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SubjectRe: [PATCH v6 5/8] iommu: Add bounce page APIs
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Hi,

On 8/16/19 12:46 PM, Christoph Hellwig wrote:
> On Fri, Aug 16, 2019 at 10:45:13AM +0800, Lu Baolu wrote:
>> Okay. I understand that adding these APIs in iommu.c is not a good idea.
>> And, I also don't think merging the bounce buffer implementation into
>> iommu_map() is feasible since iommu_map() is not DMA API centric.
>>
>> The bounce buffer implementation will eventually be part of DMA APIs
>> defined in dma-iommu.c, but currently those APIs are not ready for x86
>> use yet. So I will put them in iommu/vt-d driver for this time being and
>> will move them to dma-iommu.c later.
>
> I think they are more or less ready actually, we just need more people
> reviewing the conversions. Tom just reposted the AMD one which will need
> a few more reviews, and he has an older patchset for intel-iommu as well
> that could use a some more eyes.
>

Good progress and thanks for the update. I prefer that we merge this
patch series first since it addresses the real thunderbolt
vulnerability.

Best regards,
Lu Baolu

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