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

   1/*
   2 * Virtio crypto device
   3 *
   4 * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
   5 *
   6 * Authors:
   7 *    Gonglei <arei.gonglei@huawei.com>
   8 *
   9 * This work is licensed under the terms of the GNU GPL, version 2 or
  10 * (at your option) any later version.  See the COPYING file in the
  11 * top-level directory.
  12 *
  13 */
  14#include "qemu/osdep.h"
  15#include "hw/pci/pci.h"
  16#include "hw/virtio/virtio.h"
  17#include "hw/virtio/virtio-bus.h"
  18#include "hw/virtio/virtio-pci.h"
  19#include "hw/virtio/virtio-crypto.h"
  20#include "qapi/error.h"
  21
  22static Property virtio_crypto_pci_properties[] = {
  23    DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
  24                    VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
  25    DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
  26    DEFINE_PROP_END_OF_LIST(),
  27};
  28
  29static void virtio_crypto_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  30{
  31    VirtIOCryptoPCI *vcrypto = VIRTIO_CRYPTO_PCI(vpci_dev);
  32    DeviceState *vdev = DEVICE(&vcrypto->vdev);
  33
  34    if (vcrypto->vdev.conf.cryptodev == NULL) {
  35        error_setg(errp, "'cryptodev' parameter expects a valid object");
  36        return;
  37    }
  38
  39    qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
  40    virtio_pci_force_virtio_1(vpci_dev);
  41    object_property_set_bool(OBJECT(vdev), true, "realized", errp);
  42    object_property_set_link(OBJECT(vcrypto),
  43                 OBJECT(vcrypto->vdev.conf.cryptodev), "cryptodev",
  44                 NULL);
  45}
  46
  47static void virtio_crypto_pci_class_init(ObjectClass *klass, void *data)
  48{
  49    DeviceClass *dc = DEVICE_CLASS(klass);
  50    VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
  51    PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
  52
  53    k->realize = virtio_crypto_pci_realize;
  54    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
  55    dc->props = virtio_crypto_pci_properties;
  56    pcidev_k->class_id = PCI_CLASS_OTHERS;
  57}
  58
  59static void virtio_crypto_initfn(Object *obj)
  60{
  61    VirtIOCryptoPCI *dev = VIRTIO_CRYPTO_PCI(obj);
  62
  63    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  64                                TYPE_VIRTIO_CRYPTO);
  65}
  66
  67static const TypeInfo virtio_crypto_pci_info = {
  68    .name          = TYPE_VIRTIO_CRYPTO_PCI,
  69    .parent        = TYPE_VIRTIO_PCI,
  70    .instance_size = sizeof(VirtIOCryptoPCI),
  71    .instance_init = virtio_crypto_initfn,
  72    .class_init    = virtio_crypto_pci_class_init,
  73};
  74
  75static void virtio_crypto_pci_register_types(void)
  76{
  77    type_register_static(&virtio_crypto_pci_info);
  78}
  79type_init(virtio_crypto_pci_register_types)
  80