audk/MdeModulePkg/ChangeLog.txt

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!!!!!!!!!!!!!!!!! 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 !!!!!!!!!!!!!!!!!!
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==========================================================================================
EDK_3773: Non-Compatible: qwang12
Class_PIEnable[0]: Enable DXE Core to produce EFI_FIRMWARE_VOLUME2_PROTOCOL only.
Code Change :
1) Modify MdeModulePkg/Core/Dxe/DxeMain.inf module to produce only
EFI_FIRMWARE_VOLUME2_PROTOCOL. Previously, EFI_FIRMWARE_VOLUME_PROTOCOL
is produced by Dxe Core.
Possible Impacts:
1) All modules that references EFI_FIRMWARE_VOLUME_PROTOCOL must be updated to use
EFI_FIRMWARE_VOLUME2_PROTOCOL.
2) All modules that references gEfiFirmwareVolumeProtocolGuid must be updated to
use gEfiFirmwareVolume2ProtocolGuid.
3) The gEfiFirmwareVolumeProtocolGuid in [Depex] section of INF file should updated.
And the package dependency should also be changed if needed due to this protocol
GUID change.
==========================================================================================
EDK_3871: Non-Compatible: klu2
Class_PIEnable[1]: Use new entry point for PeiCore defined in PI specification.
Code Change:
1) PeiMain module use PeiCoreEntryPoint library class but *not* original OldPeiCoreEntryPoint.
2) The memory service in PeiMain module get CAR base and size from parameter of PeiCore's
Entry point directly but *not* computed from stack's base.
Possible Impacts:
1) Platform should select MdePkg/Library/PeiCoreEntryPoint/PeiCoreEntryPoint.inf for
PeiMain module.
2) The SecCore module should provide parameters for new entry point defined in
MdePkg\Include\Library\PeiCoreEntryPoint.h
==========================================================================================
EDK_3866: Compatible: qhuang8
Class_UefiEnable[0]: Uefi2.1 feature - Add Hardware Error Record Persistence Support
Code Change :
1) Modify MdeModulePkg/Universal/Variable/RuntimeDxe
2) Modify MdeModulePkg/Universal/Variable/EmuRuntimeDxe