Add SR-IOV support

This change adds options needed for configuting SR-IOV on
the Nova side.

Change-Id: I022391828c3fe15d4ed9dc4dbdc28ce8e91ca71f

service/files/defaults.yaml

@@ -38,6 +38,9 @@ configs:
       disk: 0.0
       ram: 0.0
 
+    sriov:
+      enabled: false
+
     ceph:
       enable: false
       pool_name: "vms"

service/files/nova.conf.j2

@@ -51,6 +51,21 @@ my_ip = {{ network_topology["private"]["address"] }}
 secure_proxy_ssl_header = HTTP_X_FORWARDED_PROTO
 {% endif %}
 
+{% if nova.sriov.enabled %}
+{% if nova.sriov.pci_alias %}
+pci_alias = [
+{%- for alias in nova.sriov.pci_alias -%}
+{%- if not loop.first %},{% endif -%}
+{"name": "{{ alias.name }}", "product_id": "{{ alias.product_id }}", vendor_id": "{{ alias.vendor_id }}"}
+{%- endfor %}]
+{% endif %}
+pci_passthrough_whitelist = [
+{%- for pci_dev in nova.sriov.pci_passthrough_whitelist -%}
+{%- if not loop.first %},{% endif -%}
+{"devname": "{{ pci_dev.devname }}", "physical_network": "{{ pci_dev.physical_network }}"}
+{%- endfor %}]
+{% endif %}
+
 {% if nova.console == 'novnc' %}
 [vnc]
 {% if nova.tls.enabled %}

service/nova-libvirt.yaml

@@ -27,6 +27,11 @@ service:
         - name: cgroup
           type: host
           path: /sys/fs/cgroup
+        # {% if nova.sriov.enabled %}
+        - name: dev
+          type: host
+          path: /dev
+        # {% endif %}
       pre:
         - name: nova-libvirt-bootstrap
           command: /tmp/nova-libvirt-bootstrap.sh