[PATCH v1] iommu/s390: Declare s390 iommu reserved regions

[Pierre Morel]

The s390 iommu can only allow DMA transactions between the zPCI device
entries start_dma and end_dma.

Let's declare the regions before start_dma and after end_dma as
reserved regions using the appropriate callback in iommu_ops.

The reserved region may later be retrieved from sysfs or from
the vfio iommu internal interface.

This seems to me related with the work Shameer has started on
vfio_iommu_type1 so I add Alex and Shameer to the CC list.


Pierre Morel (1):
  iommu/s390: Declare s390 iommu reserved regions

 drivers/iommu/s390-iommu.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

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2.7.4