Is it possible to add or remove VMCI devices from a virtual machine?

The correct answer indicates that it is not possible to add or remove Virtual Machine Communication Interface (VMCI) devices from a virtual machine after it has been created. VMCI devices are typically associated with the VM's operating environment, and their presence is predefined at the creation stage.

In most virtual machine configurations, certain devices, including VMCI, are established as part of the initial setup to facilitate communication between the host and guest operating systems, which is crucial for advanced functions. Modifying the hardware configuration of a virtual machine typically allows changes to several components, but VMCI devices are generally maintained for performance and stability reasons once the VM is operational.

Understanding this aspect illustrates the constraints placed on virtual hardware configurations and emphasizes the importance of planning the deployment of virtual machines with the correct settings for communication requirements from the outset.