Now that you’ve seen how Windows structures the virtual address space, let’s look at how it maps these address spaces to real physical pages. User applications and system code reference virtual addresses. This section starts with a detailed description of 32-bit x86 address translation and continues with a brief description of the differences on the 64-bit IA64 and x64 platforms. In the next section, we’ll describe what happens when such a translation doesn’t resolve to a physical memory address (paging) and explain how Windows manages physical memory via working sets and the page frame database.
x86 Virtual Address Translation
Using data structures the memory manager creates and maintains called page tables, the CPU translates ...