Possible impacts:\r
All modules depending on macro TIME_OUT in MdePkg/Include/Uefi/UefiUsbLib.h should use PcdGet32 (PcdUsbTransferTimeoutValue)\r
for the USB transaction, include "PcdLib" in INF [LibraryClasses] section and add "#include <Library/PcdLib.h>" in module\r
- source.
\ No newline at end of file
+ source.\r
+\r
+EDK_9384: Non-Compatible: xli24\r
+\r
+ 2 default values of status code PCDs updated in MdePkg.dec.\r
+\r
+ 1) PcdStatusCodeValueBootServiceExit. Its value is changed from 0x3100019 to 0x3101019, which equals EFI_SOFTWARE_EFI_BOOT_SERVICE | EFI_SW_BS_PC_EXIT_BOOT_SERVICES.\r
+ 2) PcdStatusCodeValuePeiHandoffToDxe. Its value is changed from 0x3031001 to 0x3021001, which equals EFI_SOFTWARE_PEI_CORE | EFI_SW_PEI_CORE_PC_HANDOFF_TO_NEXT. \r
+\r
+Possible impacts:\r
+ Platforms which uses the default values of PCD (not overriding in DSC) would get updated report status code values for boot service exit and PEI hand-off.\r
+\r
+EDK_9385: Non-Compatible: xli24\r
+\r
+ Default value of PcdStatusCodeValueSetVirtualAddressMap updated in MdePkg.dec.\r
+ The value of PcdStatusCodeValueSetVirtualAddressMap is changed from 0x03101004 to 0x03111004, which equals EFI_SOFTWARE_EFI_RUNTIME_SERVICE | EFI_SW_RS_PC_SET_VIRTUAL_ADDRESS_MAP.\r
+\r
+\r
+Possible impacts:\r
+ Platforms which uses the default value of PCD (not overriding in DSC) would get updated report status code value for setting virtual address map.\r
+\r
+EDK_9394: Non-Compatible: qhuang8\r
+\r
+ GUID value of EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL_GUID and gEfiFirmwareVolumeBlockProtocolGuid has been changed to \r
+ that of EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL_GUID defined in PI 1.2 spec.\r
+ \r
+\r
+Possible impacts:\r
+ This is a source level compatible change, but not binary level. We might need to rebuild some old binary modules to work with newer version of MdePkg.\r
+\r
+\r
+EDK_9817: Non-Compatible: qhuang8\r
+ Scrub EFI_ATA_IDENTIFY_DATA and EFI_ATAPI_IDENTIFY_DATA to strict follow newest ATA spec (ATA-8). This is a build non-backward compatible changes for ATA-related modules.\r
+ The ATA5_IDENTIFY_DATA in MdePkg\IndustryStandards\Atapi.h is exactly the same as the original ATA_IDENTIFY_DATA for backward compatibility support to follow ATA-5 spec. \r
+\r
+Possible impacts:\r
+ We can fix the build breaks for some renaming issues (e.g. Word 49 in EFI_ATA_IDENTIFY_DATA renamed from "capabilities" to "capabilities_49")\r
+ For the fields that are "obsolete" in newest ATA spec, we can use type-cast to older ATA spec structure (e.g. ATA5_IDENTIFY_DATA). \r
+ (There should not be any runtime issues if the build issues have got solved in the source correctly.)\r
+\r