android_kernel_xiaomi_sm7250/arch
Andi Kleen 8f4e956b31 x86: Stop MCEs and NMIs during code patching
When a machine check or NMI occurs while multiple byte code is patched
the CPU could theoretically see an inconsistent instruction and crash.
Prevent this by temporarily disabling MCEs and returning early in the
NMI handler.

Based on discussion with Mathieu Desnoyers.

Cc: Mathieu Desnoyers <compudj@krystal.dyndns.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:37 -07:00
..
alpha some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
arm clockevents: fix resume logic 2007-07-21 17:49:15 -07:00
arm26 mm: Remove slab destructors from kmem_cache_create(). 2007-07-20 10:11:58 +09:00
avr32 mm: fault feedback #2 2007-07-19 10:04:41 -07:00
blackfin some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
cris Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-07-19 14:28:19 -07:00
frv FRV: work around a possible compiler bug 2007-07-19 10:04:50 -07:00
h8300 PTRACE_POKEDATA consolidation 2007-07-17 10:23:03 -07:00
i386 x86: Stop MCEs and NMIs during code patching 2007-07-22 11:03:37 -07:00
ia64 revert "PIE randomization" 2007-07-21 17:49:14 -07:00
m32r Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6 2007-07-19 14:24:57 -07:00
m68k m68k: exclude more unbuildable drivers 2007-07-20 08:24:49 -07:00
m68knommu m68knommu: reformat show_cpuinfo() 2007-07-20 08:44:20 -07:00
mips [MIPS] User stack pointer randomisation 2007-07-20 18:57:40 +01:00
parisc define new percpu interface for shared data 2007-07-19 10:04:44 -07:00
powerpc Fix ppc64 mismerge 2007-07-22 10:41:27 -07:00
ppc Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6 2007-07-19 14:24:57 -07:00
s390 s390: Put allocated ELF notes in read-only data segment 2007-07-19 10:04:47 -07:00
sh clockevents: fix resume logic 2007-07-21 17:49:15 -07:00
sh64 sh64: Flag sh64_get_page() as __init_refok. 2007-07-20 17:46:42 +09:00
sparc [SPARC32]: Make PAGE_SHARED a read-mostly variable. 2007-07-21 19:20:34 -07:00
sparc64 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2007-07-21 20:38:51 -07:00
um fallout from kbuild changes 2007-07-19 18:37:54 -07:00
v850 PTRACE_POKEDATA consolidation 2007-07-17 10:23:03 -07:00
x86_64 x86: Stop MCEs and NMIs during code patching 2007-07-22 11:03:37 -07:00
xtensa Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-07-19 14:28:19 -07:00