[RHV 4.4] host fails to add in RHV manager with warning "missing the CPU flags: spec_ctrl"

Solution Verified - Updated -

Issue

  • Cluster CPU Type to Secure Intel Skylake Server Family and the new host fails to add in Red Hat Virtualization 4.4 Manager with the following ERROR:
The host CPU does not match the Cluster CPU Type and is running in a degraded mode. It is missing the following CPU flags: spec_ctrl. Please update host CPU microcode or change the Cluster CPU Type.

Environment

  • Red Hat Virtualization 4.4.x

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