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/virtio/vhost-vsock.h"
  18#include "qemu/module.h"
  19
  20typedef struct VHostVSockPCI VHostVSockPCI;
  21
  22/*
  23 * vhost-vsock-pci: This extends VirtioPCIProxy.
  24 */
  25#define TYPE_VHOST_VSOCK_PCI "vhost-vsock-pci-base"
  26#define VHOST_VSOCK_PCI(obj) \
  27        OBJECT_CHECK(VHostVSockPCI, (obj), TYPE_VHOST_VSOCK_PCI)
  28
  29struct VHostVSockPCI {
  30    VirtIOPCIProxy parent_obj;
  31    VHostVSock vdev;
  32};
  33
  34/* vhost-vsock-pci */
  35
  36static Property vhost_vsock_pci_properties[] = {
  37    DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3),
  38    DEFINE_PROP_END_OF_LIST(),
  39};
  40
  41static void vhost_vsock_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  42{
  43    VHostVSockPCI *dev = VHOST_VSOCK_PCI(vpci_dev);
  44    DeviceState *vdev = DEVICE(&dev->vdev);
  45
  46    qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
  47    object_property_set_bool(OBJECT(vdev), true, "realized", errp);
  48}
  49
  50static void vhost_vsock_pci_class_init(ObjectClass *klass, void *data)
  51{
  52    DeviceClass *dc = DEVICE_CLASS(klass);
  53    VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
  54    PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
  55    k->realize = vhost_vsock_pci_realize;
  56    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
  57    dc->props = vhost_vsock_pci_properties;
  58    pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
  59    pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_VSOCK;
  60    pcidev_k->revision = 0x00;
  61    pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
  62}
  63
  64static void vhost_vsock_pci_instance_init(Object *obj)
  65{
  66    VHostVSockPCI *dev = VHOST_VSOCK_PCI(obj);
  67
  68    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  69                                TYPE_VHOST_VSOCK);
  70}
  71
  72static const VirtioPCIDeviceTypeInfo vhost_vsock_pci_info = {
  73    .base_name             = TYPE_VHOST_VSOCK_PCI,
  74    .generic_name          = "vhost-vsock-pci",
  75    .transitional_name     = "vhost-vsock-pci-transitional",
  76    .non_transitional_name = "vhost-vsock-pci-non-transitional",
  77    .instance_size = sizeof(VHostVSockPCI),
  78    .instance_init = vhost_vsock_pci_instance_init,
  79    .class_init    = vhost_vsock_pci_class_init,
  80};
  81
  82static void virtio_pci_vhost_register(void)
  83{
  84    virtio_pci_types_register(&vhost_vsock_pci_info);
  85}
  86
  87type_init(virtio_pci_vhost_register)
  88