1 /*
2  * Parent class for vhost-vsock devices
3  *
4  * Copyright 2015-2020 Red Hat, Inc.
5  *
6  * This work is licensed under the terms of the GNU GPL, version 2 or
7  * (at your option) any later version.  See the COPYING file in the
8  * top-level directory.
9  */
10 
11 #ifndef _QEMU_VHOST_VSOCK_COMMON_H
12 #define _QEMU_VHOST_VSOCK_COMMON_H
13 
14 #include "hw/virtio/virtio.h"
15 #include "hw/virtio/vhost.h"
16 #include "qom/object.h"
17 
18 #define TYPE_VHOST_VSOCK_COMMON "vhost-vsock-common"
19 OBJECT_DECLARE_SIMPLE_TYPE(VHostVSockCommon, VHOST_VSOCK_COMMON)
20 
21 enum {
22     VHOST_VSOCK_SAVEVM_VERSION = 0,
23 
24     VHOST_VSOCK_QUEUE_SIZE = 128,
25 };
26 
27 struct VHostVSockCommon {
28     VirtIODevice parent;
29 
30     struct vhost_virtqueue vhost_vqs[2];
31     struct vhost_dev vhost_dev;
32 
33     VirtQueue *event_vq;
34     VirtQueue *recv_vq;
35     VirtQueue *trans_vq;
36 
37     QEMUTimer *post_load_timer;
38 
39     /* features */
40     OnOffAuto seqpacket;
41 };
42 
43 int vhost_vsock_common_start(VirtIODevice *vdev);
44 void vhost_vsock_common_stop(VirtIODevice *vdev);
45 int vhost_vsock_common_pre_save(void *opaque);
46 int vhost_vsock_common_post_load(void *opaque, int version_id);
47 void vhost_vsock_common_realize(VirtIODevice *vdev, const char *name);
48 void vhost_vsock_common_unrealize(VirtIODevice *vdev);
49 uint64_t vhost_vsock_common_get_features(VirtIODevice *vdev, uint64_t features,
50                                          Error **errp);
51 
52 #endif /* _QEMU_VHOST_VSOCK_COMMON_H */
53