xref: /openbmc/qemu/hw/s390x/vhost-user-fs-ccw.c (revision 92d09502)
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 
vhost_user_fs_ccw_realize(VirtioCcwDevice * ccw_dev,Error ** errp)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 
vhost_user_fs_ccw_instance_init(Object * obj)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 
vhost_user_fs_ccw_class_init(ObjectClass * klass,void * data)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 
vhost_user_fs_ccw_register(void)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)
76