There's the Hypervisor framework, which is the low-level framework that replaces the need for a kernel extension for type 2 hypervisors, and then there's the mo

There's the Hypervisor framework, which is the low-level framework that replaces the need for a kernel extension for type 2 hypervisors, and then there's the more recent Virtualisation framework which is a more high-level framework for running VMs. QEMU's HVF uses the Hypervisor framework, and UTM also supports running VMs with the Virtualization framework (which is what Vimy and Viable also use). Note that the Virtualization framework also has support on Apple Silicon for running macOS guests as well as Linux guests.