Re: [PATCH 08/12] kvm/svm: cache nested intercepts

From: Avi Kivity
Date: Wed Jul 29 2009 - 09:21:42 EST


On 07/29/2009 04:13 PM, Joerg Roedel wrote:
On Wed, Jul 29, 2009 at 04:13:35PM +0300, Avi Kivity wrote:
I don't see the benefit of this patch. Accessing the cache is just
as expensive as accessing the real vmcb.

The benefit is that we don't have to gup and map the nested vmcb just
for checking who will take the intercept.

Makes sense.

Another reason is that with
this patch the behavior of nested SVM is more aligned to real hardware.

Even more important, please put this in the commit log.

--
error compiling committee.c: too many arguments to function

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