[Xen-devel] Re: [patch 07/26] Xen-paravirt_ops: Allow paravirt backend to choose kernel PMD sharing

[Ingo Molnar <mingo@xxxxxxx>]

* 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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