On this tab, you can configure Oracle VM VirtualBox to use hardware virtualization extensions that your host CPU supports.

• Paravirtualization Interface: Oracle VM VirtualBox provides paravirtualization interfaces to improve time-keeping accuracy and performance of guest OSes. The options available are documented under the --paravirt-provider option in . For further details on the paravirtualization providers, see Paravirtualization Providers.

• Hardware Virtualization: You can configure hardware virtualization features for each virtual machine.

  • Enable Nested Paging: If the host CPU supports the nested paging (AMD-V) or EPT (Intel VT-x) features, then you can expect a significant performance increase by enabling nested paging in addition to hardware virtualization. For technical details, see Nested Paging and VPIDs. For Intel EPT security recommendations, see CVE-2018-3646.

  Advanced users may be interested in technical details about hardware virtualization. See Hardware Virtualization.

In most cases, the default settings on the Acceleration tab will work well. Oracle VM VirtualBox selects sensible defaults, depending on the OS that you selected when you created the virtual machine. In certain situations, however, you may want to change the preconfigured defaults.