Re: [PATCH 00/11] x86: Supervisor Mode Access Prevention

[H. Peter Anvin]

On 09/22/2012 04:32 AM, Ingo Molnar wrote:
> 
> * H. Peter Anvin <hpa@xxxxxxxxxxxxxxx> wrote:
> 
>> On 09/21/2012 03:08 PM, Dave Jones wrote:
>>>
>>> Perhaps add a printk somewhere to show that it's actually been enabled maybe ?
>>>
>>> Also, would it be feasible to add something like we have for test_nx ?
>>> If this feature regresses in some way in the future, I suspect we'd like
>>> to know about it sooner rather than later.
>>
>> Good idea... should add this both for SMEP and SMAP.
> 
> Very much agreed - these exploit preventation hardware features 
> are really useful, and it's good to inform the user that they 
> are active.
> 

I was thinking about this, do you think a printk would be better, or a
new field in /proc/cpuinfo?

	-hpa
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