[libvirt] [PATCH 6/9] conf: qemu: add virtio-fs fsdriver type

Stefan Hajnoczi stefanha at gmail.com
Mon Nov 4 08:56:28 UTC 2019

On Fri, Nov 1, 2019 at 1:15 PM Ján Tomko <jtomko at redhat.com> wrote:
> Introduce a new 'virtio-fs' driver type for filesystem.
> <filesystem type='mount' accessmode='passthrough'>
>   <driver type='virtio-fs'/>
>   <source dir='/path'/>
>   <target dir='/path'/>

What happens with the target dir?

virtio-fs has no way to pass the target dir into the guest.
Out-of-band methods exist: qemu-guest-agent could be used to mount the
file system.  Another approach is to add a uevent to the virtiofs.ko
guest driver and let udev configuration decide what to do (e.g.
automount under /run/media/virtio-fs/$TAG or similar).


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