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
  19typedef struct VirtIORngPCI VirtIORngPCI;
  20
  21/*
  22 * virtio-rng-pci: This extends VirtioPCIProxy.
  23 */
  24#define TYPE_VIRTIO_RNG_PCI "virtio-rng-pci-base"
  25#define VIRTIO_RNG_PCI(obj) \
  26        OBJECT_CHECK(VirtIORngPCI, (obj), TYPE_VIRTIO_RNG_PCI)
  27
  28struct VirtIORngPCI {
  29    VirtIOPCIProxy parent_obj;
  30    VirtIORNG vdev;
  31};
  32
  33static void virtio_rng_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  34{
  35    VirtIORngPCI *vrng = VIRTIO_RNG_PCI(vpci_dev);
  36    DeviceState *vdev = DEVICE(&vrng->vdev);
  37    Error *err = NULL;
  38
  39    qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
  40    object_property_set_bool(OBJECT(vdev), true, "realized", &err);
  41    if (err) {
  42        error_propagate(errp, err);
  43        return;
  44    }
  45
  46    object_property_set_link(OBJECT(vrng),
  47                             OBJECT(vrng->vdev.conf.rng), "rng",
  48                             NULL);
  49}
  50
  51static void virtio_rng_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
  57    k->realize = virtio_rng_pci_realize;
  58    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
  59
  60    pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
  61    pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_RNG;
  62    pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
  63    pcidev_k->class_id = PCI_CLASS_OTHERS;
  64}
  65
  66static void virtio_rng_initfn(Object *obj)
  67{
  68    VirtIORngPCI *dev = VIRTIO_RNG_PCI(obj);
  69
  70    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  71                                TYPE_VIRTIO_RNG);
  72}
  73
  74static const VirtioPCIDeviceTypeInfo virtio_rng_pci_info = {
  75    .base_name             = TYPE_VIRTIO_RNG_PCI,
  76    .generic_name          = "virtio-rng-pci",
  77    .transitional_name     = "virtio-rng-pci-transitional",
  78    .non_transitional_name = "virtio-rng-pci-non-transitional",
  79    .instance_size = sizeof(VirtIORngPCI),
  80    .instance_init = virtio_rng_initfn,
  81    .class_init    = virtio_rng_pci_class_init,
  82};
  83
  84static void virtio_rng_pci_register(void)
  85{
  86    virtio_pci_types_register(&virtio_rng_pci_info);
  87}
  88
  89type_init(virtio_rng_pci_register)
  90