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
  21/*
  22 * virtio-9p-pci: This extends VirtioPCIProxy.
  23 */
  24
  25#define TYPE_VIRTIO_9P_PCI "virtio-9p-pci-base"
  26#define VIRTIO_9P_PCI(obj) \
  27        OBJECT_CHECK(V9fsPCIState, (obj), TYPE_VIRTIO_9P_PCI)
  28
  29typedef struct V9fsPCIState {
  30    VirtIOPCIProxy parent_obj;
  31    V9fsVirtioState vdev;
  32} V9fsPCIState;
  33
  34static void virtio_9p_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  35{
  36    V9fsPCIState *dev = VIRTIO_9P_PCI(vpci_dev);
  37    DeviceState *vdev = DEVICE(&dev->vdev);
  38
  39    qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
  40    object_property_set_bool(OBJECT(vdev), true, "realized", errp);
  41}
  42
  43static Property virtio_9p_pci_properties[] = {
  44    DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
  45                    VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
  46    DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
  47    DEFINE_PROP_END_OF_LIST(),
  48};
  49
  50static void virtio_9p_pci_class_init(ObjectClass *klass, void *data)
  51{
  52    DeviceClass *dc = DEVICE_CLASS(klass);
  53    PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
  54    VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
  55
  56    k->realize = virtio_9p_pci_realize;
  57    pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
  58    pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_9P;
  59    pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
  60    pcidev_k->class_id = 0x2;
  61    set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
  62    dc->props = virtio_9p_pci_properties;
  63}
  64
  65static void virtio_9p_pci_instance_init(Object *obj)
  66{
  67    V9fsPCIState *dev = VIRTIO_9P_PCI(obj);
  68
  69    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  70                                TYPE_VIRTIO_9P);
  71}
  72
  73static const VirtioPCIDeviceTypeInfo virtio_9p_pci_info = {
  74    .base_name              = TYPE_VIRTIO_9P_PCI,
  75    .generic_name           = "virtio-9p-pci",
  76    .transitional_name      = "virtio-9p-pci-transitional",
  77    .non_transitional_name  = "virtio-9p-pci-non-transitional",
  78    .instance_size = sizeof(V9fsPCIState),
  79    .instance_init = virtio_9p_pci_instance_init,
  80    .class_init    = virtio_9p_pci_class_init,
  81};
  82
  83static void virtio_9p_pci_register(void)
  84{
  85    virtio_pci_types_register(&virtio_9p_pci_info);
  86}
  87
  88type_init(virtio_9p_pci_register)
  89