Re: [PATCH vhost v6 08/11] virtio_ring: introduce virtqueue_dma_dev()

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On Tue, Apr 11, 2023 at 09:56:19AM +0800, Xuan Zhuo wrote:
> Do you mean we should not change the dma_ops from the outside of the core
> kernel/dma/?

Basically, yes.  That plus probing for the IOMMU drivers.

> How about adding one new "dma_direct" to struct devive?

Why would we?

Can you please explain what you're even trying to do?  But checking
a dma_direct flag for sure isn't the solution.
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