phyllomeos/ingredients/base-hypervisor-amdcpu.cfg

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# What ? This kickstart file preloads the vfio-pci driver for devices that are binded to it, activates IOMMU and enables nested-virtualization for AMD (tm) CPUs

%post --nochroot --log=/mnt/sysimage/opt/base-hypervisor-amdcpu.log # Beginning of %post section. Those commands are executed outside the chroot environment. Logging is enabled to help with post-installation troubleshooting

sed -i 's/\(quiet\)/\1 iommu=pt rd.driver.pre=vfio-pci/i' /mnt/sysimage/etc/default/grub # Load kernel modules in GRUB. 

echo "options kvm_amd nested=1" >> /mnt/sysimage/etc/modprobe.d/kvm.conf # Add support for nested-virtualization

%end # End of the %post section