diff options
Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal/StatusCodeHandler/Pei/MemoryStausCodeWorker.c')
| -rw-r--r-- | src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal/StatusCodeHandler/Pei/MemoryStausCodeWorker.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal/StatusCodeHandler/Pei/MemoryStausCodeWorker.c b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal/StatusCodeHandler/Pei/MemoryStausCodeWorker.c new file mode 100644 index 00000000..13c89553 --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal/StatusCodeHandler/Pei/MemoryStausCodeWorker.c @@ -0,0 +1,121 @@ +/** @file + PEI memory status code worker. + + Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include "StatusCodeHandlerPei.h" + +/** + Create the first memory status code GUID'ed HOB as initialization for memory status code worker. + + @retval EFI_SUCCESS The GUID'ed HOB is created successfully. + +**/ +EFI_STATUS +MemoryStatusCodeInitializeWorker ( + VOID + ) +{ + // + // Create memory status code GUID'ed HOB. + // + MEMORY_STATUSCODE_PACKET_HEADER *PacketHeader; + + // + // Build GUID'ed HOB with PCD defined size. + // + PacketHeader = BuildGuidHob ( + &gMemoryStatusCodeRecordGuid, + PcdGet16 (PcdStatusCodeMemorySize) * 1024 + sizeof (MEMORY_STATUSCODE_PACKET_HEADER) + ); + ASSERT (PacketHeader != NULL); + + PacketHeader->MaxRecordsNumber = (PcdGet16 (PcdStatusCodeMemorySize) * 1024) / sizeof (MEMORY_STATUSCODE_RECORD); + PacketHeader->PacketIndex = 0; + PacketHeader->RecordIndex = 0; + + return EFI_SUCCESS; +} + + +/** + Report status code into GUID'ed HOB. + + This function reports status code into GUID'ed HOB. If not all packets are full, then + write status code into available entry. Otherwise, create a new packet for it. + + @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation. + @param CodeType Indicates the type of status code being reported. + @param Value Describes the current status of a hardware or + software entity. This includes information about the class and + subclass that is used to classify the entity as well as an operation. + For progress codes, the operation is the current activity. + For error codes, it is the exception.For debug codes,it is not defined at this time. + @param Instance The enumeration of a hardware or software entity within + the system. A system may contain multiple entities that match a class/subclass + pairing. The instance differentiates between them. An instance of 0 indicates + that instance information is unavailable, not meaningful, or not relevant. + Valid instance numbers start with 1. + @param CallerId This optional parameter may be used to identify the caller. + This parameter allows the status code driver to apply different rules to + different callers. + @param Data This optional parameter may be used to pass additional data. + + @retval EFI_SUCCESS The function always return EFI_SUCCESS. + +**/ +EFI_STATUS +EFIAPI +MemoryStatusCodeReportWorker ( + IN CONST EFI_PEI_SERVICES **PeiServices, + IN EFI_STATUS_CODE_TYPE CodeType, + IN EFI_STATUS_CODE_VALUE Value, + IN UINT32 Instance, + IN CONST EFI_GUID *CallerId, + IN CONST EFI_STATUS_CODE_DATA *Data OPTIONAL + ) +{ + + EFI_PEI_HOB_POINTERS Hob; + MEMORY_STATUSCODE_PACKET_HEADER *PacketHeader; + MEMORY_STATUSCODE_RECORD *Record; + + // + // Find GUID'ed HOBs to locate current record buffer. + // + Hob.Raw = GetFirstGuidHob (&gMemoryStatusCodeRecordGuid); + ASSERT (Hob.Raw != NULL); + + PacketHeader = (MEMORY_STATUSCODE_PACKET_HEADER *) GET_GUID_HOB_DATA (Hob.Guid); + Record = (MEMORY_STATUSCODE_RECORD *) (PacketHeader + 1); + Record = &Record[PacketHeader->RecordIndex++]; + + // + // Save status code. + // + Record->CodeType = CodeType; + Record->Instance = Instance; + Record->Value = Value; + + // + // If record index equals to max record number, then wrap around record index to zero. + // + // The reader of status code should compare the number of records with max records number, + // If it is equal to or larger than the max number, then the wrap-around had happened, + // so the first record is pointed by record index. + // If it is less then max number, index of the first record is zero. + // + if (PacketHeader->RecordIndex == PacketHeader->MaxRecordsNumber) { + // + // Wrap around record index. + // + PacketHeader->RecordIndex = 0; + PacketHeader->PacketIndex ++; + } + + return EFI_SUCCESS; +} + |