Errata Sheet

Table Of Contents
Errata Sheet
This document describes known errata with the following specifications:
EDK II Build Specification v 1.22
EDK II DSC File Specification, v1.22
These changes will be made to subsequent releases of the specifications.
1 Introduction............................................................................................................... 2
1.1 Revision History ............................................................................................................... 2
1.2 Typographic Conventions................................................................................................ 2
2 EDK II Build Specification....................................................................................... 3
2.1 Appendix I, HII – UEFI Compliant Unicode String File Format ................................ 3
3 EDK II DSC File Specification ................................................................................ 4
3.1 Section 3.9.4, [PcdsDynamic] Section ............................................................................. 4
3.2 Section 3.9.5, [PcdsDynamicEx] Section......................................................................... 4
Date: 5/20/2010 10:03 AM Page 1 of 4

1 Introduction
The EDK II tools have been modified to the support changes listed in this document.
These changes will be rolled into the next major or minor release of the specification.
1.1 Revision History
Revision
Number
Description Revision Date
1.22a The following items have changed
Update Build Spec to support whitespaces in user visible
text
Updated DSC Spec to remove required maximum size field
for non-VOID* Dynamic and DynamicEx VPD PCDs
1.2 Typographic Conventions
May 2010
Incorrect wording that will be removed is noted by using a red background:
This data has been removed.
New wording has a yellow background.
Date: 5/20/2010 10:03 AM Page 2 of 4

2 EDK II Build Specification
2.1 Appendix I, HII – UEFI Compliant Unicode
String File Format
This change permits the user visible language name to contain space characters. This change
is required to conform to the UEFI specifications. The EBNF will be modified as follows.
::= "langdef"
::=
::= {L"'" L L"'"} {L'"' L L'"'}
::= (NonWhitespaceChar)(NonWhitespaceChar)*
::= (CharOrWhitespace)(CharOrWhitespace)*
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3 EDK II DSC File Specification
The following errors have been detected in the document after it was published.
3.1 Section 3.9.4, [PcdsDynamic] Section
Correct the EBNF for Dynamic and DynamicEx PCDs that are VPD format. The current spec
requires the datum size if a default value is listed. Since the PCD declaration in the DEC
defines the size of Boolean, UINT8, UINT16, UINT32 and UINT64 types, only VOID* PCDs
need to have the datum size specified in the DSC file.
::= “|” []
::= [ []]
::= If PcdType == VOID*:
[]
Else:
::= “|”
::= {“0x” +} {}
3.2 Section 3.9.5, [PcdsDynamicEx] Section
Correct the EBNF for Dynamic and DynamicEx PCDs that are VPD format. The current spec
requires the datum size if a default value is listed. Since the PCD declaration in the DEC
defines the size of Boolean, UINT8, UINT16, UINT32 and UINT64 types, only VOID* PCDs
need to have the datum size specified in the DSC file.
::= “|” []
::= [ []]
::= If PcdType == VOID*:
[]
Else:
::= “|”
::= {“0x” +} {}
Date: 5/20/2010 10:03 AM Page 4 of 4