vRTLmod: An LLVM based Open-source Tool to Enable Fault Injection in Verilator RTL Simulations

With an ever increasing utilization of open-source hardware, the demand for improved productivity in its various development phases rises. This demand can only be met by open-source tools accompanying these open-hardware projects to cover their crucial tasks in design, test, and verification. One of these required tasks is fault injection analysis. At early stages of development, it can help to identify vulnerabilities of the hardware designs. In this work, we propose the open-source tool vRTLmod which enables low overhead and scaling fault injection simulations at Register Tranfer Level (RTL).