iommu: Add a new type field in iommu_resv_region

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We introduce a new field to differentiate the reserved region
types and specialize the apply_resv_region implementation.

Legacy direct mapped regions have IOMMU_RESV_DIRECT type.
We introduce 2 new reserved memory types:
- IOMMU_RESV_MSI will characterize MSI regions that are mapped
- IOMMU_RESV_RESERVED characterize regions that cannot by mapped.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Tomasz Nowicki <tomasz.nowicki@caviumnetworks.com>
Tested-by: Bharat Bhushan <bharat.bhushan@nxp.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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Eric Auger 2017-01-19 20:57:48 +00:00 • committed by Will Deacon

parent e5b5234a36

commit d30ddcaa7b

2 changed files with 8 additions and 0 deletions

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include/linux/iommu.h

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