Re: [Xen-devel] Updating built-in GDT

[Ivan Kelly <ivan@xxxxxxxxxxxxx>]

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

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