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6da43bbeb6
Pull VFIO seftest fixes from Alex Williamson: - Fix vfio selftests to remove the expectation that the IOMMU supports a 64-bit IOVA space. These manifest both in the original set of tests introduced this development cycle in identity mapping the IOVA to buffer virtual address space, as well as the more recent boundary testing. Implement facilities for collecting the valid IOVA ranges from the backend, implement a simple IOVA allocator, and use the information for determining extents (Alex Mastro) * tag 'vfio-v6.18-rc6' of https://github.com/awilliam/linux-vfio: vfio: selftests: replace iova=vaddr with allocated iovas vfio: selftests: add iova allocator vfio: selftests: fix map limit tests to use last available iova vfio: selftests: add iova range query helpers