1. Fixed one bug in ConPlatform.c, add NULL judgment.
[mirror_edk2.git] / MdeModulePkg / ChangeLog.txt
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5182bf8e 1##########################################################################################\r
2!!!!!!!!!!!!!!!!! Notes for this ChangeLog.txt !!!!!!!!!!!!!!!!!\r
3\r
4This log file is used to record two kinds of important information:\r
5 a) "Non-Compatible Changes": all non-compatible changes should be recorded. These info\r
6 will help the package user to merge this package; and some non-compatible changes\r
7 can also be added into release notes as news features when we release this package.\r
8 Normally Non-Compatible Changes contains the following types:\r
9 1) Package's external services were changed/updated\r
10 2) Package's common .h file is renamed, deleted, or the file path is changed.\r
11 3) The definition of package's common data structure is changed\r
12 ...\r
13\r
14 b) "Important Compatible Changes": some important compatible changes can aslo be recorded\r
15 in this file, and we can add these updating into release notes when we release this\r
16 package.\r
17\r
18Non-Compatible and Compatible example format:\r
19==========================================================================================\r
20EDK_0010: Non-Compatible: owner\r
21\r
22 Class_HFile: PPI A of MdePkg has been removed.\r
23\r
24 Code Change :\r
25 1) Removed the .h file: MdePkg\Include\Ppi\A.h\r
26\r
27 Possible Impacts:\r
28 1) All modules that used this PPI A should be updated.\r
29\r
30==========================================================================================\r
31EDK_0000: Compatible: owner\r
32\r
33 Class_BuildTool: with the EDK_0000 build.exe, the build performance is enhanced great.\r
34\r
35 Code Change :\r
36 1) BaseTools\Bin\Win32\build.exe\r
37\r
38!!!!!!!!!!!!!!!!!! End of Notes !!!!!!!!!!!!!!!!!!\r
39##########################################################################################\r
40\r
6a9d345a 41==========================================================================================\r
78818e8e 42EDK_39331: Non-Compatible: klu2\r
6a9d345a 43 \r
d3d32ac0 44 Class_PIEnable[5]: New library class for S3Resume and Recovery for DxeIpl PEIM.\r
6a9d345a 45 \r
46 Code Change:\r
d3d32ac0 47 1) Add new library class \r
48 a) MdeModulePkg/Include/Library/S3Lib.h\r
49 b) MdeModulePkg/Include/Library/RecoveryLib.h\r
50 2) Add NULL library instances for MdeModulePkg:\r
78818e8e 51 a) MdeModulePkg/Library/PeiS3LibNull/PeiS3LibNull.inf.\r
52 b) MdeModulePkg/Library/PeiRecoveryLibNull/PeiRecoveryLibNull.inf\r
d3d32ac0 53 3) Add framework implement library instances:\r
78818e8e 54 a) IntelFrameworkModulePkg/Library/PeiS3Lib/PeiS3Lib.inf\r
55 b) IntelFrameworkModulePkg/Library/PeiRecovery/PeiRecovery.inf\r
6a9d345a 56 \r
57 Possible Impacts:\r
78818e8e 58 1) In DSC file, real platform should select:\r
59 S3Lib library class -> IntelFrameworkModulePkg/Library/PeiS3Lib/PeiS3Lib.inf\r
60 RecoveryLib library class -> IntelFrameworkModulePkg/Library/PeiRecovery/PeiRecovery.inf\r
61 \r
62 Nt32 platform should select:\r
63 S3Lib library class -> MdeModulePkg/Library/PeiS3LibNull/PeiS3LibNull.inf.\r
64 RecoveryLib library class -> MdeModulePkg/Library/PeiRecoveryLibNull/PeiRecoveryLibNull.inf\r
65 \r
b4f5f5d6 66==========================================================================================\r
67EDK_3922: Non-Compatible: qwang12, klu2\r
68 Class_PIEnable[2]: Update PEI core to only consume EFI_PEI_FIRMWARE_VOLUME_INFO_PPI\r
69\r
70 Code Change :\r
71 1) Update PEI core to consume EFI_PEI_FIRMWARE_VOLUME_INFO_PPI to get the location of new FVs other than BFV\r
72 reported by PEIMs . \r
73\r
74 Possible Impacts:\r
75 1) Platform code that is going to inform PEI core about the new FVs other than BFV should install \r
76 EFI_PEI_FIRMWARE_VOLUME_INFO_PPI. A library function named PeiPiLibBuildPiFvInfoPpi() defined in \r
77 MdePkg\Include\Library\PeiPiLib.h can be used to install the PPI. \r
78 There are two notes worth mentioning:\r
79 1) Platform PEIMs should report at least FVs containing DXE_CORE and all other PEIM to PEI Core if they\r
80 are not in the BFV. \r
81 2) PEI core will dispatch PEIMs in the FV reported by PeiPiLibBuildPiFvInfoPpi() and invoke BuildFvHob () to build the \r
82 FV HOB for this FV (see Section 4.8.1.2 of Vol 1 named Multiple Firmware Volume Support for details). \r
83 If PEIM only want to inform DXE core about the existance of the new FV, it should call BuildFvHob instead.\r
84 \r
85 \r
86 Class_PIEnable[3]: Update PEI core to support RegisterForShadow feature introduced by PI spec\r
87\r
88 Code Change :\r
89 1) DXEIPL no longer produce EFI_PEI_FV_FILE_LOADER_PPI defined in Framework PEI CIS.\r
90\r
91 Possible Impacts:\r
92\r
93 1)All PEIMs that need to shadow itself into memory and rerun the entry point should be updated to call RegisterForShadow\r
94 (PeiServicesLibRegisterForShadow () is a helper function).\r
95 2)The depex of PEIMs that including EFI_PEI_FV_FILE_LOADER_PPI (or gEfiPeiFvFileLoaderPpiGuid) should be removed.\r
96 \r
97\r
98 Class_PIEnable[4]: Update PEI core to produce other new features defined in PI spec\r
99\r
100 Code Change :\r
101 1) Add the following services: FfsGetFileInfo, FfsFindFileByName and FfsGetVolumeInfo\r
102\r
103 Possible Impacts:\r
104\r
105 1) Platform code is recommended to make use of these new PI features. The functions in MdePkg/Include/Library/PeiServicesLib.h are \r
106 recommended as PeiServices is saved for every PEI Services API invokation.\r
107\r
d3d32ac0 108==========================================================================================\r
109EDK_3871: Non-Compatible: klu2\r
110 \r
111 Class_PIEnable[1]: Use new entry point for PeiCore defined in PI specification.\r
112 \r
113 Code Change:\r
114 1) PeiMain module use PeiCoreEntryPoint library class but *not* original OldPeiCoreEntryPoint.\r
115 2) The memory service in PeiMain module get CAR base and size from parameter of PeiCore's\r
116 Entry point directly but *not* computed from stack's base.\r
117 \r
118 Possible Impacts:\r
119 1) Platform should select MdePkg/Library/PeiCoreEntryPoint/PeiCoreEntryPoint.inf for \r
120 PeiMain module.\r
121 2) The SecCore module should provide parameters for new entry point defined in \r
122 MdePkg\Include\Library\PeiCoreEntryPoint.h\r
6a9d345a 123 \r
c6492839 124==========================================================================================\r
e4b561fb 125EDK_3866: Compatible: qhuang8\r
c6492839 126\r
127 Class_UefiEnable[0]: Uefi2.1 feature - Add Hardware Error Record Persistence Support \r
128 Code Change :\r
129 1) Modify MdeModulePkg/Universal/Variable/RuntimeDxe\r
130 2) Modify MdeModulePkg/Universal/Variable/EmuRuntimeDxe\r
d3d32ac0 131\r
132==========================================================================================\r
133EDK_3773: Non-Compatible: qwang12\r
134\r
135 Class_PIEnable[0]: Enable DXE Core to produce EFI_FIRMWARE_VOLUME2_PROTOCOL only.\r
136\r
137 Code Change :\r
138 1) Modify MdeModulePkg/Core/Dxe/DxeMain.inf module to produce only\r
139 EFI_FIRMWARE_VOLUME2_PROTOCOL. Previously, EFI_FIRMWARE_VOLUME_PROTOCOL\r
140 is produced by Dxe Core.\r
141\r
142 Possible Impacts:\r
143 1) All modules that references EFI_FIRMWARE_VOLUME_PROTOCOL must be updated to use\r
144 EFI_FIRMWARE_VOLUME2_PROTOCOL.\r
145 2) All modules that references gEfiFirmwareVolumeProtocolGuid must be updated to\r
146 use gEfiFirmwareVolume2ProtocolGuid.\r
147 3) The gEfiFirmwareVolumeProtocolGuid in [Depex] section of INF file should updated.\r
148 And the package dependency should also be changed if needed due to this protocol\r
b9f020e9
LG
149 GUID change.\r
150\r
151==========================================================================================\r
152EDK_3967: Non-Compatible: lgao4\r
153\r
154 Class_Library: Remove PeCoffLoader library class and its instances.\r
155\r
156 Code Change :\r
157 1) Remove MdeModulePkg/Include/Library/PeCoffLoaderLib.h\r
158 2) Remove MdeModulePkg/Library/DxePeCoffLoaderFromHobLib and PeiDxePeCoffLoaderLib instance\r
159 3) Modify PeiCore, DxeIpl and DxeCore to use PeCoffLib in place of PeCoffLoaderLib.\r
160\r
161 Possible Impacts:\r
162 1) All modules don't use PeCoffloader library class any longer to load PeImage. \r
163 If necessary, they should use PeCoffLib of MdePkg to load PeImage.\r