Date: Mon, 06 Oct 2003 11:13:41 -0400 (EDT) From: John Baldwin <jhb@FreeBSD.org> To: Peter Wemm <peter@wemm.org> Cc: cvs-all@FreeBSD.org Subject: Re: 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 Message-ID: <XFMail.20031006111341.jhb@FreeBSD.org> In-Reply-To: <20031004064605.B783C2A7EA@canning.wemm.org>
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On 04-Oct-2003 Peter Wemm wrote: > 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. So does KERNBASE + foo still map to PA foo for the lower 1 meg? -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
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