Hello All, I was looking at the TODO list on KVM wiki. Here are two TODO I could not understand at all. 1. O(1) write protection by protecting the PML4Es, then on demand PDPTEs, PDEs, and PTEs 2. O(1) mmu invalidation using a generation number what is MMU invalidation? Why is it needed? Could someone please explain a bit? any pointers/url etc would be very nice Thanks and Regards, Prasad -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ