In case you're wondering, the Hypervisor.framework C API is really neat and straightforward:

1. Creating and configuring a virtual machine:

    hv_vm_create(HV_VM_DEFAULT);

2. Allocating guest memory:

    void* memory = mmap(...);
    hv_vm_map(memory, guest_physical_address, size, HV_MEMORY_READ | HV_MEMORY_WRITE | HV_MEMORY_EXEC);

3. Creating virtual CPUs:

    hv_vcpu_create(&vcpu, HV_VCPU_DEFAULT);

4. Setting registers:

    hv_vcpu_write_register(vcpu, HV_X86_RIP, 0x1000); // Set instruction pointer
    hv_vcpu_write_register(vcpu, HV_X86_RSP, 0x8000); // Stack pointer

5. Running guest code:

    hv_vcpu_run(vcpu);

6. Handling VM exits:

    hv_vcpu_exit_reason_t reason;
    hv_vcpu_read_register(vcpu, HV_X86_EXIT_REASON, &reason);