about xen devices

about xen devices

[Constantine Kousoulos]

Hello all,

I am a bit confused about the use of backend drivers by guest os'es.

A guest os must modify/port it's drivers so that they can 
communicate with the backend drivers? Or a guest os stops using 
its own native drivers and just communicates with the backend 
drivers through newly implemented frontend drivers?

I hope you can clear that up for me.

Thanks,
Constantine

Re: about xen devices

[Andrew D. Ball]

The latter option -- new drivers, unless you're mapping devices to
guests giving the illusion that the guest has complete controlled over
the mapped devices (pci pass-through, iommu, etc.).

Peace.
Andrew

On Tue, 2006-12-05 at 21:09 +0200, Constantine Kousoulos wrote:
> Hello all,
> 
> I am a bit confused about the use of backend drivers by guest os'es.
> 
> A guest os must modify/port it's drivers so that they can
> communicate with the backend drivers? Or a guest os stops using
> its own native drivers and just communicates with the backend
> drivers through newly implemented frontend drivers?
> 
> I hope you can clear that up for me.
> 
> Thanks,
> Constantine
> 
> 
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