1 /*
2  * QEMU vhost-user backend
3  *
4  * Copyright (C) 2018 Red Hat Inc
5  *
6  * Authors:
7  *  Marc-André Lureau <marcandre.lureau@redhat.com>
8  *
9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
10  * See the COPYING file in the top-level directory.
11  */
12 #ifndef QEMU_VHOST_USER_BACKEND_H
13 #define QEMU_VHOST_USER_BACKEND_H
14 
15 #include "qom/object.h"
16 #include "exec/memory.h"
17 #include "qemu/option.h"
18 #include "qemu/bitmap.h"
19 #include "hw/virtio/vhost.h"
20 #include "hw/virtio/vhost-user.h"
21 #include "chardev/char-fe.h"
22 #include "io/channel.h"
23 
24 #define TYPE_VHOST_USER_BACKEND "vhost-user-backend"
25 OBJECT_DECLARE_SIMPLE_TYPE(VhostUserBackend, vhost_user_backend,
26                            VHOST_USER_BACKEND, ObjectClass)
27 
28 
29 
30 struct VhostUserBackend {
31     /* private */
32     Object parent;
33 
34     char *chr_name;
35     CharBackend chr;
36     VhostUserState vhost_user;
37     struct vhost_dev dev;
38     VirtIODevice *vdev;
39     bool started;
40     bool completed;
41 };
42 
43 int vhost_user_backend_dev_init(VhostUserBackend *b, VirtIODevice *vdev,
44                                 unsigned nvqs, Error **errp);
45 void vhost_user_backend_start(VhostUserBackend *b);
46 void vhost_user_backend_stop(VhostUserBackend *b);
47 
48 #endif
49