linux-kernel - Re: [PATCH] x86, CPU, AMD: Add workaround for family 16h, erratum 793

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Message-ID: <20140118104231.GA15466@pd.tnic>
Date:	Sat, 18 Jan 2014 11:42:31 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Pavel Machek <pavel@....cz>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	Henrique de Moraes Holschuh <hmh@....eng.br>,
	X86 ML <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org>,
	Kim Naru <kim.naru@....com>,
	Aravind Gopalakrishnan <aravind.gopalakrishnan@....com>,
	Sherry Hurwitz <sherry.hurwitz@....com>
Subject: Re: [PATCH] x86, CPU, AMD: Add workaround for family 16h, erratum 793

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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