> -ACPI enumerates and lists the different DMA engines in the platform, and
> -device scope relationships between PCI devices and which DMA engine controls
> +ACPI enumerates and lists the different IOMMUs in the platform, and
> +device scope relationships between PCI devices and which IOMMU controls
> them.
Isn't this just a really long-winded way of saying:
ACPI enumerates both the IOMMUs in the platform and which IOMMU
controls a specific PCI device.
?
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