[RFC] ARM DMA mapping TODO, v1

Catalin Marinas catalin.marinas at arm.com
Thu Apr 28 04:27:39 EDT 2011

On Thu, 2011-04-28 at 01:15 +0100, Valdis.Kletnieks at vt.edu wrote:
> 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.

By security I was referring to TrustZone extensions. IOW, unpredictable
in normal (non-secure) world should not cause data corruption in the
secure world.


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