Messages in this thread | | | From | Pierre Morel <> | Subject | [PATCH v1] iommu/s390: Declare s390 iommu reserved regions | Date | Tue, 15 Jan 2019 18:37:29 +0100 |
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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(+)
-- 2.7.4
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