LXR qemu/hw/s390x/virtio-ccw-rng.c

   1/*
   2 * virtio ccw random number generator implementation
   3 *
   4 * Copyright 2012, 2015 IBM Corp.
   5 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
   6 *
   7 * This work is licensed under the terms of the GNU GPL, version 2 or (at
   8 * your option) any later version. See the COPYING file in the top-level
   9 * directory.
  10 */
  11
  12#include "qemu/osdep.h"
  13#include "hw/qdev-properties.h"
  14#include "hw/virtio/virtio.h"
  15#include "qapi/error.h"
  16#include "qemu/module.h"
  17#include "virtio-ccw.h"
  18
  19static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp)
  20{
  21    VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev);
  22    DeviceState *vdev = DEVICE(&dev->vdev);
  23
  24    if (!qdev_realize(vdev, BUS(&ccw_dev->bus), errp)) {
  25        return;
  26    }
  27}
  28
  29static void virtio_ccw_rng_instance_init(Object *obj)
  30{
  31    VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj);
  32
  33    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  34                                TYPE_VIRTIO_RNG);
  35}
  36
  37static Property virtio_ccw_rng_properties[] = {
  38    DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
  39                    VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
  40    DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
  41                       VIRTIO_CCW_MAX_REV),
  42    DEFINE_PROP_END_OF_LIST(),
  43};
  44
  45static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data)
  46{
  47    DeviceClass *dc = DEVICE_CLASS(klass);
  48    VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
  49
  50    k->realize = virtio_ccw_rng_realize;
  51    device_class_set_props(dc, virtio_ccw_rng_properties);
  52    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
  53}
  54
  55static const TypeInfo virtio_ccw_rng = {
  56    .name          = TYPE_VIRTIO_RNG_CCW,
  57    .parent        = TYPE_VIRTIO_CCW_DEVICE,
  58    .instance_size = sizeof(VirtIORNGCcw),
  59    .instance_init = virtio_ccw_rng_instance_init,
  60    .class_init    = virtio_ccw_rng_class_init,
  61};
  62
  63static void virtio_ccw_rng_register(void)
  64{
  65    type_register_static(&virtio_ccw_rng);
  66}
  67
  68type_init(virtio_ccw_rng_register)
  69