Abstract
In PCs, the firmware that sits at the reset vector is called a BIOS. The BIOS has increased in size, complexity, and extensions apace with the complexity and richness of PCs. The increases have finally reached the point that no amount of patching will fix the old architecture. The new architecture, known as the Unified Extensible Firmware Interface (UEFI) [UEFc,ZRH] and Platform Initialization (PI) [UEFb] keep the learning’s of the last years but impose a modern software engineering structure that supports the basic requirements of system initialization, configuration, and abstraction of boot devices, but which is also designed to be extensible enough to address the new features of hardware to come.
What we call the beginning is often the end. And to make an end is to make a beginning.
The end is where we start from.—T.S. Eliot
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References
ACPI. Advanced Configuration and Power Interface. www.acpi.org
EDK. EFI Developer Kit. www.tianocore.org
PCI. Peripheral Component Interconnect. www.pcisig.org
SMBIOS. System Management BIOS. www.smbios.org
SMBUS. System Management Bus. www.smbus.org
Phoenix Technologies. BIOS Boot Specification. www.phoenix.com/NR/rdonlyres/56E38DE2-3E6F-4743-835F-B4A53726ABED/0/specsbbs101.pdf
UEFI. UEFI Registry. www.uefi.org/specs/esp_registry
UEFI. Unified Extensible Firmware Interface Platform Initialization Specifications, Volumes 1–5, Version 1.1. November 5, 2007. www.uefi.org
UEFI. Unified Extensible Firmware Interface Specification—Version 2.1. January 23, 2007. www.uefi.org
V. Zimmer, M. Rothman, and R. Hale. Beyond BIOS: Implementing the Unified Extensible Firmware Interface Specification with Intel’s Framework. ISBN 0-9743649-0-8, Intel Press, September 2006. www.intel.com/intelpress/sum_efi.htm
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© 2009 Springer Science + Business Media B.V.
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Zimmer, V., Rothman, M., Hale, R. (2009). UEFI: From Reset Vector to Operating System. In: Ecker, W., Müller, W., Dömer, R. (eds) Hardware-dependent Software. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-9436-1_3
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DOI: https://doi.org/10.1007/978-1-4020-9436-1_3
Publisher Name: Springer, Dordrecht
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