Re: [PATCH v3 02/15] KVM: MMU: lazily drop large spte

On Wed, Oct 23, 2013 at 09:29:20PM +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 > b

[PATCH v3 02/15] KVM: MMU: lazily drop large spte

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 avoided The idea is from Avi: | As I mentioned before, write-protecti