Apple Silicon's 2-VM Bottleneck: Uncovering the Kernel Restrictions

Apple Silicon devices running macOS can only support 2 active virtual machines simultaneously—a limitation embedded directly in the kernel rather than enforced through userspace software. This constraint, rooted in Apple's software licensing agreement, significantly impacts developers and researchers who rely on multiple concurrent testing environments. The investigation into this kernel-level implementation opens pathways for understanding and potentially circumventing this restriction.