Per-VM EVC is disabled by default. You can enable, disable, and change the EVC mode of a virtual machine to ensure its seamless migration across clusters, vCenter Server systems, and data centers that have different processors.

To check what the EVC mode of a virtual machine is, see Determine the EVC Mode of a Virtual Machine.

Prerequisites

Power off the virtual machine

  • Power off the virtual machine.

Procedure

  1. Navigate to a virtual machine in the vCenter Server inventory.
  2. On the Configure tab, select VMware EVC.
    The pane shows details about the EVC mode of the virtual machine and CPUID details.
    Important: For newly created virtual machines, the EVC mode that shows in the VMware EVC pane is disabled.

    For powered off virtual machines, the VMware EVC pane always shows the EVC status defined at the virtual machine level.

    For powered on virtual machines with per-VM EVC enabled, the VMware EVC pane shows the EVC status defined at the virtual machine level.

    For powered on virtual machines with per-VM EVC disabled, the VMware EVC pane shows the EVC mode that the virtual machine inherits from its parent EVC cluster or host.

  3. Click the Edit button.
    Option Description
    Disable EVC The EVC feature is disabled for the virtual machine. When you power on the virtual machine, it inherits the feature set of its parent EVC cluster or host.
    Enable EVC for AMD hosts The EVC feature is enabled for AMD hosts.
    Enable EVC for Intel hosts The EVC feature is enabled for Intel hosts.
    Custom This option is visible only if you have customized the EVC mode of the virtual machine through the API calls.
  4. In the Change EVC Mode dialog box, select whether to enable or disable EVC.
    Option Description
    Disable EVC The EVC feature is disabled for the virtual machine. When you power on the virtual machine, it inherits the feature set of its parent EVC cluster or host.
    Enable EVC for AMD hosts The EVC feature is enabled for AMD hosts.
    Enable EVC for Intel hosts The EVC feature is enabled for Intel hosts.
    Custom This option is visible only if you have customized the EVC mode of the virtual machine through the API calls.
  5. (Optional) From the VMware EVC Mode drop-down menu, select a baseline CPU feature set.
    Important: If the virtual machine is in an EVC cluster and the per-VM EVC mode exceeds the EVC mode for the cluster, the virtual machine fails to power on. The baseline CPU feature set for the virtual machine must not contain more CPU features than the baseline CPU feature set of the cluster.
  6. Click OK.