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Extensible Firmware Interface Specification Update

This document is an update to the Extensible Firmware Interface Specification, version 1.10. This document is a compilation of documentation errata and specification clarifications and changes. It is intended for software developers of applications, operating systems, or tools.

We have endeavored to include all documented errata in the consolidation process; however, we make no representations or warranties concerning the completeness of the Specification Update. This document may also contain information that was not previously published.

This document contains the errata, specification changes and clarifications, and documentation changes to the Extensible Firmware Interface Specification, version 1.10 (hereafter referred to as the “EFI 1.10 Specification”). This document contains clarifications and corrections to the EFI 1.10 Specification based on industry feedback.

This document is broken into the following sections:
• Specification changes
• Errata
• Specification clarifications and corrections
• Documentation changes The specific changes in each section are numbered and grouped by chapter in the EFI 1.10 Specification.

In each subsection, changes are listed in order by page number. If a page number is not listed, then no changes were made to the EFI 1.10 Specification on that page. This document is intended to be used along with the EFI 1.10 Specification.

Read the full Extensible Firmware Interface Specification update.