Less Is More: From 1M Lines of Firmware to 300 of Assembly
Summary
The article describes replacing OVMF with a minimal 300-line assembly-based firmware to harden confidential VM enclaves, reducing attack surface by moving much of the boot and measurement logic into build time. It argues that smaller, auditable code, aided by LLM-assisted review and formal verification, offers a more secure and verifiable approach than large, feature-rich firmware.