What is IOMMU and how it can be used?
Published at January 13, 2021 · Marek Kasiewicz · 6 min read
Welcome to a new blogpost series dedicated to IOMMU. In this article, you can read what IOMMU is and find out if its use may be beneficial for you....
DEV and IOMMU: a story of two DMA protection mechanisms
Published at July 3, 2020 · Krystian Hebel · 12 min read
Both DEV and IOMMU can help with protection against malicious DMA. This post roughly describes the difference between those two, as well as the impact they have on each other in the context of TrenchBoot...
Xen HVM guests on PC Engines apu2
Published at August 16, 2018 · Piotr Król · 15 min read
Continuing blog post series around Xen and IOMMU enabling in coreboot we are reaching a point in which some features seem to work correctly on top of recent patch series in firmware. What we can do at this point is PCI passthrough to guest VMs. Previously trying that on Xen caused problems: random hangs firmware cause Linux kernel booting issues (hang during boot) IOMMU disabled - unable to use PCI passthrough Now we can see something like that in dom0:...
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