linux-kernel - Re: [patch 1/2] crypto: padlock-aes: work around Nano CPU errata in ECB mode

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Message-ID: <20090614204929.GA590@Chamillionaire.breakpoint.cc>
Date:	Sun, 14 Jun 2009 22:49:29 +0200
From:	Sebastian Andrzej Siewior <sebastian@...akpoint.cc>
To:	Chuck Ebbert <cebbert@...hat.com>
Cc:	Herbert Xu <herbert@...dor.apana.org.au>,
	Harald Welte <HaraldWelte@...tech.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [patch 1/2] crypto: padlock-aes: work around Nano CPU errata
	in ECB mode

* Chuck Ebbert | 2009-06-10 15:11:22 [-0400]:

>From: Chuck Ebbert <cebbert@...hat.com>
>crypto: padlock-aes: work around Nano CPU errata in ECB mode
>
>The VIA Nano processor has a bug that makes it prefetch extra data
>during encryption operations, causing spurious page faults. Extend
>existing workarounds for ECB mode to copy the data to an temporary
>buffer to avoid the problem.
>
>Acked-by: HaraldWelte <HaraldWelte@...tech.com>
>Signed-off-by: Chuck Ebbert <cebbert@...hat.com>
>---
>Against cryptodev.git as requested.

thx for the rebase. Those two patches are a nice cleanup of the ifdef
mess I've made earlier. 

Sebastian
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