From mboxrd@z Thu Jan 1 00:00:00 1970 From: Valdis.Kletnieks@vt.edu (Valdis.Kletnieks at vt.edu) Date: Wed, 27 Apr 2011 20:15:29 -0400 Subject: [RFC] ARM DMA mapping TODO, v1 In-Reply-To: Your message of "Wed, 27 Apr 2011 12:08:28 BST." <1303902508.15101.21.camel@e102109-lin.cambridge.arm.com> References: <201104212129.17013.arnd@arndb.de> <201104271243.16868.arnd@arndb.de> <1303902508.15101.21.camel@e102109-lin.cambridge.arm.com> Message-ID: <11431.1303949729@localhost> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, 27 Apr 2011 12:08:28 BST, Catalin Marinas said: > The current version of the ARM ARM says "unpredictable". But this > general definition of "unpredictable" does not allow it to deadlock > (hardware) or have security implications. It is however allowed to > corrupt data. Not allowed to have security implications, but is allowed to corrupt data. *boggle* :) (The problem being, of course, that if the attacker is able to predict/control what gets corrupted, it can easily end up leveraged into a security implication.) -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 227 bytes Desc: not available URL: