BIOS
- Refer to the BIOS manual.
Linux Kernel
- Add the required options at boot time
# vi /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="amd_iommu=on"
For AMD, specify amd_iommu=on, and for Intel, specify intel_iommu=on.
- Apply GRUB configuration
# update-grub
- Reboot
# reboot
- Verify parameters
# cat /proc/cmdline
- Check dmesg
# dmesg | grep iommu