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From: Conrad Meyer <cem@FreeBSD.org>
Date: Thu, 15 Feb 2018 18:19:25 +0000 (UTC)
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Subject: svn commit: r329330 - head/share/man/man9
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Author: cem
Date: Thu Feb 15 18:19:25 2018
New Revision: 329330
URL: https://svnweb.freebsd.org/changeset/base/329330

Log:
  pmap_qenter.9: Clarify that not all arch can map NX
  
  The goal is to use security features when architectures provide them.
  
  Reported by:	kib
  Sponsored by:	Dell EMC Isilon

Modified:
  head/share/man/man9/pmap_qenter.9

Modified: head/share/man/man9/pmap_qenter.9
==============================================================================
--- head/share/man/man9/pmap_qenter.9	Thu Feb 15 18:16:16 2018	(r329329)
+++ head/share/man/man9/pmap_qenter.9	Thu Feb 15 18:19:25 2018	(r329330)
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd February 14, 2018
+.Dd February 15, 2018
 .Dt PMAP_QENTER 9
 .Os
 .Sh NAME
@@ -50,7 +50,8 @@ pointers to wired pages
 and enters each of these pages into the kernel virtual address (KVA) space,
 beginning at the address
 .Fa sva .
-The pages are mapped non-executable.
+The pages are mapped non-executable, if possible.
+(For example, non-PAE i386 has no capability to map pages non-executable.)
 .Pp
 The
 .Fn pmap_qremove