How to enable AMD IOMMU in coreboot - chapter two
3mdeb tech talks - technical lectures prepared by our embedded systems specialists.
The idea for this talk born from fascination about the philosophy behind QubesOS, OpenXT, and ViryaOS. The underlying technology for those OSes is Xen. Xen is a well-known project under the Linux Foundation umbrella, but what is most interesting in it from open source firmware perspective are high-end virtualization features
like:
DMA protection
PCI pass-through
Interrupt remapping
SR-IOV
TPM and vTPM
others
With automotive market hypervisors slowly move into embedded space, what means underlying firmware will have to expose right infrastructure to provide initial configuration and security.
Most features have to be configured and exposed in a well-defined way by firmware. IOMMU is the system component that some of the mentioned features rely on.
As maintainers of PC Engines apuX platforms, we decided to work on AMD IOMMU enabling to create right infrastructure for hypervisors and operating systems.
In this presentation we want to:
explain features of AMD IOMMU
present recommended methods of AMD IOMMU enabling
demonstrate current status of our work
discuss future user needs and implementation plans
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