| 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/core/qdev.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 | 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 |