That's _Intel's_ implementation - only one hypervisor may control Virtualization even on your beloved Linux e.g.: https://unix.stackexchange.com/questions/14941

That's _Intel's_ implementation - only one hypervisor may control Virtualization even on your beloved Linux e.g.: https://unix.stackexchange.com/questions/149416/run-avd-and-virtualbox-at-the-same-time https://unix.stackexchange.com/questions/149416/run-avd-and-... or just search on how people can't run kvm and vbox at the same time.