diff options
author | 2017-11-21 12:05:43 -0800 | |
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committer | 2018-01-22 21:54:26 +0000 | |
commit | 1fe31e2bc4ac789000f11c1f78b31b0b1fa60882 (patch) | |
tree | 847ac0162622bf08c9a1320cd824f78bc09a5a01 /ansible/roles/enable_iommu_on_boot/tasks/main.yml | |
parent | 36f0563490a4ee8f5b30eb7fe51a62d3b55c5b32 (diff) |
Enable iommu support in grub
JIRA: YARDSTICK-895
It's required for sriov standalone yardstick tests.
This part of commit message will be deleted:
This code will be enabled when https://gerrit.opnfv.org/gerrit/#/c/47957/ will be merged,
because it requires host reboot.
Change-Id: I0ec9cbf90a9d83d54e545fcf421b8baf206601a4
Signed-off-by: Jan Malanik <janx.malanik@intel.com>
Signed-off-by: Malanik Jan <janx.malanik@intel.com>
Diffstat (limited to 'ansible/roles/enable_iommu_on_boot/tasks/main.yml')
-rw-r--r-- | ansible/roles/enable_iommu_on_boot/tasks/main.yml | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/ansible/roles/enable_iommu_on_boot/tasks/main.yml b/ansible/roles/enable_iommu_on_boot/tasks/main.yml new file mode 100644 index 000000000..1b98a50b1 --- /dev/null +++ b/ansible/roles/enable_iommu_on_boot/tasks/main.yml @@ -0,0 +1,72 @@ +# Copyright (c) 2017 Intel Corporation +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +--- +- name: Set iommu_boot_params for Intel + set_fact: + iommu_boot_params: ' intel_iommu=on iommu=pt' + when: hostvars[inventory_hostname]['ansible_system_vendor'] == "Intel Corporation" + +- name: Set iommu_boot_params for AMD + set_fact: + 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 }}' + +- 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 someone else + command: "grep -o 'iommu' /etc/default/grub" + 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: '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: 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" |