Merge pull request openshift#69713 from orelmisan/dpdk-cluster-config

[virt] DPDK cluster config: Enable AlignCPUs

.travis.yml

@@ -8,20 +8,17 @@ jobs:
   include:
     - name: "Preview, validate, and build"
       before_install:
-      - if [ "$TRAVIS_BRANCH" != "main" ]; then chmod +x autopreview.sh && ./autopreview.sh; fi
+        - if [ "$TRAVIS_BRANCH" != "main" ]; then chmod +x autopreview.sh && ./autopreview.sh; fi
       install:
         - gem install --local _gemfiles/asciidoctor-2.0.20.gem _gemfiles/asciidoctor-diagram-plantuml-1.2023.10.gem _gemfiles/asciidoctor-diagram-ditaamini-1.0.3.gem _gemfiles/rexml-3.2.6.gem _gemfiles/asciidoctor-diagram-2.2.14.gem _gemfiles/rouge-4.1.3.gem
         - pip3 install pyyaml aura.tar.gz
       script:
-        # Fail if Asciidoctor encounters errors. Or if release notes has links to internal bugs. Pass otherwise. Then, build updated distros
         - chmod +x ./scripts/check-rn-link-perms.sh
         - ./scripts/check-rn-link-perms.sh || travis_terminate 1
         - chmod +x ./scripts/check-asciidoctor-build.sh
         - chmod +x ./scripts/get-updated-distros.sh
-        - ./scripts/check-asciidoctor-build.sh || travis_terminate 1
         - |
-          ./scripts/get-updated-distros.sh |
-            while read -r filename; do
+          while read -r filename; do
               if [ "$filename" == "_topic_maps/_topic_map.yml" ]; then python3 build.py --distro openshift-enterprise --product "OpenShift Container Platform" --version 4.15 --no-upstream-fetch || travis_terminate 1
 
               elif [ "$filename" == "_topic_maps/_topic_map_osd.yml" ]; then python3 build.py --distro openshift-dedicated --product "OpenShift Dedicated" --version 4 --no-upstream-fetch || travis_terminate 1
@@ -32,5 +29,5 @@ jobs:
 
               elif [ "$filename" == "_distro_map.yml" ]; then python3 build.py --distro openshift-enterprise --product "OpenShift Container Platform" --version 4.15 --no-upstream-fetch || travis_terminate 1
               fi
-            done
+          done < <(./scripts/get-updated-distros.sh)
         - if [ -d "drupal-build" ]; then python3 makeBuild.py || travis_terminate 1; fi

modules/virt-configuring-cluster-dpdk.adoc

@@ -100,6 +100,20 @@ $ oc patch hyperconverged kubevirt-hyperconverged -n {CNVNamespace} \
 Editing the `HyperConverged` CR changes a global setting that affects all VMs that are created after the change is applied.
 ====
 
+. If your DPDK-enabled compute nodes use Simultaneous multithreading (SMT), enable the `AlignCPUs` enabler by editing the `HyperConverged` CR:
++
+[source,terminal,subs="attributes+"]
+----
+$ oc patch hyperconverged kubevirt-hyperconverged -n {CNVNamespace} \
+    --type='json' -p='[{"op": "replace", "path": "/spec/featureGates/alignCPUs", "value": true}]'
+----
++
+[NOTE]
+====
+Enabling `AlignCPUs` allows {VirtProductName} to request up to two additional dedicated CPUs to bring the total CPU count to an even parity when using
+emulator thread isolation.
+====
+
 . Create an `SriovNetworkNodePolicy` object with the `spec.deviceType` field set to `vfio-pci`:
 +
 .Example `SriovNetworkNodePolicy` manifest