linux-kernel - Re: [PATCH] x86, msr: Better document AMD "tweak MSRs", rename MSR_F15H_IC

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Date:   Tue, 25 Apr 2017 13:59:48 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Denys Vlasenko <dvlasenk@...hat.com>
Cc:     Ingo Molnar <mingo@...hat.com>, Andy Lutomirski <luto@...nel.org>,
        Brian Gerst <brgerst@...il.com>,
        Peter Zijlstra <peterz@...radead.org>,
        "H. Peter Anvin" <hpa@...ux.intel.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86, msr: Better document AMD "tweak MSRs", rename
 MSR_F15H_IC_CFG

On Tue, Apr 25, 2017 at 01:45:41PM +0200, Denys Vlasenko wrote:
> Before this patch, we have a define for MSR 0xc0011021: MSR_F15H_IC_CFG.
> But it exists starting from K8, so it's not really a Fam15h MSR only.
> 
> Lat's call it MSR_AMD64_IC_CFG.

Except that we name only those MSRs with "AMD64" which are
architectural. See "Appendix A MSR Cross-Reference" in APM vol 2.

And the ones you want to rename are not and there is no guarantee about
anything wrt to those. So no, I'd prefer if those remained per-family as
it is now.

-- 
Regards/Gruss,
    Boris.

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