diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/MdeModulePkg/Universal/StatusCodeHandler/Smm/MemoryStatusCodeWorker.c | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/MdeModulePkg/Universal/StatusCodeHandler/Smm/MemoryStatusCodeWorker.c')
| -rw-r--r-- | roms/edk2/MdeModulePkg/Universal/StatusCodeHandler/Smm/MemoryStatusCodeWorker.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/roms/edk2/MdeModulePkg/Universal/StatusCodeHandler/Smm/MemoryStatusCodeWorker.c b/roms/edk2/MdeModulePkg/Universal/StatusCodeHandler/Smm/MemoryStatusCodeWorker.c new file mode 100644 index 000000000..c9b43fd24 --- /dev/null +++ b/roms/edk2/MdeModulePkg/Universal/StatusCodeHandler/Smm/MemoryStatusCodeWorker.c @@ -0,0 +1,107 @@ +/** @file
+ Runtime memory status code worker.
+
+ Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+ (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "StatusCodeHandlerSmm.h"
+
+RUNTIME_MEMORY_STATUSCODE_HEADER *mSmmMemoryStatusCodeTable;
+
+/**
+ Initialize SMM memory status code table as initialization for memory status code worker
+
+ @retval EFI_SUCCESS SMM memory status code table successfully initialized.
+ @retval others Errors from gSmst->SmmInstallConfigurationTable().
+**/
+EFI_STATUS
+MemoryStatusCodeInitializeWorker (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // Allocate SMM memory status code pool.
+ //
+ mSmmMemoryStatusCodeTable = (RUNTIME_MEMORY_STATUSCODE_HEADER *)AllocateZeroPool (sizeof (RUNTIME_MEMORY_STATUSCODE_HEADER) + PcdGet16 (PcdStatusCodeMemorySize) * 1024);
+ ASSERT (mSmmMemoryStatusCodeTable != NULL);
+
+ mSmmMemoryStatusCodeTable->MaxRecordsNumber = (PcdGet16 (PcdStatusCodeMemorySize) * 1024) / sizeof (MEMORY_STATUSCODE_RECORD);
+ Status = gSmst->SmmInstallConfigurationTable (
+ gSmst,
+ &gMemoryStatusCodeRecordGuid,
+ &mSmmMemoryStatusCodeTable,
+ sizeof (mSmmMemoryStatusCodeTable)
+ );
+ return Status;
+}
+
+
+/**
+ Report status code into runtime memory. If the runtime pool is full, roll back to the
+ first record and overwrite it.
+
+ @param CodeType Indicates the type of status code being reported.
+ @param Value Describes the current status of a hardware or software entity.
+ This included information about the class and subclass that is used to
+ classify the entity as well as an operation.
+ @param Instance The enumeration of a hardware or software entity within
+ the system. 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 Status code successfully recorded in runtime memory status code table.
+
+**/
+EFI_STATUS
+EFIAPI
+MemoryStatusCodeReportWorker (
+ IN EFI_STATUS_CODE_TYPE CodeType,
+ IN EFI_STATUS_CODE_VALUE Value,
+ IN UINT32 Instance,
+ IN EFI_GUID *CallerId,
+ IN EFI_STATUS_CODE_DATA *Data OPTIONAL
+ )
+{
+ MEMORY_STATUSCODE_RECORD *Record;
+
+ //
+ // Locate current record buffer.
+ //
+ Record = (MEMORY_STATUSCODE_RECORD *) (mSmmMemoryStatusCodeTable + 1);
+ Record = &Record[mSmmMemoryStatusCodeTable->RecordIndex++];
+
+ //
+ // Save status code.
+ //
+ Record->CodeType = CodeType;
+ Record->Value = Value;
+ Record->Instance = Instance;
+
+ //
+ // 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.
+ //
+ mSmmMemoryStatusCodeTable->NumberOfRecords++;
+ if (mSmmMemoryStatusCodeTable->RecordIndex == mSmmMemoryStatusCodeTable->MaxRecordsNumber) {
+ //
+ // Wrap around record index.
+ //
+ mSmmMemoryStatusCodeTable->RecordIndex = 0;
+ }
+
+ return EFI_SUCCESS;
+}
+
+
+
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