Re: [PATCH vhost v11 05/10] virtio_ring: introduce virtqueue_dma_dev()

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On Thu, Jul 13, 2023 at 04:15:16AM -0700, Christoph Hellwig wrote:
> On Mon, Jul 10, 2023 at 11:42:32AM +0800, Xuan Zhuo wrote:
> > Added virtqueue_dma_dev() to get DMA device for virtio. Then the
> > caller can do dma operation in advance. The purpose is to keep memory
> > mapped across multiple add/get buf operations.
> This is just poking holes into the abstraction..

More specifically?


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