From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: Re: [PATCH 6/6] iommu/amd: Manage iommu_group for non-pci devices Date: Thu, 7 Jan 2016 13:06:59 +0100 Message-ID: <20160107120659.GC19149@8bytes.org> References: <1451988444-4694-1-git-send-email-vincent.wan@amd.com> <1451988444-4694-7-git-send-email-vincent.wan@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <1451988444-4694-7-git-send-email-vincent.wan-5C7GfCeVMHo@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: Wan Zongshun Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Ray Huang , Borislav Petkov , ken.xue-5C7GfCeVMHo@public.gmane.org List-Id: iommu@lists.linux-foundation.org On Tue, Jan 05, 2016 at 05:07:24AM -0500, Wan Zongshun wrote: > +static struct iommu_group *amd_iommu_device_group(struct device *dev) > +{ > + if (dev_is_pci(dev)) > + return pci_device_group(dev); > + > + return acpihid_device_group(dev); > +} > + > /***************************************************************************** > * > * The next functions belong to the dma_ops mapping/unmapping code. > @@ -3202,7 +3233,7 @@ static const struct iommu_ops amd_iommu_ops = { > .iova_to_phys = amd_iommu_iova_to_phys, > .add_device = amd_iommu_add_device, > .remove_device = amd_iommu_remove_device, > - .device_group = pci_device_group, > + .device_group = amd_iommu_device_group, Does this work? Which bus do the ACPIHID devices belong to (what does dev->bus point to)? If it is not &pci_bus_type, then the iommu core code will not create an iommu group for the devices. Joerg