mirror of https://github.com/acidanthera/audk.git
76 lines
3.3 KiB
Plaintext
76 lines
3.3 KiB
Plaintext
##########################################################################################
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!!!!!!!!!!!!!!!!! Notes for this ChangeLog.txt !!!!!!!!!!!!!!!!!
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This log file is used to record two kinds of important information:
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a) "Non-Compatible Changes": all non-compatible changes should be recorded. These info
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will help the package user to merge this package; and some non-compatible changes
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can also be added into release notes as news features when we release this package.
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Normally Non-Compatible Changes contains the following types:
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1) Package's external services were changed/updated
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2) Package's common .h file is renamed, deleted, or the file path is changed.
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3) The definition of package's common data structure is changed
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...
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b) "Important Compatible Changes": some important compatible changes can aslo be recorded
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in this file, and we can add these updating into release notes when we release this
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package.
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Non-Compatible and Compatible example format:
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==========================================================================================
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EDK_0010: Non-Compatible: owner
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Class_HFile: PPI A of MdePkg has been removed.
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Code Change :
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1) Removed the .h file: MdePkg\Include\Ppi\A.h
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Possible Impacts:
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1) All modules that used this PPI A should be updated.
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==========================================================================================
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EDK_0000: Compatible: owner
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Class_BuildTool: with the EDK_0000 build.exe, the build performance is enhanced great.
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Code Change :
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1) BaseTools\Bin\Win32\build.exe
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!!!!!!!!!!!!!!!!!! End of Notes !!!!!!!!!!!!!!!!!!
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##########################################################################################
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==========================================================================================
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EDK_r4955: Non-Compatible: qhuang8
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Class_HFile: Update the Device Type Value of MEDIA_FV_DP & MEDIA_FV_FILEPATH_DP.
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The definitions in MdePkg have already been updated in r4632. This will remove the
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potential compatibility issues when native EDK II modules & EDK modules built with
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ECP and run with EDK II core.
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Code Change:
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1) Reverse the value of MEDIA_FV_DP & MEDIA_FV_FILEPATH_DP to fix a UEFI errata.
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Possible impact:
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1) EDK I modules built with this update might not work with old EDK environment.
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==========================================================================================
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EDK_r4960: Non-Compatible: qhuang8
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Class_HFile: Remove the default value 0xE0000000 of EDKII_GLUE_PciExpressBaseAddress.
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It now requires platform DSC file to specify it explicitly to avoid runtime issue
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if they ever uses PciExpressLib in EDK GlueLib.
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Unlike other default value in GlueLib, this value might not function for all real
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platforms.
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Code Change:
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1) Replace 0xE0000000 to be PCD_EDKII_GLUE_PciExpressBaseAddress.
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Possible impact:
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1) If a platform ever uses PciExpressLib in Glue Lib. It needs to explictly specify
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the value of PCD_EDKII_GLUE_PciExpressBaseAddress for their platform to function.
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e.g. in EDK II DSC file to build EDK modules:
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[BuildOptions]
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*_*_*_CC_FLAGS = /D PCD_EDKII_GLUE_PciExpressBaseAddress=0xC0000000
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