Re: [PATCH 3/3] platform/wmi: Expose the raw WDG data in sysfs

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On Tuesday 01 August 2017 23:20:10 Rafael J. Wysocki wrote:
> No evaluation of AML methods from user space, please.
> 
> This is plain dangerous, because you never know what those things do and doing
> that on production systems is just a plain "no".
> 
> You can, however, expose the output of AML methods this way or another,
> for example if they are expected to generate packages of data or similar.
> 
> The interface for that cannot be "evaluate this random method right now and
> give me the result", though.

It is not a random AML method. It is _WDG buffer which wmi.ko already
reads + parse (IIRC only once when doing initialization) and purpose is
to provide copy of this buffer also to userspace. Similarly like
wmi-bmof.ko provides MOF buffer.

-- 
Pali Rohár
pali.rohar@xxxxxxxxx



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