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63b901bfd30a0975bc326ba8527880fabac2e66d
qemu/block/export/vduse-blk.h

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vduse-blk: Implement vduse-blk export This implements a VDUSE block backends based on the libvduse library. We can use it to export the BDSs for both VM and container (host) usage. The new command-line syntax is: $ qemu-storage-daemon \ --blockdev file,node-name=drive0,filename=test.img \ --export vduse-blk,node-name=drive0,id=vduse-export0,writable=on After the qemu-storage-daemon started, we need to use the "vdpa" command to attach the device to vDPA bus: $ vdpa dev add name vduse-export0 mgmtdev vduse Also the device must be removed via the "vdpa" command before we stop the qemu-storage-daemon. Signed-off-by: Xie Yongji <xieyongji@bytedance.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20220523084611.91-7-xieyongji@bytedance.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-05-23 16:46:09 +08:00
/*
* Export QEMU block device via VDUSE
*
* Copyright (C) 2022 Bytedance Inc. and/or its affiliates. All rights reserved.
*
* Author:
* Xie Yongji <xieyongji@bytedance.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 VDUSE_BLK_H
#define VDUSE_BLK_H
#include "block/export.h"
extern const BlockExportDriver blk_exp_vduse_blk;
#endif /* VDUSE_BLK_H */
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