Re: [PATCH] KVM: x86: Avoid zapping mmio sptes twice for generation wraparound

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Il 03/07/2013 11:05, Gleb Natapov ha scritto:
>>> Yes, the actual operation would be the same as this patch.  You can
>>> rename kvm_mmu_invalidate_mmio_sptes to kvm_arch_memslots_installed, or
>>> something like that.  But it would have to touch all architectures.
>>
>> I tried to avoid introducing x86-centric code into the generic one.
>>
>> If another arch can gain something by such function, I'm willing to
>> touch all arch code.
>>
> Please do. X86 is the most optimized one so it does things other arches
> do not yet. Slot generation update hook sounds generic enough.

Yes, makes sense.  However, this patch is still an improvement because
the current code is too easily mistaken for an off-by-one bug.

Any improvements to the API can go on top.

Paolo
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