!!!!!!!!!!!!!!!!!! End of Notes !!!!!!!!!!!!!!!!!!\r
##########################################################################################\r
\r
+==========================================================================================\r
+EDK_3983: Non-Compatible: lgao4\r
+ \r
+ Class_Library: Remove CustomDecompressLib library class.\r
+ \r
+ Code Change:\r
+ 1) Remove the definition MdePkg\Include\Library\CustomDecompressLib.h and \r
+ library instance MdePkg\Library\BaseCustomDecompressLibNull for CustomDecompressLib.\r
+ \r
+ Possible Impacts:\r
+ 1) Drivers don't use this library class any longer. But they can use new ExtractGuidedSectionLib\r
+ library class to extract the compressed guided section data.\r
+ 2) The instance of CustomDecompressLib should be changed to register the decode function \r
+ into ExtractGuidedSectionHandler list, and not to produce CustomDecompressLib class.\r
+ 3) Platform.dsc file doesn't use this library instance any longer.\r
+\r
+==========================================================================================\r
+EDK_3980: Non-Compatible: lgao4\r
+ \r
+ Class_Library: Add ExtractGuidedSectionLib library class to replace CustomDecompressLib.\r
+ \r
+ Code Change:\r
+ 1) Add the definition MdePkg\Include\Library\ExtractGuidedSectionLib.h and \r
+ library instance MdePkg\Library\PeiDxeExtractGuidedSectionLib for new ExtractGuidedSectionLib.\r
+ 2) Add gEfiMdePkgTokenSpaceGuid.PcdMaximumGuidedExtractHandler in MdePkg, which is used by \r
+ PeiDxeExtractGuidedSectionLib library instance.\r
+ 3) Update DxeIpl and DxeMain modules of MdeModulePkg to use new ExtractGuidedSectionLib library class.\r
+ 4) Update BaseUefiTianoCustomDecompressLib of IntelFrameworkModulePkg not to produce CustomDecompressLib,\r
+ and to register TianoDecomress handler into ExtractGuidedSectionHandler list.\r
+ \r
+ Possible Impacts:\r
+ 1) Platform.dsc file should update library instance and PCD if it contains DxeIpl and DxeMain modules.\r
+ It should use MdePkg\Library\PeiDxeExtractGuidedSectionLib library instance and \r
+ set gEfiMdePkgTokenSpaceGuid.PcdMaximumGuidedExtractHandler PCD value.\r
+\r
+==========================================================================================\r
+EDK_3871: Non-Compatible: klu2\r
+ \r
+ Class_PIEnable[1]: Use new entry point for PeiCore defined in PI specification.\r
+ \r
+ Code Change:\r
+ 1) Remove the definition and library instance for OldPeiCoreEntryPoinLib\r
+ \r
+ Possible Impacts:\r
+ 1) Platform should select MdePkg/Library/PeiCoreEntryPoint/PeiCoreEntryPoint.inf for \r
+ PeiMain module.\r
+ 2) The SecCore module should provide parameters for new entry point defined in \r
+ MdePkg\Include\Library\PeiCoreEntryPoint.h\r
+\r
+\r
+EDK_3922: Non-Compatible: qwang12, klu2\r
+ Class_PIEnable[0]: Update PeiServicesLib based on new features defined in PI spec.\r
+\r
+ Code Change :\r
+ 1) Add the following services:PeiServicesRegisterForShadow, PeiServicesFfsGetFileInfo, PeiServicesFfsFindFileByName and PeiServicesFfsGetVolumeInfo\r
+ 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\r
+ to EFI_PEI_FILE_HANDLE.\r
+ 3) Add CONST to parameter of PeiServices EFI_PEI_SERVICES.EFI_PEI_RESET_SYSTEM\r
+\r
+ Possible Impacts:\r
+\r
+ 1) Platform code should be updated to make use of these new PI features. The functions in MdePkg/Include/Library/PeiServicesLib.h are \r
+ recommended as PeiServices is saved for every PEI Services API invokation.\r
+ 2) Now PEIM entry point is upadted to pass in PeiServices in type of (CONST EFI_PEI_SERVICS **). Platform code should be updated to \r
+ add (EFI_PEI_SERVICS **) cast to PeiServices before passing it to the previously defined PPI interface which needs a (EFI_PEI_SERVICS **)\r
+ type for PeiServices parameter.\r
+ 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\r
+ Section 4.4 PEI Sevices Table Retrieval) for details. Beside, GetPeiServicesTablePointer() in MdePkg\Include\Library\PeiServicesTablePointerLib.h\r
+ also provide convinient way to retrieve the pointer to Pei Service Table.\r
+ \r
+\r
+EDK_4067: Non-Compatible: qwang12\r
+ Class_PIEnable[1]: Add PeiPiLib library class and replace PiLib with DxePiLib library class.\r
+\r
+ Code Change :\r
+ 1) Change MdePkg/Include/Library/PiLib.h to MdePkg/Include/Library/DxePiLib.h. DxePiLib is mainly used\r
+ for modules in DXE phase. Add a DxePiLib.h library instance at MdePkg/Library/DxePiLib/DxePiLib.inf.\r
+ 2) Add MdePkg/Include/Library/PeiPiLib.h. PeiPiLib is mainly used by modules in PEI phase. \r
+ Add a DxePiLib.h library instance at MdePkg/Library/PeiPiLib/PeiPiLib.inf.\r
+ 3) Rename API in PeiPiLib.h from PeiPiLibBuildPiFvInfoPpi to PiLibInstallFvInfoPpi.\r
+ 4) Rename APIs originally in PiLib.h with new names defined in DxePiLib.h:\r
+ 4.1) GetSectionFrom*Fv functions are changed to PiLibGetSectionFrom*Fv to reduce possibility of name collision.\r
+ 4.2) Remove API named ImageHandleToFvHandle and GetSectionFromFvFile \r
+\r
+\r
+ Possible Impacts:\r
+\r
+ 1) Platform modules that reference PeiPiLibBuildPiFvInfoPpi and GetSectionFrom*Fv should reference the new\r
+ names defined.\r
+ 2) Platform DSC file that specifying library instance for PiLib should be updated to add one line (a example \r
+ is given below):\r
+ [LibraryClasses.common.DXE_DRIVER]\r
+ ...\r
+ DxePiLib|MdePkg/Library/DxePiLib/DxePiLib.inf\r
+ ...\r
+ 3) Platform DSC file including modules that make use of API from PeiPiLib.h should add the following line (a example \r
+ is given below):\r
+ [LibraryClasses.common.PEIM]\r
+ ...\r
+ PeiPiLib|MdePkg/Library/PeiPiLib/PeiPiLib.inf\r
+ ...\r
+ \r
+\r
+EDK_5835: Non-Compatible: qwang12\r
+ Class General Definitions: NULL_HANDLE definition is removed from UefiBaseType.h. If any modules referencs NULL_HANDLE, they should be updated to use NULL. \r
+ \r
+EDK_5869: Non-Compatible: qhuang8\r
+ Class General Definitions: Update the macro ALIGN_VARIALBE to drop the second parameter.\r
+ \r
+ Code Change:\r
+ The macro ALIGN_VARIABLE in base.h is changed to keep the first paramter\r
+\r
+ Possible Impacts:\r
+ Modules using this macro, it needs to adapt to new interface.\r
+ \r
+EDK_5939: Non-Compatible: qwang12\r
+ Library API moved from HiiLib to UefiLib.\r
+ \r
+ Code Change:\r
+ Change HiiLibGetCurrentLanguage to GetCurrentLanguage and moved it from HiiLib to UefiLib.\r
+\r
+ Possible Impacts:\r
+ All module that reference HiiLibGetCurrentLanguage should be updated in the following step:\r
+ 0) Change HiiLibGetCurrentLanguage to GetCurrentLanguage.\r
+ 1) Add UefiLib to [LibraryClass] in INF if it is not included before.\r
+ 2) Remove HiiLib from [LibraryClass] if HiiLibGetCurrentLanguage is the only API from original HiiLib referenced by this module.\r
+ 3) Add UefiLib to [LibraryClasses.common.Module Type] for the affected module if UefiLib is not in the list.\r
+ \r
+EDK_5989: Non-Compatible: qwang12\r
+ Library API name changed:\r
+ In IfrSupportLib,\r
+ Rename BufToHexString to BufInReverseOrderToHexString \r
+ Rename HexStringToBuf to HexStringToBufInReverseOrder\r
+\r
+Possible Impacts:\r
+ All module that reference BufToHexString or HexStringToBuf should be updated in the following step:\r
+ 0) Change HiiLibGetCurrentLanguage to GetCurrentLanguage.\r
+ 1) Change BufToHexString to BufInReverseOrderToHexString \r
+ 2) Change HexStringToBuf to HexStringToBufInReverseOrder\r
+\r
+EDK_6111: Non-Compatible: qwang12\r
+ Module type Include file is not included on default.\r
+ In Protocol/PPI/GUID/Libary header file, the "#include" of the module type header file such as <Base.h>, <PiPei.h>, <PiDxe.h> and \r
+ <Uefi.h> are removed. The module (DXE driver, UEFI Driver, PEIM) should include these files if required.\r
+\r
+Possible Impacts:\r
+ Customer's module (DXE driver, UEFI Driver, PEIM) may failed to build as module type header file such as <Base.h>, <PiPei.h>, <PiDxe.h>\r
+ <Uefi.h> is removed from the Protocol/PPI/GUID/Libary header file. If the module can build before the update but failed after the update\r
+ because of some undefined basic data type such as "EFI_GUID", module developer should include the module type header file accordingly.\r
+ \r
+EDK_6131: Non-Compatible: qwang12\r
+\r
+Base on PI spec, GetPeiServicesTablePointer in PeiServicesTablePointer library is updated to return CONST EFI_PEI_SERVICES**. This is a incompatible changes. All file that reference this must be updated.\r
+\r
+Possible Impacts:\r
+ Customer's module that reference GetPeiServicesTablePointer in PeiServicesTablePointer library may need to updated. Otherwise\r
+ a build break (mismatch of data type) may occur.\r
+ \r
+EDK_6307: Non-Compatible: qwang12\r
+\r
+Remove SafeFreePool from MemoryAllocationLib as this API's name is misleading. Its implementation only check if a pointer is NULL. If a garbage pointer is passed in, the gBS->FreePool will still ASSERT in debug build and return error code. \r
+\r
+It is recommended that module writer should keep track how a pointer is allocated and free it after use.\r
+\r
+Possible Impacts:\r
+ Customer's module that reference SafeFreePool need to updated. Otherwise\r
+ a build break may occur.\r
+ \r
+EDK_6496-6519: Non-Compatible: qhuang8\r
+\r
+ A bundle of library class/instance renames, moves and merges:\r
+ 1. Rename library class UsbLib to UefiUsbLib\r
+ 2. Rename library class ScsiLib to UefiScsiLib\r
+ 3. Rename library class PalCallLib to PalLib\r
+ 4. Rename library class DxePiLib to DxeSerivcesLib and drop the prefix "PiLib" to all its APIs.\r
+ 5. Merge library class PiPeiLib to PeiServicesLib and rename the PiLibInstallFvInfoPpi() to PeiServicesInstallFvInfoPpi()\r
+ 6. Move library class HiiLib to MdeModulePkg\r
+ 7. Move library class IfrSupportLib to MdeModulePkg\r
+ 8. Move library class FvbServiceLib to MdeModulePkg\r
+ 9. Rename library instance of BasePalCallLibNull to BasePalLibNull\r
+ 10. Move library instance UefiHiiLib to MdeModulePkg\r
+ 11. Move library instance UefiIfrSupportLib to MdeModulePkg\r
+\r
+Possible Impacts:\r
+ Every change listed above is non-backward compatible for MdePkg and other packages. It is required to update module\r
+ sources (*.c;*.h), module meta data files (*.inf) and update the platform DSC files to fix the build break.\r
+ However, it is less likely to bring about functional issue for these updates.\r
+\r
+\r
+EDK_6565: Non-Compatible: qhuang8\r
+ \r
+ Remove some macro in UefiScsiLib:\r
+ EFI_SCSI_STALL_1_MICROSECOND, EFI_SCSI_STALL_1_MILLISECOND, EFI_SCSI_STALL_1_SECOND & EFI_SCSI_STALL_SECONDS(a) \r
+ \r
+Possible Impacts:\r
+ Modules depending on UefiScsiLib for these macros should update the source to use new UefiLib macros\r
+ EFI_TIMER_PERIOD_MICROSECONDS(X), EFI_TIMER_PERIOD_MILLISECONDS(X) and EFI_TIMER_PERIOD_SECONDS(X) for managing Timer Events.\r
+ Especailly, EFI_SCSI_STALL_SECONDS(a) is simply replaced by EFI_TIMER_PERIOD_SECONDS(a)\r
\r
+EDK_6886: Non-Compatible: mdkinney\r
+ \r
+ Rename _CR macro in MdePkg\Include\Base.h to BASE_CR macro aligned to MdeLib spec.\r
\r
+Possible Impacts:\r
+ All source codes that depends on _CR macro must be changed to use BASE_CR. \r