[PATCH v8 07/15] x86/split_lock: Enumerate split lock detection by MSR_IA32_CORE_CAPABILITY

. Otherwise, the feature is not available. The MSR_IA32_CORE_CAPABILITY itself is enumerated by CPUID.(EAX=0x7,ECX=0):EDX[30]. Signed-off-by: Fenghua Yu --- arch/x86/include/asm/cpu.h | 5 ++ arch/x86/include/asm/cpufeatures.h | 1 + arch/x86/kernel/cpu/common.c | 2 + arch/x86

[PATCH v8 15/15] x86/split_lock: Add a sysfs interface to enable/disable split lock detection during run time

: disabled 1: enabled Add an ABI document entry for /sys/devices/system/cpu/split_lock_detect. Signed-off-by: Fenghua Yu --- Not sure if the justification for the sysfs knob is valid. If not, this patch could be removed from this patch set. .../ABI/testing/sysfs-devices-system-cpu | 22