Re: VMI and kmap_atomic_pte paravirt_op

From: Alok Kataria
Date: Thu Feb 25 2010 - 15:32:16 EST


Hi Ian,

On Thu, 2010-02-25 at 11:52 -0800, Ian Campbell wrote:
> Hi Alok,
>
> How critical is the vmi_kmap_atomic_pte pv_mmu_op hook to VMI? Is it
> required for correct functionality or is it simply an optimisation?
>
> We think we may be able to do away with the Xen version of the hook and
> if VMI (which is deprecated) can live without it and you agree then I'll
> cook up a patch to remove it altogether.

As Jeremy suggests we will be fine with disabling high ptes for VMI.
Thanks for doing this.

Alok
>
> Thanks,
> Ian.
>
>

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