The patch titled
xen: don't bother trying to set cr4
has been added to the -mm tree. Its filename is
xen-dont-bother-trying-to-set-cr4.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: xen: don't bother trying to set cr4
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Xen ignores all updates to cr4, and some versions will kill the domain if
you try to change its value. Just ignore all changes.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xxxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/i386/xen/enlighten.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN arch/i386/xen/enlighten.c~xen-dont-bother-trying-to-set-cr4 arch/i386/xen/enlighten.c
--- a/arch/i386/xen/enlighten.c~xen-dont-bother-trying-to-set-cr4
+++ a/arch/i386/xen/enlighten.c
@@ -623,8 +623,8 @@ static unsigned long xen_read_cr2_direct
static void xen_write_cr4(unsigned long cr4)
{
- /* never allow TSC to be disabled */
- native_write_cr4(cr4 & ~X86_CR4_TSD);
+ /* Just ignore cr4 changes; Xen doesn't allow us to do
+ anything anyway. */
}
static unsigned long xen_read_cr3(void)
_
Patches currently in -mm which might be from jeremy@xxxxxxxx are
xen-dont-bother-trying-to-set-cr4.patch
git-netdev-all.patch
enforce-noreplace-smp-in-alternative_instructions.patch
maps2-uninline-some-functions-in-the-page-walker.patch
maps2-eliminate-the-pmd_walker-struct-in-the-page-walker.patch
maps2-remove-vma-from-args-in-the-page-walker.patch
maps2-propagate-errors-from-callback-in-page-walker.patch
maps2-add-callbacks-for-each-level-to-page-walker.patch
maps2-move-the-page-walker-code-to-lib.patch
maps2-simplify-interdependence-of-proc-pid-maps-and-smaps.patch
maps2-move-clear_refs-code-to-task_mmuc.patch
maps2-regroup-task_mmu-by-interface.patch
maps2-make-proc-pid-smaps-optional-under-config_embedded.patch
maps2-make-proc-pid-clear_refs-option-under-config_embedded.patch
maps2-add-proc-pid-pagemap-interface.patch
maps2-add-proc-kpagemap-interface.patch
fix-the-softlockup-watchdog-to-actually-work.patch
argv_split-allow-argv_split-to-handle-null-pointer-in-argcp-parameter-gracefully.patch
core_pattern-ignore-rlimit_core-if-core_pattern-is-a-pipe.patch
core_pattern-ignore-rlimit_core-if-core_pattern-is-a-pipe-fix.patch
core_pattern-allow-passing-of-arguments-to-user-mode-helper-when-core_pattern-is-a-pipe.patch
core_pattern-fix-up-a-few-miscellaneous-bugs.patch
core_pattern-fix-up-a-few-miscellaneous-bugs-fix.patch
add-missing-newlines-to-some-uses-of-dev_level-messages.patch
-
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