Merge pull request #82 from stackhpc/aarch64

Add aarch64 libvirt host support

Author: mnasiadka

README.md

@@ -62,6 +62,9 @@ Technology (VT) is enabled in order to run this role. While this provides
 better VM performance, it may not be available in certain environments. The
 default value is `true`.
 
+`libvirt_host_arch`: Architecture of the libvirt host. This defaults to
+`ansible_facts.architecture`.
+
 `libvirt_host_qemu_emulators`: List of architectures for which to install QEMU
 system emulators, e.g.  `x86`. The default value is `['x86']` if
 

defaults/main.yml

@@ -25,6 +25,9 @@ libvirt_host_networks: []
 # be available in certain environments.
 libvirt_host_require_vt: true
 
+# Architecture of the libvirt host.
+libvirt_host_arch: "{{ ansible_facts.architecture }}"
+
 # List of architectures for which to install QEMU system emulators, e.g. x86.
 libvirt_host_qemu_emulators: "{{ [] if libvirt_host_require_vt | bool else ['x86'] }}"
 

tasks/validate.yml

@@ -1,14 +1,26 @@
 ---
-- name: Verify that Virtualization Technology (VT) is enabled
+- name: Verify that Virtualization Technology (VT) is enabled on x86_64
   command: grep -c -E 'svm|vmx' /proc/cpuinfo
   check_mode: False
   changed_when: False
   failed_when: False
-  register: result
+  register: x86_vt_result
+  when: libvirt_host_arch == 'x86_64'
+
+- name: Verify that KVM is available on non-x86_64
+  stat:
+    path: /dev/kvm
+  register: kvm_device
+  when: libvirt_host_arch != 'x86_64'
 
 - name: Set a fact about whether Virtualization Technology (VT) is enabled
   set_fact:
-    libvirt_host_vt_enabled: "{{ result.rc == 0 }}"
+    libvirt_host_vt_enabled: >-
+      {{
+        (x86_vt_result.rc == 0)
+        if libvirt_host_arch == 'x86_64'
+        else kvm_device.stat.exists
+      }}
 
 - name: Notify if Virtualization Technology (VT) is disabled
   debug:

vars/Debian.yml

@@ -1,7 +1,7 @@
 ---
 # List of package dependencies common to all Debian distributions
 libvirt_host_libvirt_packages_common:
-  - qemu-system-x86
+  - "{{ 'qemu-system-arm' if libvirt_host_arch == 'aarch64' else 'qemu-system-x86' }}"
 
 # List of all daemon packages to install.
 libvirt_host_libvirt_packages_libvirt_daemon:
@@ -28,7 +28,7 @@ libvirt_host_libvirt_packages_client_default:
 
 # Packages that are only necessary if you require EFI support
 libvirt_host_packages_efi:
-  - ovmf
+  - "{{ 'qemu-efi-aarch64' if libvirt_host_arch == 'aarch64' else 'ovmf' }}"
 
 # Packages for RBD volume pool support
 libvirt_host_packages_rbd_volume_pool:

vars/RedHat.yml

@@ -28,8 +28,11 @@ libvirt_host_packages_efi_by_version:
   10:
     - edk2-ovmf
 
+libvirt_host_packages_efi_aarch64: >-
+  {{ [] if ansible_facts.distribution_major_version | int == 7 else ['edk2-aarch64'] }}
+
 libvirt_host_packages_efi: >-
-  {{ libvirt_host_packages_efi_by_version[ansible_facts.distribution_major_version | int] }}
+  {{ libvirt_host_packages_efi_aarch64 if libvirt_host_arch == 'aarch64' else libvirt_host_packages_efi_by_version[ansible_facts.distribution_major_version | int] }}
 
 # Packages for RBD volume pool support
 libvirt_host_packages_rbd_volume_pool:
@@ -61,7 +64,10 @@ libvirt_host_custom_yum_repos_efi_by_version:
   10: []
 
 libvirt_host_custom_yum_repos: >-
-  {{ libvirt_host_custom_yum_repos_efi_by_version[ansible_facts.distribution_major_version | int] }}
+  {{
+    [] if libvirt_host_arch == 'aarch64'
+    else libvirt_host_custom_yum_repos_efi_by_version[ansible_facts.distribution_major_version | int]
+  }}
 
 # These are passed to the lineinfile module to customize configuration files
 libvirt_host_lineinfile_extra_rules: