clearly mark DMA_OPS support as an architecture feasture

[Jason Wang]

On Mon, Aug 26, 2024 at 2:30 PM Christoph Hellwig <hch at lst.de> wrote:
>
> On Mon, Aug 26, 2024 at 02:27:27PM +0800, Jason Wang wrote:
> > Actually I meant, we can extend the virtio_config_ops to allow mapping
> > ops there, then simulator and VDUSE can hook the map ops there.
>
> From a quick glance that feels like the right layer of abstraction,
> although the config part of the name feels wrong at that point.

Right, or we could have a dedicated map_ops instead of trying to use
virtio_config_ops.

Thanks

>