Date: Wed, 27 Jan 2010 18:33:22 +0000 (UTC) From: Alan Cox <alc@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/i386/i386 pmap.c Message-ID: <201001271833.o0RIXYRg097039@repoman.freebsd.org>
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alc 2010-01-27 18:33:22 UTC
FreeBSD src repository
Modified files:
sys/i386/i386 pmap.c
Log:
SVN rev 203085 on 2010-01-27 18:33:22Z by alc
Optimize pmap_demote_pde() by using the new KPTmap to access a kernel
page table page instead of creating a temporary mapping to it.
Set the PG_G bit on the page table entries that implement the KPTmap.
Locore initializes the unused portions of the NKPT kernel page table
pages that it allocates to zero. So, pmap_bootstrap() needn't zero
the page table entries referenced by CMAP1 and CMAP3.
Simplify pmap_set_pg().
MFC after: 10 days
Revision Changes Path
1.660 +16 -22 src/sys/i386/i386/pmap.c
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