Re: [Xen-devel] Are drivers in Dom0 virtualized in any way

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> > That helped a lot, I understand much better now.  Just to be 100%
> > certain though, the net result of the details you provided are that
> > the physical drivers (not the back drivers) running in Dom0 have not
> > been modified from their source as it is in the vanilla linux kernel?

The only difference is that functions called by those drivers (or macros used 
by them) may have xen-specific implementations.  However, the API used for 
the drivers themselves has not changed and the drivers generally need no 
changes.

Conversely, the backend drivers are aware of Xen-related issues but they just 
plumb into the block / net stack at a fairly generic layer and are unaware of 
the nature of the underlying device - Linux handles that.

Cheers,
Mark

-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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