bifrost: Set vCPU model to 'host-passthrough'

The default CPU model of QEMU GenuineIntel/QEMU Virtual CPU is not the
best option for vCPU in terms of performance. As such, lets use the
real host CPU. This has also been submitted upstream and the template
should be removed once the upstream patch has been merged and the SHA
for bifrost is bumped.

Change-Id: I23d86933604c290d5650b73f420972d0a2b23dc8
Link: https://review.openstack.org/#/c/528677/
Signed-off-by: Markos Chandras <mchandras@suse.de>

2 files changed, 64 insertions, 0 deletions

diff --git a/bifrost/playbooks/roles/bifrost-create-vm-nodes/templates/testvm.xml.j2 b/bifrost/playbooks/roles/bifrost-create-vm-nodes/templates/testvm.xml.j2
new file mode 100644
index 00000000..15a99bfc
--- /dev/null
+++ b/bifrost/playbooks/roles/bifrost-create-vm-nodes/templates/testvm.xml.j2
@@ -0,0 +1,62 @@
+<domain type='{{ test_vm_domain_type }}'>
+  <name>{{ vm_name }}</name>
+  <memory unit='MiB'>{{ test_vm_memory_size }}</memory>
+  <vcpu>{{ test_vm_cpu_count }}</vcpu>
+  <os>
+    <type arch='{{ test_vm_arch }}' machine='{{ test_vm_machine }}'>hvm</type>
+    <boot dev='network'/>
+    <bootmenu enable='no'/>
+    <bios useserial='yes' rebootTimeout='10000'/>
+  </os>
+  <features>
+    <acpi/>
+    <apic/>
+    <pae/>
+  </features>
+  <cpu mode='{{ test_vm_cpu }}'>
+    <model fallback='allow'/>
+  </cpu>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>restart</on_crash>
+  <devices>
+    <emulator>{{ test_vm_emulator }}</emulator>
+    <disk type='file' device='disk'>
+      <driver name='qemu' type='qcow2' cache='{{ test_vm_disk_cache }}'/>
+      <source file='{{ vm_volume_path }}'/>
+      <target dev='vda' bus='virtio'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
+    </disk>
+    <controller type='ide' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+    </controller>
+    <interface type='network'>
+      <source network='{{ test_vm_network }}'/>
+    </interface>
+    <input type='mouse' bus='ps2'/>
+    <graphics type='vnc' port='-1' autoport='yes'/>
+    <video>
+      <model type='cirrus' vram='9216' heads='1'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+    </video>
+    <serial type='file'>
+      <source path='{{ vm_log_file }}'/>
+      <target port='0'/>
+      <alias name='serial0'/>
+    </serial>
+    <serial type='pty'>
+      <source path='/dev/pts/49'/>
+      <target port='1'/>
+      <alias name='serial1'/>
+    </serial>
+    <console type='file'>
+      <source path='{{ vm_log_file }}'/>
+      <target type='serial' port='0'/>
+      <alias name='serial0'/>
+    </console>
+    <memballoon model='virtio'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
+    </memballoon>
+  </devices>
+</domain>
diff --git a/bifrost/scripts/bifrost-provision.sh b/bifrost/scripts/bifrost-provision.sh
index d705f31f..ec46b1ef 100755
--- a/bifrost/scripts/bifrost-provision.sh
+++ b/bifrost/scripts/bifrost-provision.sh
@@ -102,6 +102,7 @@ ${ANSIBLE} ${XCI_ANSIBLE_VERBOSITY} \
        -i inventory/localhost \
        test-bifrost-create-vm.yaml \
        -e test_vm_num_nodes=${TEST_VM_NUM_NODES} \
+       -e test_vm_cpu='host-passthrough' \
        -e test_vm_memory_size=${VM_MEMORY_SIZE} \
        -e enable_venv=${ENABLE_VENV} \
        -e test_vm_domain_type=${VM_DOMAIN_TYPE} \
@@ -114,6 +115,7 @@ ${ANSIBLE} ${XCI_ANSIBLE_VERBOSITY} \
     -e use_cirros=${USE_CIRROS} \
     -e testing_user=${TESTING_USER} \
     -e test_vm_num_nodes=${TEST_VM_NUM_NODES} \
+    -e test_vm_cpu='host-passthrough' \
     -e inventory_dhcp=${INVENTORY_DHCP} \
     -e inventory_dhcp_static_ip=${INVENTORY_DHCP_STATIC_IP} \
     -e enable_venv=${ENABLE_VENV} \