I'm not entirely sure what the point of the multi-mapping is. It says that it means you don't have to do any pointer bitmasking to dereference, but you already

I'm not entirely sure what the point of the multi-mapping is. It says that it means you don't have to do any pointer bitmasking to dereference, but you already have load barriers, which have to at least check to see what phase you are in and possibly do work every time you dereference a pointer, so how much extra latency would doing the bitmask really add? And the problem with the multi-mapping is you will be resolving more virtual addresses, increasing the working set for the TLB. Seems like there could be increased TLB thrashing.