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
  19 static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp)
  20 {
  21     VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev);
  22     DeviceState *vdev = DEVICE(&dev->vdev);
  23
  24     qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
  25     object_property_set_bool(OBJECT(vdev), true, "realized", errp);
  26 }
  27
  28 static void virtio_ccw_blk_instance_init(Object *obj)
  29 {
  30     VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj);
  31
  32     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  33                                 TYPE_VIRTIO_BLK);
  34     object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
  35                               "bootindex", &error_abort);
  36 }
  37
  38 static Property virtio_ccw_blk_properties[] = {
  39     DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
  40                     VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
  41     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
  42                        VIRTIO_CCW_MAX_REV),
  43     DEFINE_PROP_END_OF_LIST(),
  44 };
  45
  46 static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data)
  47 {
  48     DeviceClass *dc = DEVICE_CLASS(klass);
  49     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
  50
  51     k->realize = virtio_ccw_blk_realize;
  52     device_class_set_props(dc, virtio_ccw_blk_properties);
  53     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
  54 }
  55
  56 static const TypeInfo virtio_ccw_blk = {
  57     .name          = TYPE_VIRTIO_BLK_CCW,
  58     .parent        = TYPE_VIRTIO_CCW_DEVICE,
  59     .instance_size = sizeof(VirtIOBlkCcw),
  60     .instance_init = virtio_ccw_blk_instance_init,
  61     .class_init    = virtio_ccw_blk_class_init,
  62 };
  63
  64 static void virtio_ccw_blk_register(void)
  65 {
  66     type_register_static(&virtio_ccw_blk);
  67 }
  68
  69 type_init(virtio_ccw_blk_register)