linux-kernel - Re: [RFC] x86: Disable traditional FPU instructions too

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Message-ID: <alpine.LNX.2.00.1401271742300.14101@pobox.suse.cz>
Date:	Mon, 27 Jan 2014 17:43:51 +0100 (CET)
From:	Jiri Kosina <jkosina@...e.cz>
To:	"H. Peter Anvin" <hpa@...or.com>
cc:	Borislav Petkov <bp@...en8.de>, Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Michael Matz <matz@...e.de>, Michal Hocko <mhocko@...e.cz>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [RFC] x86: Disable traditional FPU instructions too

On Mon, 27 Jan 2014, H. Peter Anvin wrote:

> I don't think it'd hurt... although I think the above pretty much
> requires that the code contain actual floating-point types to ever be
> generated.  

Unfortunately using float-typed constants (such as 1EexpL) are enough for 
this to happen.

-- 
Jiri Kosina
SUSE Labs
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