diff options
| author | Guo Mang <mang.guo@intel.com> | 2016-12-22 15:55:38 +0800 |
|---|---|---|
| committer | Guo Mang <mang.guo@intel.com> | 2016-12-26 19:14:37 +0800 |
| commit | 7f05fa00f73038b425002566d3afe6c3ade2ccdb (patch) | |
| tree | 297e208d4ade33a8bb3d5d20f72c53e0d134e003 /Core/MdeModulePkg/Application/VariableInfo/VariableInfo.c | |
| parent | ed2ecce34b3830562c4239093a41ba92d76d5f31 (diff) | |
| download | edk2-platforms-7f05fa00f73038b425002566d3afe6c3ade2ccdb.tar.xz | |
MdeModulePkg: Move to new location
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'Core/MdeModulePkg/Application/VariableInfo/VariableInfo.c')
| -rw-r--r-- | Core/MdeModulePkg/Application/VariableInfo/VariableInfo.c | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/Core/MdeModulePkg/Application/VariableInfo/VariableInfo.c b/Core/MdeModulePkg/Application/VariableInfo/VariableInfo.c new file mode 100644 index 0000000000..a88b7f1ec4 --- /dev/null +++ b/Core/MdeModulePkg/Application/VariableInfo/VariableInfo.c @@ -0,0 +1,277 @@ +/** @file
+ If the Variable services have PcdVariableCollectStatistics set to TRUE then
+ this utility will print out the statistics information. You can use console
+ redirection to capture the data.
+
+ Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Uefi.h>
+#include <Library/UefiLib.h>
+#include <Library/UefiApplicationEntryPoint.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/BaseLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+
+#include <Guid/VariableFormat.h>
+#include <Guid/SmmVariableCommon.h>
+#include <Guid/PiSmmCommunicationRegionTable.h>
+#include <Protocol/SmmCommunication.h>
+#include <Protocol/SmmVariable.h>
+
+EFI_SMM_COMMUNICATION_PROTOCOL *mSmmCommunication = NULL;
+
+/**
+ This function get the variable statistics data from SMM variable driver.
+
+ @param[in, out] SmmCommunicateHeader In input, a pointer to a collection of data that will
+ be passed into an SMM environment. In output, a pointer
+ to a collection of data that comes from an SMM environment.
+ @param[in, out] SmmCommunicateSize The size of the SmmCommunicateHeader.
+
+ @retval EFI_SUCCESS Get the statistics data information.
+ @retval EFI_NOT_FOUND Not found.
+ @retval EFI_BUFFER_TO_SMALL DataSize is too small for the result.
+
+**/
+EFI_STATUS
+EFIAPI
+GetVariableStatisticsData (
+ IN OUT EFI_SMM_COMMUNICATE_HEADER *SmmCommunicateHeader,
+ IN OUT UINTN *SmmCommunicateSize
+ )
+{
+ EFI_STATUS Status;
+ SMM_VARIABLE_COMMUNICATE_HEADER *SmmVariableFunctionHeader;
+
+ CopyGuid (&SmmCommunicateHeader->HeaderGuid, &gEfiSmmVariableProtocolGuid);
+ SmmCommunicateHeader->MessageLength = *SmmCommunicateSize - OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);
+
+ SmmVariableFunctionHeader = (SMM_VARIABLE_COMMUNICATE_HEADER *) &SmmCommunicateHeader->Data[0];
+ SmmVariableFunctionHeader->Function = SMM_VARIABLE_FUNCTION_GET_STATISTICS;
+
+ Status = mSmmCommunication->Communicate (mSmmCommunication, SmmCommunicateHeader, SmmCommunicateSize);
+ ASSERT_EFI_ERROR (Status);
+
+ Status = SmmVariableFunctionHeader->ReturnStatus;
+ return Status;
+}
+
+/**
+
+ This function get and print the variable statistics data from SMM variable driver.
+
+ @retval EFI_SUCCESS Print the statistics information successfully.
+ @retval EFI_NOT_FOUND Not found the statistics information.
+
+**/
+EFI_STATUS
+PrintInfoFromSmm (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ VARIABLE_INFO_ENTRY *VariableInfo;
+ EFI_SMM_COMMUNICATE_HEADER *CommBuffer;
+ UINTN RealCommSize;
+ UINTN CommSize;
+ SMM_VARIABLE_COMMUNICATE_HEADER *FunctionHeader;
+ EFI_SMM_VARIABLE_PROTOCOL *Smmvariable;
+ EDKII_PI_SMM_COMMUNICATION_REGION_TABLE *PiSmmCommunicationRegionTable;
+ UINT32 Index;
+ EFI_MEMORY_DESCRIPTOR *Entry;
+ UINTN Size;
+ UINTN MaxSize;
+
+ Status = gBS->LocateProtocol (&gEfiSmmVariableProtocolGuid, NULL, (VOID **) &Smmvariable);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = gBS->LocateProtocol (&gEfiSmmCommunicationProtocolGuid, NULL, (VOID **) &mSmmCommunication);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ CommBuffer = NULL;
+ RealCommSize = 0;
+ Status = EfiGetSystemConfigurationTable (
+ &gEdkiiPiSmmCommunicationRegionTableGuid,
+ (VOID **) &PiSmmCommunicationRegionTable
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ ASSERT (PiSmmCommunicationRegionTable != NULL);
+ Entry = (EFI_MEMORY_DESCRIPTOR *) (PiSmmCommunicationRegionTable + 1);
+ Size = 0;
+ MaxSize = 0;
+ for (Index = 0; Index < PiSmmCommunicationRegionTable->NumberOfEntries; Index++) {
+ if (Entry->Type == EfiConventionalMemory) {
+ Size = EFI_PAGES_TO_SIZE ((UINTN) Entry->NumberOfPages);
+ if (Size > (SMM_COMMUNICATE_HEADER_SIZE + SMM_VARIABLE_COMMUNICATE_HEADER_SIZE + sizeof (VARIABLE_INFO_ENTRY))) {
+ if (Size > MaxSize) {
+ MaxSize = Size;
+ RealCommSize = MaxSize;
+ CommBuffer = (EFI_SMM_COMMUNICATE_HEADER *) (UINTN) Entry->PhysicalStart;
+ }
+ }
+ }
+ Entry = (EFI_MEMORY_DESCRIPTOR *) ((UINT8 *) Entry + PiSmmCommunicationRegionTable->DescriptorSize);
+ }
+ ASSERT (CommBuffer != NULL);
+ ZeroMem (CommBuffer, RealCommSize);
+
+ Print (L"Non-Volatile SMM Variables:\n");
+ do {
+ CommSize = RealCommSize;
+ Status = GetVariableStatisticsData (CommBuffer, &CommSize);
+ if (Status == EFI_BUFFER_TOO_SMALL) {
+ Print (L"The generic SMM communication buffer provided by SmmCommunicationRegionTable is too small\n");
+ return Status;
+ }
+
+ if (EFI_ERROR (Status) || (CommSize <= SMM_COMMUNICATE_HEADER_SIZE + SMM_VARIABLE_COMMUNICATE_HEADER_SIZE)) {
+ break;
+ }
+
+ FunctionHeader = (SMM_VARIABLE_COMMUNICATE_HEADER *) CommBuffer->Data;
+ VariableInfo = (VARIABLE_INFO_ENTRY *) FunctionHeader->Data;
+
+ if (!VariableInfo->Volatile) {
+ Print (
+ L"%g R%03d(%03d) W%03d D%03d:%s\n",
+ &VariableInfo->VendorGuid,
+ VariableInfo->ReadCount,
+ VariableInfo->CacheCount,
+ VariableInfo->WriteCount,
+ VariableInfo->DeleteCount,
+ (CHAR16 *)(VariableInfo + 1)
+ );
+ }
+ } while (TRUE);
+
+ Print (L"Volatile SMM Variables:\n");
+ ZeroMem (CommBuffer, RealCommSize);
+ do {
+ CommSize = RealCommSize;
+ Status = GetVariableStatisticsData (CommBuffer, &CommSize);
+ if (Status == EFI_BUFFER_TOO_SMALL) {
+ Print (L"The generic SMM communication buffer provided by SmmCommunicationRegionTable is too small\n");
+ return Status;
+ }
+
+ if (EFI_ERROR (Status) || (CommSize <= SMM_COMMUNICATE_HEADER_SIZE + SMM_VARIABLE_COMMUNICATE_HEADER_SIZE)) {
+ break;
+ }
+
+ FunctionHeader = (SMM_VARIABLE_COMMUNICATE_HEADER *) CommBuffer->Data;
+ VariableInfo = (VARIABLE_INFO_ENTRY *) FunctionHeader->Data;
+
+ if (VariableInfo->Volatile) {
+ Print (
+ L"%g R%03d(%03d) W%03d D%03d:%s\n",
+ &VariableInfo->VendorGuid,
+ VariableInfo->ReadCount,
+ VariableInfo->CacheCount,
+ VariableInfo->WriteCount,
+ VariableInfo->DeleteCount,
+ (CHAR16 *)(VariableInfo + 1)
+ );
+ }
+ } while (TRUE);
+
+ return Status;
+}
+
+/**
+ The user Entry Point for Application. The user code starts with this function
+ as the real entry point for the image goes into a library that calls this
+ function.
+
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.
+ @param[in] SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The entry point is executed successfully.
+ @retval other Some error occurs when executing this entry point.
+
+**/
+EFI_STATUS
+EFIAPI
+UefiMain (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ VARIABLE_INFO_ENTRY *VariableInfo;
+ VARIABLE_INFO_ENTRY *Entry;
+
+ Status = EfiGetSystemConfigurationTable (&gEfiVariableGuid, (VOID **)&Entry);
+ if (EFI_ERROR (Status) || (Entry == NULL)) {
+ Status = EfiGetSystemConfigurationTable (&gEfiAuthenticatedVariableGuid, (VOID **)&Entry);
+ }
+
+ if (EFI_ERROR (Status) || (Entry == NULL)) {
+ Status = PrintInfoFromSmm ();
+ if (!EFI_ERROR (Status)) {
+ return Status;
+ }
+ }
+
+ if (!EFI_ERROR (Status) && (Entry != NULL)) {
+ Print (L"Non-Volatile EFI Variables:\n");
+ VariableInfo = Entry;
+ do {
+ if (!VariableInfo->Volatile) {
+ Print (
+ L"%g R%03d(%03d) W%03d D%03d:%s\n",
+ &VariableInfo->VendorGuid,
+ VariableInfo->ReadCount,
+ VariableInfo->CacheCount,
+ VariableInfo->WriteCount,
+ VariableInfo->DeleteCount,
+ VariableInfo->Name
+ );
+ }
+
+ VariableInfo = VariableInfo->Next;
+ } while (VariableInfo != NULL);
+
+ Print (L"Volatile EFI Variables:\n");
+ VariableInfo = Entry;
+ do {
+ if (VariableInfo->Volatile) {
+ Print (
+ L"%g R%03d(%03d) W%03d D%03d:%s\n",
+ &VariableInfo->VendorGuid,
+ VariableInfo->ReadCount,
+ VariableInfo->CacheCount,
+ VariableInfo->WriteCount,
+ VariableInfo->DeleteCount,
+ VariableInfo->Name
+ );
+ }
+ VariableInfo = VariableInfo->Next;
+ } while (VariableInfo != NULL);
+
+ } else {
+ Print (L"Warning: Variable Dxe/Smm driver doesn't enable the feature of statistical information!\n");
+ Print (L"If you want to see this info, please:\n");
+ Print (L" 1. Set PcdVariableCollectStatistics as TRUE\n");
+ Print (L" 2. Rebuild Variable Dxe/Smm driver\n");
+ Print (L" 3. Run \"VariableInfo\" cmd again\n");
+ }
+
+ return Status;
+}
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