PCI Express

Is a computer expansion bus

PCIe Groups

• Can be checked with find /sys/kernel/iommu_groups/ -type l

IOMMU / PCIe Passthrough

• Is the ability to redirect PCI device(s) to Virtual Machine
• On Linux, check if active with dmesg | grep -e DMAR -e IOMMU -e AMD-Vi
  • Should return IOMMU, Directed I/O or Interrupt Remapping is enabled