From: "H. Peter Anvin" <hpa@zytor.com>
To: Borislav Petkov <bp@alien8.de>,
Tony W Wang-oc <TonyWWang-oc@zhaoxin.com>
Cc: tglx@linutronix.de, mingo@redhat.com, x86@kernel.org,
linux-kernel@vger.kernel.org, DavidWang@zhaoxin.com,
CooperYan@zhaoxin.com, QiyuanWang@zhaoxin.com,
HerryYang@zhaoxin.com, CobeChen@zhaoxin.com
Subject: Re: [PATCH] x86/Kconfig: make X86_UMIP to cover any X86 CPU
Date: Mon, 9 Mar 2020 17:25:59 -0700 [thread overview]
Message-ID: <79c4bc05-0482-3ce7-0f93-544977e466dc@zytor.com> (raw)
In-Reply-To: <20200309203632.GB9002@zn.tnic>
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
next prev parent reply other threads:[~2020-03-10 0:26 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-09 6:06 Tony W Wang-oc
2020-03-09 20:36 ` Borislav Petkov
2020-03-10 0:25 ` H. Peter Anvin [this message]
2020-03-10 7:24 ` Tony W Wang-oc
2020-03-10 9:09 ` Borislav Petkov
2020-03-10 10:09 ` Tony W Wang-oc
2020-03-10 9:08 ` Borislav Petkov
2020-03-10 9:15 ` [tip: x86/cpu] x86/Kconfig: Drop vendor dependency for X86_UMIP tip-bot2 for Tony W Wang-oc
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