mirror of https://github.com/acidanthera/audk.git
119 lines
4.7 KiB
C
119 lines
4.7 KiB
C
/** @file
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Runtime memory status code worker in DXE.
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "DxeStatusCode.h"
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/**
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Initialize runtime memory status code.
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@return The function always return EFI_SUCCESS
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**/
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EFI_STATUS
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RtMemoryStatusCodeInitializeWorker (
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VOID
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)
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{
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RUNTIME_MEMORY_STATUSCODE_HEADER *RtMemoryStatusCodeTable;
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//
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// Allocate runtime memory status code pool.
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//
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RtMemoryStatusCodeTable =
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(RUNTIME_MEMORY_STATUSCODE_HEADER *) AllocateRuntimePool (
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sizeof (RUNTIME_MEMORY_STATUSCODE_HEADER) +
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PcdGet16 (PcdStatusCodeRuntimeMemorySize) *
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1024
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);
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ASSERT (NULL != RtMemoryStatusCodeTable);
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RtMemoryStatusCodeTable->RecordIndex = 0;
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RtMemoryStatusCodeTable->NumberOfRecords = 0;
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RtMemoryStatusCodeTable->MaxRecordsNumber =
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(PcdGet16 (PcdStatusCodeRuntimeMemorySize) * 1024) / sizeof (MEMORY_STATUSCODE_RECORD);
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gDxeStatusCode.RtMemoryStatusCodeTable[PHYSICAL_MODE] = RtMemoryStatusCodeTable;
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return EFI_SUCCESS;
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}
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/**
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Report status code into runtime memory. If the runtime pool is full, roll back to the
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first record and overwrite it.
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@param RtMemoryStatusCodeTable
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Point to Runtime memory table header.
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@param CodeType Indicates the type of status code being reported. Type EFI_STATUS_CODE_TYPE is defined in "Related Definitions" below.
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@param Value Describes the current status of a hardware or software entity.
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This included information about the class and subclass that is used to classify the entity
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as well as an operation. For progress codes, the operation is the current activity.
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For error codes, it is the exception. For debug codes, it is not defined at this time.
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Type EFI_STATUS_CODE_VALUE is defined in "Related Definitions" below.
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Specific values are discussed in the Intel? Platform Innovation Framework for EFI Status Code Specification.
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@param Instance The enumeration of a hardware or software entity within the system.
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A system may contain multiple entities that match a class/subclass pairing.
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The instance differentiates between them. An instance of 0 indicates that instance information is unavailable,
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not meaningful, or not relevant. Valid instance numbers start with 1.
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@return The function always return EFI_SUCCESS.
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**/
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EFI_STATUS
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RtMemoryStatusCodeReportWorker (
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RUNTIME_MEMORY_STATUSCODE_HEADER *RtMemoryStatusCodeTable,
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IN EFI_STATUS_CODE_TYPE CodeType,
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IN EFI_STATUS_CODE_VALUE Value,
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IN UINT32 Instance
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)
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{
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MEMORY_STATUSCODE_RECORD *Record;
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ASSERT (NULL != RtMemoryStatusCodeTable);
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//
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// Locate current record buffer.
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//
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Record = (MEMORY_STATUSCODE_RECORD *) (RtMemoryStatusCodeTable + 1);
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Record = &Record[RtMemoryStatusCodeTable->RecordIndex++];
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//
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// Save status code.
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//
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Record->CodeType = CodeType;
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Record->Value = Value;
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Record->Instance = Instance;
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//
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// Record total number of records, we compare the number with max records number,
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// if it is bigger than the max number, then the roll back had happened, the record index points to
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// the first record. if it is less then max number, then the zero index is the first record.
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//
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RtMemoryStatusCodeTable->NumberOfRecords++;
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if (RtMemoryStatusCodeTable->RecordIndex == RtMemoryStatusCodeTable->MaxRecordsNumber) {
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//
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// Roll back record index.
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//
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RtMemoryStatusCodeTable->RecordIndex = 0;
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}
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return EFI_SUCCESS;
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}
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