diff --git a/zuul.d/base.yaml b/zuul.d/base.yaml
index 12408ea..7af1840 100644
--- a/zuul.d/base.yaml
+++ b/zuul.d/base.yaml
@@ -17,6 +17,8 @@
         USE_PYTHON3: true
         NETWORK_API_EXTENSIONS: "{{ (network_api_extensions_common + network_api_extensions_tempest) | join(',') }}"
         CIRROS_VERSION: 0.5.1
+        DEFAULT_IMAGE_NAME: cirros-0.5.1-x86_64-uec
+        DEFAULT_IMAGE_FILE_NAME: cirros-0.5.1-x86_64-uec.tar.gz
         BUILD_TIMEOUT: 784
       devstack_plugins:
         neutron: https://opendev.org/openstack/neutron.git
@@ -96,6 +98,14 @@
     name: neutron-tempest-plugin-scenario
     parent: neutron-tempest-plugin-base
     abstract: true
+    nodeset:
+      nodes:
+        - name: controller
+          label: nested-virt-ubuntu-focal
+      groups:
+        - name: tempest
+          nodes:
+            - controller
     description: |
       Perform setup common to all tempest scenario test jobs.
     vars:
@@ -108,8 +118,12 @@
           (^tempest.api.compute.servers.test_attach_interfaces)|\
           (^tempest.api.compute.servers.test_multiple_create)"
       devstack_localrc:
+        LIBVIRT_TYPE: kvm
+        LIBVIRT_CPU_MODE: host-passthrough
         PHYSICAL_NETWORK: default
         CIRROS_VERSION: 0.5.1
+        DEFAULT_IMAGE_NAME: cirros-0.5.1-x86_64-disk
+        DEFAULT_IMAGE_FILE_NAME: cirros-0.5.1-x86_64-disk.img
         IMAGE_URLS: https://cloud-images.ubuntu.com/minimal/releases/focal/release/ubuntu-20.04-minimal-cloudimg-amd64.img
         ADVANCED_IMAGE_NAME: ubuntu-20.04-minimal-cloudimg-amd64
         ADVANCED_INSTANCE_TYPE: ntp_image_256M
diff --git a/zuul.d/master_jobs.yaml b/zuul.d/master_jobs.yaml
index 0139f8e..99d7b43 100644
--- a/zuul.d/master_jobs.yaml
+++ b/zuul.d/master_jobs.yaml
@@ -527,6 +527,8 @@
         NETWORK_API_EXTENSIONS: "{{ (network_api_extensions_common + network_api_extensions_dvr) | join(',') }}"
         PHYSICAL_NETWORK: default
         CIRROS_VERSION: 0.5.1
+        DEFAULT_IMAGE_NAME: cirros-0.5.1-x86_64-uec
+        DEFAULT_IMAGE_FILE_NAME: cirros-0.5.1-x86_64-uec.tar.gz
         IMAGE_URLS: https://cloud-images.ubuntu.com/minimal/releases/focal/release/ubuntu-20.04-minimal-cloudimg-amd64.img
         ADVANCED_IMAGE_NAME: ubuntu-20.04-minimal-cloudimg-amd64
         ADVANCED_INSTANCE_TYPE: ntp_image_256M
diff --git a/zuul.d/queens_jobs.yaml b/zuul.d/queens_jobs.yaml
index a8fbec0..214df60 100644
--- a/zuul.d/queens_jobs.yaml
+++ b/zuul.d/queens_jobs.yaml
@@ -86,6 +86,8 @@
         NEUTRON_DEPLOY_MOD_WSGI: false
         USE_PYTHON3: false
         CIRROS_VERSION: 0.3.5
+        DEFAULT_IMAGE_NAME: cirros-0.3.5-x86_64-uec
+        DEFAULT_IMAGE_FILE_NAME: cirros-0.3.5-x86_64-uec.tar.gz
         NETWORK_API_EXTENSIONS: "{{ (network_api_extensions_common + network_api_extensions_tempest) | join(',') }}"
         TEMPEST_PLUGINS: /opt/stack/neutron-tempest-plugin
         Q_AGENT: openvswitch
@@ -139,6 +141,8 @@
       devstack_localrc:
         USE_PYTHON3: false
         CIRROS_VERSION: 0.3.5
+        DEFAULT_IMAGE_NAME: cirros-0.3.5-x86_64-uec
+        DEFAULT_IMAGE_FILE_NAME: cirros-0.3.5-x86_64-uec.tar.gz
         NETWORK_API_EXTENSIONS: "{{ network_api_extensions | join(',') }}"
         TEMPEST_PLUGINS: /opt/stack/neutron-tempest-plugin
         # NOTE(slaweq) some tests are not running fine with ubuntu minimal on
@@ -173,6 +177,8 @@
       devstack_localrc:
         USE_PYTHON3: false
         CIRROS_VERSION: 0.3.5
+        DEFAULT_IMAGE_NAME: cirros-0.3.5-x86_64-uec
+        DEFAULT_IMAGE_FILE_NAME: cirros-0.3.5-x86_64-uec.tar.gz
         Q_AGENT: linuxbridge
         NETWORK_API_EXTENSIONS: "{{ network_api_extensions | join(',') }}"
         TEMPEST_PLUGINS: /opt/stack/neutron-tempest-plugin
@@ -232,6 +238,8 @@
       devstack_localrc:
         USE_PYTHON3: false
         CIRROS_VERSION: 0.3.5
+        DEFAULT_IMAGE_NAME: cirros-0.3.5-x86_64-uec
+        DEFAULT_IMAGE_FILE_NAME: cirros-0.3.5-x86_64-uec.tar.gz
         TEMPEST_PLUGINS: /opt/stack/neutron-tempest-plugin
 
 - job:
@@ -256,5 +264,7 @@
       devstack_localrc:
         USE_PYTHON3: false
         CIRROS_VERSION: 0.3.5
+        DEFAULT_IMAGE_NAME: cirros-0.3.5-x86_64-uec
+        DEFAULT_IMAGE_FILE_NAME: cirros-0.3.5-x86_64-uec.tar.gz
         TEMPEST_PLUGINS: '"/opt/stack/designate-tempest-plugin /opt/stack/neutron-tempest-plugin"'
         ADVANCED_INSTANCE_TYPE: ds512M
diff --git a/zuul.d/rocky_jobs.yaml b/zuul.d/rocky_jobs.yaml
index 0c968c3..3b8b84f 100644
--- a/zuul.d/rocky_jobs.yaml
+++ b/zuul.d/rocky_jobs.yaml
@@ -460,6 +460,8 @@
         NETWORK_API_EXTENSIONS: "{{ (network_api_extensions_common + network_api_extensions_dvr) | join(',') }}"
         PHYSICAL_NETWORK: default
         CIRROS_VERSION: 0.5.1
+        DEFAULT_IMAGE_NAME: cirros-0.5.1-x86_64-uec
+        DEFAULT_IMAGE_FILE_NAME: cirros-0.5.1-x86_64-uec.tar.gz
         IMAGE_URLS: https://cloud-images.ubuntu.com/releases/bionic/release/ubuntu-18.04-server-cloudimg-amd64.img
         ADVANCED_IMAGE_NAME: ubuntu-18.04-server-cloudimg-amd64
         ADVANCED_INSTANCE_TYPE: ds512M