[PATCH v3 1/5] iommu_pt: Fix test_pgsize_boundary() failure on narrow-OA formats

Jason Gunthorpe jgg at nvidia.com
Wed Aug 26 11:18:41 PDT 2026


On Tue, 25 Aug 2026 21:56:04 +0100, Daniel Drake <dan at reactivated.net> wrote:
> test_pgsize_boundary() tests boundary mapping with a hardcoded physical
> address that requires 38 bits of physical address space. However, the
> upcoming page table format for the Broadcom BCM2712 IOMMU only supports
> 37 bits of output address space.
> 
> This causes a test failure as iommu_map() rejects the large address
> with -ERANGE.
> 
> [...]

Reviewed-by: Jason Gunthorpe <jgg at nvidia.com>

-- 
Jason



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