Re: [PATCH] VFIO driver: Non-privileged user level PCI drivers

[Chris Wright]

* Avi Kivity (avi@xxxxxxxxxx) wrote:
> The interface would only work for clients which support it: kvm,
> vhost, and iommu/devices with restartable dma.

BTW, there is no such thing as restartable dma.  There is a provision in
new specs (read: no real hardware) that allows a device to request pages
before using them.  So it's akin to demand paging, but the demand is an
explicit request rather than a page fault.

thanks,
-chris
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