Playing with the STM32MP2
Summary
The article narrates hands-on experiments with the STM32MP2, including bare-metal bring-up of a dual-core A35/M33 system, establishing a PCIe link to an FPGA, and diagnosing a silicon security vulnerability in the RISAF (Resource Isolation Slave) that can affect PCIe regions. It documents debugging steps, how RISAF initially blocked traffic, and how STMicroelectronics issued an advisory outlining the vulnerability. It combines hardware bring-up with a live security disclosure context.