PTE and PDE

PDE：Page Directory Entry

PTE: Page Table Entry (a record of the actual physical address of the virtual address)

KernelDebug exemplified by:

 

kd> !pte 80572000
                 VA 80572000
PDE at C0300804         PTE at C02015C8
contains 0003D163       contains 00572121
pfn 3d    -G-DA--KWEV   pfn 572   -G--A--KREV

 

View of PDE and PTE 80.572 million, 80.572 million can be seen in the virtual address corresponding PTE is C02015C8, save it records real physical memory, 00,572,121 (of course, after the 12bit to be cleared)

80572000 virtual read address, reads the physical address equal to 00,572,000.

Reproduced in: https: //www.cnblogs.com/fanzi2009/archive/2010/11/16/1878588.html