On 07/03/2010 04:03 PM, Xiao Guangrong wrote:
Avi Kivity wrote:
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.
Oh, I see what you mean.
Regarding the patch, is it possible just to move the check before,
instead of adding the 'check' variable?
Umm, if we move the check before the judgment, it'll check every level,
actually, only the opened mapping and the laster level need checked, so
for the performance reason, maybe it's better to keep two check-point.
What exactly are the conditions when you want to check?
Perhaps we do need to check every level. A write to a PDE (or higher
level) will clear the corresponding spte, but a fault immediately
afterwards can re-establish the spte to point to the new page.
--
error compiling committee.c: too many arguments to function
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