linux-kernel - Re: [tip:x86/pti] x86/cpu: Remove the CONFIG_X86_PPRO

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Message-ID: <20180320125102.GT4043@hirez.programming.kicks-ass.net>
Date:   Tue, 20 Mar 2018 13:51:02 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     mulix@...ix.org, thomas.lendacky@....com, dwmw2@...radead.org,
        mingo@...nel.org, torvalds@...ux-foundation.org, joro@...tes.org,
        linux-kernel@...r.kernel.org, hch@....de, konrad.wilk@...cle.com,
        jdmason@...zu.us, tglx@...utronix.de, hpa@...or.com
Cc:     linux-tip-commits@...r.kernel.org
Subject: Re: [tip:x86/pti] x86/cpu: Remove the CONFIG_X86_PPRO_FENCE=y quirk

On Tue, Mar 20, 2018 at 04:04:49AM -0700, tip-bot for Christoph Hellwig wrote:

> x86/cpu: Remove the CONFIG_X86_PPRO_FENCE=y quirk
> 
> There were only a few Pentium Pro multiprocessors systems where this
> errata applied. They are more than 20 years old now, and we've slowly
> dropped places which put the workarounds in and discouraged anyone
> from enabling the workaround.
> 
> Get rid of it for good.

Hoorah!! x86 is back to pure TSO.