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, 26 VHOST_USER_BACKEND) 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