Re: [PATCH v4 5/6] KVM: MMU: combine guest pte read between walkand pte prefetch

[Xiao Guangrong]

Avi Kivity wrote:

>> And this check is not sufficient, since it's only checked if the
>> mapping is zapped or not exist, for other words only when broken this
>> judgment:
>>     is_shadow_present_pte(*sptep)&&  !is_large_pte(*sptep)
>>
>> but if the middle level is present and it's not the large mapping,
>> this check is skipped.
>>    
> 
> 
> Well, in the description, it looked like everything was using small
> pages (in kvm, level=1 means PTE level, we need to change this one
> day).  Please describe again and say exactly when the guest or host uses
> large pages.
> 

Avi, sorry for my poor English, i not mean "everything was using small", i don't
know where cause you confused :-(





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