PCIBus *i440fx_init(PCII440FXState **pi440fx_state, int *piix3_devfn, qemu_irq *pic, int ram_size) { DeviceState *dev; PCIBus *b; PCIDevice *d; I440FXState *s; PIIX3State *piix3; dev = qdev_create(NULL, "i440FX-pcihost"); s = FROM_SYSBUS(I440FXState, sysbus_from_qdev(dev)); b = pci_bus_new(&s->busdev.qdev, NULL, 0); s->bus = b; qdev_init_nofail(dev); d = pci_create_simple(b, 0, "i440FX"); *pi440fx_state = DO_UPCAST(PCII440FXState, dev, d); piix3 = DO_UPCAST(PIIX3State, dev, pci_create_simple(b, -1, "PIIX3")); piix3->pic = pic; pci_bus_irqs(b, piix3_set_irq, pci_slot_get_pirq, piix3, 4); (*pi440fx_state)->piix3 = piix3; *piix3_devfn = piix3->dev.devfn; ram_size = ram_size / 8 / 1024 / 1024; if (ram_size > 255) ram_size = 255; (*pi440fx_state)->dev.config[0x57]=ram_size; return b; }