Re: [Qemu] how to use viriofs in qemu without NUMA

[Dr. David Alan Gilbert]

* Thomas Huth (thuth@redhat.com) wrote:
> On 05/07/2022 03.02, Zhao, Shirley wrote:
> > Hi, all,
> > 
> > I want to use virtiofs to share folder between host and guest.
> > 
> >  From the guide, it must set the NUMA node.
> > https://virtio-fs.gitlab.io/howto-qemu.html
> > 
> > But my guest doesn’t support NUMA.
> > 
> > Is there any guide to use qemu + virtiofs without NUMA?
> > 
> > Or does qemu have any plan to support it?
> 
>  Hi!
> 
> At least on s390x, you can also specify the memory backend via the -machine
> option instead of using the -numa option, e.g.:
> 
>  qemu-system-s390x -machine memory-backend=mem \
>   -object memory-backend-file,id=mem,...
> 
> Not sure whether that works on other architectures, too, though. Stefan,
> David, do you know?

Right, that's the way I do it on x86.
We wrote virtiofs before the memory-backend option existed, which is why
the old docs talk about using the NUMA stuff.

Dave

>  Thomas
> 
-- 
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK