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Subject: Re: [RFC 0/4] Virtio uses DMA API for all devices
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: "Michael S. Tsirkin" <mst@redhat.com>, Christoph Hellwig
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Date: Sun, 05 Aug 2018 11:11:32 +1000
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On Sun, 2018-08-05 at 03:09 +0300, Michael S. Tsirkin wrote:
> It seems that the fact that within guest it's implemented using a bounce
> buffer and that it's easiest to do by switching virtio to use the DMA API
> isn't something virtio spec concerns itself with.

Right, this is my reasoning as well. See this other (long) email I just
sent to Christoph to explain the whole flow.

> I'm open to suggestions.

Cheers,
Ben.