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FORK: QEMU emulator
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virtio-ccw-blk.c (2280B)

      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"
     21 OBJECT_DECLARE_SIMPLE_TYPE(VirtIOBlkCcw, VIRTIO_BLK_CCW)
     22 
     23 struct VirtIOBlkCcw {
     24     VirtioCcwDevice parent_obj;
     25     VirtIOBlock vdev;
     26 };
     27 
     28 static 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 
     36 static 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 
     46 static 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 
     54 static 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 
     64 static 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 
     72 static void virtio_ccw_blk_register(void)
     73 {
     74     type_register_static(&virtio_ccw_blk);
     75 }
     76 
     77 type_init(virtio_ccw_blk_register)