mirror of
https://github.com/qemu/qemu.git
synced 2024-12-05 17:53:36 +08:00
f24bb7287d
Create a vhost-user-backend object that holds a connection to a vhost-user backend (or "slave" process) and can be referenced from virtio devices that support it. See later patches for input & gpu usage. Note: a previous iteration of this object made it user-creatable, and allowed managed sub-process spawning, but that has been dropped for now. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20190503130034.24916-4-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/*
|
|
* QEMU vhost-user backend
|
|
*
|
|
* Copyright (C) 2018 Red Hat Inc
|
|
*
|
|
* Authors:
|
|
* Marc-André Lureau <marcandre.lureau@redhat.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*/
|
|
#ifndef QEMU_VHOST_USER_BACKEND_H
|
|
#define QEMU_VHOST_USER_BACKEND_H
|
|
|
|
#include "qom/object.h"
|
|
#include "exec/memory.h"
|
|
#include "qemu/option.h"
|
|
#include "qemu/bitmap.h"
|
|
#include "hw/virtio/vhost.h"
|
|
#include "hw/virtio/vhost-user.h"
|
|
#include "chardev/char-fe.h"
|
|
#include "io/channel.h"
|
|
|
|
#define TYPE_VHOST_USER_BACKEND "vhost-user-backend"
|
|
#define VHOST_USER_BACKEND(obj) \
|
|
OBJECT_CHECK(VhostUserBackend, (obj), TYPE_VHOST_USER_BACKEND)
|
|
#define VHOST_USER_BACKEND_GET_CLASS(obj) \
|
|
OBJECT_GET_CLASS(VhostUserBackendClass, (obj), TYPE_VHOST_USER_BACKEND)
|
|
#define VHOST_USER_BACKEND_CLASS(klass) \
|
|
OBJECT_CLASS_CHECK(VhostUserBackendClass, (klass), TYPE_VHOST_USER_BACKEND)
|
|
|
|
typedef struct VhostUserBackend VhostUserBackend;
|
|
typedef struct VhostUserBackendClass VhostUserBackendClass;
|
|
|
|
struct VhostUserBackendClass {
|
|
ObjectClass parent_class;
|
|
};
|
|
|
|
struct VhostUserBackend {
|
|
/* private */
|
|
Object parent;
|
|
|
|
char *chr_name;
|
|
CharBackend chr;
|
|
VhostUserState vhost_user;
|
|
struct vhost_dev dev;
|
|
VirtIODevice *vdev;
|
|
bool started;
|
|
bool completed;
|
|
};
|
|
|
|
int vhost_user_backend_dev_init(VhostUserBackend *b, VirtIODevice *vdev,
|
|
unsigned nvqs, Error **errp);
|
|
void vhost_user_backend_start(VhostUserBackend *b);
|
|
void vhost_user_backend_stop(VhostUserBackend *b);
|
|
|
|
#endif
|