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SubjectRe: [PATCH 0/3] fix GART to respect device's dma_mask about virtual mappings
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Date
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> writes:

> Currently, gart IOMMU ignores device's dma_mask when it does virtual
> mappings. So it could give a device a virtual address that the device
> can't access to.

Huh? That is what the need_iommu() logic in gart_map_sg()
does. An I'm not aware of any bugs in this area.

Did you actually see that failure in practice? I don't see
how it could happen.

-Andi
--
ak@linux.intel.com


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