feat: enable Fedora 44 hypervisor recipe with systemd-boot

- uncomment the hypervisor recipe, targeting Fedora 44 with
  systemd-boot, hardware-support and the intelcpu variant
- make intelcpu.ks bootloader-aware: with systemd-boot kernel
  arguments must go to /etc/kernel/cmdline, not /etc/default/grub

cook/ingredients/hypervisor/intelcpu.ks

@@ -2,7 +2,11 @@
 
 %post --nochroot --log=/mnt/sysimage/root/hypervisor-intelcpu-post.log # Beginning of %post section. Those commands are executed outside the chroot environment. Logging is enabled to help with post-installation troubleshooting
 
+if [ -f /mnt/sysimage/etc/kernel/cmdline ]; then # systemd-boot: kernel arguments live in /etc/kernel/cmdline
+    grep -q "intel_iommu=on" /mnt/sysimage/etc/kernel/cmdline || sed -i 's/$/ intel_iommu=on iommu=pt rd.driver.pre=vfio-pci/' /mnt/sysimage/etc/kernel/cmdline # Append IOMMU arguments once
+else # GRUB: kernel arguments live in /etc/default/grub
     sed -i 's/\(quiet\)/\1 intel_iommu=on iommu=pt rd.driver.pre=vfio-pci/i' /mnt/sysimage/etc/default/grub # Load kernel modules in GRUB.
+fi
 
 echo "options kvm_intel nested=1" >> /mnt/sysimage/etc/modprobe.d/kvm.conf # Add support for nested virtualization on Intel CPUs
 

cook/recipes_manifest.yaml

@@ -36,16 +36,16 @@ recipes:
         guest-agents: true
         initial-setup: server
 
-#  # Hypervisor variants
-#  - name: hypervisor
-#    variants:
-#      - repository: 43
-#        storage: standard
-#        bootloader: grub
-#        hardware-support: true
-#        guest-agents: false
-#        hypervisor: base
-#        hypervisor_type: ["amdcpu", "intelcpu"]
+  # Hypervisor variants
+  - name: hypervisor
+    variants:
+      - repository: ["44"]
+        storage: standard
+        bootloader: systemd-boot
+        hardware-support: true
+        guest-agents: false
+        hypervisor: base
+        hypervisor_type: intelcpu
 #
 #  # Desktop-hypervisor variants
 #  - name: desktop-hypervisor