lkml.org 
[lkml]   [2010]   [Jul]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v4 5/6] KVM: MMU: combine guest pte read between walk and pte prefetch


Avi Kivity wrote:

>
> Note: I think we have to check _after_ kvm_mmu_get_page(), otherwise we
> might be checking a page that is not write-protected and can change again.
>
> So the logic needs to be something like
>
> for_each_shadow_entry:
> if (!last_level && !present(*spte))
> kvm_mmu_get_page
> verify gpte
> if (last_level)
> mmu_set_spte()
>

Agree! Will do it.


\
 
 \ /
  Last update: 2010-07-05 11:37    [W:0.085 / U:0.228 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site