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
  18typedef struct VirtIORngPCI VirtIORngPCI;
  19
  20/*
  21 * virtio-rng-pci: This extends VirtioPCIProxy.
  22 */
  23#define TYPE_VIRTIO_RNG_PCI "virtio-rng-pci-base"
  24#define VIRTIO_RNG_PCI(obj) \
  25        OBJECT_CHECK(VirtIORngPCI, (obj), TYPE_VIRTIO_RNG_PCI)
  26
  27struct VirtIORngPCI {
  28    VirtIOPCIProxy parent_obj;
  29    VirtIORNG vdev;
  30};
  31
  32static void virtio_rng_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  33{
  34    VirtIORngPCI *vrng = VIRTIO_RNG_PCI(vpci_dev);
  35    DeviceState *vdev = DEVICE(&vrng->vdev);
  36    Error *err = NULL;
  37
  38    qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
  39    object_property_set_bool(OBJECT(vdev), true, "realized", &err);
  40    if (err) {
  41        error_propagate(errp, err);
  42        return;
  43    }
  44
  45    object_property_set_link(OBJECT(vrng),
  46                             OBJECT(vrng->vdev.conf.rng), "rng",
  47                             NULL);
  48}
  49
  50static void virtio_rng_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
  56    k->realize = virtio_rng_pci_realize;
  57    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
  58
  59    pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
  60    pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_RNG;
  61    pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
  62    pcidev_k->class_id = PCI_CLASS_OTHERS;
  63}
  64
  65static void virtio_rng_initfn(Object *obj)
  66{
  67    VirtIORngPCI *dev = VIRTIO_RNG_PCI(obj);
  68
  69    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  70                                TYPE_VIRTIO_RNG);
  71}
  72
  73static const VirtioPCIDeviceTypeInfo virtio_rng_pci_info = {
  74    .base_name             = TYPE_VIRTIO_RNG_PCI,
  75    .generic_name          = "virtio-rng-pci",
  76    .transitional_name     = "virtio-rng-pci-transitional",
  77    .non_transitional_name = "virtio-rng-pci-non-transitional",
  78    .instance_size = sizeof(VirtIORngPCI),
  79    .instance_init = virtio_rng_initfn,
  80    .class_init    = virtio_rng_pci_class_init,
  81};
  82
  83static void virtio_rng_pci_register(void)
  84{
  85    virtio_pci_types_register(&virtio_rng_pci_info);
  86}
  87
  88type_init(virtio_rng_pci_register)
  89