From mboxrd@z Thu Jan 1 00:00:00 1970 From: Will Deacon Subject: Re: [PATCH 3/6] iommu/arm-smmu: Support buggy implementations where all config accesses are secure Date: Thu, 31 Oct 2013 00:48:44 +0000 Message-ID: <20131031004844.GC28613@mudshark.cambridge.arm.com> References: <1382127195-15261-1-git-send-email-andreas.herrmann@calxeda.com> <1382127195-15261-4-git-send-email-andreas.herrmann@calxeda.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <1382127195-15261-4-git-send-email-andreas.herrmann-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Andreas Herrmann Cc: "iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org" , Rob Herring , "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org" List-Id: iommu@lists.linux-foundation.org On Fri, Oct 18, 2013 at 09:13:12PM +0100, Andreas Herrmann wrote: > In such a case we have to use secure aliases of some non-secure > registers. > > This handling is switched on by DT property > "arm,smmu-secure-config-access" for an SMMU node. This looks fine, but won't apply without the device isolation changes. Will