Re: [PATCH v2 0/6] Support exporting BDSs via VDUSE

[Stefan Hajnoczi]

On Tue, Feb 15, 2022 at 06:59:37PM +0800, Xie Yongji wrote:
> Hi all,
> 
> Last few months ago, VDUSE (vDPA Device in Userspace) [1] has
> been merged into Linux kernel as a framework that make it
> possible to emulate a vDPA device in userspace. This series
> aimed at implementing a VDUSE block backend based on the
> qemu-storage-daemon infrastructure.
> 
> To support that, we firstly introduce a VDUSE library as a
> subproject (like what libvhost-user does) to help implementing
> VDUSE backends in QEMU. Then a VDUSE block export is implemented
> based on this library. At last, we add resize and reconnect support
> to the VDUSE block export and VDUSE library.
> 
> Since we don't support vdpa-blk in QEMU currently, the VM case is
> tested with my previous patchset [2].
> 
> [1] https://www.kernel.org/doc/html/latest/userspace-api/vduse.html
> [2] https://www.mail-archive.com/qemu-devel@nongnu.org/msg797569.html
> 
> Please review, thanks!

Sorry for the delay. I will review this on Monday.

Stefan

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