LXR qemu/hw/virtio/vhost-vsock-pci.c

   1/*
   2 * Vhost vsock PCI Bindings
   3 *
   4 * Copyright 2015 Red Hat, Inc.
   5 *
   6 * Authors:
   7 *  Stefan Hajnoczi <stefanha@redhat.com>
   8 *
   9 * This work is licensed under the terms of the GNU GPL, version 2 or
  10 * (at your option) any later version.  See the COPYING file in the
  11 * top-level directory.
  12 */
  13
  14#include "qemu/osdep.h"
  15
  16#include "virtio-pci.h"
  17#include "hw/qdev-properties.h"
  18#include "hw/virtio/vhost-vsock.h"
  19#include "qemu/module.h"
  20
  21typedef struct VHostVSockPCI VHostVSockPCI;
  22
  23/*
  24 * vhost-vsock-pci: This extends VirtioPCIProxy.
  25 */
  26#define TYPE_VHOST_VSOCK_PCI "vhost-vsock-pci-base"
  27#define VHOST_VSOCK_PCI(obj) \
  28        OBJECT_CHECK(VHostVSockPCI, (obj), TYPE_VHOST_VSOCK_PCI)
  29
  30struct VHostVSockPCI {
  31    VirtIOPCIProxy parent_obj;
  32    VHostVSock vdev;
  33};
  34
  35/* vhost-vsock-pci */
  36
  37static Property vhost_vsock_pci_properties[] = {
  38    DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3),
  39    DEFINE_PROP_END_OF_LIST(),
  40};
  41
  42static void vhost_vsock_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  43{
  44    VHostVSockPCI *dev = VHOST_VSOCK_PCI(vpci_dev);
  45    DeviceState *vdev = DEVICE(&dev->vdev);
  46
  47    qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
  48    object_property_set_bool(OBJECT(vdev), true, "realized", errp);
  49}
  50
  51static void vhost_vsock_pci_class_init(ObjectClass *klass, void *data)
  52{
  53    DeviceClass *dc = DEVICE_CLASS(klass);
  54    VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
  55    PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
  56    k->realize = vhost_vsock_pci_realize;
  57    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
  58    dc->props = vhost_vsock_pci_properties;
  59    pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
  60    pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_VSOCK;
  61    pcidev_k->revision = 0x00;
  62    pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
  63}
  64
  65static void vhost_vsock_pci_instance_init(Object *obj)
  66{
  67    VHostVSockPCI *dev = VHOST_VSOCK_PCI(obj);
  68
  69    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  70                                TYPE_VHOST_VSOCK);
  71}
  72
  73static const VirtioPCIDeviceTypeInfo vhost_vsock_pci_info = {
  74    .base_name             = TYPE_VHOST_VSOCK_PCI,
  75    .generic_name          = "vhost-vsock-pci",
  76    .transitional_name     = "vhost-vsock-pci-transitional",
  77    .non_transitional_name = "vhost-vsock-pci-non-transitional",
  78    .instance_size = sizeof(VHostVSockPCI),
  79    .instance_init = vhost_vsock_pci_instance_init,
  80    .class_init    = vhost_vsock_pci_class_init,
  81};
  82
  83static void virtio_pci_vhost_register(void)
  84{
  85    virtio_pci_types_register(&vhost_vsock_pci_info);
  86}
  87
  88type_init(virtio_pci_vhost_register)
  89