From 2a2359b84407b35fe978e98b7396f2ab8c5dd8b7 Mon Sep 17 00:00:00 2001 From: Xie Yongji Date: Mon, 23 May 2022 16:46:09 +0800 Subject: 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 Reviewed-by: Stefan Hajnoczi Message-Id: <20220523084611.91-7-xieyongji@bytedance.com> Signed-off-by: Kevin Wolf --- MAINTAINERS | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'MAINTAINERS') diff --git a/MAINTAINERS b/MAINTAINERS index b14891898c..1cbd6b72fa 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3594,10 +3594,12 @@ L: qemu-block@nongnu.org S: Supported F: block/export/fuse.c -VDUSE library +VDUSE library and block device exports M: Xie Yongji S: Maintained F: subprojects/libvduse/ +F: block/export/vduse-blk.c +F: block/export/vduse-blk.h Replication M: Wen Congyang -- cgit v1.2.3