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UEFI Forum Releases PI Spec 1.7

UEFI Forum Releases PI Spec 1.7
UEFI Forum Releases PI Spec 1.7

Some excitement:  the UEFI Forum officially released the newest version of the Platform Initialization spec, PI v1.7, today, 6 Feb 2019. D...

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9:26 PM
William Leara
0
9:26 PM

DMTF Unveils Revamped Education Section of its Website

DMTF Unveils Revamped Education Section of its Website
DMTF Unveils Revamped Education Section of its Website

The DMTF , beloved standards body for many BIOS-related specifications , has recently updated the Education section of the its web site.  S...

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7:00 AM
William Leara
0
manageability
7:00 AM

DMTF’s 2018 Year in Review

DMTF’s 2018 Year in Review
DMTF’s 2018 Year in Review

The DMTF publishes many system manageability standards of direct impact to the BIOS community.  For example: SMBIOS, Redfish, DASH, and PLD...

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10:46 AM
William Leara
0
manageability
10:46 AM

Fall 2018 UEFI Plugfest and Seminar Materials Now Available

Fall 2018 UEFI Plugfest and Seminar Materials Now Available
Fall 2018 UEFI Plugfest and Seminar Materials Now Available

The Fall 2018 UEFI Plugfest was held October 15 to October 19, 2018,  in Taipei, Taiwan this year.  The presentations are now available for ...

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7:00 AM
William Leara
0
conferences
7:00 AM
 
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welcome

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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popular

  • JEDEC Manufacturer IDs Are a Mess
    The Vendor ID .  Seems like a pretty prosaic topic.  What's to say?  Every vendor has a numeric identifier that is globally unique so th...
  • 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 ...
  • 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...
  • Introduction to Open Platform Firmware
    Platform firmware development faces a fundamental challenge: every silicon vendor brings its own initialization model, configuration schem...
  • EDID and DisplayID
    In " The Before Times" (think: 1980s), there was no way for graphics adapters and monitors to negotiate a common set of supported...
  • 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...

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latest UEFI specs

  • UEFI Spec 2.11
  • UEFI PI Spec 1.9
  • ACPI 6.5a

UEFI resources

  • presentations, podcasts, videos
  • white papers

UEFI blog roll

  • Vincent Zimmer's blog
    20 years of beyond bios
  • BIOS on StackOverflow
    Why load the value “01301h” into AX before invoking interrupt 10h?

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