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/*
* Common device infrastructure for devices in the virtual css
*
* Copyright 2016 IBM Corp.
* Author(s): Jing Liu <liujbjl@linux.vnet.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or (at
* your option) any later version. See the COPYING file in the top-level
* directory.
*/
#ifndef HW_S390X_CCW_DEVICE_H
#define HW_S390X_CCW_DEVICE_H
#include "qom/object.h"
#include "hw/qdev-core.h"
#include "hw/s390x/css.h"
struct CcwDevice {
DeviceState parent_obj;
SubchDev *sch;
/* <cssid>.<ssid>.<device number> */
/* The user-set busid of the virtual ccw device. */
CssDevId devno;
/* The actual busid of the virtual ccw device. */
CssDevId dev_id;
/* The actual busid of the virtual subchannel. */
CssDevId subch_id;
};
typedef struct CcwDevice CcwDevice;
extern const VMStateDescription vmstate_ccw_dev;
#define VMSTATE_CCW_DEVICE(_field, _state) \
VMSTATE_STRUCT(_field, _state, 1, vmstate_ccw_dev, CcwDevice)
struct CCWDeviceClass {
DeviceClass parent_class;
void (*unplug)(HotplugHandler *, DeviceState *, Error **);
void (*realize)(CcwDevice *, Error **);
void (*refill_ids)(CcwDevice *);
};
typedef struct CCWDeviceClass CCWDeviceClass;
static inline CcwDevice *to_ccw_dev_fast(DeviceState *d)
{
return container_of(d, CcwDevice, parent_obj);
}
#define TYPE_CCW_DEVICE "ccw-device"
#define CCW_DEVICE(obj) OBJECT_CHECK(CcwDevice, (obj), TYPE_CCW_DEVICE)
#define CCW_DEVICE_GET_CLASS(obj) \
OBJECT_GET_CLASS(CCWDeviceClass, (obj), TYPE_CCW_DEVICE)
#define CCW_DEVICE_CLASS(klass) \
OBJECT_CLASS_CHECK(CCWDeviceClass, (klass), TYPE_CCW_DEVICE)
#endif
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