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iommu: Add option to group multi-function devices

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The option iommu=group_mf indicates the that the iommu driver should
expose all functions of a multi-function PCI device as the same
iommu_device_group.  This is useful for disallowing individual functions
being exposed as independent devices to userspace as there are often
hidden dependencies.  Virtual functions are not affected by this option.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Alex Williamson 2011-10-21 15:56:24 -04:00 • committed by Joerg Roedel
commit bcb71abe7d
7 changed files with 30 additions and 2 deletions
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