linux-kernel - Re: Sanitize CPU-state when switching tasks (was sanitize CPU-state when switching from virtual-8086 mode to other task)

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Message-ID: <20140110113432.GB12077@pd.tnic>
Date:	Fri, 10 Jan 2014 12:34:32 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	"H. Peter Anvin" <hpa@...or.com>, halfdog <me@...fdog.net>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	the arch/x86 maintainers <x86@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Ben Hutchings <ben@...adent.org.uk>
Subject: Re: Sanitize CPU-state when switching tasks (was sanitize CPU-state
 when switching from virtual-8086 mode to other task)

On Fri, Jan 10, 2014 at 07:16:24PM +0800, Linus Torvalds wrote:
> Also, is there a way to have a "likely not true" version of that
> "static_cpu_has()"? There seems to be no way to make the non-K7/K8
> case

FWIW, this is not only K7/K8 but actually all AMD from family 6 onwards,
which is - practically speaking - all AMD.

-- 
Regards/Gruss,
    Boris.

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