Re: [PATCH 5/9] KVM: MMU: fask check write-protect for direct mmu

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On Tue, Jul 17, 2012 at 09:53:29PM +0800, Xiao Guangrong wrote:
> If it have no indirect shadow pages we need not protect any gfn,
> this is always true for direct mmu without nested
> 
> Signed-off-by: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxxxxxx>

Xiao,

What is the motivation? Numbers please.

In fact, what case was the original indirect_shadow_pages conditional in
kvm_mmu_pte_write optimizing again?


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