LXR qemu/hw/virtio/virtio-9p-pci.c

   1/*
   2 * Virtio 9p PCI Bindings
   3 *
   4 * Copyright IBM, Corp. 2010
   5 *
   6 * Authors:
   7 *  Anthony Liguori   <aliguori@us.ibm.com>
   8 *
   9 * This work is licensed under the terms of the GNU GPL, version 2.  See
  10 * the COPYING file in the top-level directory.
  11 *
  12 * Contributions after 2012-01-13 are licensed under the terms of the
  13 * GNU GPL, version 2 or (at your option) any later version.
  14 */
  15
  16#include "qemu/osdep.h"
  17
  18#include "virtio-pci.h"
  19#include "hw/9pfs/virtio-9p.h"
  20#include "hw/qdev-properties.h"
  21#include "qemu/module.h"
  22#include "qom/object.h"
  23
  24/*
  25 * virtio-9p-pci: This extends VirtioPCIProxy.
  26 */
  27
  28#define TYPE_VIRTIO_9P_PCI "virtio-9p-pci-base"
  29typedef struct V9fsPCIState V9fsPCIState;
  30DECLARE_INSTANCE_CHECKER(V9fsPCIState, VIRTIO_9P_PCI,
  31                         TYPE_VIRTIO_9P_PCI)
  32
  33struct V9fsPCIState {
  34    VirtIOPCIProxy parent_obj;
  35    V9fsVirtioState vdev;
  36};
  37
  38static void virtio_9p_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  39{
  40    V9fsPCIState *dev = VIRTIO_9P_PCI(vpci_dev);
  41    DeviceState *vdev = DEVICE(&dev->vdev);
  42
  43    qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
  44}
  45
  46static Property virtio_9p_pci_properties[] = {
  47    DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
  48                    VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
  49    DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
  50    DEFINE_PROP_END_OF_LIST(),
  51};
  52
  53static void virtio_9p_pci_class_init(ObjectClass *klass, void *data)
  54{
  55    DeviceClass *dc = DEVICE_CLASS(klass);
  56    PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
  57    VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
  58
  59    k->realize = virtio_9p_pci_realize;
  60    pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
  61    pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_9P;
  62    pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
  63    pcidev_k->class_id = 0x2;
  64    set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
  65    device_class_set_props(dc, virtio_9p_pci_properties);
  66}
  67
  68static void virtio_9p_pci_instance_init(Object *obj)
  69{
  70    V9fsPCIState *dev = VIRTIO_9P_PCI(obj);
  71
  72    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  73                                TYPE_VIRTIO_9P);
  74}
  75
  76static const VirtioPCIDeviceTypeInfo virtio_9p_pci_info = {
  77    .base_name              = TYPE_VIRTIO_9P_PCI,
  78    .generic_name           = "virtio-9p-pci",
  79    .transitional_name      = "virtio-9p-pci-transitional",
  80    .non_transitional_name  = "virtio-9p-pci-non-transitional",
  81    .instance_size = sizeof(V9fsPCIState),
  82    .instance_init = virtio_9p_pci_instance_init,
  83    .class_init    = virtio_9p_pci_class_init,
  84};
  85
  86static void virtio_9p_pci_register(void)
  87{
  88    virtio_pci_types_register(&virtio_9p_pci_info);
  89}
  90
  91type_init(virtio_9p_pci_register)
  92