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Subject: Re: [PATCH v6 0/7] Add virtio-iommu driver

On 11/12/2018 18:31, Christoph Hellwig wrote:
> On Tue, Dec 11, 2018 at 06:20:57PM +0000, Jean-Philippe Brucker wrote:
>> Implement the virtio-iommu driver, following specification v0.9 [1].
>> Only minor changes since v5 [2]. I fixed issues reported by Michael and
>> added tags from Eric and Bharat. Thanks!
>> You can find Linux driver and kvmtool device on v0.9 branches [3],
>> module and x86 support on virtio-iommu/devel. Also tested with Eric's
>> QEMU device [4].
> Just curious, what is the use case for it?

The main use case is assigning a device to guest userspace, using VFIO
both in the host and in the guest (the most cited example being DPDK).
There are others, and I wrote a little more about them last week:


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