Re: [Xen-devel] Re: [ANNOUNCE] Xen high-performance x86 virtualization

[Keir Fraser]

> > Our aim was to implement an efficient VMM for commodity hardware, and
> > that really means x86. We're considering a port to x86-64, but so far
> > we're limited in man power (this is why *BSD is not yet available, for
> > example). 
> 
> I understand. Obviously infinite resources are everyone's wish ;)
> 
> What type of an effort would it be to port Xen to a new architecture?
> I haven't looked at the code, so I can't say, but I'm really looking for
> a rough approximation: 1 man-month, 10 man-months, 100 man-months?

I did most of the arch-dependent Xen implementation myself, and that
took around 2-3 man-months. But x86-64 is not a million miles from x86,
so it wouldn't be a complete port.

My guess is it would take one or two competent-hacker-months. :-)

 -- Keir
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