Re: [PATCH 1/2] x86: fix keeping track of AMD C1E

[H. Peter Anvin]

On 07/16/2010 12:22 AM, Borislav Petkov wrote:
>>
>> No, the difference between using a separate variable and the CPU feature 
>> bit is that CPU feature bit is ANDed across all CPUs, whereas this 
>> variable is set if it is set on *any* CPU.
> 
> ... and that's ok because the MSR bits get set on all cores after BIOS
> turns on C1E. Let me verify this though.
> 

Is there any reason for the OR behavior?  Otherwise, it's just plain
wrong...

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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