Re: [PATCH 6/6] iommu/amd: Manage iommu_group for non-pci devices

From	Joerg Roedel <joro@8bytes.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH 6/6] iommu/amd: Manage iommu_group for non-pci devices
Date	2016-01-07 13:10 +0100
Message-ID	<qOhy9-7Vb-5@gated-at.bofh.it> (permalink)
References	<qOhy9-7Vb-7@gated-at.bofh.it> <qOhy9-7Vb-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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

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Re: [PATCH 6/6] iommu/amd: Manage iommu_group for non-pci devices Joerg Roedel <joro@8bytes.org> - 2016-01-07 13:10 +0100
  Re: [PATCH 6/6] iommu/amd: Manage iommu_group for non-pci devices Wan ZongShun <mcuos.com@gmail.com> - 2016-01-08 02:50 +0100

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