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-rw-r--r--ansible/roles/enable_iommu_on_boot/tasks/main.yml92
1 files changed, 49 insertions, 43 deletions
diff --git a/ansible/roles/enable_iommu_on_boot/tasks/main.yml b/ansible/roles/enable_iommu_on_boot/tasks/main.yml
index 1b98a50b1..188b32915 100644
--- a/ansible/roles/enable_iommu_on_boot/tasks/main.yml
+++ b/ansible/roles/enable_iommu_on_boot/tasks/main.yml
@@ -1,4 +1,4 @@
-# Copyright (c) 2017 Intel Corporation
+# Copyright (c) 2017-2018 Intel Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@@ -22,51 +22,57 @@
iommu_boot_params: ' amd_iommu=on iommu=pt'
when: hostvars[inventory_hostname]['ansible_system_vendor'] == "AuthenticAMD"
-- name: Set facts for this role
- set_fact:
- hugepages_help_string: ' # added by hugepages role'
- iommu_help_string: ', added by iommu role'
- hugepages_params: " default_hugepagesz=1G hugepagesz=1G hugepages=8"
- iommu_original_kernel_params: 'GRUB_CMDLINE_LINUX="\$GRUB_CMDLINE_LINUX{{ hugepages_params }}'
- iommu_enabled_kernel_params: '{{ iommu_original_kernel_params }}{{ iommu_boot_params }}"'
- iommu_enabled_kernel_params_with_help: '{{ iommu_original_kernel_params }}{{ iommu_boot_params }}"{{ hugepages_help_string }}{{ iommu_help_string }}'
+- block:
+ - name: Define grub string for IOMMU
+ set_fact:
+ enable_iommu: 'GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX{{ iommu_boot_params }}'
-- name: check if iommu is set by this role in /etc/default/grub
- lineinfile:
- path: /etc/default/grub
- line: '{{ iommu_enabled_kernel_params_with_help }}'
- #changed_when: no
- check_mode: yes
- register: is_mine_iommu_etc_grub
- ignore_errors: True
+ - name: check if iommu is set by this role in {{ grub_file}}
+ lineinfile:
+ path: "{{ grub_file}}"
+ regexp: '{{ iommu_help_string }}'
+ line: '{{ iommu_help_string }}'
+ state: absent
+ check_mode: yes
+ register: is_nsb_iommu_role
+ ignore_errors: True
-- name: check if iommu is set by someone else
- command: "grep -o 'iommu' /etc/default/grub"
- register: is_iommu
- ignore_errors: True
+ - name: Check if IOMMU is set by someone else
+ lineinfile:
+ path: "{{ grub_file}}"
+ regexp: "_iommu="
+ line: '{{ iommu_help_string }}'
+ state: absent
+ check_mode: yes
+ register: is_iommu
+ ignore_errors: True
-- fail:
- msg: "Iommu already set by someone else"
- when: is_mine_iommu_etc_grub.changed == false and is_iommu.stdout != ""
+ - name: Send info that IOMMU is configured by someone else
+ debug:
+ msg: "INFO: NOT modified, IOMMU is already configured by someone."
+ when:
+ - not is_nsb_iommu_role.changed
+ - is_iommu.changed
-- name: 'Configure iommu in /etc/default/grub'
-# and /boot/grub/grub.cfg(when: ansible_distribution == "Ubuntu")'
- lineinfile:
- path: /etc/default/grub
- regexp: '({{ iommu_original_kernel_params }})"{{ hugepages_help_string }}'
- line: '\1{{ iommu_boot_params }}"{{ hugepages_help_string }}{{ iommu_help_string }}'
- backrefs: yes
- when: is_mine_iommu_etc_grub.changed == true
+ - name: Add IOMMU when it is not set
+ lineinfile:
+ path: "{{ grub_file }}"
+ regexp: "{{ iommu_help_string }}"
+ line: '{{ enable_iommu }}" {{ iommu_help_string }}'
+ when:
+ - not is_nsb_iommu_role.changed
+ - not is_iommu.changed
-- name: find boot grub.cfg
- find:
- paths: /boot
- file_type: file
- patterns: 'grub*.cfg'
- recurse: yes
- register: grub_files
+ - name: find boot grub.cfg
+ find:
+ paths: /boot
+ file_type: file
+ patterns: 'grub*.cfg'
+ recurse: yes
+ register: grub_files
-- include: manual_modify_grub.yml
- # only tested on Ubuntu, kernel line is probably different on other distros
- with_items: "{{ grub_files.files }}"
- when: ansible_distribution == "Ubuntu"
+ - include: manual_modify_grub.yml
+ # only tested on Ubuntu, kernel line is probably different on other distros
+ with_items: "{{ grub_files.files }}"
+ when: ansible_distribution == "Ubuntu"
+ when: iommu_boot_params is defined