Re: [PATCH 0/2] x86/fred: enable FRED by default

[Sohil Mehta]

On 3/25/2026 9:30 AM, Borislav Petkov wrote:

>>> Because you should not poke at clearing CPUID features unless you know what
>>> you're doing and this cmdline option should not exist at all. But we have it
>>> so...
>>>
>>
>> Well, it is useful for testing code paths for legacy hardware.
> 
> ... which would presume you know what you're doing.
> 
> clearcpuid= is not something you or I or anyone else wants to debug when
> people start clearing random CPUID bits without knowing any better.
> 
> Thus the tainting.
> 

Makes sense. Thanks for the insight.