Re: [RFC 08/11] x86/mm: Add nopcid to turn off PCID

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On Mon, Jun 5, 2017 at 8:22 PM, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:
> Andy Lutomirski <luto@xxxxxxxxxx> writes:
>
>> The parameter is only present on x86_64 systems to save a few bytes,
>> as PCID is always disabled on x86_32.
>
> Seems redundant with clearcpuid.
>

It is.  OTOH, there are lots of noxyz options, and they're easier to
type and to remember.  Borislav?  Sometime I wonder whether we should
autogenerate noxyz options from the capflags table.

> -Andi

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