qemu

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/*
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 * virtio ccw scsi implementation
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 *
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 * Copyright 2012, 2015 IBM Corp.
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 * Author(s): Cornelia Huck <cornelia.huck@de.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 "hw/qdev-properties.h"
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#include "hw/virtio/virtio.h"
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#include "qapi/error.h"
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#include "qemu/module.h"
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#include "virtio-ccw.h"
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#include "hw/virtio/virtio-scsi.h"
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#define TYPE_VIRTIO_SCSI_CCW "virtio-scsi-ccw"
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OBJECT_DECLARE_SIMPLE_TYPE(VirtIOSCSICcw, VIRTIO_SCSI_CCW)
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struct VirtIOSCSICcw {
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    VirtioCcwDevice parent_obj;
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    VirtIOSCSI vdev;
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};
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static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
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{
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    VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev);
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    DeviceState *vdev = DEVICE(&dev->vdev);
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    DeviceState *qdev = DEVICE(ccw_dev);
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    char *bus_name;
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    /*
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     * For command line compatibility, this sets the virtio-scsi-device bus
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     * name as before.
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     */
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    if (qdev->id) {
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        bus_name = g_strdup_printf("%s.0", qdev->id);
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        virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
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        g_free(bus_name);
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    }
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    qdev_realize(vdev, BUS(&ccw_dev->bus), errp);
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}
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static void virtio_ccw_scsi_instance_init(Object *obj)
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{
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    VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj);
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    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
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                                TYPE_VIRTIO_SCSI);
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}
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static Property virtio_ccw_scsi_properties[] = {
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    DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
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                    VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
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    DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
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                       VIRTIO_CCW_MAX_REV),
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    DEFINE_PROP_END_OF_LIST(),
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};
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static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data)
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{
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    DeviceClass *dc = DEVICE_CLASS(klass);
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    VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
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    k->realize = virtio_ccw_scsi_realize;
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    device_class_set_props(dc, virtio_ccw_scsi_properties);
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    set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
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}
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static const TypeInfo virtio_ccw_scsi = {
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    .name          = TYPE_VIRTIO_SCSI_CCW,
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    .parent        = TYPE_VIRTIO_CCW_DEVICE,
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    .instance_size = sizeof(VirtIOSCSICcw),
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    .instance_init = virtio_ccw_scsi_instance_init,
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    .class_init    = virtio_ccw_scsi_class_init,
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};
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static void virtio_ccw_scsi_register(void)
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{
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    type_register_static(&virtio_ccw_scsi);
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}
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type_init(virtio_ccw_scsi_register)
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