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 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 #endif 55