Error: "Invalid virtual machine configuration. A virtual IOMMU should always be enabled for a VCPU count of more than 128." when attempting to deploy VMs

Products

• VCF Operations/Automation (formerly VMware Aria Suite)

Issue/Introduction

When deploying a vm from Aria Automation with a large number of CPU > 128 you can get the following error 

Invalid virtual machine configuration. A virtual IOMMU should always be enabled for a VCPU count of more than 128.

Environment

Aria Automation all versions

Cause

There is a setting in vCenter that is needed if CPU count is great then 128.

Resolution

Enable iOMMU check box under vCPU on the vCenter template that is being deployed from Aria Automation.