/** @file\r
SMM Core Main Entry Point\r
\r
- Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.<BR>\r
+ Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials are licensed and made available \r
under the terms and conditions of the BSD License which accompanies this \r
distribution. The full text of the license may be found at \r
// Table of SMI Handlers that are registered by the SMM Core when it is initialized\r
//\r
SMM_CORE_SMI_HANDLERS mSmmCoreSmiHandlers[] = {\r
- { SmmDriverDispatchHandler, &gEfiEventDxeDispatchGuid, NULL, TRUE },\r
- { SmmReadyToLockHandler, &gEfiDxeSmmReadyToLockProtocolGuid, NULL, TRUE }, \r
- { SmmLegacyBootHandler, &gEfiEventLegacyBootGuid, NULL, FALSE },\r
- { SmmExitBootServicesHandler, &gEfiEventExitBootServicesGuid, NULL, FALSE },\r
- { SmmReadyToBootHandler, &gEfiEventReadyToBootGuid, NULL, FALSE },\r
- { SmmEndOfDxeHandler, &gEfiEndOfDxeEventGroupGuid, NULL, TRUE },\r
- { NULL, NULL, NULL, FALSE }\r
+ { SmmDriverDispatchHandler, &gEfiEventDxeDispatchGuid, NULL, TRUE },\r
+ { SmmReadyToLockHandler, &gEfiDxeSmmReadyToLockProtocolGuid, NULL, TRUE }, \r
+ { SmmLegacyBootHandler, &gEfiEventLegacyBootGuid, NULL, FALSE },\r
+ { SmmExitBootServicesHandler, &gEfiEventExitBootServicesGuid, NULL, FALSE },\r
+ { SmmReadyToBootHandler, &gEfiEventReadyToBootGuid, NULL, FALSE },\r
+ { SmmEndOfDxeHandler, &gEfiEndOfDxeEventGroupGuid, NULL, TRUE },\r
+ { SmmEndOfS3ResumeHandler, &gEdkiiSmmEndOfS3ResumeProtocolGuid, NULL, FALSE },\r
+ { NULL, NULL, NULL, FALSE }\r
};\r
\r
UINTN mFullSmramRangeCount;\r
EFI_SMRAM_DESCRIPTOR *mFullSmramRanges;\r
\r
+EFI_SMM_DRIVER_ENTRY *mSmmCoreDriverEntry;\r
+\r
EFI_LOADED_IMAGE_PROTOCOL *mSmmCoreLoadedImage;\r
\r
/**\r
or if gEfiEventReadyToBootGuid is signalled. This function unregisters the \r
Software SMIs that are nor required after SMRAM is locked and installs the \r
SMM Ready To Lock Protocol so SMM Drivers are informed that SMRAM is about \r
- to be locked. It also verifies the the SMM CPU I/O 2 Protocol has been installed\r
+ to be locked. It also verifies the SMM CPU I/O 2 Protocol has been installed\r
and NULLs gBS and gST because they can not longer be used after SMRAM is locked.\r
\r
@param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().\r
return Status;\r
}\r
\r
+/**\r
+ Software SMI handler that is called when the EndOfS3Resume event is trigged.\r
+ This function installs the SMM EndOfS3Resume Protocol so SMM Drivers are informed that\r
+ S3 resume has finished.\r
+\r
+ @param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().\r
+ @param Context Points to an optional handler context which was specified when the handler was registered.\r
+ @param CommBuffer A pointer to a collection of data in memory that will\r
+ be conveyed from a non-SMM environment into an SMM environment.\r
+ @param CommBufferSize The size of the CommBuffer.\r
+\r
+ @return Status Code\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SmmEndOfS3ResumeHandler (\r
+ IN EFI_HANDLE DispatchHandle,\r
+ IN CONST VOID *Context, OPTIONAL\r
+ IN OUT VOID *CommBuffer, OPTIONAL\r
+ IN OUT UINTN *CommBufferSize OPTIONAL\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_HANDLE SmmHandle;\r
+\r
+ DEBUG ((EFI_D_INFO, "SmmEndOfS3ResumeHandler\n"));\r
+\r
+ //\r
+ // Install SMM EndOfS3Resume protocol\r
+ //\r
+ SmmHandle = NULL;\r
+ Status = SmmInstallProtocolInterface (\r
+ &SmmHandle,\r
+ &gEdkiiSmmEndOfS3ResumeProtocolGuid,\r
+ EFI_NATIVE_INTERFACE,\r
+ NULL\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ //\r
+ // Uninstall the protocol here because the comsume just hook the\r
+ // installation event.\r
+ //\r
+ Status = SmmUninstallProtocolInterface (\r
+ SmmHandle,\r
+ &gEdkiiSmmEndOfS3ResumeProtocolGuid,\r
+ NULL\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ return Status;\r
+}\r
+\r
/**\r
Determine if two buffers overlap in memory.\r
\r
EFI_SMM_COMMUNICATE_HEADER *CommunicateHeader;\r
BOOLEAN InLegacyBoot;\r
BOOLEAN IsOverlapped;\r
+ VOID *CommunicationBuffer;\r
+ UINTN BufferSize;\r
\r
PERF_START (NULL, "SMM", NULL, 0) ;\r
\r
//\r
PlatformHookBeforeSmmDispatch ();\r
\r
+ //\r
+ // Call memory management hook function\r
+ //\r
+ SmmEntryPointMemoryManagementHook ();\r
+\r
//\r
// If a legacy boot has occured, then make sure gSmmCorePrivate is not accessed\r
//\r
// Check to see if this is a Synchronous SMI sent through the SMM Communication \r
// Protocol or an Asynchronous SMI\r
//\r
- if (gSmmCorePrivate->CommunicationBuffer != NULL) {\r
+ CommunicationBuffer = gSmmCorePrivate->CommunicationBuffer;\r
+ BufferSize = gSmmCorePrivate->BufferSize;\r
+ if (CommunicationBuffer != NULL) {\r
//\r
// Synchronous SMI for SMM Core or request from Communicate protocol\r
//\r
IsOverlapped = InternalIsBufferOverlapped (\r
- (UINT8 *) gSmmCorePrivate->CommunicationBuffer,\r
- gSmmCorePrivate->BufferSize,\r
+ (UINT8 *) CommunicationBuffer,\r
+ BufferSize,\r
(UINT8 *) gSmmCorePrivate,\r
sizeof (*gSmmCorePrivate)\r
);\r
- if (!SmmIsBufferOutsideSmmValid ((UINTN)gSmmCorePrivate->CommunicationBuffer, gSmmCorePrivate->BufferSize) || IsOverlapped) {\r
+ if (!SmmIsBufferOutsideSmmValid ((UINTN)CommunicationBuffer, BufferSize) || IsOverlapped) {\r
//\r
// If CommunicationBuffer is not in valid address scope,\r
// or there is overlap between gSmmCorePrivate and CommunicationBuffer,\r
gSmmCorePrivate->CommunicationBuffer = NULL;\r
gSmmCorePrivate->ReturnStatus = EFI_INVALID_PARAMETER;\r
} else {\r
- CommunicateHeader = (EFI_SMM_COMMUNICATE_HEADER *)gSmmCorePrivate->CommunicationBuffer;\r
- gSmmCorePrivate->BufferSize -= OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);\r
+ CommunicateHeader = (EFI_SMM_COMMUNICATE_HEADER *)CommunicationBuffer;\r
+ BufferSize -= OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);\r
Status = SmiManage (\r
&CommunicateHeader->HeaderGuid, \r
NULL, \r
CommunicateHeader->Data, \r
- &gSmmCorePrivate->BufferSize\r
+ &BufferSize\r
);\r
//\r
// Update CommunicationBuffer, BufferSize and ReturnStatus\r
// Communicate service finished, reset the pointer to CommBuffer to NULL\r
//\r
- gSmmCorePrivate->BufferSize += OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);\r
+ gSmmCorePrivate->BufferSize = BufferSize + OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);\r
gSmmCorePrivate->CommunicationBuffer = NULL;\r
gSmmCorePrivate->ReturnStatus = (Status == EFI_SUCCESS) ? EFI_SUCCESS : EFI_NOT_FOUND;\r
}\r
);\r
ASSERT_EFI_ERROR (Status);\r
\r
+ //\r
+ // Allocate a Loaded Image Protocol in SMM\r
+ //\r
+ Status = SmmAllocatePool (EfiRuntimeServicesData, sizeof(EFI_SMM_DRIVER_ENTRY), (VOID **)&mSmmCoreDriverEntry);\r
+ ASSERT_EFI_ERROR(Status);\r
+\r
+ ZeroMem (mSmmCoreDriverEntry, sizeof(EFI_SMM_DRIVER_ENTRY));\r
+ //\r
+ // Fill in the remaining fields of the Loaded Image Protocol instance.\r
+ //\r
+ mSmmCoreDriverEntry->Signature = EFI_SMM_DRIVER_ENTRY_SIGNATURE;\r
+ mSmmCoreDriverEntry->SmmLoadedImage.Revision = EFI_LOADED_IMAGE_PROTOCOL_REVISION;\r
+ mSmmCoreDriverEntry->SmmLoadedImage.ParentHandle = gSmmCorePrivate->SmmIplImageHandle;\r
+ mSmmCoreDriverEntry->SmmLoadedImage.SystemTable = gST;\r
+\r
+ mSmmCoreDriverEntry->SmmLoadedImage.ImageBase = (VOID *)(UINTN)gSmmCorePrivate->PiSmmCoreImageBase;\r
+ mSmmCoreDriverEntry->SmmLoadedImage.ImageSize = gSmmCorePrivate->PiSmmCoreImageSize;\r
+ mSmmCoreDriverEntry->SmmLoadedImage.ImageCodeType = EfiRuntimeServicesCode;\r
+ mSmmCoreDriverEntry->SmmLoadedImage.ImageDataType = EfiRuntimeServicesData;\r
+\r
+ mSmmCoreDriverEntry->ImageEntryPoint = gSmmCorePrivate->PiSmmCoreEntryPoint;\r
+ mSmmCoreDriverEntry->ImageBuffer = gSmmCorePrivate->PiSmmCoreImageBase;\r
+ mSmmCoreDriverEntry->NumberOfPage = EFI_SIZE_TO_PAGES((UINTN)gSmmCorePrivate->PiSmmCoreImageSize);\r
+\r
+ //\r
+ // Create a new image handle in the SMM handle database for the SMM Driver\r
+ //\r
+ mSmmCoreDriverEntry->SmmImageHandle = NULL;\r
+ Status = SmmInstallProtocolInterface (\r
+ &mSmmCoreDriverEntry->SmmImageHandle,\r
+ &gEfiLoadedImageProtocolGuid,\r
+ EFI_NATIVE_INTERFACE,\r
+ &mSmmCoreDriverEntry->SmmLoadedImage\r
+ );\r
+ ASSERT_EFI_ERROR(Status);\r
+\r
return ;\r
}\r
\r
//\r
gSmmCorePrivate->Smst = &gSmmCoreSmst;\r
gSmmCorePrivate->SmmEntryPoint = SmmEntryPoint;\r
- \r
+\r
//\r
// No need to initialize memory service.\r
// It is done in constructor of PiSmmCoreMemoryAllocationLib(),\r
\r
SmmCoreInstallLoadedImage ();\r
\r
+ SmmCoreInitializeMemoryAttributesTable ();\r
+\r
+ SmmCoreInitializeSmiHandlerProfile ();\r
+\r
return EFI_SUCCESS;\r
}\r
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