cvs commit: src/sys/conf ldscript.i386 src/sys/i386/i386 bios.c genassym.c locore.s machdep.c mp_machdep.c mpboot.s pmap.c src/sys/i386/include pmap.h vmparam.h

[Peter Wemm]

John Baldwin wrote:
 
> On 01-Oct-2003 Peter Wemm wrote:
> > peter       2003/10/01 16:46:08 PDT

> >   Log:
> >   Commit Bosko's patch to clean up the PSE/PG_G initialization to and
> >   avoid problems with some Pentium 4 cpus and some older PPro/Pentium2
> >   cpus.  There are several problems, some documented in Intel errata.

> What does KERNBASE map to now?  4mb?

Nope.  KERNBASE is unchanged.  What is different now is that the fixed 1MB
offset (pa = 1MB, va = KERNBASE + 1mb) is now 4MB and available via the
KERNLOAD variable.  This becomes 2MB on a PAE configuration kernel.

Cheers,
-Peter
--
Peter Wemm - peter at wemm.org; peter at FreeBSD.org; peter at yahoo-inc.com
"All of this is for nothing if we don't go to the stars" - JMS/B5