Page Directory and Page Tables
Figure 12-5 on page 221 illustrates the relationship of the Page Directory, the Page Tables and the pages of information. CR3 identifies the base physical address of the Page Directory. The Paging Unit's Page Directory contains 1024d 32-bit entries (Page Directory Entries, or PDEs), each of which contains either the base address of a Page Table in memory, or its location on a mass storage device. Each entry contains a Page Table Present bit that indicates if the respective Page Table is currently present in memory.
Each Page Table, in turn, ...
Get The Unabridged Pentium 4 IA32 Processor Genealogy now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
