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For AArch64, now virtual IOMMU is only tested on FDT, not ACPI. In the case of FDT, the behavior of IOMMU is a bit different with ACPI. All the devices on the PCI bus will be attached to the virtual IOMMU, except the virtio-iommu device itself. So these devices will all be added to IOMMU groups, and appear in folder '/sys/kernel/iommu_groups/'. The result is, on AArch64 IOMMU group '0' contains "0000:00:01.0" which is the console device. But on X86, console device is not attached to IOMMU. So the IOMMU group '0' contains "0000:00:02.0" which is the first disk. Signed-off-by: Michael Zhao <michael.zhao@arm.com> |
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integration.rs |