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
  23/*
  24 * virtio-9p-pci: This extends VirtioPCIProxy.
  25 */
  26
  27#define TYPE_VIRTIO_9P_PCI "virtio-9p-pci-base"
  28#define VIRTIO_9P_PCI(obj) \
  29        OBJECT_CHECK(V9fsPCIState, (obj), TYPE_VIRTIO_9P_PCI)
  30
  31typedef struct V9fsPCIState {
  32    VirtIOPCIProxy parent_obj;
  33    V9fsVirtioState vdev;
  34} V9fsPCIState;
  35
  36static void virtio_9p_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  37{
  38    V9fsPCIState *dev = VIRTIO_9P_PCI(vpci_dev);
  39    DeviceState *vdev = DEVICE(&dev->vdev);
  40
  41    qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
  42    object_property_set_bool(OBJECT(vdev), true, "realized", errp);
  43}
  44
  45static Property virtio_9p_pci_properties[] = {
  46    DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
  47                    VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
  48    DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
  49    DEFINE_PROP_END_OF_LIST(),
  50};
  51
  52static void virtio_9p_pci_class_init(ObjectClass *klass, void *data)
  53{
  54    DeviceClass *dc = DEVICE_CLASS(klass);
  55    PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
  56    VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
  57
  58    k->realize = virtio_9p_pci_realize;
  59    pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
  60    pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_9P;
  61    pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
  62    pcidev_k->class_id = 0x2;
  63    set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
  64    dc->props = virtio_9p_pci_properties;
  65}
  66
  67static void virtio_9p_pci_instance_init(Object *obj)
  68{
  69    V9fsPCIState *dev = VIRTIO_9P_PCI(obj);
  70
  71    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  72                                TYPE_VIRTIO_9P);
  73}
  74
  75static const VirtioPCIDeviceTypeInfo virtio_9p_pci_info = {
  76    .base_name              = TYPE_VIRTIO_9P_PCI,
  77    .generic_name           = "virtio-9p-pci",
  78    .transitional_name      = "virtio-9p-pci-transitional",
  79    .non_transitional_name  = "virtio-9p-pci-non-transitional",
  80    .instance_size = sizeof(V9fsPCIState),
  81    .instance_init = virtio_9p_pci_instance_init,
  82    .class_init    = virtio_9p_pci_class_init,
  83};
  84
  85static void virtio_9p_pci_register(void)
  86{
  87    virtio_pci_types_register(&virtio_9p_pci_info);
  88}
  89
  90type_init(virtio_9p_pci_register)
  91