#Qemu

Building Xilinx Yocto (Scarthgap 5.0.4) Inside Docker

Published at December 1, 2025 ·  2 min read

A practical guide to building and running Xilinx’s Yocto Scarthgap (Release 5.0.4) in a clean Docker environment, including repo initialization, bitbake setup, Dockerfile explanation, and Xen builds.

PCIe, BAR0, and DMA Explained with QEMU

Published at September 24, 2025 ·  9 min read

Deep dive into how PCIe BAR0 registers control DMA engines, how devices become Bus Masters, and how to debug the logic with QEMU and Linux kernel drivers.