From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ivan Kelly <ivan@ivankelly.net>
Subject: Re: Updating built-in GDT
Date: Tue, 24 Jan 2006 11:47:23 +0000
Message-ID: <20060124114702.GA3551@ivankelly.net>
References: <20060123180155.GB6749@ivankelly.net>
	<b4f4aafc48348605504d8e1c62e188e7@cl.cam.ac.uk>
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To: Keir Fraser <Keir.Fraser@cl.cam.ac.uk>
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On Tue, Jan 24, 2006 at 11:35:05AM +0000, Keir Fraser wrote:
> You can't update the built-in GDT. Instead, create your own and pass 
> the list of MFNs that comprise your GDT to the set_gdt() hypercall. You 
> must ensure you have only read-only mappings of those MFNs before 
> passing them to that hypercall! If you wish to update your GDT, use the 
> update_descriptor() hypercall.
I ended up taking this approach, though i've yet to get it to work. With
update_descriptor the first argument is a machine address. Should this be the
machine frame number + offset of entry?
Regards
Ivan