You can expose full CPU virtualization to the guest operating system so that applications that require hardware virtualization can run on virtual machines without binary translation or paravirtualization.
Prerequisites
Verify that the virtual machine compatibility is ESXi 5.1 and later.
Intel Nehalem Generation (Xeon Core i7) or later processors or AMD Opteron Generation 3 (Greyhound) or later processors.
Verify that Intel VT-x or AMD-V is enabled in the BIOS so that hardware assisted virtualization is possible.
Required Privileges:
set on the vCenter Server system.