linux/arch/x86/kernel/cpu
Tony Luck dad1743e59 x86/mce: Only restart instruction after machine check recovery if it is safe
Section 15.3.1.2 of the software developer manual has this to say about the
RIPV bit in the IA32_MCG_STATUS register:

  RIPV (restart IP valid) flag, bit 0 — Indicates (when set) that program
  execution can be restarted reliably at the instruction pointed to by the
  instruction pointer pushed on the stack when the machine-check exception
  is generated.  When clear, the program cannot be reliably restarted at
  the pushed instruction pointer.

We need to save the state of this bit in do_machine_check() and use it
in mce_notify_process() to force a signal; even if memory_failure() says
it made a complete recovery ... e.g. replaced a clean LRU page.

Acked-by: Borislav Petkov <bp@amd64.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-05-14 15:07:48 -07:00
..
mcheck x86/mce: Only restart instruction after machine check recovery if it is safe 2012-05-14 15:07:48 -07:00
mtrr Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-29 18:12:23 -07:00
.gitignore
amd.c x86/amd: Re-enable CPU topology extensions in case BIOS has disabled it 2012-04-27 16:43:09 +02:00
bugs_64.c
bugs.c
centaur.c x86, centaur: Enable cx8 for VIA Eden too 2011-12-15 08:04:42 -08:00
common.c x86/platform: Remove incorrect error message in x86_default_fixup_cpu_id() 2012-04-16 20:43:43 +02:00
cpu.h x86, CPU: Drop superfluous get_cpu_cap() prototype 2011-12-09 08:00:53 +01:00
cyrix.c
hypervisor.c
intel_cacheinfo.c x86, intel_cacheinfo: Fix error return code in amd_set_l3_disable_slot() 2012-04-19 18:30:28 +02:00
intel.c x86: Simplify code by removing a !SMP #ifdefs from 'struct cpuinfo_x86' 2011-12-21 09:25:09 +01:00
Makefile Add driver auto probing for x86 features v4 2012-01-26 16:44:41 -08:00
match.c x86/cpu: Clean up modalias feature matching 2012-02-13 15:24:26 -08:00
mkcapflags.pl
mshyperv.c
perf_event_amd_ibs.c perf, x86: Force IBS LVT offset assignment for family 10h 2011-12-05 09:32:59 +01:00
perf_event_amd.c perf: Adding sysfs group format attribute for pmu device 2012-03-16 14:06:06 -03:00
perf_event_intel_ds.c perf/x86: Add LBR software filter support for Intel CPUs 2012-03-05 14:55:42 +01:00
perf_event_intel_lbr.c perf/x86: Add LBR software filter support for Intel CPUs 2012-03-05 14:55:42 +01:00
perf_event_intel.c perf: Adding sysfs group format attribute for pmu device 2012-03-16 14:06:06 -03:00
perf_event_p4.c perf/x86/p4: Add format attributes 2012-04-03 08:33:38 +02:00
perf_event_p6.c perf: Adding sysfs group format attribute for pmu device 2012-03-16 14:06:06 -03:00
perf_event.c Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-31 13:34:04 -07:00
perf_event.h perf: Adding sysfs group format attribute for pmu device 2012-03-16 14:06:06 -03:00
perfctr-watchdog.c
powerflags.c x86: Report cpb and eff_freq_ro flags correctly 2011-12-15 08:14:49 +01:00
proc.c x86: Simplify code by removing a !SMP #ifdefs from 'struct cpuinfo_x86' 2011-12-21 09:25:09 +01:00
rdrand.c
scattered.c X86: Introduce HW-Pstate scattered cpuid feature 2012-01-26 16:49:06 -08:00
sched.c
topology.c
transmeta.c
umc.c
vmware.c