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 #ifndef HW_S390X_CCW_DEVICE_H
13 #define HW_S390X_CCW_DEVICE_H
14 #include "qom/object.h"
15 #include "hw/qdev-core.h"
16 #include "hw/s390x/css.h"
17 #include "hw/s390x/css-bridge.h"
18
19 struct CcwDevice {
20 DeviceState parent_obj;
21 SubchDev *sch;
22 /* <cssid>.<ssid>.<device number> */
23 /* The user-set busid of the virtual ccw device. */
24 CssDevId devno;
25 /* The actual busid of the virtual ccw device. */
26 CssDevId dev_id;
27 /* The actual busid of the virtual subchannel. */
28 CssDevId subch_id;
29 /* If set, use this loadparm value when device is boot target */
30 uint8_t loadparm[8];
31 };
32 typedef struct CcwDevice CcwDevice;
33
34 extern const VMStateDescription vmstate_ccw_dev;
35 #define VMSTATE_CCW_DEVICE(_field, _state) \
36 VMSTATE_STRUCT(_field, _state, 1, vmstate_ccw_dev, CcwDevice)
37
38 struct CCWDeviceClass {
39 DeviceClass parent_class;
40 void (*unplug)(HotplugHandler *, DeviceState *, Error **);
41 bool (*realize)(CcwDevice *, Error **);
42 void (*refill_ids)(CcwDevice *);
43 };
44
to_ccw_dev_fast(DeviceState * d)45 static inline CcwDevice *to_ccw_dev_fast(DeviceState *d)
46 {
47 return container_of(d, CcwDevice, parent_obj);
48 }
49
50 #define TYPE_CCW_DEVICE "ccw-device"
51
52 OBJECT_DECLARE_TYPE(CcwDevice, CCWDeviceClass, CCW_DEVICE)
53
54 extern const PropertyInfo ccw_loadparm;
55
56 #define DEFINE_PROP_CCW_LOADPARM(_n, _s, _f) \
57 DEFINE_PROP(_n, _s, _f, ccw_loadparm, typeof(uint8_t[8]))
58
59 #endif
60