EDK II VFR Programming Language Specification
DRAFT FOR REVIEW
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Copyright (c) 2007-2018, Intel Corporation. All rights reserved.
December 12, 2007
First general release
December 21 2007
Update some syntax and fix some literal issues
February 20, 2008
Add more defaultstore ID description and fix some literal errors
May 26, 2008
Add new syntax classguid, suppressifformset, security, formmap to support UEFI 2.3 HII IFR opcodes, update some syntax and fix some literal errors.
Feb 12, 2010
Add generic Guid opcode, inconsistentif check for EFI_IFR_TIME opcode, and, support question VarStorageId defined by DataType and VarStore name.
May 3 , 2011
Update efi varstore syntax, add modal, refresh event group and REF5 opcode, and add EFI_HII_REF data type to support UEFI 2.3.1 HII IFR opcodes, corrects Time statement example. Minor editing and formatting
August 31, 2011
Update syntax for goto, image, questionref and constant value opcodes, correct CALLBACK flag to INTEREACTIVE, correct help string for old syntax date/time example, and add examples for expression opcodes.
December 1, 2011
Clarify restriction that enum type and struct data filed with more than one dimensions array are not supported.
May 18, 2012
Add syntax for warningif opcode, update definition for name/value varstore and subtitle opcode, update referenced UEFI spec version info.
Jan 14, 2014
Correct sample code for catenate/match/cond opcode. Add syntax for match2 opcode. Add sample code to show the buffer type constant value for orderedlist opcode and default opcode.
July 2, 2015
Convert to Gitbook