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VFIO fixes for v6.18-rc6

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- 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)
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Merge tag 'vfio-v6.18-rc6' into v6.19/vfio/next

Merge mainline vfio-selftest updates for ongoing v6.19 work.

Signed-off-by: Alex Williamson <alex@shazbot.org>
This commit is contained in:
Alex Williamson 2025-11-28 10:54:22 -07:00
commit a63a03afd8
4 changed files with 288 additions and 9 deletions
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