xref: /qemu/hw/s390x/virtio-ccw-blk.c (revision 46627f41b6b781885c64a2b12814060a7ca8da36)
1  /*
2   * virtio ccw block 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  
19  static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp)
20  {
21      VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev);
22      DeviceState *vdev = DEVICE(&dev->vdev);
23  
24      qdev_realize(vdev, BUS(&ccw_dev->bus), errp);
25  }
26  
27  static void virtio_ccw_blk_instance_init(Object *obj)
28  {
29      VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj);
30  
31      virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
32                                  TYPE_VIRTIO_BLK);
33      object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
34                                "bootindex");
35  }
36  
37  static Property virtio_ccw_blk_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  
45  static void virtio_ccw_blk_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_blk_realize;
51      device_class_set_props(dc, virtio_ccw_blk_properties);
52      set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
53  }
54  
55  static const TypeInfo virtio_ccw_blk = {
56      .name          = TYPE_VIRTIO_BLK_CCW,
57      .parent        = TYPE_VIRTIO_CCW_DEVICE,
58      .instance_size = sizeof(VirtIOBlkCcw),
59      .instance_init = virtio_ccw_blk_instance_init,
60      .class_init    = virtio_ccw_blk_class_init,
61  };
62  
63  static void virtio_ccw_blk_register(void)
64  {
65      type_register_static(&virtio_ccw_blk);
66  }
67  
68  type_init(virtio_ccw_blk_register)
69