From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Williamson Subject: Re: [PATCH v5 0/4] vfio: type1: support for ARM SMMUS with VFIO_IOMMU_TYPE1 Date: Thu, 05 Mar 2015 14:11:55 -0700 Message-ID: <1425589915.5200.336.camel@redhat.com> References: <1425485274-5709-1-git-send-email-b.reynal@virtualopensystems.com> <1425491104.5200.268.camel@redhat.com> <54F893C3.6020006@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <54F893C3.6020006-QSEj5FYQhm4dnm+yROfE0A@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: Eric Auger Cc: Will Deacon , iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, tech-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J@public.gmane.org, kvmarm-FPEHb7Xf0XXUo1n7N8X6UoWGPAHP3yOg@public.gmane.org List-Id: iommu@lists.linux-foundation.org On Thu, 2015-03-05 at 18:34 +0100, Eric Auger wrote: > Hi All, > > Ironically, since the correction of the IOMMU_CAP_CACHE_COHERENCY bug > (https://lkml.org/lkml/2015/1/29/514) in vfio_iommu_type1.c, my Calxeda > Midway VFIO use case is not working anymore. This is also observable > when I do not apply at all the whole [PATCH v5 0/4] vfio: type1: support > for ARM SMMUS with VFIO_IOMMU_TYPE1 series. > > My understanding is this series should not be requested for me since my > xgmac device does not care about the XN attribute. This also raises the concern that we're continuing to put optional features as prerequisites to base vfio-platform support and creating self-induced stalls at getting anything upstream :-\ Thanks, Alex