text: /*
   * Virtio serial PCI Bindings
   *
   * Copyright IBM, Corp. 2007
   * Copyright (c) 2009 CodeSourcery
   *
   * Authors:
   *  Anthony Liguori   <aliguori@us.ibm.com>
   *  Paul Brook        <paul@codesourcery.com>
   *
   * This work is licensed under the terms of the GNU GPL, version 2.  See
   * the COPYING file in the top-level directory.
   *
   * Contributions after 2012-01-13 are licensed under the terms of the
   * GNU GPL, version 2 or (at your option) any later version.
   */
  
  #include "qemu/osdep.h"
  
  #include "hw/qdev-properties.h"
  #include "hw/virtio/virtio-serial.h"
  #include "qemu/module.h"
  #include "virtio-pci.h"
  #include "qom/object.h"
  
  typedef struct VirtIOSerialPCI VirtIOSerialPCI;
  
  /*
   * virtio-serial-pci: This extends VirtioPCIProxy.
   */
  #define TYPE_VIRTIO_SERIAL_PCI "virtio-serial-pci-base"
  DECLARE_INSTANCE_CHECKER(VirtIOSerialPCI, VIRTIO_SERIAL_PCI,
                           TYPE_VIRTIO_SERIAL_PCI)
  
  struct VirtIOSerialPCI {
      VirtIOPCIProxy parent_obj;
      VirtIOSerial vdev;
  };
  
  static void virtio_serial_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  {
      VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(vpci_dev);
      DeviceState *vdev = DEVICE(&dev->vdev);
      DeviceState *proxy = DEVICE(vpci_dev);
      char *bus_name;
  
      if (vpci_dev->class_code != PCI_CLASS_COMMUNICATION_OTHER &&
          vpci_dev->class_code != PCI_CLASS_DISPLAY_OTHER && /* qemu 0.10 */
          vpci_dev->class_code != PCI_CLASS_OTHERS) {        /* qemu-kvm  */
              vpci_dev->class_code = PCI_CLASS_COMMUNICATION_OTHER;
      }
  
      /* backwards-compatibility with machines that were created with
         DEV_NVECTORS_UNSPECIFIED */
      if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
          vpci_dev->nvectors = dev->vdev.serial.max_virtserial_ports + 1;
      }
  
      /*
       * For command line compatibility, this sets the virtio-serial-device bus
       * name as before.
       */
      if (proxy->id) {
          bus_name = g_strdup_printf("%s.0", proxy->id);
          virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
          g_free(bus_name);
      }
  
      qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
  }
  
  static Property virtio_serial_pci_properties[] = {
      DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
                      VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
      DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
      DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
      DEFINE_PROP_END_OF_LIST(),
  };
  
  static void virtio_serial_pci_class_init(ObjectClass *klass, void *data)
  {
      DeviceClass *dc = DEVICE_CLASS(klass);
      VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
      PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
      k->realize = virtio_serial_pci_realize;
      set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
      device_class_set_props(dc, virtio_serial_pci_properties);
      pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
      pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_CONSOLE;
      pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
      pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
  }
  
  static void virtio_serial_pci_instance_init(Object *obj)
  {
      VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(obj);
  
      virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
                                  TYPE_VIRTIO_SERIAL);
  }
  
  static const VirtioPCIDeviceTypeInfo virtio_serial_pci_info = {
      .base_name             = TYPE_VIRTIO_SERIAL_PCI,
      .generic_name          = "virtio-serial-pci",
      .transitional_name     = "virtio-serial-pci-transitional",
      .non_transitional_name = "virtio-serial-pci-non-transitional",
      .instance_size = sizeof(VirtIOSerialPCI),
      .instance_init = virtio_serial_pci_instance_init,
      .class_init    = virtio_serial_pci_class_init,
  };
  
  static void virtio_serial_pci_register(void)
  {
      virtio_pci_types_register(&virtio_serial_pci_info);
  }
  
  type_init(virtio_serial_pci_register)
  