iommu: Introduce direct mapped region handling

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Add two new functions to the IOMMU-API to allow the IOMMU
drivers to export the requirements for direct mapped regions
per device.
This is useful for exporting the information in Intel VT-d's
RMRR entries or AMD-Vi's unity mappings.

Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Joerg Roedel 2015-05-28 18:41:33 +02:00

parent 2c1296d92a

commit a1015c2b99

2 changed files with 47 additions and 0 deletions

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16

drivers/iommu/iommu.c

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31

include/linux/iommu.h

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