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Re: [Xen-devel] frontend and backend devices and differenttypes of hw -

To: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] frontend and backend devices and differenttypes of hw - pci for example
From: Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Date: Sun, 4 Sep 2005 16:38:35 +0100
Cc: Sting Zax <zstingx@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Stefan Berger <stefanb@xxxxxxxxxx>, xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
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> > Since people often like to partition their systems using Xen,
> > I don't really like giving apps easy access to the hardware
> > in this way.  I'd like to have the option of trapping IO port
> > writes in Xen and verifying the guest's IO privileges in
> > software, then emulating the write.
>
> That's how it works in -unstable today...

Ah, so it is.  IOPL emulation works correctly - cute :-)  I actually vaguely 
remember the checkin but didn't look at the diff at the time.

Thanks,
Mark

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