diff options
| author | Star Zeng <star.zeng@intel.com> | 2015-07-01 03:02:45 +0000 |
|---|---|---|
| committer | lzeng14 <lzeng14@Edk2> | 2015-07-01 03:02:45 +0000 |
| commit | 627e117a727c3ba93ce8fce697f7b9dbe654c408 (patch) | |
| tree | 951d315feff0ac9dcc434f5d39097e5e21acd228 /MdeModulePkg/Application/VariableInfo/VariableInfo.c | |
| parent | 1fe6c1255b6e8c0b94d142dae3f8ff7e67c25ce8 (diff) | |
| download | edk2-platforms-627e117a727c3ba93ce8fce697f7b9dbe654c408.tar.xz | |
MdeModulePkg VariableInfo: Merge from VariableInfo in SecurityPkg
What to do:
1. Merge VariableInfo in SecurityPkg to VariableInfo in MdeModulePkg.
Why to do:
1. Remove code duplication and reduce maintenance effort.
The functionality of VariableInfo in SecurityPkg has covered VariableInfo
in MdeModulePkg.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17755 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Application/VariableInfo/VariableInfo.c')
| -rw-r--r-- | MdeModulePkg/Application/VariableInfo/VariableInfo.c | 209 |
1 files changed, 187 insertions, 22 deletions
diff --git a/MdeModulePkg/Application/VariableInfo/VariableInfo.c b/MdeModulePkg/Application/VariableInfo/VariableInfo.c index 50b67d0974..727e1ce105 100644 --- a/MdeModulePkg/Application/VariableInfo/VariableInfo.c +++ b/MdeModulePkg/Application/VariableInfo/VariableInfo.c @@ -1,35 +1,190 @@ /** @file
- If the Variable services have PcdVariableCollectStatistics set to TRUE then
- the EFI system table will contain statistical information about variable usage
- an this utility will print out the information. You can use console redirection
- to capture the data.
-
- Copyright (c) 2006 - 2007, 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.
+ 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 - 2015, 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 <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;
+
+ 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;
+ }
+
+ CommSize = SMM_COMMUNICATE_HEADER_SIZE + SMM_VARIABLE_COMMUNICATE_HEADER_SIZE;
+ RealCommSize = CommSize;
+ CommBuffer = AllocateZeroPool (CommSize);
+ ASSERT (CommBuffer != NULL);
+
+ Print (L"Non-Volatile SMM Variables:\n");
+ do {
+ Status = GetVariableStatisticsData (CommBuffer, &CommSize);
+ if (Status == EFI_BUFFER_TOO_SMALL) {
+ FreePool (CommBuffer);
+ CommBuffer = AllocateZeroPool (CommSize);
+ ASSERT (CommBuffer != NULL);
+ RealCommSize = CommSize;
+ Status = GetVariableStatisticsData (CommBuffer, &CommSize);
+ }
+
+ if (EFI_ERROR (Status) || (CommSize <= SMM_COMMUNICATE_HEADER_SIZE + SMM_VARIABLE_COMMUNICATE_HEADER_SIZE)) {
+ break;
+ }
+
+ if (CommSize < RealCommSize) {
+ CommSize = RealCommSize;
+ }
+
+ 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, CommSize);
+ do {
+ Status = GetVariableStatisticsData (CommBuffer, &CommSize);
+ if (Status == EFI_BUFFER_TOO_SMALL) {
+ FreePool (CommBuffer);
+ CommBuffer = AllocateZeroPool (CommSize);
+ ASSERT (CommBuffer != NULL);
+ RealCommSize = CommSize;
+ Status = GetVariableStatisticsData (CommBuffer, &CommSize);
+ }
+
+ if (EFI_ERROR (Status) || (CommSize <= SMM_COMMUNICATE_HEADER_SIZE + SMM_VARIABLE_COMMUNICATE_HEADER_SIZE)) {
+ break;
+ }
+
+ if (CommSize < RealCommSize) {
+ CommSize = RealCommSize;
+ }
+
+ 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);
+
+ FreePool (CommBuffer);
+ 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
+ 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] 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.
@@ -46,14 +201,25 @@ UefiMain ( 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,
+ L"%g R%03d(%03d) W%03d D%03d:%s\n",
+ &VariableInfo->VendorGuid,
VariableInfo->ReadCount,
VariableInfo->CacheCount,
VariableInfo->WriteCount,
@@ -70,8 +236,8 @@ UefiMain ( do {
if (VariableInfo->Volatile) {
Print (
- L"%g R%03d(%03d) W%03d D%03d:%s\n",
- &VariableInfo->VendorGuid,
+ L"%g R%03d(%03d) W%03d D%03d:%s\n",
+ &VariableInfo->VendorGuid,
VariableInfo->ReadCount,
VariableInfo->CacheCount,
VariableInfo->WriteCount,
@@ -88,7 +254,6 @@ UefiMain ( Print (L" 1. Set PcdVariableCollectStatistics as TRUE\n");
Print (L" 2. Rebuild Variable Dxe driver\n");
Print (L" 3. Run \"VariableInfo\" cmd again\n");
-
}
return Status;
|