EdkModulePkg/Universal/StatusCode/Dxe/Common/DxeStatusCodeCommon.c

   1 /** @file
   2   Status code driver for IA32/X64/EBC architecture.
   3
   4   Copyright (c) 2006, Intel Corporation
   5   All rights reserved. This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13   Module Name:  DxeStatusCodeCommon.c
  14
  15 **/
  16 #include "DxeStatusCode.h"
  17
  18
  19 /**
  20   Report status code to all supported device.
  21   Calls into the workers which dispatches the platform specific
  22   listeners.
  23
  24   @param  Type          Indicates the type of status code being reported.
  25                         The type EFI_STATUS_CODE_TYPE is defined in "Related Definitions" below.
  26   @param  Value         Describes the current status of a hardware or software entity.
  27                         This includes information about the class and subclass that is used to classify the entity
  28                         as well as an operation.  For progress codes, the operation is the current activity.
  29                         For error codes, it is the exception.  For debug codes, it is not defined at this time.
  30                         Type EFI_STATUS_CODE_VALUE is defined in "Related Definitions" below.
  31                         Specific values are discussed in the Intel? Platform Innovation Framework for EFI Status Code Specification.
  32   @param  Instance      The enumeration of a hardware or software entity within the system.
  33                         A system may contain multiple entities that match a class/subclass pairing.
  34                         The instance differentiates between them.  An instance of 0 indicates that instance
  35                         information is unavailable, not meaningful, or not relevant.  Valid instance numbers start with 1.
  36   @param  CallerId      This optional parameter may be used to identify the caller.
  37                         This parameter allows the status code driver to apply different rules to different callers.
  38   @param  Data          This optional parameter may be used to pass additional data.
  39                         Type EFI_STATUS_CODE_DATA is defined in "Related Definitions" below.
  40                         The contents of this data type may have additional GUID-specific data.  The standard GUIDs and
  41                         their associated data structures are defined in the Intel? Platform Innovation Framework for EFI Status Codes Specification.
  42
  43   @return               Always return EFI_SUCCESS.
  44
  45 **/
  46 EFI_STATUS
  47 EFIAPI
  48 ReportDispatcher (
  49   IN EFI_STATUS_CODE_TYPE     Type,
  50   IN EFI_STATUS_CODE_VALUE    Value,
  51   IN UINT32                   Instance,
  52   IN EFI_GUID                 *CallerId  OPTIONAL,
  53   IN EFI_STATUS_CODE_DATA     *Data      OPTIONAL
  54   );
  55
  56 //
  57 // Declaration of status code protocol.
  58 //
  59 STATIC
  60 EFI_STATUS_CODE_PROTOCOL  mEfiStatusCodeProtocol  = {
  61   ReportDispatcher
  62 };
  63
  64 //
  65 // Delaration of DXE status code controller
  66 //
  67 DXE_STATUS_CODE_CONTROLLER gDxeStatusCode = {
  68   //
  69   // Initialize nest status as non nested.
  70   //
  71   0,
  72   {NULL, NULL}
  73 };
  74
  75 /**
  76
  77   Install the ReportStatusCode runtime service.
  78
  79   @param ImageHandle     Image handle of the loaded driver
  80   @param SystemTable     Pointer to the System Table
  81
  82   @return                The function always returns success.
  83
  84 **/
  85 EFI_STATUS
  86 DxeStatusCodeDriverEntry (
  87   IN EFI_HANDLE         ImageHandle,
  88   IN EFI_SYSTEM_TABLE   *SystemTable
  89   )
  90 {
  91   EFI_HANDLE  Handle       = NULL;
  92   EFI_STATUS  Status;
  93
  94   //
  95   // Dispatch initialization request to supported devices
  96   //
  97   InitializationDispatcherWorker ();
  98
  99   //
 100   // Install Status Code Architectural Protocol implementation as defined in Tiano
 101   // Architecture Specification.
 102   //
 103   Status = gBS->InstallMultipleProtocolInterfaces (
 104                   &Handle,
 105                   &gEfiStatusCodeRuntimeProtocolGuid,
 106                   &mEfiStatusCodeProtocol,
 107                   NULL
 108                   );
 109   ASSERT_EFI_ERROR (Status);
 110
 111   return Status;
 112 }
 113
 114 /**
 115   Report status code to all supported device.
 116   Calls into the workers which dispatches the platform specific
 117   listeners.
 118
 119   @param  CodeType      Indicates the type of status code being reported.
 120                         The type EFI_STATUS_CODE_TYPE is defined in "Related Definitions" below.
 121   @param  Value         Describes the current status of a hardware or software entity.
 122                         This includes information about the class and subclass that is used to classify the entity
 123                         as well as an operation.  For progress codes, the operation is the current activity.
 124                         For error codes, it is the exception.  For debug codes, it is not defined at this time.
 125                         Type EFI_STATUS_CODE_VALUE is defined in "Related Definitions" below.
 126                         Specific values are discussed in the Intel? Platform Innovation Framework for EFI Status Code Specification.
 127   @param  Instance      The enumeration of a hardware or software entity within the system.
 128                         A system may contain multiple entities that match a class/subclass pairing.
 129                         The instance differentiates between them.  An instance of 0 indicates that instance
 130                         information is unavailable, not meaningful, or not relevant.  Valid instance numbers start with 1.
 131   @param  CallerId      This optional parameter may be used to identify the caller.
 132                         This parameter allows the status code driver to apply different rules to different callers.
 133   @param  Data          This optional parameter may be used to pass additional data.
 134                         Type EFI_STATUS_CODE_DATA is defined in "Related Definitions" below.
 135                         The contents of this data type may have additional GUID-specific data.  The standard GUIDs and
 136                         their associated data structures are defined in the Intel? Platform Innovation Framework for EFI Status Codes Specification.
 137
 138   @return               Always return EFI_SUCCESS.
 139
 140 **/
 141 EFI_STATUS
 142 EFIAPI
 143 ReportDispatcher (
 144   IN EFI_STATUS_CODE_TYPE     CodeType,
 145   IN EFI_STATUS_CODE_VALUE    Value,
 146   IN UINT32                   Instance,
 147   IN EFI_GUID                 *CallerId  OPTIONAL,
 148   IN EFI_STATUS_CODE_DATA     *Data      OPTIONAL
 149   )
 150 {
 151         volatile int tt = 1;
 152         while (tt) {
 153         }
 154   //
 155   // Use atom operation to avoid the reentant of report.
 156   // If current status is not zero, then the function is reentrancy.
 157   //
 158   if (1 == InterlockedCompareExchange32 (&gDxeStatusCode.StatusCodeNestStatus, 0, 1)) {
 159     return EFI_DEVICE_ERROR;
 160   }
 161
 162   if (FeaturePcdGet (PcdStatusCodeUseEfiSerial) || FeaturePcdGet (PcdStatusCodeUseHardSerial)) {
 163     SerialStatusCodeReportWorker (
 164       CodeType,
 165       Value,
 166       Instance,
 167       CallerId,
 168       Data
 169       );
 170   }
 171   if (FeaturePcdGet (PcdStatusCodeUseRuntimeMemory)) {
 172     RtMemoryStatusCodeReportWorker (
 173       gDxeStatusCode.RtMemoryStatusCodeTable[PHYSICAL_MODE],
 174       CodeType,
 175       Value,
 176       Instance
 177       );
 178   }
 179   if (FeaturePcdGet (PcdStatusCodeUseDataHub)) {
 180     DataHubStatusCodeReportWorker (
 181       CodeType,
 182       Value,
 183       Instance,
 184       CallerId,
 185       Data
 186       );
 187   }
 188   if (FeaturePcdGet (PcdStatusCodeUseOEM)) {
 189     OemHookStatusCodeReport (
 190       CodeType,
 191       Value,
 192       Instance,
 193       CallerId,
 194       Data
 195       );
 196   }
 197
 198   //
 199   // Restore the nest status of report
 200   //
 201   InterlockedCompareExchange32 (&gDxeStatusCode.StatusCodeNestStatus, 1, 0);
 202
 203   return EFI_SUCCESS;
 204 }
 205
 206
 207 /**
 208   Virtual address change notification call back. It converts global pointer
 209   to virtual address.
 210
 211   @param  Event         Event whose notification function is being invoked.
 212   @param  Context       Pointer to the notification function's context, which is
 213                         always zero in current implementation.
 214
 215 **/
 216 VOID
 217 EFIAPI
 218 VirtualAddressChangeCallBack (
 219   IN EFI_EVENT        Event,
 220   IN VOID             *Context
 221   )
 222 {
 223   //
 224   // Convert memory status code table to virtual address;
 225   //
 226   EfiConvertPointer (
 227     0,
 228     (VOID **) &gDxeStatusCode.RtMemoryStatusCodeTable[PHYSICAL_MODE]
 229     );
 230 }
 231