Date: Sat, 18 Jan 2014 11:42:31 +0100
From: Borislav Petkov <bp@alien8.de>
To: Pavel Machek <pavel@ucw.cz>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
        Henrique de Moraes Holschuh <hmh@hmh.eng.br>, X86 ML <x86@kernel.org>,
        LKML <linux-kernel@vger.kernel.org>, Kim Naru <kim.naru@amd.com>,
        Aravind Gopalakrishnan <aravind.gopalakrishnan@amd.com>,
        Sherry Hurwitz <sherry.hurwitz@amd.com>
Subject: Re: [PATCH] x86, CPU, AMD: Add workaround for family 16h, erratum 793
Message-ID: <20140118104231.GA15466@pd.tnic>
References: <20140114115547.GA29887@pd.tnic>
 <52D55468.6000000@zytor.com>
 <20140114153534.GE29865@pd.tnic>
 <20140114162722.GF29865@pd.tnic>
 <20140117222806.GB13930@amd.pavel.ucw.cz>
 <20140117225013.GE14649@pd.tnic>
 <52D9B408.4020007@zytor.com>
 <20140118002926.GA22185@amd.pavel.ucw.cz>
 <52D9D6FC.7050100@zytor.com>
 <20140118020155.GA24158@amd.pavel.ucw.cz>
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Sender: linux-kernel-owner@vger.kernel.org

On Sat, Jan 18, 2014 at 03:01:55AM +0100, Pavel Machek wrote:
> I'd say that proposed "your bios has a bug"

You can always unconditionally print "your bios has a bug". Just like
that. Without even looking.

So no, I don't think adding a warning for this one case makes sense.

If you want to add a warning yourself, you can put it in rc.local using
userspace goodies like msr-tools. With them you can toggle that bit ad
absurdum - no need for the kernel except msr.ko.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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