int PPC_io_memory;
s = qemu_mallocz(sizeof(PREPPCIState));
- s->bus = pci_register_bus(prep_set_irq, prep_map_irq, pic, 0, 4);
+ s->bus = pci_register_bus(NULL, "pci",
+ prep_set_irq, prep_map_irq, pic, 0, 4);
register_ioport_write(0xcf8, 4, 4, pci_prep_addr_writel, s);
register_ioport_read(0xcf8, 4, 4, pci_prep_addr_readl, s);