---
- name: IOMMU Kernel-Parameter setzen (GRUB)
  lineinfile:
    path: /etc/default/grub
    regexp: '^GRUB_CMDLINE_LINUX_DEFAULT='
    line: 'GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt"'
  register: grub_updated
  notify: Update GRUB

- name: VFIO Module in /etc/modules eintragen
  copy:
    dest: /etc/modules
    content: |
      # /etc/modules - VFIO fuer GPU Passthrough
      vfio
      vfio_iommu_type1
      vfio_pci
    mode: "0644"
  register: modules_updated

- name: Alte fehlerhafte modprobe Configs aufraeumen
  file:
    path: "{{ item }}"
    state: absent
  loop:
    - /etc/modprobe.d/block-nouveau.conf
    - /etc/modprobe.d/nvidia-installer-disable-nouveau.conf

- name: NVIDIA und Nouveau auf Host blacklisten
  copy:
    dest: /etc/modprobe.d/gpu-passthrough.conf
    content: |
      blacklist nouveau
      blacklist nvidia
      blacklist nvidiafb
      blacklist rivafb
      options nouveau modeset=0
      softdep nvidia pre: vfio-pci
      softdep nouveau pre: vfio-pci
    mode: "0644"
  register: modprobe_updated

- name: initramfs aktualisieren
  command: update-initramfs -u -k all
  when: grub_updated.changed or modules_updated.changed or modprobe_updated.changed