Re: [PATCH vhost v11 05/10] virtio_ring: introduce virtqueue_dma_dev()
From: Christoph Hellwig <hch@infradead.org>
Date: 2023-07-13 11:15:32
Also in:
bpf, virtualization
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..