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90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
/*
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* Common device infrastructure for devices in the virtual css
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*
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* Copyright 2016 IBM Corp.
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* Author(s): Jing Liu <liujbjl@linux.vnet.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or (at
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* your option) any later version. See the COPYING file in the top-level
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* directory.
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*/
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#include "qemu/osdep.h"
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#include "ccw-device.h"
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#include "hw/qdev-properties.h"
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#include "qemu/module.h"
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static void ccw_device_refill_ids(CcwDevice *dev)
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{
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SubchDev *sch = dev->sch;
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assert(sch);
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dev->dev_id.cssid = sch->cssid;
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dev->dev_id.ssid = sch->ssid;
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dev->dev_id.devid = sch->devno;
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dev->dev_id.valid = true;
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dev->subch_id.cssid = sch->cssid;
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dev->subch_id.ssid = sch->ssid;
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dev->subch_id.devid = sch->schid;
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dev->subch_id.valid = true;
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}
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static void ccw_device_realize(CcwDevice *dev, Error **errp)
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{
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ccw_device_refill_ids(dev);
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}
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static Property ccw_device_properties[] = {
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DEFINE_PROP_CSS_DEV_ID("devno", CcwDevice, devno),
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DEFINE_PROP_CSS_DEV_ID_RO("dev_id", CcwDevice, dev_id),
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DEFINE_PROP_CSS_DEV_ID_RO("subch_id", CcwDevice, subch_id),
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DEFINE_PROP_END_OF_LIST(),
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};
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static void ccw_device_reset(DeviceState *d)
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{
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CcwDevice *ccw_dev = CCW_DEVICE(d);
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css_reset_sch(ccw_dev->sch);
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}
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static void ccw_device_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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CCWDeviceClass *k = CCW_DEVICE_CLASS(klass);
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k->realize = ccw_device_realize;
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k->refill_ids = ccw_device_refill_ids;
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device_class_set_props(dc, ccw_device_properties);
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dc->reset = ccw_device_reset;
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dc->bus_type = TYPE_VIRTUAL_CSS_BUS;
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}
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const VMStateDescription vmstate_ccw_dev = {
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.name = "s390_ccw_dev",
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.version_id = 1,
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.minimum_version_id = 1,
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.fields = (VMStateField[]) {
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VMSTATE_STRUCT_POINTER(sch, CcwDevice, vmstate_subch_dev, SubchDev),
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VMSTATE_END_OF_LIST()
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}
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};
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static const TypeInfo ccw_device_info = {
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.name = TYPE_CCW_DEVICE,
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.parent = TYPE_DEVICE,
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.instance_size = sizeof(CcwDevice),
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.class_size = sizeof(CCWDeviceClass),
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.class_init = ccw_device_class_init,
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.abstract = true,
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};
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static void ccw_device_register(void)
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{
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type_register_static(&ccw_device_info);
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}
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type_init(ccw_device_register)
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