Re: DAX support in virtiofsd

> Does that mean you already have code for read-only DAX in virtiofsd?
We have been using the DAX that was implemented in virtiofsd and
vhost-user rust crate but later removed.

Our vhost-user implementation is for an internal VMM.

> I don’t think there’s a strict order here; if you want to implement
> write access, that solution probably has to be found, so delaying it
> until after the rest may not be ideal.  On the other hand, we’d already
> be happy with just read-only DAX, too.  (And steps 1 through 4 may need
> to be done simultaneously as a proof of concept, to show that potential
> vhost-user spec changes make sense.)
I will start with read-only as we haven't solved the write limitations yet.


> There is absolutely no resistance to this work, German Maglione and me
> (virtiofsd maintainers) would be more than happy to assist.
Wonderful, thank you!


> FWIW, there’s a virtiofsd “community” call (usually just German and me,
> hence the quotation marks) every two weeks on Wednesdays 10 am ET (i.e.
> currently EDT, so 2 pm GMT), including today, on
> https://meet.google.com/bsx-qnxz-ifz (notes on
> https://etherpad.opendev.org/p/virtiofs-external-meeting).  We’re happy
> to discuss anything you’d like there, too.
I plan to join the next call, Sept 17.