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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.
*/
#include "qemu/osdep.h"
#include "ccw-device.h"
#include "hw/qdev-properties.h"
#include "qemu/module.h"
static void ccw_device_refill_ids(CcwDevice *dev)
{
SubchDev *sch = dev->sch;
assert(sch);
dev->dev_id.cssid = sch->cssid;
dev->dev_id.ssid = sch->ssid;
dev->dev_id.devid = sch->devno;
dev->dev_id.valid = true;
dev->subch_id.cssid = sch->cssid;
dev->subch_id.ssid = sch->ssid;
dev->subch_id.devid = sch->schid;
dev->subch_id.valid = true;
}
static void ccw_device_realize(CcwDevice *dev, Error **errp)
{
ccw_device_refill_ids(dev);
}
static Property ccw_device_properties[] = {
DEFINE_PROP_CSS_DEV_ID("devno", CcwDevice, devno),
DEFINE_PROP_CSS_DEV_ID_RO("dev_id", CcwDevice, dev_id),
DEFINE_PROP_CSS_DEV_ID_RO("subch_id", CcwDevice, subch_id),
DEFINE_PROP_END_OF_LIST(),
};
static void ccw_device_reset(DeviceState *d)
{
CcwDevice *ccw_dev = CCW_DEVICE(d);
css_reset_sch(ccw_dev->sch);
}
static void ccw_device_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
CCWDeviceClass *k = CCW_DEVICE_CLASS(klass);
k->realize = ccw_device_realize;
k->refill_ids = ccw_device_refill_ids;
device_class_set_props(dc, ccw_device_properties);
dc->reset = ccw_device_reset;
dc->bus_type = TYPE_VIRTUAL_CSS_BUS;
}
const VMStateDescription vmstate_ccw_dev = {
.name = "s390_ccw_dev",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_STRUCT_POINTER(sch, CcwDevice, vmstate_subch_dev, SubchDev),
VMSTATE_END_OF_LIST()
}
};
static const TypeInfo ccw_device_info = {
.name = TYPE_CCW_DEVICE,
.parent = TYPE_DEVICE,
.instance_size = sizeof(CcwDevice),
.class_size = sizeof(CCWDeviceClass),
.class_init = ccw_device_class_init,
.abstract = true,
};
static void ccw_device_register(void)
{
type_register_static(&ccw_device_info);
}
type_init(ccw_device_register)
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