Stephano Cetola

Over the past decade the Unified Extensible Firmware Interface (UEFI) has become the primary standard for boot firmware. However, the complexity of the UEFI spec and the myriad of implementation choices can be confusing to even experienced developers. Fortunately, there are a growing number of open source UEFI implementations for different architectures, making it easier to explore the world of firmware.

This session will provide an overview of UEFI and show working examples based on two maker platforms: BeagleBone Black and the Aaeon’s UP Squared board. Everything from “lightweight” implementations to full UEFI stacks will be examined, using a variety of open source projects (TianoCore, U-Boot, coreboot, and Slim Bootloader).

Questions this talk should answer:
-What is the goal of the UEFI spec and what are some popular implementations?
-How do I replace the stock firmware on my board with open source UEFI?
-What are the benefits of running TianoCore rather than something more lightweight like coreboot or Slim Bootloader?
-How does U-Boot implement UEFI, and how does it differ from EDK II?

Other people: Alexander Graf

This workshop demonstrates how to use the Intel® UEFI Development Kit (Intel® UDK) Debugger with GNU Debugger (GDB) to debug UEFI drivers and platform firmware in a Linux environment. Exercises are based on EFI Development Kit II (EDK II) firmware for the Open Virtual Machine Firmware (OVMF) project. Participants will set up an EDK II development environment for Linux, build a UEFI driver, and debug firmware issues using Linux and QEMU. The workshop demonstrates debug capabilities built into EDK II and how they work with UEFI drivers and platform firmware: • Use the Platform Configuration Database (PCD) to configure debug features • How to debug the various phases of UEFI firmware • Build a UEFI Driver with Debug Symbols • Build a UEFI Driver with Heap Guard Enabled Installing Docker instructions, please click on workshop material https://github.com/tianocore/tianocore.github.io/wiki/Container-for-OSFC-Workshops

Other people: Brian Richardson Laurie Jarlstrom

Python* is a popular high-level interpreted language, common in automated testing environments. TianoCore includes an open source CPython implementation for UEFI, but it has limited functionality and isn’t compliant with current Python standards. This session describes the process of porting MicroPython to UEFI. MicroPython is a Python 3 variant designed for microcontrollers. Memory and size optimizations make MicroPython ideal for pre-OS applications. This presentation describes implementation details, performance metrics, and an open source test framework based on the MicroPython engine for UEFI.

Other people: Brian Richardson

This workshop demonstrates how to compile and build UEFI platform firmware based on the open source EDK II framework at tianocore.org. Examples are based on the Open Virtual Machine Firmware (OVMF) project, which generates a firmware for the Quick Emulator (QEMU) environment under Linux*. Further examples show the benefits of using OVMF to understand UEFI and EDK II architecture. Participants will set up an EDK II development environment for Linux, build the OVMF platform, use their custom firmware to boot a QEMU environment, boot to the UEFI Shell, and explore common UEFI Shell commands used for firmware debugging. Installing Docker instructions, please click on workshop material: https://github.com/tianocore/tianocore.github.io/wiki/Container-for-OSFC-Workshops

Other people: Brian Richardson Laurie Jarlstrom