");
- b = pci_register_bus(DEVICE(dev), NULL,
- s390_pci_set_irq, s390_pci_map_irq, NULL,
- get_system_memory(), get_system_io(), 0, 64,
- TYPE_PCI_BUS);
+ b = pci_register_root_bus(DEVICE(dev), NULL,
+ s390_pci_set_irq, s390_pci_map_irq, NULL,
+ get_system_memory(), get_system_io(), 0, 64,
+ TYPE_PCI_BUS);
pci_setup_iommu(b, s390_pci_dma_iommu, s);
bus = BUS(b);