Physical Memory Layout:

NOT YET DONE



Virtual Memory Layout:

Page Table Directories, and how they relate to the vm address space
Note: PTDI stands for Page Table Directory Index.

PTDI	Address		pmap.h/param.h	Calculation to locate it in vm space
--------------------------------------------------------------------------------
	FFFFF000	APTD		APTmap + (APTDPTDI * NBPG)
	FFC00000	APTmap		APTDPTDI << PDRSHIFT
3FF	FFC00000	APTDPTDI	#define (NPTEPG-1)
	FFBFFFFF	KERNEND		((KPTDI+NKPDE) << PDRSHIFT) - 1
3FD	FF400000	.
3FC	FF000000	.
3FB	FEC00000	.
3FA	FE800000	.
3F9	FE400000	.
	FE000000	KERNBASE	KPTDI << PDRSHIFT
3F8	FE000000	KPTDI		#define	(APTDPTDI-NKPDE)
	FDFF8000	Sysmap		PTmap + (KPTDI * NBPG)
	FDFF7FF8	APTpde		PTD + (APTDPTDI * sizeof(pde))
	FDFF7FDC	PTDpde		PTD + (PTDPTDI * sizeof(pde))
	FDFF7000	PTD		PTmap + (PTDPTDI * NBPG)
	FDC00000	PTmap		PTDPTDI << PDRSHIFT
3F7	FDC00000	PTDPTDI		#define (KPTDI-1)

$Id: vm_layout.doc,v 1.1 1994/03/30 20:36:36 wollman Exp $