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January 2020

UPDATED: Spring 2020 UEFI Plugfest

UPDATED:  Spring 2020 UEFI Plugfest
UPDATED: Spring 2020 UEFI Plugfest

Due to COVID-19, the Spring 2020 UEFI Plugfest has moved to a virtual meeting.  Details below. From the UEFI Forum: Hello UEFI Fo...

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William Leara
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Welcome to the Basic Input/Output website! Here I share things pertaining to the arcane art of PC BIOS development. For spice, I add material about software development in general and some interesting computer history vignettes. Please, try to contain your excitement!
—William Leara
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  • Introduction to Slim Bootloader
    Slim Bootloader (SBL) is an open-source boot firmware built from the ground up for Intel x86 systems. Designed to be small, fast, and secure...
  • Reverse Engineering UEFI with Ghidra
    Ghidra is a free and open-source tool for software reverse engineering.  It is extensible, and allows for application-specific capabilities...
  • Guide to the SWEBOK v4.0 Has Been Released
    The Guide to the Software Engineering Body of Knowledge (SWEBOK) v4.0 was released on October 15, 2024. The Guide is a publication of the ...
  • UEFI Forum Updates All Specs, Dec 2024
    The UEFI Forum updated all three of its specifications in December, 2024:  ACPI, UEFI, and PI. As a refresher: Advanced Configuration and P...
  • A Tour of Intel CHIPSEC
    CHIPSEC is a framework for analyzing the security of PC platforms, including their hardware, BIOS, and platform configuration.  It includes...
  • UEFITool
    Here’s a handy tool for interrogating firmware volumes:  UEFITool !  It is written by Nikolaj Schlej , and is great for examing the Regions/...

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latest UEFI specs

  • UEFI Spec 2.11
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  • ACPI 6.5a

UEFI resources

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UEFI blog roll

  • BIOS on StackOverflow
    How to get memory regions and store into a list on 0x00EFFFFF to 0x1CFFFFF (14MB) in kernel?
  • Vincent Zimmer's blog
    Wind Energy and the Long Arc: Cornell Engineer, December 1990

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