xref: /openbmc/qemu/hw/s390x/virtio-ccw-blk.c (revision 7da50d64)
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 #include "hw/virtio/virtio-blk.h"
19 
20 #define TYPE_VIRTIO_BLK_CCW "virtio-blk-ccw"
21 OBJECT_DECLARE_SIMPLE_TYPE(VirtIOBlkCcw, VIRTIO_BLK_CCW)
22 
23 struct VirtIOBlkCcw {
24     VirtioCcwDevice parent_obj;
25     VirtIOBlock vdev;
26 };
27 
virtio_ccw_blk_realize(VirtioCcwDevice * ccw_dev,Error ** errp)28 static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp)
29 {
30     VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev);
31     DeviceState *vdev = DEVICE(&dev->vdev);
32 
33     qdev_realize(vdev, BUS(&ccw_dev->bus), errp);
34 }
35 
virtio_ccw_blk_instance_init(Object * obj)36 static void virtio_ccw_blk_instance_init(Object *obj)
37 {
38     VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj);
39 
40     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
41                                 TYPE_VIRTIO_BLK);
42     object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
43                               "bootindex");
44 }
45 
46 static Property virtio_ccw_blk_properties[] = {
47     DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
48                     VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
49     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
50                        VIRTIO_CCW_MAX_REV),
51     DEFINE_PROP_END_OF_LIST(),
52 };
53 
virtio_ccw_blk_class_init(ObjectClass * klass,void * data)54 static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data)
55 {
56     DeviceClass *dc = DEVICE_CLASS(klass);
57     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
58 
59     k->realize = virtio_ccw_blk_realize;
60     device_class_set_props(dc, virtio_ccw_blk_properties);
61     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
62 }
63 
64 static const TypeInfo virtio_ccw_blk = {
65     .name          = TYPE_VIRTIO_BLK_CCW,
66     .parent        = TYPE_VIRTIO_CCW_DEVICE,
67     .instance_size = sizeof(VirtIOBlkCcw),
68     .instance_init = virtio_ccw_blk_instance_init,
69     .class_init    = virtio_ccw_blk_class_init,
70 };
71 
virtio_ccw_blk_register(void)72 static void virtio_ccw_blk_register(void)
73 {
74     type_register_static(&virtio_ccw_blk);
75 }
76 
77 type_init(virtio_ccw_blk_register)
78