hw/s390x/virtio-ccw-crypto.c

   1 /*
   2  * virtio ccw crypto implementation
   3  *
   4  * Copyright 2012, 2015 IBM Corp.
   5  *
   6  * This work is licensed under the terms of the GNU GPL, version 2 or (at
   7  * your option) any later version. See the COPYING file in the top-level
   8  * directory.
   9  */
  10
  11 #include "qemu/osdep.h"
  12 #include "hw/qdev-properties.h"
  13 #include "hw/virtio/virtio.h"
  14 #include "qapi/error.h"
  15 #include "qemu/module.h"
  16 #include "virtio-ccw.h"
  17
  18 static void virtio_ccw_crypto_realize(VirtioCcwDevice *ccw_dev, Error **errp)
  19 {
  20     VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(ccw_dev);
  21     DeviceState *vdev = DEVICE(&dev->vdev);
  22     Error *err = NULL;
  23
  24     qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
  25     object_property_set_bool(OBJECT(vdev), true, "realized", &err);
  26     if (err) {
  27         error_propagate(errp, err);
  28         return;
  29     }
  30
  31     object_property_set_link(OBJECT(vdev),
  32                              OBJECT(dev->vdev.conf.cryptodev), "cryptodev",
  33                              NULL);
  34 }
  35
  36 static void virtio_ccw_crypto_instance_init(Object *obj)
  37 {
  38     VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(obj);
  39     VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj);
  40
  41     ccw_dev->force_revision_1 = true;
  42     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  43                                 TYPE_VIRTIO_CRYPTO);
  44 }
  45
  46 static Property virtio_ccw_crypto_properties[] = {
  47     DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
  48                     VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
  49     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
  50                        VIRTIO_CCW_MAX_REV),
  51     DEFINE_PROP_END_OF_LIST(),
  52 };
  53
  54 static void virtio_ccw_crypto_class_init(ObjectClass *klass, void *data)
  55 {
  56     DeviceClass *dc = DEVICE_CLASS(klass);
  57     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
  58
  59     k->realize = virtio_ccw_crypto_realize;
  60     dc->props = virtio_ccw_crypto_properties;
  61     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
  62 }
  63
  64 static const TypeInfo virtio_ccw_crypto = {
  65     .name          = TYPE_VIRTIO_CRYPTO_CCW,
  66     .parent        = TYPE_VIRTIO_CCW_DEVICE,
  67     .instance_size = sizeof(VirtIOCryptoCcw),
  68     .instance_init = virtio_ccw_crypto_instance_init,
  69     .class_init    = virtio_ccw_crypto_class_init,
  70 };
  71
  72 static void virtio_ccw_crypto_register(void)
  73 {
  74     type_register_static(&virtio_ccw_crypto);
  75 }
  76
  77 type_init(virtio_ccw_crypto_register)