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ee1b5b165c
linux/arch/x86/kernel/cpu
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Bryan O'Donoghue ee1b5b165c x86/intel/quark: Switch off CR4.PGE so TLB flush uses CR3 instead 
Quark x1000 advertises PGE via the standard CPUID method
PGE bits exist in Quark X1000's PTEs. In order to flush
an individual PTE it is necessary to reload CR3 irrespective
of the PTE.PGE bit.

See Quark Core_DevMan_001.pdf section 6.4.11

This bug was fixed in Galileo kernels, unfixed vanilla kernels are expected to
crash and burn on this platform.

Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Cc: Borislav Petkov <bp@alien8.de>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/1411514784-14885-1-git-send-email-pure.logic@nexus-software.ie
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-09-24 15:06:15 +02:00
..
mcheck arch/x86: replace strict_strto calls 2014-08-08 15:57:28 -07:00
microcode x86, microcode: Add a disable chicken bit 2014-05-20 20:21:27 -07:00
mtrr mm, x86: Account for TLB flushes only when debugging 2014-01-25 09:10:41 +01:00
.gitignore
amd.c Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-08-04 17:15:45 -07:00
bugs_64.c
bugs.c x86: Get rid of ->hard_math and all the FPU asm fu 2013-06-06 14:32:04 -07:00
centaur.c x86: Remove CONFIG_X86_OOSTORE 2014-03-11 10:16:18 -07:00
common.c Merge branch 'x86-xsave-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-08-13 18:20:04 -06:00
cpu.h x86/cpu: Track legacy CPU model data only on 32-bit kernels 2013-10-26 13:34:39 +02:00
cyrix.c x86: Delete non-required instances of include <linux/init.h> 2014-01-06 21:25:18 -08:00
hypervisor.c x86: Correctly detect hypervisor 2013-08-05 06:35:33 -07:00
intel_cacheinfo.c arch/x86: replace strict_strto calls 2014-08-08 15:57:28 -07:00
intel.c x86/intel/quark: Switch off CR4.PGE so TLB flush uses CR3 instead 2014-09-24 15:06:15 +02:00
Makefile Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-01-20 12:07:54 -08:00
match.c x86: align x86 arch with generic CPU modalias handling 2014-02-18 12:45:38 -08:00
mkcapflags.sh x86/cpufeature: Add bug flags to /proc/cpuinfo 2014-07-14 12:21:39 -07:00
mshyperv.c x86, irq, pic: Probe for legacy PIC and set legacy_pic appropriately 2014-04-14 11:49:55 -07:00
perf_event_amd_ibs.c kprobes, x86: Use NOKPROBE_SYMBOL() instead of __kprobes annotation 2014-04-24 10:26:38 +02:00
perf_event_amd_iommu.c perf/x86/amd: Do not print an error when the device is not present 2013-07-05 08:27:15 +02:00
perf_event_amd_iommu.h perf/x86/amd: AMD IOMMU Performance Counter PERF uncore PMU implementation 2013-06-19 13:04:53 +02:00
perf_event_amd_uncore.c perf/x86/amd: Try to fix some mem allocation failure handling 2014-07-16 13:31:06 +02:00
perf_event_amd.c perf: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node() 2013-09-02 08:42:49 +02:00
perf_event_intel_ds.c perf/x86/intel: Avoid spamming kernel log for BTS buffer failure 2014-07-16 13:31:30 +02:00
perf_event_intel_lbr.c perf/x86: Add conditional branch filtering support 2014-06-05 12:30:23 +02:00
perf_event_intel_rapl.c perf/x86: Fix RAPL rdmsrl_safe() usage 2014-04-24 08:12:41 +02:00
perf_event_intel_uncore.c PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
perf_event_intel_uncore.h perf/x86/uncore: add hrtimer to SNB uncore IMC PMU 2014-02-21 21:49:08 +01:00
perf_event_intel.c perf/x86/intel: Protect LBR and extra_regs against KVM lying 2014-07-16 13:18:43 +02:00
perf_event_knc.c x86: Constify a few items 2013-03-11 15:11:03 +01:00
perf_event_p4.c perf/x86/p4: Block PMIs on init to prevent a stream of unkown NMIs 2014-02-09 13:20:35 +01:00
perf_event_p6.c perf/x86/intel/p6: Add userspace RDPMC quirk for PPro 2014-02-09 13:08:24 +01:00
perf_event.c perf/x86/intel: Protect LBR and extra_regs against KVM lying 2014-07-16 13:18:43 +02:00
perf_event.h perf/x86/intel: Protect LBR and extra_regs against KVM lying 2014-07-16 13:18:43 +02:00
perfctr-watchdog.c
powerflags.c update AMD powerflags comments 2013-05-28 12:02:10 +02:00
proc.c x86/cpufeature: Add bug flags to /proc/cpuinfo 2014-07-14 12:21:39 -07:00
rdrand.c x86, rdrand: When nordrand is specified, disable RDSEED as well 2014-05-11 20:25:20 -07:00
scattered.c x86/xsaves: Detect xsaves/xrstors feature 2014-05-29 14:24:28 -07:00
topology.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
transmeta.c x86: Delete non-required instances of include <linux/init.h> 2014-01-06 21:25:18 -08:00
umc.c x86: Delete non-required instances of include <linux/init.h> 2014-01-06 21:25:18 -08:00
vmware.c x86: Correctly detect hypervisor 2013-08-05 06:35:33 -07:00