TLBs do need to be explicitly managed by software, I don't know any CPU architecture where this is not the case. It would probably be quite feasible to do actu

TLBs do need to be explicitly managed by software, I don't know any CPU architecture where this is not the case. It would probably be quite feasible to do actually with an architecture that has a simple page table like a single physically contiguous hash table, but x86 style arbitrary radix page tables seem like they would be prohibitive to snoop.