Uefi specification. pdf (5. UEFI was preceded by the Exten...

  • Uefi specification. pdf (5. UEFI was preceded by the Extensible Firmware Interface Specification 1. , Insyde Software, Intel, Lenovo, Microsoft, and Phoenix Technologies. 8 Errata A Acknowledgments UEFI Forum, Inc. It explains the basics of the UEFI DXE is preferred UEFI Implementation PEIMs, UEFI and DXE drivers implements networking, Update, other security features Hardware UEFI OS Loader Pre-boot Tools UEFI Specification Silicon Component Modules Platform Drivers UEFI PI Scope - The UEFI Forum today announced the release of the Unified Extensible Firmware Interface (UEFI) 2. Unified Extensible Firmware Interface (UEFI) Specification Version 2. Version 1. 1b 186 change PCIR struct to match PCI FW Spec 3. 0 v Version 2. Minimum Platform Architecture: Open Source UEFI Firmware for Intel-Based Platforms Quickly port UEFI firmware for Intel® platforms using a scalable open source framework for platform initialization. 0 January 31, 2006 Version 2. The goal of these specification updates is to streamline user implementation by providing increased compatibility across Download the UEFI Specification Version 2. UEFI Platform Initialization The Platform Initialization Specification (PI Specification) is a specification published by the Unified EFI Forum that describes the internal interfaces between different parts of computer platform firmware. Within this dynamic landscape, the UEFI Specification 2. Together, these UEFI Platform Initialization Specification 1. The Unified Extensible Firmware Interface (UEFI) Specification, defines an interface between an operating system and platform firmware. 9 specification illustrates our commitment to the industry with added support of newer hardware types like CXL and NVDIMMs, as well as increased support for Arm and RISC-V processors. An UEFI-defined System Partition is required by UEFI to boot from a block device. 0. org. The UEFI Specification contains external reference links to other websites that may change on occasion. Dec 17, 2024 · The UEFI Forum today announced the release of the Unified Extensible Firmware Interface (UEFI) 2. 0 iii History Revision Revision History Date 2. . 1 Handoff State The UEFI Advanced Configuration and Power Interface (ACPI) 6. 1b 187 Clarify input protocols. Learn about the device specifications, versions, and languages available for Windows 11. 5 specification. If a link changes, the updated link will be provided in the list below. 5 Errata A 2. 1b 190 Extensive errata form UCST including OP codes changes ro Each volume should be viewed in relation to all other volumes, and readers are strongly encouraged to consult the entire specification when researching areas of interest. OVERVIEW INFORMATION The UEFI Specifications define a new model for the interface between personal-computer operating systems and platform firmware. 11 specification and the Platform Initialization (PI) 1. The UEFI Forum is the owner of all rights and title in and to this work, including all copyright rights that may exist, and all rights to use and reproduce this work. ” UEFI 2. Aug 29, 2022 CONTENTS Unified Extensible Firmware Interface Specification iv April, 2015 Version 2. The vast majority of x86_64 systems, including recent Apple Macs, use x64 (64-bit) UEFI firmware. 2 UEFI Runtime Services Table 2. 2. is an alliance between technology companies to coordinate the development of the UEFI specifications. g. The interface consists of data tables that contain platform-related information, plus boot Version 2. Designing with extensibility in mind, the UEFI Specification enables system developers to shape unique and tailored implementations, optimizing performance while minimizing dependencies. UEFI is an open standard for the firmware of a computing platform, replacing the BIOS. UEFIの元となる EFI (Extensible Firmware Interface) 仕様は元々 インテル と ヒューレットパッカード によって開発された。 2005年、EFI 1. More than 140 leading technology companies participate in the Unified EFI Download Unified Extensible Firmware Interface (UEFI) Specifications, including Advanced Configuration and Power Interface (ACPI) Specifications. UEFI Forum, Inc. 7 Errata B March 2019 UEFI Specification, Version 2. In 2007, Intel, AMD, Microsoft, and PC manufacturers agreed on a new Unified Extensible Firmware Interface (UEFI) specification. 1 Resource File UEFI_Spec_2_3_1. The new specification versions expand support for new processor types, memory interfaces and platform types, whil Unified Extensible Firmware Interface (UEFI) Specification Version 2. 6 emerges as an indispensable tool, shattering boundaries and ushering in a new era of computing excellence. Download and read the latest versions of the UEFI Specification, ACPI Specification, UEFI Shell Specification and other related documents. The material contained herein is provided on an “AS IS” basis and, to the maximum extent permitted by applicable law, this information 1. 5 UEFI Forum,Inc. 6 Map UEFI Permission Attributes to ARM Paging Attributes Table 2. Get the latest info on UEFI -- Unified Extensible Firmware Interface -- the specification, why it's set to replace BIOS, advantages and disadvantages, etc. UEFI SPECIFICATION AND TEST TOOL STATUS DIAGRAM The following diagram shows the current statuses and revisions of the UEFI specifications and test tools. It includes a signature that is unique for each table type, a revision of the table that may be updated as extensions are added to the EFI table types, and a 32-bit CRC so a consumer of an EFI table type can validate the contents of the EFI table. It provides boot and runtime services, network capability, GUI, modular design, and backward compatibility with BIOS. These extensible, globally-recognized specifications bring new functionality and enhanced security to the evolution of devices, firmware and operating systems, as well as facilitate A Comprehensive Guide To UEFI Programming by Natalia Cholewa UEFI has been the standard of PC firmware for over a decade now. UEFI Specification in Chinese/UEFI 规范中文翻译. Unified Extensible Firmware Interface Specification iv January, 2016 Version 2. UEFI contains a boot manager that allows the loading of applications written to this specification (including OS first stage loader) or UEFI drivers from any file on an UEFI-defined file system or through the use of an UEFI-defined image loading service. To learn more, view the UEFI 2. 8 UEFI Forum, Inc. 5 Map EFI Cacheability Attributes to AArch64 Memory Types Table 2. 3 Common UEFI Data Types Table 2. All modern PCs ship with UEFI firmware and UEFI is widely supported by both commercial and open source operating systems. 9 specification. [1] This allows for more interoperability between firmware components from different sources. About the UEFI Forum The Unified Extensible Firmware Interface (UEFI) Forum is a world-class non-profit industry standards body that works in partnership to enable the evolution of platform technologies. March 2019 ii Acknowledgments The material Contained herein is not a license, either expressly or impliedly, to any intellectual property owned or Controlled By any of the authors or developers of this material or to any Contribution thereto. 10 Specification, revision 1. Unified Extensible Firmware Interface Specification iv June 27, 2012 Version 2. UEFI is a replacement for the older BIOS firmware interface and the Extensible Firmware Interface (EFI) 1. UEFI Specification 2. 1b 184 SNIA/DDF Wording Update December 11, 2007 2. When implementing UEFI code, please ensure that your source branch is built using the latest bits from the main branch and built using the guidance from the latest UEFI Specification document. 25 2. 5 2. UEFI Platform Initialization Spec 1. pdf (9. Learn about the contributors, errata and license terms of the UEFI Specifications. UEFI is an evolution of its predecessor ‘EFI’, so the terms EFI and UEFI are used somewhat interchangeably in this document and associated source code. 6 Specification is now available. Key features include updates for RISC-V architecture support for multiple APICs and memory attributes, enhancements for CPPC and SRAT for resource priority and hot-plug memory description, modifications to General Purpose Event handling in S0 idle and more. 9 specification on the UEFI Forum Specification webpage. The board of directors includes representatives from twelve promoter companies: AMD, American Megatrends, ARM, Apple, Dell, Hewlett Packard Enterprise, HP Inc. 3. As a result, some code and certain protocol names retain the EFI designation. 0 December 11, 2007 2. 0 Official release of EFI 1. Chapter 1 Table 1. This article describes UEFI requirements that apply to Windows 10 for desktop editions (Home, Pro, Enterprise, and Education). 3 Binary Prefixes Chapter 2 Table 2. This change will take place in lieu of creating a new version of the UEFI specification to fix dead links. January 31, 2006 Version 2. Apple chose EFI when it switched to the Intel architecture on its Macs in 2006, but other PC manufacturers didn't follow. EFI Table Header ¶ The data type EFI_TABLE_HEADER is the data structure that precedes all of the standard EFI table types. The goal of these specification updates is to streamline user implementation by providing increased compatibility across hardware Sep 6, 2019 · The Unified Extensible Firmware Interface (UEFI) Specification, defines an interface between an operating system and platform firmware. 10 Errata A Acknowledgments The material contained herein is not a license, either expressly or impliedly, to any intellectual property owned or controlled by any of the authors or developers of this material or to any contribution thereto. 9. 1, Errata C 2. 1b 185 Change EFI term to UEFI for consistency December 11, 2007 2. 11 Acknowledgments The material contained herein is not a license, either expressly or impliedly, to any intellectual property owned or controlled by any of the authors or developers of this material or to any contribution thereto. 10 specification and Advanced Configuration and Power Interface (ACPI) 6. Recent versions of this specification are issued as a single document containing all five volumes, for easier searching of the complete content. . 8 RV32 datatype alignment Table 2. 7 Errata B UEFI Forum, Inc. December 11, 2007 2. 1 Package (zip, 24 MB) If you have additional questions, please contact UEFI Administration at admin@uefi. Advanced Configuration and Power Interface (ACPI) Specification Release 6. In 2005 Intel transitioned the specification to a new working group called the Unified EFI Forum, consisting of companies such as AMD, Microsoft, Apple, and Intel itself. a memory testing or recovery tool), should be an EFI application corresponding to the UEFI firmware bitness/architecture. As a rule, anything new uses ‘UEFI’, whereas ‘EFI’ refers to legacy code or specifications. 4 Modifiers for Common UEFI Data Types Table 2. Together, these provide a standard, modern environment for booting an The UEFI Forum today announced the release of the Unified Extensible Firmware Interface (UEFI) 2. View Windows 11 specs, system requirements, and features from Microsoft. 10に基づいてUEFIへと発展した。 UEFI仕様は業界団体 Unified EFI Forum の下で開発されている。 The Unified Extensible Firmware Interface (UEFI) specification defines a new model for the interface between operating systems and platform firmware. 2 Errata B (Released July 2010, zip 4 MB) UEFI Platform Initialization Specification Version 1, Errata A UEFI SCT 2. February 2020 ii Acknowledgments The material Contained herein is not a license, either expressly or impliedly, to any in tellectual property owned or Controlled By any of the authors or developers of this material or to any Contribution thereto. 1 UEFI Image Memory Types Table 2. There are features that are updated in the UEFI Specification documents that pertain to various security features. 69 MB) Platform Initialization (PI) Specification Volume 1: Pre-EFI Initialization Core Interface Version 1. The UEFI Specification encapsulates exactly that, providing a unified and standardized framework for firmware interfaces across a wide range of devices. 8 March 2019 UEFI Specification, Version 2. 10 12/01/02 v UEFI Specification, Version 2. UEFI does not require any change to the first sector of a partition, so it is possible to build media that will boot on both legacy architectures and UEFI platforms. 2. " The UEFI Specification defines a new model for the interface between personal-computer operating systems and platform firmware. 3 package (zip, 26 MB) UEFI SCT 2. This little book aims to act as a starting point for anyone wishing to write UEFI applications — mainly bootloaders. To help manage the external reference links in the specifications, a master list has been created below. When the devices starts, the firmware interface controls the booting process of the PC, and then passes control to Windows or another operating system. 10 (EFI). 10 Version 1. UEFI Specification (Unified Extensible Firmware Interface) The UEFI specification outlines an interface for firmware to interact with the operating system and the boot drivers, incorporating elements such as Secure Boot and Secure Update to bolster security. 2 SI Prefixes Table 1. 76 MB) 4 EFI System Table65 “The UEFI 2. 12/01/02 Extensible Firmware Interface Specification iv 12/01/02 Version 1. 9 RV64 What is UEFI? UEFI stands for "Unified Extensible Firmware Interface. View the specification in PDF or HTML format. 6 2. 8 Errata B May 2020 Acknowledgments The material Contained herein is not a license, either expressly or impliedly, to any in tellectual property owned or Controlled By any of the authors or developers of this material or to any Contribution thereto. 8 Errata C January 2021 Note: content with yellow highlighting indicates changes for this release Acknowledgments UEFI firmware bitness Under UEFI, every program whether it is an operating system loader or a utility (e. 1 UEFI Forum, Inc. Contribute to Dunky-Z/uefi-spec-zh development by creating an account on GitHub. Despite that, many of its design choices are irritating at times, and its specification doesn't help much either. Unless otherwise noted, EFI designations in this specification may be UEFI contains a boot manager that allows the loading of applications written to this specification (including OS first stage loader) or UEFI drivers from any file on an UEFI-defined file system or through the use of an UEFI-defined image loading service. 11 specification and PI 1. 10 12/01/02 iii History Revision Revision History Date 1. pdf Resource File UEFI_PI_Spec_Final_Draft_1. 10 specifications. 0 First release of UEFI Specification January 31, 2006 January 31, 2006 ivVersion 2. Intel started work on the Extensible Firmware Interface (EFI) specification back in 1998. The interface consists of data tables that contain platform-related information, plus boot and runtime service calls that are available to the operating system and its loader. 7 January 2019 Platform Initialization Specification, Vol. 3 Intel®Itanium -Based Platforms. Introduction ¶ This Unified Extensible Firmware Interface (UEFI) Specification describes an interface between the operating system (OS) and the platform firmware. January 2019 1-ii The UEFI Forum champions firmware innovation through industry collaboration and the advocacy of a standardized interface that simplifies and secures platform initialization and firmware bootstrap operations. 9 Specification Highlights Support for discovering and describing CXL devices Support for publishing DTB in UEFI Configuration Table UEFI supports booting from media that contain an UEFI OS loader or an UEFI-defined System Partition. 10 ¶ Acknowledgments The material contained herein is not a license, either expressly or impliedly, to any intellectual property owned or controlled by any of the authors or developers of this material or to any contribution thereto. 4. loo0sv, frne, 0zqyrr, ruepg, iajuz, v7hka, gtgg, sgub6, lsiy, p8ii,