linux-kernel - [PATCH 00/03]: khwrngd (Was: s390: provide hardware randomness from zcrypt card to /dev/random)

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Message-ID: <20140317164842.GB1763@lst.de>
Date:	Mon, 17 Mar 2014 17:48:42 +0100
From:	Torsten Duwe <duwe@....de>
To:	"H. Peter Anvin" <hpa@...or.com>, Theodore Ts'o <tytso@....edu>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Matt Mackall <mpm@...enic.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	Arnd Bergmann <arnd@...db.de>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Satoru Takeuchi <satoru.takeuchi@...il.com>
Cc:	ingo.tuchscherer@...ibm.com, linux-kernel@...r.kernel.org,
	Hans-Georg Markgraf <MGRF@...ibm.com>,
	Gerald Schaefer <gerald.schaefer@...ibm.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Joe Perches <joe@...ches.com>, duwe@....de
Subject: [PATCH 00/03]: khwrngd (Was: s390: provide hardware randomness
	from zcrypt card to /dev/random)

On Thu, Sep 19, 2013 at 08:05:32AM -0500, H. Peter Anvin wrote:
> As I said, the option of doing feed from hwrng directly
> via a kernel thread seems the most logical thing to me,
> assuming you can convince Ted & co.
> rngd doesn't really add much value for a whitened source.

Following up on this on (time flies!) I have moved the code
up into the arch-independent hw_random code and split it into 3
patches. First generate the injection point for true HWRNGs,
then create a thread that makes use of it and finally add
some simple on/off switch. The latter could be replaced with
something far more sophisticated if desired.

	Torsten

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