title: Does memory address translation need extra access to memory?
body: <p>I've got a question about virtual memory management, more specifically, the address translation.</p>
  
  <p>When an application runs, the CPU receives instructions containing virtual memory addresses, and translates them into physical addresses via the page table.</p>
  
  <p>My question is, since the page table also aside at a memory block, does that means the CPU has to access the memory twice in a single memory-access instruction? If the answer is no, then how does this actually work? Which part did I miss?</p>
  
  <p>Could anyone give me some details about this?</p>