linux-kernel - Re: clearly mark DMA_OPS support as an architecture feasture

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Message-ID: <20240826063002.GA30266@lst.de>
Date: Mon, 26 Aug 2024 08:30:02 +0200
From: Christoph Hellwig <hch@....de>
To: Jason Wang <jasowang@...hat.com>
Cc: Christoph Hellwig <hch@....de>, "Michael S . Tsirkin" <mst@...hat.com>,
	iommu@...ts.linux.dev, Marek Szyprowski <m.szyprowski@...sung.com>,
	Robin Murphy <robin.murphy@....com>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>,
	Bingbu Cao <bingbu.cao@...el.com>, linux-kernel@...r.kernel.org,
	linux-alpha@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-mips@...r.kernel.org, linux-parisc@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
	sparclinux@...r.kernel.org, linux-media@...r.kernel.org,
	virtualization@...ts.linux.dev, xen-devel@...ts.xenproject.org
Subject: Re: clearly mark DMA_OPS support as an architecture feasture

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.