xcp-1.6-updates/xen-4.1.hg

view buildconfigs/select-linux-arch @ 23319:ff523faf2be1

x86/mm: fix mod_l1_entry() return value when encountering r/o MMIO page

While putting together the workaround announced in
http://lists.xen.org/archives/html/xen-devel/2012-06/msg00709.html, I
found that mod_l1_entry(), upon encountering a set bit in
mmio_ro_ranges, would return 1 instead of 0 (the removal of the write
permission is supposed to be entirely transparent to the caller, even
more so to the calling guest).

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>
xen-unstable changeset: 25487:baa85434d0ec
xen-unstable date: Thu Jun 21 11:30:59 2012 +0200
author Jan Beulich <jbeulich@novell.com>
date Mon Jul 09 10:30:16 2012 +0100 (2012-07-09)
parents 419a141ca16d
children
line source
1 #!/bin/sh
3 ME=$(basename $0)
5 if [ $# -lt 1 ] || [ $# -gt 2 ] ; then
6 echo "usage: $ME <linux-build-directory>" 1>&2
7 exit 1;
8 fi
10 LINUX_DIR=$1
12 case ${XEN_TARGET_ARCH} in
13 x86_32|x86_64)
14 if [ -d ${LINUX_DIR}/arch/x86 ] ; then
15 ARCH=x86
16 elif [ "${XEN_TARGET_ARCH}" = "x86_32" ] ; then
17 ARCH=i386
18 else
19 ARCH=x86_64
20 fi
21 ;;
22 *)
23 ARCH=${XEN_TARGET_ARCH}
24 ;;
25 esac
27 echo "$ME: ${ARCH}" 1>&2
28 echo ${ARCH}
30 exit 0