From: Alex Williamson <alex.williamson@redhat.com>
Date: Fri, 21 Oct 2011 19:56:11 +0000 (-0400)
Subject: iommu/intel: Implement iommu_device_group
X-Git-Tag: v3.3-rc1~120^2^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=70ae6f0d55bd216b2f773fa5fa5018c0490a9e50;p=pandora-kernel.git

iommu/intel: Implement iommu_device_group

We generally have BDF granularity for devices, so we just need
to make sure devices aren't hidden behind PCIe-to-PCI bridges.
We can then make up a group number that's simply the concatenated
seg|bus|dev|fn so we don't have to track them (not that users
should depend on that).

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Acked-By: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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