These patches enable Intel Xeon Phi x200 feature to use MONITOR/MWAIT
instruction in ring 3 (userspace) Patches set MSR 0x140 for all logical CPUs.
Then expose it as CPU feature and introduces elf HWCAP capability for x86.
Reference (the solution is temporary MSR definition will be in next SDM 

Check MSR before wrmsrl
Shortened names
Used Word 3 for feature init_scattered_cpuid_features()
Fixed commit messages

Included Daves and Thomas comments

Grzegorz Andrejczuk (4):
  Add R3MWAIT register and bit to msr-info.h
  Add enabling of the R3 MWAIT during boot for KNL
  Add hwcap2 for x86
  Add R3MWAIT to CPU features

 arch/x86/include/asm/cpufeatures.h |  2 ++
 arch/x86/include/asm/elf.h         |  9 +++++++++
 arch/x86/include/asm/msr-index.h   |  5 +++++
 arch/x86/include/uapi/asm/hwcap.h  |  7 +++++++
 arch/x86/kernel/cpu/common.c       |  6 ++++++
 arch/x86/kernel/cpu/intel.c        | 33 +++++++++++++++++++++++++++++++++
 6 files changed, 62 insertions(+)
 create mode 100644 arch/x86/include/uapi/asm/hwcap.h


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