xref: /openbmc/qemu/hw/s390x/virtio-ccw-9p.c (revision 4966c5bd)
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/virtio/virtio.h"
14 #include "qapi/error.h"
15 #include "virtio-ccw.h"
16 
17 static void virtio_ccw_9p_realize(VirtioCcwDevice *ccw_dev, Error **errp)
18 {
19     V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev);
20     DeviceState *vdev = DEVICE(&dev->vdev);
21 
22     qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
23     object_property_set_bool(OBJECT(vdev), true, "realized", errp);
24 }
25 
26 static void virtio_ccw_9p_instance_init(Object *obj)
27 {
28     V9fsCCWState *dev = VIRTIO_9P_CCW(obj);
29 
30     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
31                                 TYPE_VIRTIO_9P);
32 }
33 
34 static Property virtio_ccw_9p_properties[] = {
35     DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
36             VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
37     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
38                        VIRTIO_CCW_MAX_REV),
39     DEFINE_PROP_END_OF_LIST(),
40 };
41 
42 static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data)
43 {
44     DeviceClass *dc = DEVICE_CLASS(klass);
45     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
46 
47     k->realize = virtio_ccw_9p_realize;
48     dc->props = virtio_ccw_9p_properties;
49     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
50 }
51 
52 static const TypeInfo virtio_ccw_9p_info = {
53     .name          = TYPE_VIRTIO_9P_CCW,
54     .parent        = TYPE_VIRTIO_CCW_DEVICE,
55     .instance_size = sizeof(V9fsCCWState),
56     .instance_init = virtio_ccw_9p_instance_init,
57     .class_init    = virtio_ccw_9p_class_init,
58 };
59 
60 static void virtio_ccw_9p_register(void)
61 {
62     type_register_static(&virtio_ccw_9p_info);
63 }
64 
65 type_init(virtio_ccw_9p_register)
66