Merge pull request #61982 from orelmisan/dpdk_checkup_tg_warning

CNV-30537: Warning about DPDK checkup traffic-gen's high privileges

Author: sjhala-ccs

modules/virt-checking-cluster-dpdk-readiness.adoc

@@ -23,6 +23,16 @@ You run a DPDK checkup by performing the following steps:
 * You have installed the OpenShift CLI (`oc`).
 * You have configured the compute nodes to run DPDK applications on VMs with zero packet loss.
 
+[IMPORTANT]
+====
+The traffic generator pod created by the checkup has elevated privileges:
+
+* It runs as root.
+* It has a bind mount to the node's file system.
+
+The container image of the traffic generator is pulled from the upstream Project Quay container registry.
+====
+
 .Procedure
 
 . Create a `ServiceAccount`, `Role`, and `RoleBinding` manifest for the DPDK checkup and the traffic generator pod: