xref: /openbmc/qemu/hw/s390x/virtio-ccw-9p.c (revision 988717b46b6424907618cb845ace9d69062703af)
1  /*
2   * virtio ccw 9p implementation
3   *
4   * Copyright 2012, 2015 IBM Corp.
5   * Author(s): Pierre Morel <pmorel@linux.vnet.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_9p_realize(VirtioCcwDevice *ccw_dev, Error **errp)
20  {
21      V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev);
22      DeviceState *vdev = DEVICE(&dev->vdev);
23  
24      qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
25      object_property_set_bool(OBJECT(vdev), true, "realized", errp);
26  }
27  
28  static void virtio_ccw_9p_instance_init(Object *obj)
29  {
30      V9fsCCWState *dev = VIRTIO_9P_CCW(obj);
31  
32      virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
33                                  TYPE_VIRTIO_9P);
34  }
35  
36  static Property virtio_ccw_9p_properties[] = {
37      DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
38              VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
39      DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
40                         VIRTIO_CCW_MAX_REV),
41      DEFINE_PROP_END_OF_LIST(),
42  };
43  
44  static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data)
45  {
46      DeviceClass *dc = DEVICE_CLASS(klass);
47      VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
48  
49      k->realize = virtio_ccw_9p_realize;
50      device_class_set_props(dc, virtio_ccw_9p_properties);
51      set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
52  }
53  
54  static const TypeInfo virtio_ccw_9p_info = {
55      .name          = TYPE_VIRTIO_9P_CCW,
56      .parent        = TYPE_VIRTIO_CCW_DEVICE,
57      .instance_size = sizeof(V9fsCCWState),
58      .instance_init = virtio_ccw_9p_instance_init,
59      .class_init    = virtio_ccw_9p_class_init,
60  };
61  
62  static void virtio_ccw_9p_register(void)
63  {
64      type_register_static(&virtio_ccw_9p_info);
65  }
66  
67  type_init(virtio_ccw_9p_register)
68