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| Availability | Acceptance in the VIRTIO standard | Proposal for the standard | De facto standard | Implementation status | In QEMU / Linux kernel | FOSSS in a GitHub Repo | Commercial / closed-source implementation | Other implementations | Complexity estimation | Performance | Code maturity | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| virtio-iommu | Yes | No (WIP) | Expected to land in 1.2 | Final proposal v0.4 Working draft 0.12 [1]. | No | The device can handle attach/detach and map/unmap requests from a guest. | Not yet, patches submitted | Yes: kernel (upstream since 5.3) [2], QEMU [3] | ARM SMMUv3 Emulation [4] | Low/Medium | Low, see [5] page 21, needs testing | Medium |
[1] httphttps://jpbrucker.netgithub.com/oasis-tcs/virtio-iommuspec/spec/virtio-iommu.pdfissues/37
[2] https://github.com/torvalds/linux/blob/v5.3/drivers/iommu/virtio-iommu.c
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