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Date: Tue, 3 May 2016 23:45:35 +0200
From: Borislav Petkov <bp@alien8.de>
To: Dave Hansen <dave.hansen@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>, linux-kernel@vger.kernel.org,
        x86@kernel.org, Andy Lutomirski <luto@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>, "H. Peter Anvin" <hpa@zytor.com>,
        Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH] [RFC] x86: work around MPX Erratum
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On Tue, May 03, 2016 at 02:28:18PM -0700, Dave Hansen wrote:
> Generally, I'm not sure we need the no$foo options at all.  There's
> always "clearcpuid=" which does the same thing.  It just requires you to
> go look up the X86_FEATURE_* bit first.

Yeah, the "no-" things are all chicken bits which we should get rid of
at some point anyway.

> What do you mean by disable? Have qemu error out if MPX and SMEP
> aren't disabled in concert with each other?

Yap.

-- 
Regards/Gruss,
    Boris.

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