linux-kernel - Re: [PATCH v3 6/6] x86/cpufeature: Blacklist SPEC

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Message-ID: <1516969658.30244.218.camel@infradead.org>
Date:   Fri, 26 Jan 2018 12:27:38 +0000
From:   David Woodhouse <dwmw2@...radead.org>
To:     Yves-Alexis Perez <corsac@...ian.org>, arjan@...ux.intel.com,
        tglx@...utronix.de, karahmed@...zon.de, x86@...nel.org,
        linux-kernel@...r.kernel.org, tim.c.chen@...ux.intel.com,
        bp@...en8.de, peterz@...radead.org, pbonzini@...hat.com,
        ak@...ux.intel.com, torvalds@...ux-foundation.org,
        gregkh@...ux-foundation.org, dave.hansen@...el.com,
        gnomes@...rguk.ukuu.org.uk
Subject: Re: [PATCH v3 6/6] x86/cpufeature: Blacklist SPEC_CTRL on early
 Spectre v2 microcodes

On Fri, 2018-01-26 at 13:16 +0100, Yves-Alexis Perez wrote:
> On Wed, 2018-01-24 at 16:57 +0000, David Woodhouse wrote:
> > We don't refuse to load the affected microcodes; just refuse to use SPEC_CTRL
> > if they're detected.
> 
> Hi David,
> 
> Are we sure those microcodes instability are only related to SPEC_CTRL?

See v4 :)

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