diff --git a/ci-operator/step-registry/ipi/conf/powervc/ipi-conf-powervc-commands.sh b/ci-operator/step-registry/ipi/conf/powervc/ipi-conf-powervc-commands.sh
index e700e9ac6573b..c3461a7ac47dd 100755
--- a/ci-operator/step-registry/ipi/conf/powervc/ipi-conf-powervc-commands.sh
+++ b/ci-operator/step-registry/ipi/conf/powervc/ipi-conf-powervc-commands.sh
@@ -1,5 +1,10 @@
 #!/bin/bash
 
+# This script configures an OpenShift IPI installation on IBM PowerVC.
+# It validates the environment, installs required tools (PowerVC-Tool, yq),
+# provisions a bastion host with HAProxy, and generates the install-config.yaml
+# needed by the openshift-install binary.
+
 # Strict mode
 set -o nounset
 set -o errexit
diff --git a/ci-operator/step-registry/upi/install/libvirt/upi-install-libvirt-commands.sh b/ci-operator/step-registry/upi/install/libvirt/upi-install-libvirt-commands.sh
index 157fe8a0d4ad8..f4dfa8d0e6aad 100755
--- a/ci-operator/step-registry/upi/install/libvirt/upi-install-libvirt-commands.sh
+++ b/ci-operator/step-registry/upi/install/libvirt/upi-install-libvirt-commands.sh
@@ -499,6 +499,9 @@ create_node () {
     if [[ "$ARCH" == "ppc64le" ]]; then
       HTTPD_PORT="$(leaseLookup 'httpd-port')"
       EXTRA_ARGS="${EXTRA_ARGS} coreos.live.rootfs_url=http://${HOSTNAME}:${HTTPD_PORT}/${ROOTFS_NAME}"
+      # domain XML templates (domain-install-template.xml, domain-template.xml) in the
+      # cluster profile secret must use machine='pseries-rhel10.0.0' and cpu POWER10
+      # for hosts running CentOS Stream 10 / POWER10 (e.g. power-s2s leases on 10.130.41.76).
     fi
 
     # Boot artifacts names/paths were exported above upon creation