linux/arch/x86/kernel/cpu
Yazen Ghannam ec33838244 x86/mce: Don't disable MCA banks when offlining a CPU on AMD
AMD systems have non-core, shared MCA banks within a die. These banks
are controlled by a master CPU per die. If this CPU is offlined then all
the shared banks are disabled in addition to the CPU's core banks.

Also, Fam17h systems may have SMT enabled. The MCA_CTL register is shared
between SMT thread siblings. If a CPU is offlined then all its sibling's
MCA banks are also disabled.

Extend the existing vendor check to AMD too.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
[ Fix up comment. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20170613162835.30750-8-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-14 07:32:09 +02:00
..
mcheck x86/mce: Don't disable MCA banks when offlining a CPU on AMD 2017-06-14 07:32:09 +02:00
microcode x86/microcode/intel: Clear patch pointer before jettisoning the initrd 2017-06-08 10:03:05 +02:00
mtrr x86/boot/e820: Prefix the E820_* type names with "E820_TYPE_" 2017-01-28 22:55:22 +01:00
.gitignore
amd.c xen: fixes for 4.12-rc0 2017-05-12 10:09:14 -07:00
bugs.c x86: use set_memory.h header 2017-05-08 17:15:13 -07:00
centaur.c Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-05-01 20:51:12 -07:00
common.c x86/cpu: remove hypervisor specific set_cpu_features 2017-05-02 11:14:30 +02:00
cpu.h x86/cpu: Restore MSR_IA32_ENERGY_PERF_BIAS after resume 2015-07-21 07:51:38 +02:00
cyrix.c x86/cpu/cyrix: Add alternative Device ID of Geode GX1 SoC 2017-06-05 08:34:20 +02:00
hypervisor.c x86/cpu: remove hypervisor specific set_cpu_features 2017-05-02 11:14:30 +02:00
intel_cacheinfo.c sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h> 2017-03-02 08:42:31 +01:00
intel_rdt_rdtgroup.c x86/intel_rdt/mba: Add info directory files for Memory Bandwidth Allocation 2017-04-14 16:10:08 +02:00
intel_rdt_schemata.c x86/intel_rdt: Return error for incorrect resource names in schemata 2017-04-20 15:57:59 +02:00
intel_rdt.c x86/intel_rdt: Fix padding when resource is enabled via mount 2017-04-20 15:57:59 +02:00
intel.c x86/arch_prctl: Add ARCH_[GET|SET]_CPUID 2017-03-20 16:10:34 +01:00
Makefile Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-12-22 09:25:45 -08:00
match.c x86/kernel: Audit and remove any unnecessary uses of module.h 2016-07-14 15:06:41 +02:00
mkcapflags.sh x86/cpufeature: Carve out X86_FEATURE_* 2016-01-30 11:22:17 +01:00
mshyperv.c Drivers: hv: Issue explicit EOI when autoeoi is not enabled 2017-04-08 18:07:51 +02:00
perfctr-watchdog.c x86/kernel: Audit and remove any unnecessary uses of module.h 2016-07-14 15:06:41 +02:00
powerflags.c x86/cpu: Add advanced power management bits 2016-03-29 11:12:11 +02:00
proc.c x86/cpu: Drop wp_works_ok member of struct cpuinfo_x86 2017-03-11 14:30:24 +01:00
rdrand.c x86, asm: Use CC_SET()/CC_OUT() and static_cpu_has() in archrandom.h 2016-06-08 12:41:20 -07:00
scattered.c x86/intel_rdt/mba: Memory bandwith allocation feature detect 2017-04-14 16:10:07 +02:00
topology.c x86/cpu: Convert printk(KERN_<LEVEL> ...) to pr_<level>(...) 2016-02-03 10:30:03 +01:00
transmeta.c Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-03-07 14:42:34 -08:00
umc.c
vmware.c vmware: set cpu capabilities during platform initialization 2017-05-02 11:14:24 +02:00