Date: Mon, 22 Aug 2005 07:23:52 +0000 (UTC) From: Alan Cox <alc@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/amd64/amd64 pmap.c Message-ID: <200508220723.j7M7Nq4X011434@repoman.freebsd.org>
next in thread | raw e-mail | index | archive | help
alc 2005-08-22 07:23:52 UTC
FreeBSD src repository
Modified files:
sys/amd64/amd64 pmap.c
Log:
Change pmap_extract() and pmap_extract_and_hold() to use PG_FRAME rather
than ~PDRMASK to extract the physical address of a superpage from a PDE.
The use of ~PDRMASK is problematic if the PDE has PG_NX set. Specifically,
the PG_NX bit will be included in the physical address if ~PDRMASK is used.
Reviewed by: peter
Revision Changes Path
1.524 +6 -2 src/sys/amd64/amd64/pmap.c
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200508220723.j7M7Nq4X011434>