Re: [Xen-devel] [PATCH v2 for-4.12] arm/p2m: call iommu iotlb flush if iommu exists and enabled

[Julien Grall <julien.grall@xxxxxxx>]

On 23/01/2019 12:50, Andrii Anisov wrote:
> From: Andrii Anisov <andrii_anisov@xxxxxxxx>
>
> 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.grall@xxxxxxx>

Cheers,

--
Julien Grall

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