EDK II Platform Configuration Database Infrastructure Description

DRAFT FOR REVIEW

12/01/2020 06:03:58

Acknowledgements

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Revision History

Revision	Revision History	Date
0.10	Initial Draft	2/6/2006
0.20	Added lots of PCD APIs and the definition for the PCD_IMAGE format.	2/19/2006
0.21	Added VPD support and further explanations of the PCD hierarchy between module/package/platform data collection areas	2/28/2006
0.22	Corrected items in the PCD_DATA encoding to allow for a PCD token to have a GUID entry for DynamicEx access mechanism.	3/02/2006
0.50	Finalized updates and removal of extraneous information. PCD Base Name definitions are covered in a separate specification.	3/23/2006
0.51	Lots of minor edits throughout. Clarifications, text updated, and the .ffs format has gone through several updates.	4/21/2006
0.52	Updated the PCD SePtr routines to handle reflecting correct maximum SizeOfValue.	6/22/2006
	Added GetNextTokenSpace routines for the PCD services
	Deprecated the PCD FFS definitions - these have been relegated to implementation detail
0.53	Removed extraneous non-PCD specific references	6/30/2006
0.54	Change EDK II.	7/13/2006
0.55	Drop the TPL restriction for PCD PPI since TPL is a concept in DXE phase.	4/29/2009
	Add GetNextTokenSpace() service to the PCD PPI and PCD Protocol structures.
	Update the PCD PPI and Protocol structures to sue the correct field names for the Get/Set services.
	Update GetNextToken() in the PPI and Protocol to clarify the meaning of a `NULL` Guid parameter that specifies the default token space.
	Update TPL restriction for the PCD protocol to be <= TPL_CALLBACK.
0.56	Convert to Gitbook	April 2017

EDK II Platform Configuration Database Infrastructure Description