On Wed, Jan 23, 2013 at 06:05:29PM +0800, Xiao Guangrong wrote: > In order to detecting spte remapping, we can simply check whether the > spte has already been pointing to the pfn even if the spte is not the > last spte, for middle spte is pointing to the kernel pfn which can not > be mapped to userspace
This check is detecting spte overwrite, when a large spte is replaced by pointer to spte table. Can't see why check for different pfn is safe: only 'int level' can differ, and pfn be equivalent, for example. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
