Re: [RFC 0/4] Virtio uses DMA API for all devices
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2018-08-05 02:21:38
Also in:
linuxppc-dev, lkml
Possibly related (same subject, not in this thread)
- 2018-09-10 · Re: [RFC 0/4] Virtio uses DMA API for all devices · Gerd Hoffmann <kraxel@redhat.com>
- 2018-09-10 · Re: [RFC 0/4] Virtio uses DMA API for all devices · Christoph Hellwig <hch@infradead.org>
- 2018-08-09 · Re: [RFC 0/4] Virtio uses DMA API for all devices · Christoph Hellwig <hch@infradead.org>
- 2018-08-09 · Re: [RFC 0/4] Virtio uses DMA API for all devices · Benjamin Herrenschmidt <benh@kernel.crashing.org>
- 2018-08-08 · Re: [RFC 0/4] Virtio uses DMA API for all devices · Benjamin Herrenschmidt <benh@kernel.crashing.org>
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.