You can set the CPU mode for a VM instance via the following methods. Go to Settings > Global Settings > Advanced, and set Vm.cpuMode to host-model.

The following are three methods to set the CPU mode for a VM instance:
  • none: The VM CPU model is QEMU emulator.
  • host-model: The type of VM CPU model is host CPU.
  • host-passthrough: The VM CPU model is identical with the host CPU model.

Note:
  • When the CPU mode is host-model and host-passthrough, the VM instance can get nested virtualization.
  • Using the virtualization may influence hot migrations for the VM instance. When host migrations are performed, the VM CPU model will be checked. If CPU models of two hosts are different, hot migrations for the VM instance are failed.