linux-kernel - Re: [BUG/PATCH] kernel RNG and its secrets

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Message-ID: <1611407.vmKOV6O1rC@tauon>
Date:	Fri, 10 Apr 2015 16:33:17 +0200
From:	Stephan Mueller <smueller@...onox.de>
To:	mancha security <mancha1@...o.com>
Cc:	Hannes Frederic Sowa <hannes@...essinduktion.org>,
	Daniel Borkmann <daniel@...earbox.net>, tytso@....edu,
	linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org,
	herbert@...dor.apana.org.au, dborkman@...hat.com
Subject: Re: [BUG/PATCH] kernel RNG and its secrets

Am Freitag, 10. April 2015, 14:22:08 schrieb mancha security:

Hi mancha,

>__asm__ __volatile__("": :"r"(p) :"memory")

gcc -O2/3: mov present

clang -O2/3: mov present

==> approach would be good too.

Note, the assembly code does not seem to change whether to use this approach 
or the one I initially tested.


Ciao
Stephan
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