>>> On 28.06.16 at 10:12, <kaih.li...@gmail.com> wrote:
> From: Kai Huang <kai.hu...@linux.intel.com>
> 
> Below commit introduced a new macro MSR_IA32_FEATURE_CONTROL for
> IA32_FEATURE_CONTROL MSR but it didn't remove old IA32_FEATURE_CONTROL_MSR
> macro. The new one has better naming convention, so remove the old as a
> duplication. Also move the macros of bit definition of IA32_FEATURE_CONTROL 
> MSR
> down to make them together with the new one. The *_MSR* infix is also 
> removed as
> it is pointless.
> 
> commit 5a211704e8813c4890c8ce8dc4189d1dfb35ecd0
> Author: Len Brown <len.br...@intel.com>
> Date:   Fri Apr 8 22:31:47 2016 +0200
> 
>     mwait-idle: prevent SKL-H boot failure when C8+C9+C10 enabled
> 
>     Some SKL-H configurations require "max_cstate=7" to boot.
>     While that is an effective workaround, it disables C10.
> 
>     ......
> 
> Above commit also used SGX_ENABLE (bit 18) in IA32_FEATURE_CONTROL MSR 
> without a
> macro for it. A new macro IA32_FEATURE_CONTROL_SGX_ENABLE is also added for
> better code and future use.
> 
> Relevant code that uses those macros are changed accordingly.
> 
> Signed-off-by: Kai Huang <kai.hu...@linux.intel.com>

Reviewed-by: Jan Beulich <jbeul...@suse.com>


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