The IVRS ACPI table specifies maximum address sizes for I/O virtual addresses that can be handled by the IOMMUs in the system. Parse that data from the IVRS header to provide aperture information for DMA mappings and users of the iommu API.
Sebastian Ott (3): iommu/amd: Parse supported address sizes from IVRS iommu/amd: Restrict aperture for domains to conform with IVRS iommu/amd: Actually enforce geometry aperture drivers/iommu/amd_iommu.c | 16 +++++++++++----- drivers/iommu/amd_iommu_init.c | 26 ++++++++++++++++++++++++++ drivers/iommu/amd_iommu_types.h | 3 +++ 3 files changed, 40 insertions(+), 5 deletions(-) -- 2.17.1 Amazon Development Center Germany GmbH Krausenstr. 38 10117 Berlin Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B Sitz: Berlin Ust-ID: DE 289 237 879 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
