]> git.proxmox.com Git - mirror_edk2.git/blobdiff - MdeModulePkg/Core/PiSmmCore/PiSmmCore.c
MdeModulePkg/PiSmmCore: Add SmiHandlerProfile support.
[mirror_edk2.git] / MdeModulePkg / Core / PiSmmCore / PiSmmCore.c
index 551560b1fce1e92466e271065c83855f39d14565..9e4390e15a1cbe69d44d57b0221ed8faaa297ac4 100644 (file)
@@ -1,7 +1,7 @@
 /** @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
@@ -87,6 +87,8 @@ SMM_CORE_SMI_HANDLERS  mSmmCoreSmiHandlers[] = {
 UINTN                           mFullSmramRangeCount;\r
 EFI_SMRAM_DESCRIPTOR            *mFullSmramRanges;\r
 \r
+EFI_SMM_DRIVER_ENTRY            *mSmmCoreDriverEntry;\r
+\r
 EFI_LOADED_IMAGE_PROTOCOL       *mSmmCoreLoadedImage;\r
 \r
 /**\r
@@ -256,7 +258,7 @@ SmmReadyToBootHandler (
   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
@@ -430,6 +432,8 @@ SmmEntryPoint (
   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
@@ -461,17 +465,19 @@ SmmEntryPoint (
     // 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
@@ -480,19 +486,19 @@ SmmEntryPoint (
         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
@@ -564,6 +570,42 @@ SmmCoreInstallLoadedImage (
                   );\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
@@ -636,5 +678,9 @@ SmmMain (
 \r
   SmmCoreInstallLoadedImage ();\r
 \r
+  SmmCoreInitializeMemoryAttributesTable ();\r
+\r
+  SmmCoreInitializeSmiHandlerProfile ();\r
+\r
   return EFI_SUCCESS;\r
 }\r