LXR qemu/hw/virtio/virtio-rng-pci.c

   1/*
   2 * Virtio rng PCI Bindings
   3 *
   4 * Copyright 2012 Red Hat, Inc.
   5 * Copyright 2012 Amit Shah <amit.shah@redhat.com>
   6 *
   7 * This work is licensed under the terms of the GNU GPL, version 2 or
   8 * (at your option) any later version.  See the COPYING file in the
   9 * top-level directory.
  10 */
  11
  12#include "qemu/osdep.h"
  13
  14#include "virtio-pci.h"
  15#include "hw/virtio/virtio-rng.h"
  16#include "qapi/error.h"
  17#include "qemu/module.h"
  18#include "qom/object.h"
  19
  20typedef struct VirtIORngPCI VirtIORngPCI;
  21
  22/*
  23 * virtio-rng-pci: This extends VirtioPCIProxy.
  24 */
  25#define TYPE_VIRTIO_RNG_PCI "virtio-rng-pci-base"
  26DECLARE_INSTANCE_CHECKER(VirtIORngPCI, VIRTIO_RNG_PCI,
  27                         TYPE_VIRTIO_RNG_PCI)
  28
  29struct VirtIORngPCI {
  30    VirtIOPCIProxy parent_obj;
  31    VirtIORNG vdev;
  32};
  33
  34static void virtio_rng_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  35{
  36    VirtIORngPCI *vrng = VIRTIO_RNG_PCI(vpci_dev);
  37    DeviceState *vdev = DEVICE(&vrng->vdev);
  38
  39    if (!qdev_realize(vdev, BUS(&vpci_dev->bus), errp)) {
  40        return;
  41    }
  42}
  43
  44static void virtio_rng_pci_class_init(ObjectClass *klass, void *data)
  45{
  46    DeviceClass *dc = DEVICE_CLASS(klass);
  47    VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
  48    PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
  49
  50    k->realize = virtio_rng_pci_realize;
  51    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
  52
  53    pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
  54    pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_RNG;
  55    pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
  56    pcidev_k->class_id = PCI_CLASS_OTHERS;
  57}
  58
  59static void virtio_rng_initfn(Object *obj)
  60{
  61    VirtIORngPCI *dev = VIRTIO_RNG_PCI(obj);
  62
  63    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  64                                TYPE_VIRTIO_RNG);
  65}
  66
  67static const VirtioPCIDeviceTypeInfo virtio_rng_pci_info = {
  68    .base_name             = TYPE_VIRTIO_RNG_PCI,
  69    .generic_name          = "virtio-rng-pci",
  70    .transitional_name     = "virtio-rng-pci-transitional",
  71    .non_transitional_name = "virtio-rng-pci-non-transitional",
  72    .instance_size = sizeof(VirtIORngPCI),
  73    .instance_init = virtio_rng_initfn,
  74    .class_init    = virtio_rng_pci_class_init,
  75};
  76
  77static void virtio_rng_pci_register(void)
  78{
  79    virtio_pci_types_register(&virtio_rng_pci_info);
  80}
  81
  82type_init(virtio_rng_pci_register)
  83