hw/s390x/vhost-user-fs-ccw.c

   1 /*
   2  * virtio ccw vhost-user-fs implementation
   3  *
   4  * Copyright 2020 IBM Corp.
   5  *
   6  * This work is licensed under the terms of the GNU GPL, version 2 or (at
   7  * your option) any later version. See the COPYING file in the top-level
   8  * directory.
   9  */
  10 #include "qemu/osdep.h"
  11 #include "hw/qdev-properties.h"
  12 #include "qapi/error.h"
  13 #include "hw/virtio/vhost-user-fs.h"
  14 #include "virtio-ccw.h"
  15
  16 typedef struct VHostUserFSCcw {
  17     VirtioCcwDevice parent_obj;
  18     VHostUserFS vdev;
  19 } VHostUserFSCcw;
  20
  21 #define TYPE_VHOST_USER_FS_CCW "vhost-user-fs-ccw"
  22 #define VHOST_USER_FS_CCW(obj) \
  23         OBJECT_CHECK(VHostUserFSCcw, (obj), TYPE_VHOST_USER_FS_CCW)
  24
  25
  26 static Property vhost_user_fs_ccw_properties[] = {
  27     DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
  28                     VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
  29     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
  30                        VIRTIO_CCW_MAX_REV),
  31     DEFINE_PROP_END_OF_LIST(),
  32 };
  33
  34 static void vhost_user_fs_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp)
  35 {
  36     VHostUserFSCcw *dev = VHOST_USER_FS_CCW(ccw_dev);
  37     DeviceState *vdev = DEVICE(&dev->vdev);
  38
  39     qdev_realize(vdev, BUS(&ccw_dev->bus), errp);
  40 }
  41
  42 static void vhost_user_fs_ccw_instance_init(Object *obj)
  43 {
  44     VHostUserFSCcw *dev = VHOST_USER_FS_CCW(obj);
  45     VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj);
  46
  47     ccw_dev->force_revision_1 = true;
  48     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  49                                 TYPE_VHOST_USER_FS);
  50 }
  51
  52 static void vhost_user_fs_ccw_class_init(ObjectClass *klass, void *data)
  53 {
  54     DeviceClass *dc = DEVICE_CLASS(klass);
  55     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
  56
  57     k->realize = vhost_user_fs_ccw_realize;
  58     device_class_set_props(dc, vhost_user_fs_ccw_properties);
  59     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
  60 }
  61
  62 static const TypeInfo vhost_user_fs_ccw = {
  63     .name          = TYPE_VHOST_USER_FS_CCW,
  64     .parent        = TYPE_VIRTIO_CCW_DEVICE,
  65     .instance_size = sizeof(VHostUserFSCcw),
  66     .instance_init = vhost_user_fs_ccw_instance_init,
  67     .class_init    = vhost_user_fs_ccw_class_init,
  68 };
  69
  70 static void vhost_user_fs_ccw_register(void)
  71 {
  72     type_register_static(&vhost_user_fs_ccw);
  73 }
  74
  75 type_init(vhost_user_fs_ccw_register)