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

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