Re: [PATCH 3/3] virtio_pci: Use the DMA API

[Joerg Roedel]

On Wed, Oct 28, 2015 at 11:15:30AM +0900, Joerg Roedel wrote:
> Same here, you need to call the dma_sync* functions when passing data
> from/to the virtio-device.

Okay, forget about this comment. This patch only converts to
dma_coherent allocations, which don't need synchronization.

> I think a good test for that is to boot a virtio kvm-guest with
> swiotlb=force and see if it still works.

But this holds, Its a good way to test if your changes work with
bounce-buffering. Together with DMA_API_DEBUG you also see if your
specified dma_directions are right.



	Joerg

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