ESX can determine whether a virtual machine should use hardware support for virtualization. It makes this determination based on the processor type and the virtual machine. Overriding the automatic selection can provide better performance for some use cases.


In the vSphere Client inventory, right-click the virtual machine and select Edit Settings.


Click the Options tab and under Advanced, select CPU/MMU Virtualization.


Select an instruction set.


Use only software virtualization

Use hardware support for CPU virtualization (VT/AMD-V) only

Use hardware support for both CPU and MMU virtualization (VT/AMD-V and EPT/RVI)


Click OK to save your changes and close the dialog box.