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vhost-user-fs-ccw.c (2285B)

      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)