MachineConfig selector is not valid

[rgordill]

The MCO selects the configuration based on the selector from MachineConfigPools. MC selectors do not exists, as can be extracted from https://docs.openshift.com/container-platform/4.17/rest_api/machine_apis/machineconfigpool-machineconfiguration-openshift-io-v1.html.

Though,

intel-technology-enabling-for-openshift/machine_configuration/100-intel-iommu-on.yaml

Lines 16 to 18 in 641e777

	selector:
	intel.feature.node.kubernetes.io/qat: 'true'
	intel.feature.node.kubernetes.io/dsa: 'true'

is not valid. For selecting only some nodes, a new MCP with the feature selectors should be created.

[rgordill]

Or maybe it is easier (and more elegant) using Note Tuning Operator (https://docs.openshift.com/container-platform/4.17/scalability_and_performance/using-node-tuning-operator.html) with bootloader option on those nodes.