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 }; 30 typedef struct CcwDevice CcwDevice; 31 32 extern const VMStateDescription vmstate_ccw_dev; 33 #define VMSTATE_CCW_DEVICE(_field, _state) \ 34 VMSTATE_STRUCT(_field, _state, 1, vmstate_ccw_dev, CcwDevice) 35 36 struct CCWDeviceClass { 37 DeviceClass parent_class; 38 void (*unplug)(HotplugHandler *, DeviceState *, Error **); 39 void (*realize)(CcwDevice *, Error **); 40 void (*refill_ids)(CcwDevice *); 41 }; 42 43 static inline CcwDevice *to_ccw_dev_fast(DeviceState *d) 44 { 45 return container_of(d, CcwDevice, parent_obj); 46 } 47 48 #define TYPE_CCW_DEVICE "ccw-device" 49 50 OBJECT_DECLARE_TYPE(CcwDevice, CCWDeviceClass, CCW_DEVICE) 51 52 #endif 53