/** @file\r
- If the Variable services have PcdVariableCollectStatistics set to TRUE then \r
- the EFI system table will contain statistical information about variable usage\r
- an this utility will print out the information. You can use console redirection\r
- to capture the data.\r
- \r
- Copyright (c) 2006 - 2007, Intel Corporation. All rights reserved.<BR>\r
- This program and the accompanying materials \r
- are licensed and made available under the terms and conditions of the BSD License \r
- which accompanies this distribution. The full text of the license may be found at \r
- http://opensource.org/licenses/bsd-license.php \r
-\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+ If the Variable services have PcdVariableCollectStatistics set to TRUE then\r
+ this utility will print out the statistics information. You can use console\r
+ redirection to capture the data.\r
+\r
+ Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions of the BSD License\r
+ which accompanies this distribution. The full text of the license may be found at\r
+ http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#include <Uefi.h>\r
#include <Library/UefiLib.h>\r
#include <Library/UefiApplicationEntryPoint.h>\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/BaseLib.h>\r
+#include <Library/MemoryAllocationLib.h>\r
+#include <Library/DebugLib.h>\r
+#include <Library/UefiBootServicesTableLib.h>\r
+\r
#include <Guid/VariableFormat.h>\r
+#include <Guid/SmmVariableCommon.h>\r
+#include <Protocol/SmmCommunication.h>\r
+#include <Protocol/SmmVariable.h>\r
+\r
+EFI_SMM_COMMUNICATION_PROTOCOL *mSmmCommunication = NULL;\r
+\r
+/**\r
+ This function get the variable statistics data from SMM variable driver.\r
+\r
+ @param[in, out] SmmCommunicateHeader In input, a pointer to a collection of data that will\r
+ be passed into an SMM environment. In output, a pointer\r
+ to a collection of data that comes from an SMM environment.\r
+ @param[in, out] SmmCommunicateSize The size of the SmmCommunicateHeader.\r
+\r
+ @retval EFI_SUCCESS Get the statistics data information.\r
+ @retval EFI_NOT_FOUND Not found.\r
+ @retval EFI_BUFFER_TO_SMALL DataSize is too small for the result.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+GetVariableStatisticsData (\r
+ IN OUT EFI_SMM_COMMUNICATE_HEADER *SmmCommunicateHeader,\r
+ IN OUT UINTN *SmmCommunicateSize\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ SMM_VARIABLE_COMMUNICATE_HEADER *SmmVariableFunctionHeader;\r
+\r
+ CopyGuid (&SmmCommunicateHeader->HeaderGuid, &gEfiSmmVariableProtocolGuid);\r
+ SmmCommunicateHeader->MessageLength = *SmmCommunicateSize - OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);\r
+\r
+ SmmVariableFunctionHeader = (SMM_VARIABLE_COMMUNICATE_HEADER *) &SmmCommunicateHeader->Data[0];\r
+ SmmVariableFunctionHeader->Function = SMM_VARIABLE_FUNCTION_GET_STATISTICS;\r
\r
+ Status = mSmmCommunication->Communicate (mSmmCommunication, SmmCommunicateHeader, SmmCommunicateSize);\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ Status = SmmVariableFunctionHeader->ReturnStatus;\r
+ return Status;\r
+}\r
+\r
+/**\r
+\r
+ This function get and print the variable statistics data from SMM variable driver.\r
+\r
+ @retval EFI_SUCCESS Print the statistics information successfully.\r
+ @retval EFI_NOT_FOUND Not found the statistics information.\r
+\r
+**/\r
+EFI_STATUS\r
+PrintInfoFromSmm (\r
+ VOID\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ VARIABLE_INFO_ENTRY *VariableInfo;\r
+ EFI_SMM_COMMUNICATE_HEADER *CommBuffer;\r
+ UINTN RealCommSize;\r
+ UINTN CommSize;\r
+ SMM_VARIABLE_COMMUNICATE_HEADER *FunctionHeader;\r
+ EFI_SMM_VARIABLE_PROTOCOL *Smmvariable;\r
+\r
+ Status = gBS->LocateProtocol (&gEfiSmmVariableProtocolGuid, NULL, (VOID **) &Smmvariable);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ Status = gBS->LocateProtocol (&gEfiSmmCommunicationProtocolGuid, NULL, (VOID **) &mSmmCommunication);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ CommSize = SMM_COMMUNICATE_HEADER_SIZE + SMM_VARIABLE_COMMUNICATE_HEADER_SIZE;\r
+ RealCommSize = CommSize;\r
+ CommBuffer = AllocateZeroPool (CommSize);\r
+ ASSERT (CommBuffer != NULL);\r
+\r
+ Print (L"Non-Volatile SMM Variables:\n");\r
+ do {\r
+ Status = GetVariableStatisticsData (CommBuffer, &CommSize);\r
+ if (Status == EFI_BUFFER_TOO_SMALL) {\r
+ FreePool (CommBuffer);\r
+ CommBuffer = AllocateZeroPool (CommSize);\r
+ ASSERT (CommBuffer != NULL);\r
+ RealCommSize = CommSize;\r
+ Status = GetVariableStatisticsData (CommBuffer, &CommSize);\r
+ }\r
+\r
+ if (EFI_ERROR (Status) || (CommSize <= SMM_COMMUNICATE_HEADER_SIZE + SMM_VARIABLE_COMMUNICATE_HEADER_SIZE)) {\r
+ break;\r
+ }\r
+\r
+ if (CommSize < RealCommSize) {\r
+ CommSize = RealCommSize;\r
+ }\r
+\r
+ FunctionHeader = (SMM_VARIABLE_COMMUNICATE_HEADER *) CommBuffer->Data;\r
+ VariableInfo = (VARIABLE_INFO_ENTRY *) FunctionHeader->Data;\r
+\r
+ if (!VariableInfo->Volatile) {\r
+ Print (\r
+ L"%g R%03d(%03d) W%03d D%03d:%s\n",\r
+ &VariableInfo->VendorGuid,\r
+ VariableInfo->ReadCount,\r
+ VariableInfo->CacheCount,\r
+ VariableInfo->WriteCount,\r
+ VariableInfo->DeleteCount,\r
+ (CHAR16 *)(VariableInfo + 1)\r
+ );\r
+ }\r
+ } while (TRUE);\r
+\r
+ Print (L"Volatile SMM Variables:\n");\r
+ ZeroMem (CommBuffer, CommSize);\r
+ do {\r
+ Status = GetVariableStatisticsData (CommBuffer, &CommSize);\r
+ if (Status == EFI_BUFFER_TOO_SMALL) {\r
+ FreePool (CommBuffer);\r
+ CommBuffer = AllocateZeroPool (CommSize);\r
+ ASSERT (CommBuffer != NULL);\r
+ RealCommSize = CommSize;\r
+ Status = GetVariableStatisticsData (CommBuffer, &CommSize);\r
+ }\r
+\r
+ if (EFI_ERROR (Status) || (CommSize <= SMM_COMMUNICATE_HEADER_SIZE + SMM_VARIABLE_COMMUNICATE_HEADER_SIZE)) {\r
+ break;\r
+ }\r
+\r
+ if (CommSize < RealCommSize) {\r
+ CommSize = RealCommSize;\r
+ }\r
+\r
+ FunctionHeader = (SMM_VARIABLE_COMMUNICATE_HEADER *) CommBuffer->Data;\r
+ VariableInfo = (VARIABLE_INFO_ENTRY *) FunctionHeader->Data;\r
+\r
+ if (VariableInfo->Volatile) {\r
+ Print (\r
+ L"%g R%03d(%03d) W%03d D%03d:%s\n",\r
+ &VariableInfo->VendorGuid,\r
+ VariableInfo->ReadCount,\r
+ VariableInfo->CacheCount,\r
+ VariableInfo->WriteCount,\r
+ VariableInfo->DeleteCount,\r
+ (CHAR16 *)(VariableInfo + 1)\r
+ );\r
+ }\r
+ } while (TRUE);\r
+\r
+ FreePool (CommBuffer);\r
+ return Status;\r
+}\r
\r
/**\r
The user Entry Point for Application. The user code starts with this function\r
- as the real entry point for the image goes into a library that calls this \r
+ as the real entry point for the image goes into a library that calls this\r
function.\r
\r
-\r
- @param[in] ImageHandle The firmware allocated handle for the EFI image. \r
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.\r
@param[in] SystemTable A pointer to the EFI System Table.\r
- \r
+\r
@retval EFI_SUCCESS The entry point is executed successfully.\r
@retval other Some error occurs when executing this entry point.\r
\r
VARIABLE_INFO_ENTRY *Entry;\r
\r
Status = EfiGetSystemConfigurationTable (&gEfiVariableGuid, (VOID **)&Entry);\r
+ if (EFI_ERROR (Status) || (Entry == NULL)) {\r
+ Status = EfiGetSystemConfigurationTable (&gEfiAuthenticatedVariableGuid, (VOID **)&Entry);\r
+ }\r
+\r
+ if (EFI_ERROR (Status) || (Entry == NULL)) {\r
+ Status = PrintInfoFromSmm ();\r
+ if (!EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ }\r
+\r
if (!EFI_ERROR (Status) && (Entry != NULL)) {\r
Print (L"Non-Volatile EFI Variables:\n");\r
VariableInfo = Entry;\r
do {\r
if (!VariableInfo->Volatile) {\r
Print (\r
- L"%g R%03d(%03d) W%03d D%03d:%s\n", \r
- &VariableInfo->VendorGuid, \r
+ L"%g R%03d(%03d) W%03d D%03d:%s\n",\r
+ &VariableInfo->VendorGuid,\r
VariableInfo->ReadCount,\r
VariableInfo->CacheCount,\r
VariableInfo->WriteCount,\r
do {\r
if (VariableInfo->Volatile) {\r
Print (\r
- L"%g R%03d(%03d) W%03d D%03d:%s\n", \r
- &VariableInfo->VendorGuid, \r
+ L"%g R%03d(%03d) W%03d D%03d:%s\n",\r
+ &VariableInfo->VendorGuid,\r
VariableInfo->ReadCount,\r
VariableInfo->CacheCount,\r
VariableInfo->WriteCount,\r
Print (L" 1. Set PcdVariableCollectStatistics as TRUE\n");\r
Print (L" 2. Rebuild Variable Dxe driver\n");\r
Print (L" 3. Run \"VariableInfo\" cmd again\n");\r
-\r
}\r
\r
return Status;\r
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