[RFC PATCH 6/6] arm/xen: Assign xen-virtio DMA ops for virtio devices in Xen guests
Christoph Hellwig
hch at infradead.org
Fri Apr 15 23:07:00 PDT 2022
On Fri, Apr 15, 2022 at 03:02:45PM -0700, Stefano Stabellini wrote:
> This makes sense overall. Considering that the swiotlb-xen case and the
> virtio case are mutually exclusive, I would write it like this:
Curious question: Why can't the same grant scheme also be used for
non-virtio devices? I really hate having virtio hooks in the arch
dma code. Why can't Xen just say in DT/ACPI that grants can be used
for a given device?
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