Date: Sat, 27 Feb 2010 18:45:32 +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: <201002271845.o1RIjpCf097732@repoman.freebsd.org>
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alc 2010-02-27 18:45:32 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_7)
sys/i386/i386 pmap.c
Log:
SVN rev 204424 on 2010-02-27 18:45:32Z by alc
MFC r203085
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().
Revision Changes Path
1.594.2.28 +16 -22 src/sys/i386/i386/pmap.c
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