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Enable IOMMU on the compute-node
First vt-d needs to be enabled in the systems BIOS/UEFI menu. This option might be visible, or hidden behind a generic "Enable Virtualization Technologies". Next up is to enable the IOMMU in ubuntu by modifying /etc/default/grub to contain:
| Code Block | ||
|---|---|---|
| ||
GRUB_CMDLINE_LINUX_DEFAULT="intel_iommu=on iommu=pt"
GRUB_CMDLINE_LINUX="intel_iommu=on iommu=pt" |
After a reboot you should be able to see that the IOMMU is enabled correctly like so:
Configure Openstack to know about the PCIe-devices.
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