On 23/01/2019 12:50, Andrii Anisov wrote:
From: Andrii Anisov <andrii_ani...@epam.com>

Taking decision by `need_iommu_pt_sync()` make us never kicking
`iommu_iotlb_flush()` for IOMMUs which do share P2M with CPU.
So check `has_iommu_pt()` instead.

Please mention the bug was introduced by commit 91d4eca7ad "mm / iommu: split need_iommu() into has_iommu_pt() and need_iommu_pt_sync()".

With that:

Acked-by: Julien Grall <julien.gr...@arm.com>

Cheers,

--
Julien Grall

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