I've got a FreeBSD server running two guests in bhyve. I want to run a third guest using VirtualBox (as this guest requires features not available with bhyve), but this leads to a problem if acceleration is left enabled:
VBoxManage: error: VT-x is being used by another hypervisor (VERR_VMX_IN_VMX_ROOT_MODE).
If I disable virtualization on the VirtualBox guest and then try to start it, the host panics. Is there any way to run a VirtualBox guest alongside bhyve guests on the same host?