Zachary Amsden wrote:
> The paravirt-op just got a lot harder to implement, so there is a cost 
> to the simpler interface.

I don't see why it is a "lot" harder.  It might take 5 lines of code 
rather than jumping straight into the ROM, but it doesn't seem like huge 
complexity.

> I just think it's really weird to have LDT not described in the GDT, 
> but LDT is weird anyways.

It gets excluded as part of a broader test which also prevents any 
table, but specifically the LDT, from referring to an LDT (on the 
grounds that its hard to reason about, and may be undefined).

    J
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