xref: /openbmc/qemu/hw/s390x/virtio-ccw-blk.c (revision 64552b6b)
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/virtio/virtio.h"
14 #include "qapi/error.h"
15 #include "qemu/module.h"
16 #include "virtio-ccw.h"
17 
18 static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp)
19 {
20     VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev);
21     DeviceState *vdev = DEVICE(&dev->vdev);
22 
23     qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
24     object_property_set_bool(OBJECT(vdev), true, "realized", 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", &error_abort);
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     dc->props = 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