#            __          ____                        ____  _____
#     ____  / /_  __  __/ / /___  ____ ___  ___     / __ \/ ___/
#    / __ \/ __ \/ / / / / / __ \/ __ `__ \/ _ \   / / / /\__ \
#   / /_/ / / / / /_/ / / / /_/ / / / / / /  __/  / /_/ /___/ /
#  / .___/_/ /_/\__, /_/_/\____/_/ /_/ /_/\___/   \____//____/
# /_/          /____/

# What ? This kickstart file configures an hypervisor for AMD (tm) CPUs
# 'b' for basic building block, 'a' for amd, 'm' for minimal, 'd' for development only.

%post --nochroot # Beginning of %post section. Those commands are executed outside the chroot environment

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

# Load kernel modules by adding vfio, vfio_pci, vfio_iommu_type1, vfio_virqfd
echo "vfio" > /etc/modules-load.d/vfio.conf
echo "vfio-pci" > /etc/modules-load.d/vfio-pci.conf
echo "vfio_iommu_type1" > /etc/modules-load.d/vfio_iommu_type1.conf
echo "vfio_virqfd" > /etc/modules-load.d/vfio_virqfd.conf

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

dracut --add-drivers " vfio vfio-pci vfio_iommu_type1 vfio_virqfd " --force # Instruct dracut to load the vfio drivers
dracut --force # Regenerate initramfs

dracut --force # Regenerate initramfs.
grub2-mkconfig -o /boot/grub2/grub.cfg # Update grub

%end # End of the %post section