void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi, ISADevice **rtc_state, ISADevice **floppy, bool no_vmport) { int i; DriveInfo *fd[MAX_FD]; DeviceState *hpet = NULL; int pit_isa_irq = 0; qemu_irq pit_alt_irq = NULL; qemu_irq rtc_irq = NULL; qemu_irq *a20_line; ISADevice *i8042, *port92, *vmmouse, *pit; qemu_irq *cpu_exit_irq; register_ioport_write(0x80, 1, 1, ioport80_write, NULL); register_ioport_write(0xf0, 1, 1, ioportF0_write, NULL); /* * Check if an HPET shall be created. * * Without KVM_CAP_PIT_STATE2, we cannot switch off the in-kernel PIT * when the HPET wants to take over. Thus we have to disable the latter. */ if (!no_hpet && (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) { hpet = sysbus_try_create_simple("hpet", HPET_BASE, NULL); if (hpet) { for (i = 0; i < GSI_NUM_PINS; i++) { sysbus_connect_irq(sysbus_from_qdev(hpet), i, gsi[i]); } pit_isa_irq = -1; pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT); rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT); } } *rtc_state = rtc_init(isa_bus, 2000, rtc_irq); qemu_register_boot_set(pc_boot_set, *rtc_state); if (kvm_irqchip_in_kernel()) { pit = kvm_pit_init(isa_bus, 0x40); } else { pit = pit_init(isa_bus, 0x40, pit_isa_irq, pit_alt_irq); } if (hpet) { /* connect PIT to output control line of the HPET */ qdev_connect_gpio_out(hpet, 0, qdev_get_gpio_in(&pit->qdev, 0)); } pcspk_init(isa_bus, pit); for(i = 0; i < MAX_SERIAL_PORTS; i++) { if (serial_hds[i]) { serial_isa_init(isa_bus, i, serial_hds[i]); } } for(i = 0; i < MAX_PARALLEL_PORTS; i++) { if (parallel_hds[i]) { parallel_init(isa_bus, i, parallel_hds[i]); } } a20_line = qemu_allocate_irqs(handle_a20_line_change, first_cpu, 2); i8042 = isa_create_simple(isa_bus, "i8042"); i8042_setup_a20_line(i8042, &a20_line[0]); if (!no_vmport) { vmport_init(isa_bus); vmmouse = isa_try_create(isa_bus, "vmmouse"); } else { vmmouse = NULL; } if (vmmouse) { qdev_prop_set_ptr(&vmmouse->qdev, "ps2_mouse", i8042); qdev_init_nofail(&vmmouse->qdev); } port92 = isa_create_simple(isa_bus, "port92"); port92_init(port92, &a20_line[1]); cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1); DMA_init(0, cpu_exit_irq); for(i = 0; i < MAX_FD; i++) { fd[i] = drive_get(IF_FLOPPY, 0, i); } *floppy = fdctrl_init_isa(isa_bus, fd); }