Re: [patch 07/26] Xen-paravirt_ops: Allow paravirt backend to choose kernel PMD sharing
From: Ingo Molnar
Date: Fri Mar 16 2007 - 05:32:45 EST
* Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:
> Normally when running in PAE mode, the 4th PMD maps the kernel address
> space, which can be shared among all processes (since they all need
> the same kernel mappings.
>
> Xen, however, does not allow guests to have the kernel pmd shared
> between page tables, so parameterize pgtable.c to allow both modes of
> operation.
Acked-by: Ingo Molnar <mingo@xxxxxxx>
Ingo
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