[AArch64] salt.control.virt support

Salt relies on a limiting libvirt_domain j2 template to generate the
XML it passes to libvirt for salt.control managed virtual machines.
For AArch64, we need to set up 3 XML nodes in a non-default way:
1. UEFI firmware (AAVMF) should be enabled by passing a pflash loader;
2. CPU mode should be 'host-passthrough';
3. QEMU machine type should be 'virt';

To allow configuring the above using pillar data:
- virtng module: implement functionality similar to upstream changes:
  * 219b84a512 virt module: Allow NVRAM unlinking on DOM undefine
    in develop, not in 2018.2;
  * 9cace9adb9 Add support to virt for libvirt loader
    in develop, not in 2018.2;
- virtng module: extend it with:
  * pass virt machine type to vm;
  * pass cpu_mode to vm;

JIRA: ARMBAND-404

Change-Id: Ib2123e7170991b3dfbdb42bd1a2baa5a4360b200
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/mcp/reclass/classes/cluster/mcp-odl-ha/infra/kvm.yml.j2 b/mcp/reclass/classes/cluster/mcp-odl-ha/infra/kvm.yml.j2
index ab0da39b3..09a490669 100644
--- a/mcp/reclass/classes/cluster/mcp-odl-ha/infra/kvm.yml.j2
+++ b/mcp/reclass/classes/cluster/mcp-odl-ha/infra/kvm.yml.j2
@@ -5,6 +5,7 @@
 # which accompanies this distribution, and is available at
 # http://www.apache.org/licenses/LICENSE-2.0
 ##############################################################################
+{%- import 'net_map.j2' as nm with context %}
 ---
 {%- if conf.MCP_VCP %}
 # NOTE(armband): we don't want to pull in salt.control for novcp
@@ -29,4 +30,12 @@ parameters:
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
               size: opendaylight.server
+{%- if conf.nodes[nm.ctl01.idx].node.arch == 'aarch64' %}
+              machine: virt
+              cpu_mode: host-passthrough
+              loader:
+                readonly: 'yes'
+                type: pflash
+                path: /usr/share/AAVMF/AAVMF_CODE.fd
+{%- endif %}
 {%- endif %}