meson: convert hw/vfio
[qemu.git] / hw / s390x / ccw-device.c
1 /*
2 * Common device infrastructure for devices in the virtual css
3 *
4 * Copyright 2016 IBM Corp.
5 * Author(s): Jing Liu <liujbjl@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 "ccw-device.h"
14 #include "hw/qdev-properties.h"
15 #include "qemu/module.h"
16
17 static void ccw_device_refill_ids(CcwDevice *dev)
18 {
19 SubchDev *sch = dev->sch;
20
21 assert(sch);
22
23 dev->dev_id.cssid = sch->cssid;
24 dev->dev_id.ssid = sch->ssid;
25 dev->dev_id.devid = sch->devno;
26 dev->dev_id.valid = true;
27
28 dev->subch_id.cssid = sch->cssid;
29 dev->subch_id.ssid = sch->ssid;
30 dev->subch_id.devid = sch->schid;
31 dev->subch_id.valid = true;
32 }
33
34 static void ccw_device_realize(CcwDevice *dev, Error **errp)
35 {
36 ccw_device_refill_ids(dev);
37 }
38
39 static Property ccw_device_properties[] = {
40 DEFINE_PROP_CSS_DEV_ID("devno", CcwDevice, devno),
41 DEFINE_PROP_CSS_DEV_ID_RO("dev_id", CcwDevice, dev_id),
42 DEFINE_PROP_CSS_DEV_ID_RO("subch_id", CcwDevice, subch_id),
43 DEFINE_PROP_END_OF_LIST(),
44 };
45
46 static void ccw_device_reset(DeviceState *d)
47 {
48 CcwDevice *ccw_dev = CCW_DEVICE(d);
49
50 css_reset_sch(ccw_dev->sch);
51 }
52
53 static void ccw_device_class_init(ObjectClass *klass, void *data)
54 {
55 DeviceClass *dc = DEVICE_CLASS(klass);
56 CCWDeviceClass *k = CCW_DEVICE_CLASS(klass);
57
58 k->realize = ccw_device_realize;
59 k->refill_ids = ccw_device_refill_ids;
60 device_class_set_props(dc, ccw_device_properties);
61 dc->reset = ccw_device_reset;
62 }
63
64 const VMStateDescription vmstate_ccw_dev = {
65 .name = "s390_ccw_dev",
66 .version_id = 1,
67 .minimum_version_id = 1,
68 .fields = (VMStateField[]) {
69 VMSTATE_STRUCT_POINTER(sch, CcwDevice, vmstate_subch_dev, SubchDev),
70 VMSTATE_END_OF_LIST()
71 }
72 };
73
74 static const TypeInfo ccw_device_info = {
75 .name = TYPE_CCW_DEVICE,
76 .parent = TYPE_DEVICE,
77 .instance_size = sizeof(CcwDevice),
78 .class_size = sizeof(CCWDeviceClass),
79 .class_init = ccw_device_class_init,
80 .abstract = true,
81 };
82
83 static void ccw_device_register(void)
84 {
85 type_register_static(&ccw_device_info);
86 }
87
88 type_init(ccw_device_register)