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How to add an IOMMU device in QEMU?

Version History
Date Description
Aug 2, 2021 Initial

TL;DR This blog explains how QEMU simulate IOMMU device and how you can add one of your own. We will take a brief read of Intel IOMMU, ARM SMMU, and Virtio-IOMMU. Finally we will add a new one to RISC-V virt machine mode.

The plan is to write this doc at the end of Sep 2021.

Last update: August 25, 2021