Yes, the "mapping memory stuff" is the page tables. (The TLB is an internal cache the processor keeps of recently used page table entries, which is mostly inter

Yes, the "mapping memory stuff" is the page tables. (The TLB is an internal cache the processor keeps of recently used page table entries, which is mostly internal to the processor and transparent to the OS, except that the OS needs to remember to issue a special instruction to invalidate the TLB after modifying page tables.)