Re: [Xen-devel] [PATCH] x86: rework hypercall argument translation area setup

[Keir Fraser <keir.xen@xxxxxxxxx>]

On 21/02/2013 13:05, "Jan Beulich" <JBeulich@xxxxxxxx> wrote:

>>>> On 21.02.13 at 13:57, Keir Fraser <keir.xen@xxxxxxxxx> wrote:
>> On 21/02/2013 12:26, "Jan Beulich" <JBeulich@xxxxxxxx> wrote:
>>> Are we concerned about the performance of guest GDT/LDT page
>>> (un)mappings?
>> 
>> LDT must often change on guest process context switch? So I would think yes
>> we do.
> 
> Linux doesn't normally use an LDT (i.e. only exotic processes
> would have one of non-zero size).

That being the case, we probably don't care so much.

 -- Keir

> Jan
> 



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