Messages in this thread |  | | Date | Wed, 6 Feb 2013 22:28:16 -0200 | From | Marcelo Tosatti <> | Subject | Re: [PATCH v3] KVM: MMU: lazily drop large spte |
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On Tue, Feb 05, 2013 at 03:11:09PM +0800, Xiao Guangrong wrote: > Currently, kvm zaps the large spte if write-protected is needed, the later > read can fault on that spte. Actually, we can make the large spte readonly > instead of making them un-present, the page fault caused by read access can > be avoid > > The idea is from Avi: > | As I mentioned before, write-protecting a large spte is a good idea, > | since it moves some work from protect-time to fault-time, so it reduces > | jitter. This removes the need for the return value. > > Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Applied, thanks.
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