1 ##########################################################################################
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2 !!!!!!!!!!!!!!!!! Notes for this ChangeLog.txt !!!!!!!!!!!!!!!!!
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4 This log file is used to record two kinds of important information:
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5 a) "Non-Compatible Changes": all non-compatible changes should be recorded. These info
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6 will help the package user to merge this package; and some non-compatible changes
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7 can also be added into release notes as news features when we release this package.
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8 Normally Non-Compatible Changes contains the following types:
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9 1) Package's external services were changed/updated
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10 2) Package's common .h file is renamed, deleted, or the file path is changed.
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11 3) The definition of package's common data structure is changed
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14 b) "Important Compatible Changes": some important compatible changes can aslo be recorded
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15 in this file, and we can add these updating into release notes when we release this
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18 Non-Compatible and Compatible example format:
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19 ==========================================================================================
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20 EDK_0010: Non-Compatible: owner
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22 Class_HFile: PPI A of MdePkg has been removed.
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25 1) Removed the .h file: MdePkg\Include\Ppi\A.h
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28 1) All modules that used this PPI A should be updated.
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30 ==========================================================================================
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31 EDK_0000: Compatible: owner
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33 Class_BuildTool: with the EDK_0000 build.exe, the build performance is enhanced great.
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36 1) BaseTools\Bin\Win32\build.exe
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38 !!!!!!!!!!!!!!!!!! End of Notes !!!!!!!!!!!!!!!!!!
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39 ##########################################################################################
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43 ==========================================================================================
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44 EDK_3871: Non-Compatible: klu2
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46 Class_PIEnable[1]: Use new entry point for PeiCore defined in PI specification.
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49 1) Remove the definition and library instance for OldPeiCoreEntryPoinLib
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52 1) Platform should select MdePkg/Library/PeiCoreEntryPoint/PeiCoreEntryPoint.inf for
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54 2) The SecCore module should provide parameters for new entry point defined in
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55 MdePkg\Include\Library\PeiCoreEntryPoint.h
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58 EDK_3922: Non-Compatible: qwang12, klu2
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59 Class_PIEnable[0]: Update PeiServicesLib based on new features defined in PI spec.
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62 1) Add the following services:PeiServicesRegisterForShadow, PeiServicesFfsGetFileInfo, PeiServicesFfsFindFileByName and PeiServicesFfsGetVolumeInfo
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63 2) The paramter list of these functiuon has also been updated to replace EFI_FIRMWARE_VOLUME_HEADER to EFI_PEI_FV_HANDLE and EFI_FFS_FILE_HEADER
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64 to EFI_PEI_FILE_HANDLE.
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65 3) Add CONST to parameter of PeiServices EFI_PEI_SERVICES.EFI_PEI_RESET_SYSTEM
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69 1) Platform code should be updated to make use of these new PI features. The functions in MdePkg/Include/Library/PeiServicesLib.h are
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70 recommended as PeiServices is saved for every PEI Services API invokation.
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71 2) Now PEIM entry point is upadted to pass in PeiServices in type of (CONST EFI_PEI_SERVICS **). Platform code should be updated to
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72 add (EFI_PEI_SERVICS **) cast to PeiServices before passing it to the previously defined PPI interface which needs a (EFI_PEI_SERVICS **)
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73 type for PeiServices parameter.
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74 3) The newly defined PPI should not inlcude PeiSevices in the paramter list as PI spec has standard way to retrive PeiServices (check VOL 1
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75 Section 4.4 PEI Sevices Table Retrieval) for details. Beside, GetPeiServicesTablePointer() in MdePkg\Include\Library\PeiServicesTablePointerLib.h
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76 also provide convinient way to retrieve the pointer to Pei Service Table.
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