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| author | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-03-27 05:14:27 +0000 |
|---|---|---|
| committer | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-03-27 05:14:27 +0000 |
| commit | dfbe72bd4a01e02e3ab27faf73b26529b63820eb (patch) | |
| tree | 2b976e46ce487b02b4ce9566c5e9f4e8694f9286 | |
| parent | 204529a3a033b5379c53332313d01c739274fc9b (diff) | |
| download | edk2-platforms-dfbe72bd4a01e02e3ab27faf73b26529b63820eb.tar.xz | |
Add Change Log file for some non-backward compatible changes in ECP.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4961 6f19259b-4bc3-4df7-8a09-765794883524
| -rw-r--r-- | EdkCompatibilityPkg/ChangeLog.txt | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/EdkCompatibilityPkg/ChangeLog.txt b/EdkCompatibilityPkg/ChangeLog.txt new file mode 100644 index 0000000000..fee46f114d --- /dev/null +++ b/EdkCompatibilityPkg/ChangeLog.txt @@ -0,0 +1,75 @@ +##########################################################################################
+!!!!!!!!!!!!!!!!! Notes for this ChangeLog.txt !!!!!!!!!!!!!!!!!
+
+This log file is used to record two kinds of important information:
+ a) "Non-Compatible Changes": all non-compatible changes should be recorded. These info
+ will help the package user to merge this package; and some non-compatible changes
+ can also be added into release notes as news features when we release this package.
+ Normally Non-Compatible Changes contains the following types:
+ 1) Package's external services were changed/updated
+ 2) Package's common .h file is renamed, deleted, or the file path is changed.
+ 3) The definition of package's common data structure is changed
+ ...
+
+ b) "Important Compatible Changes": some important compatible changes can aslo be recorded
+ in this file, and we can add these updating into release notes when we release this
+ package.
+
+Non-Compatible and Compatible example format:
+==========================================================================================
+EDK_0010: Non-Compatible: owner
+
+ Class_HFile: PPI A of MdePkg has been removed.
+
+ Code Change :
+ 1) Removed the .h file: MdePkg\Include\Ppi\A.h
+
+ Possible Impacts:
+ 1) All modules that used this PPI A should be updated.
+
+==========================================================================================
+EDK_0000: Compatible: owner
+
+ Class_BuildTool: with the EDK_0000 build.exe, the build performance is enhanced great.
+
+ Code Change :
+ 1) BaseTools\Bin\Win32\build.exe
+
+!!!!!!!!!!!!!!!!!! End of Notes !!!!!!!!!!!!!!!!!!
+##########################################################################################
+
+==========================================================================================
+EDK_r4955: Non-Compatible: qhuang8
+
+ Class_HFile: Update the Device Type Value of MEDIA_FV_DP & MEDIA_FV_FILEPATH_DP.
+ The definitions in MdePkg have already been updated in r4632. This will remove the
+ potential compatibility issues when native EDK II modules & EDK modules built with
+ ECP and run with EDK II core.
+
+ Code Change:
+ 1) Reverse the value of MEDIA_FV_DP & MEDIA_FV_FILEPATH_DP to fix a UEFI errata.
+
+
+ Possible impact:
+ 1) EDK I modules built with this update might not work with old EDK environment.
+
+
+==========================================================================================
+EDK_r4960: Non-Compatible: qhuang8
+
+ Class_HFile: Remove the default value 0xE0000000 of EDKII_GLUE_PciExpressBaseAddress.
+ It now requires platform DSC file to specify it explicitly to avoid runtime issue
+ if they ever uses PciExpressLib in EDK GlueLib.
+ Unlike other default value in GlueLib, this value might not function for all real
+ platforms.
+
+ Code Change:
+ 1) Replace 0xE0000000 to be PCD_EDKII_GLUE_PciExpressBaseAddress.
+
+ Possible impact:
+ 1) If a platform ever uses PciExpressLib in Glue Lib. It needs to explictly specify
+ the value of PCD_EDKII_GLUE_PciExpressBaseAddress for their platform to function.
+ e.g. in EDK II DSC file to build EDK modules:
+ [BuildOptions]
+ *_*_*_CC_FLAGS = /D PCD_EDKII_GLUE_PciExpressBaseAddress=0xC0000000
+
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