Date: Sat, 25 Jan 2014 06:58:41 +0000 (UTC) From: Peter Grehan <grehan@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r261148 - head/sys/amd64/amd64 Message-ID: <201401250658.s0P6wfDI065595@svn.freebsd.org>
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Author: grehan Date: Sat Jan 25 06:58:41 2014 New Revision: 261148 URL: http://svnweb.freebsd.org/changeset/base/261148 Log: Change RWX to XWR in comments to match intent and bit patterns in discussion of valid EPT pte protections. Discussed with: neel MFC after: 3 days Modified: head/sys/amd64/amd64/pmap.c Modified: head/sys/amd64/amd64/pmap.c ============================================================================== --- head/sys/amd64/amd64/pmap.c Sat Jan 25 06:54:04 2014 (r261147) +++ head/sys/amd64/amd64/pmap.c Sat Jan 25 06:58:41 2014 (r261148) @@ -5575,7 +5575,7 @@ safe_to_clear_referenced(pmap_t pmap, pt KASSERT(pmap->pm_type == PT_EPT, ("invalid pm_type %d", pmap->pm_type)); /* - * RWX = 010 or 110 will cause an unconditional EPT misconfiguration + * XWR = 010 or 110 will cause an unconditional EPT misconfiguration * so we don't let the referenced (aka EPT_PG_READ) bit to be cleared * if the EPT_PG_WRITE bit is set. */ @@ -5583,7 +5583,7 @@ safe_to_clear_referenced(pmap_t pmap, pt return (FALSE); /* - * RWX = 100 is allowed only if the PMAP_SUPPORTS_EXEC_ONLY is set. + * XWR = 100 is allowed only if the PMAP_SUPPORTS_EXEC_ONLY is set. */ if ((pte & EPT_PG_EXECUTE) == 0 || ((pmap->pm_flags & PMAP_SUPPORTS_EXEC_ONLY) != 0))
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