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Jason Gunthorpe
1eb0ae6fbd
If the IOVA is limited to less than 48 the page table will be constructed
with a 3 level configuration which is unsupported by hardware.
Like the second stage the caller needs to pass in both the top_level an
the vasz to specify a table that has more levels than required to hold the
IOVA range.
Fixes: 6cbc09b771 ("iommu/vt-d: Restore previous domain::aperture_end calculation")
Reported-by: Calvin Owens <[email protected]>
Closes: https://lore.kernel.org/r/8f257d2651eb8a4358fcbd47b0145002e5f1d638.1764237717.git.calvin@wbinvd.org
Signed-off-by: Jason Gunthorpe <[email protected]>
Reviewed-by: Lu Baolu <[email protected]>
Tested-by: Calvin Owens <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>