xref: /openbmc/qemu/hw/s390x/virtio-ccw-9p.c (revision ebe15582)
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     dc->props = 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