phyllomeos/blocks/base-hypervisor-a.cfg

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# What ? This kickstart file configures an hypervisor for AMD (tm) CPUs

services --enabled="NetworkManager,libvirtd"

%post --nochroot --log=/mnt/sysimage/root/bha.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 amd_iommu=on amd_iommu=pt rd.driver.pre=vfio-pci/i' /mnt/sysimage/etc/default/grub # Load kernel modules in GRUB. 

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

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

# The following part seems useless
# dracut --add-drivers " vfio vfio-pci vfio_iommu_type1 vfio_virqfd " --force # Instruct dracut to load the vfio drivers
# dracut --force # Regenerate initramfs
# Doesn't seem to work
# dracut: Cannot find /usr/lib/dracut/dracut-init.sh.
# dracut: Are you running from a git checkout?
# dracut: Try passing -l as an argument to /mnt/sysimage/usr/bin/dracut

# The following part seems useless too. No need to regenerate grub
# grub2-mkconfig -o /mnt/sysimage/boot/grub2/grub.cfg # Update grub. Does it fail ? /usr/sbin/grub2-probe: error: failed to get canonical path of `LiveOS_rootfs'.

%end # End of the %post section