From mboxrd@z Thu Jan 1 00:00:00 1970 From: will.deacon@arm.com (Will Deacon) Date: Thu, 20 Nov 2014 13:25:59 +0000 Subject: 48-bit VA support in the SMMU In-Reply-To: <7a9f17b997db458b9f15893837df04eb@BN3PR0301MB1219.namprd03.prod.outlook.com> References: <20141120100822.GA19126@arm.com> <7a9f17b997db458b9f15893837df04eb@BN3PR0301MB1219.namprd03.prod.outlook.com> Message-ID: <20141120132558.GK19126@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Nov 20, 2014 at 01:05:51PM +0000, Varun Sethi wrote: > Thanks Will. But still, if things work for the stage 1 case why disable 48 > bit support for the SMMU driver. Wouldn't stage-2 be relevant in case of > virtual SMMU? Well, VFIO installs at stage-2 and the host kernel needs to be able to handle that. The virtual SMMU interface always installs at stage-1. Will