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linux/Documentation
Jean-Philippe Brucker badd9f19f1 dt-bindings: Add "external-facing" PCIe port property
Provide a way for the firmware to tell the OS which devices are external to
the machine and therefore untrusted.  The property can describe for example
Thunderbolt and other user-accessible ports, which should always have the
strongest IOMMU protection.

Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Grant Likely <grant.likely@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
2019-04-11 16:17:40 -05:00
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