cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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virtio-ccw-rng.c (1995B)

      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)