LXR qemu/include/sysemu/vhost-user-backend.h

   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#define VHOST_USER_BACKEND(obj) \
  26    OBJECT_CHECK(VhostUserBackend, (obj), TYPE_VHOST_USER_BACKEND)
  27#define VHOST_USER_BACKEND_GET_CLASS(obj) \
  28    OBJECT_GET_CLASS(VhostUserBackendClass, (obj), TYPE_VHOST_USER_BACKEND)
  29#define VHOST_USER_BACKEND_CLASS(klass) \
  30    OBJECT_CLASS_CHECK(VhostUserBackendClass, (klass), TYPE_VHOST_USER_BACKEND)
  31
  32typedef struct VhostUserBackend VhostUserBackend;
  33typedef struct VhostUserBackendClass VhostUserBackendClass;
  34
  35struct VhostUserBackendClass {
  36    ObjectClass parent_class;
  37};
  38
  39struct VhostUserBackend {
  40    /* private */
  41    Object parent;
  42
  43    char *chr_name;
  44    CharBackend chr;
  45    VhostUserState vhost_user;
  46    struct vhost_dev dev;
  47    VirtIODevice *vdev;
  48    bool started;
  49    bool completed;
  50};
  51
  52int vhost_user_backend_dev_init(VhostUserBackend *b, VirtIODevice *vdev,
  53                                unsigned nvqs, Error **errp);
  54void vhost_user_backend_start(VhostUserBackend *b);
  55void vhost_user_backend_stop(VhostUserBackend *b);
  56
  57#endif
  58