LXR qemu/hw/s390x/virtio-ccw-blk.c

   1/*
   2 * virtio ccw block implementation
   3 *
   4 * Copyright 2012, 2015 IBM Corp.
   5 * Author(s): Cornelia Huck <cornelia.huck@de.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#include "qemu/osdep.h"
  13#include "hw/qdev-properties.h"
  14#include "hw/virtio/virtio.h"
  15#include "qapi/error.h"
  16#include "qemu/module.h"
  17#include "virtio-ccw.h"
  18#include "hw/virtio/virtio-blk.h"
  19
  20#define TYPE_VIRTIO_BLK_CCW "virtio-blk-ccw"
  21OBJECT_DECLARE_SIMPLE_TYPE(VirtIOBlkCcw, VIRTIO_BLK_CCW)
  22
  23struct VirtIOBlkCcw {
  24    VirtioCcwDevice parent_obj;
  25    VirtIOBlock vdev;
  26};
  27
  28static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp)
  29{
  30    VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev);
  31    DeviceState *vdev = DEVICE(&dev->vdev);
  32
  33    qdev_realize(vdev, BUS(&ccw_dev->bus), errp);
  34}
  35
  36static void virtio_ccw_blk_instance_init(Object *obj)
  37{
  38    VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj);
  39
  40    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  41                                TYPE_VIRTIO_BLK);
  42    object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
  43                              "bootindex");
  44}
  45
  46static Property virtio_ccw_blk_properties[] = {
  47    DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
  48                    VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
  49    DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
  50                       VIRTIO_CCW_MAX_REV),
  51    DEFINE_PROP_END_OF_LIST(),
  52};
  53
  54static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data)
  55{
  56    DeviceClass *dc = DEVICE_CLASS(klass);
  57    VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
  58
  59    k->realize = virtio_ccw_blk_realize;
  60    device_class_set_props(dc, virtio_ccw_blk_properties);
  61    set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
  62}
  63
  64static const TypeInfo virtio_ccw_blk = {
  65    .name          = TYPE_VIRTIO_BLK_CCW,
  66    .parent        = TYPE_VIRTIO_CCW_DEVICE,
  67    .instance_size = sizeof(VirtIOBlkCcw),
  68    .instance_init = virtio_ccw_blk_instance_init,
  69    .class_init    = virtio_ccw_blk_class_init,
  70};
  71
  72static void virtio_ccw_blk_register(void)
  73{
  74    type_register_static(&virtio_ccw_blk);
  75}
  76
  77type_init(virtio_ccw_blk_register)
  78