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
  22 static 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
  29 static 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
  47 static 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
  59 static 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
  67 static 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
  75 static void virtio_crypto_pci_register_types(void)
  76 {
  77     type_register_static(&virtio_crypto_pci_info);
  78 }
  79 type_init(virtio_crypto_pci_register_types)