On Friday 25 August 2006 01:04, Jeremy Fitzhardinge wrote:
> (This is the replacement for kill-default_ldt.patch.)
>
> Remove default_ldt, and simplify ldt-setting.
>
> This patch removes the default_ldt[] array, as it has been unused
> since iBCS stopped being supported. This means it is now possible to
> actually set an empty LDT segment.
>
> In order to deal with this, the set_ldt_desc/load_LDT pair has been
> replaced with a single set_ldt() operation which is responsible for
> both setting up the LDT descriptor in the GDT, and reloading the LDT
> register.
Looks good.
> If there are no LDT entries, the LDT register is loaded
> with a NULL descriptor.
x86-64 currently doesn't do this -- do you see an particular advantage
in it?
-Andi
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