linux-kernel - Re: [PATCH] x86/Kconfig: make X86

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Message-ID: <79c4bc05-0482-3ce7-0f93-544977e466dc@zytor.com>
Date:   Mon, 9 Mar 2020 17:25:59 -0700
From:   "H. Peter Anvin" <hpa@...or.com>
To:     Borislav Petkov <bp@...en8.de>,
        Tony W Wang-oc <TonyWWang-oc@...oxin.com>
Cc:     tglx@...utronix.de, mingo@...hat.com, x86@...nel.org,
        linux-kernel@...r.kernel.org, DavidWang@...oxin.com,
        CooperYan@...oxin.com, QiyuanWang@...oxin.com,
        HerryYang@...oxin.com, CobeChen@...oxin.com
Subject: Re: [PATCH] x86/Kconfig: make X86_UMIP to cover any X86 CPU

On 2020-03-09 13:36, Borislav Petkov wrote:
> 
> If you're going to do that, is there even any use for that config option
> at all?
> 
> AFAICT, it adds ~1K to kernel text so we might just as well remove the
> ifdeffery completely. The code ends up built in in 99% of the cases
> anyway...
> 

Perhaps the super-tiny-embedded kernel guys care? Otherwise it seems
pointless.

In general, once INTEL and AMD is enabled, it is just a matter of time
until other (still existent) vendors add those features, at least for
core features.

	-hpa