Re: virtio implementation?

[Rusty Russell <rusty-8n+1lVoiYb80n/F98K4Iww@public.gmane.org>]

On Tue, 2007-07-17 at 06:31 -0700, Dor Laor wrote:
> >Hi Rusty,
> >  I was curious if there are any implementations of your virtio
> >substrate for KVM yet?  And if not, I can offer help to get this done
> as
> >I have an immediate need for a ring-buffer like PV channel.
> >
> >Regards,
> >-Greg
> 
> Actually I was planning of doing it. I'm maintaining our not-merged PV
> network drivers branch
> [started by Ingo Molnar].
> Since they already contain a ring + network logic I though of dropping
> the front end 
> part and hooking with virtio.	
> I also want to add/use virtio layer for the host side - KVM, Xen and
> lguest all have Linux host
> backend it makes logic to use a generic host drivers for
> networking/block device too.
> Actually this is my KVM forum presentation.

OK, I've been working on GSO for virtio net.  I'll post once I have it
tested.

> You're welcome to rip my ring code ;)
> 
> btw: Rusty - what do you think of virtio for the host?

You mean backend?  For networking it makes a great deal of sense.  For
block it makes far less sense (COW, weird formats, etc).

Cheers,
Rusty.


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