From c1d932429ef9700a2da64452546be14e92468b07 Mon Sep 17 00:00:00 2001
From: jyao1 <jyao1>
Date: Wed, 18 Sep 2013 05:31:18 +0000
Subject: Add TPM2 implementation.

signed off by: jiewen.yao@intel.com
reviewed by: guo.dong@intel.com

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14687 6f19259b-4bc3-4df7-8a09-765794883524
---
 SecurityPkg/Tcg/TrEEConfig/TrEEConfigDriver.c | 171 ++++++++++++++++++++++++++
 1 file changed, 171 insertions(+)
 create mode 100644 SecurityPkg/Tcg/TrEEConfig/TrEEConfigDriver.c

(limited to 'SecurityPkg/Tcg/TrEEConfig/TrEEConfigDriver.c')

diff --git a/SecurityPkg/Tcg/TrEEConfig/TrEEConfigDriver.c b/SecurityPkg/Tcg/TrEEConfig/TrEEConfigDriver.c
new file mode 100644
index 0000000000..f3c8e5f659
--- /dev/null
+++ b/SecurityPkg/Tcg/TrEEConfig/TrEEConfigDriver.c
@@ -0,0 +1,171 @@
+/** @file
+  The module entry point for TrEE configuration module.
+
+Copyright (c) 2013, 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 "TrEEConfigImpl.h"
+
+extern TPM_INSTANCE_ID  mTpmInstanceId[TPM_DEVICE_MAX + 1];
+
+/**
+  The entry point for TrEE configuration driver.
+
+  @param[in]  ImageHandle        The image handle of the driver.
+  @param[in]  SystemTable        The system table.
+
+  @retval EFI_ALREADY_STARTED    The driver already exists in system.
+  @retval EFI_OUT_OF_RESOURCES   Fail to execute entry point due to lack of resources.
+  @retval EFI_SUCCES             All the related protocols are installed on the driver.
+  @retval Others                 Fail to install protocols as indicated.
+
+**/
+EFI_STATUS
+EFIAPI
+TrEEConfigDriverEntryPoint (
+  IN EFI_HANDLE          ImageHandle,
+  IN EFI_SYSTEM_TABLE    *SystemTable
+  )
+{
+  EFI_STATUS                    Status;
+  TREE_CONFIG_PRIVATE_DATA      *PrivateData;
+  TREE_CONFIGURATION            TrEEConfiguration;
+  UINTN                         Index;
+  UINTN                         DataSize;
+
+  Status = gBS->OpenProtocol (
+                  ImageHandle,
+                  &gEfiCallerIdGuid,
+                  NULL,
+                  ImageHandle,
+                  ImageHandle,
+                  EFI_OPEN_PROTOCOL_TEST_PROTOCOL
+                  );
+  if (!EFI_ERROR (Status)) {
+    return EFI_ALREADY_STARTED;
+  }
+  
+  //
+  // Create a private data structure.
+  //
+  PrivateData = AllocateCopyPool (sizeof (TREE_CONFIG_PRIVATE_DATA), &mTrEEConfigPrivateDateTemplate);
+  ASSERT (PrivateData != NULL);
+
+  //
+  // Install private GUID.
+  //    
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                  &ImageHandle,
+                  &gEfiCallerIdGuid,
+                  PrivateData,
+                  NULL
+                  );
+  ASSERT_EFI_ERROR (Status);
+
+  DataSize = sizeof(TrEEConfiguration);
+  Status = gRT->GetVariable (
+                  TREE_STORAGE_NAME,
+                  &gTrEEConfigFormSetGuid,
+                  NULL,
+                  &DataSize,
+                  &TrEEConfiguration
+                  );
+  if (EFI_ERROR (Status)) {
+  }
+  //
+  // We should always reinit PP request.
+  //
+  TrEEConfiguration.Tpm2Operation = TREE_PHYSICAL_PRESENCE_NO_ACTION;
+
+  //
+  // Sync data from PCD to variable, so that we do not need detect again in S3 phase.
+  //
+
+  //
+  // Get data from PCD to make sure data consistant - platform driver is suppose to construct this PCD accroding to Variable
+  //
+  for (Index = 0; Index < sizeof(mTpmInstanceId)/sizeof(mTpmInstanceId[0]); Index++) {
+    if (CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &mTpmInstanceId[Index].TpmInstanceGuid)) {
+      TrEEConfiguration.TpmDevice = mTpmInstanceId[Index].TpmDevice;
+      break;
+    }
+  }
+
+  //
+  // Save to variable so platform driver can get it.
+  //
+  Status = gRT->SetVariable (
+                  TREE_STORAGE_NAME,
+                  &gTrEEConfigFormSetGuid,
+                  EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
+                  sizeof(TrEEConfiguration),
+                  &TrEEConfiguration
+                  );
+  ASSERT_EFI_ERROR (Status);
+  
+  //
+  // Install TrEE configuration form
+  //
+  Status = InstallTrEEConfigForm (PrivateData);
+  if (EFI_ERROR (Status)) {
+    goto ErrorExit;
+  }
+
+  return EFI_SUCCESS;
+
+ErrorExit:
+  if (PrivateData != NULL) {
+    UninstallTrEEConfigForm (PrivateData);
+  }  
+  
+  return Status;
+}
+
+/**
+  Unload the TrEE configuration form.
+
+  @param[in]  ImageHandle         The driver's image handle.
+
+  @retval     EFI_SUCCESS         The TrEE configuration form is unloaded.
+  @retval     Others              Failed to unload the form.
+
+**/
+EFI_STATUS
+EFIAPI
+TrEEConfigDriverUnload (
+  IN EFI_HANDLE  ImageHandle
+  )
+{
+  EFI_STATUS                  Status;
+  TREE_CONFIG_PRIVATE_DATA    *PrivateData;
+
+  Status = gBS->HandleProtocol (
+                  ImageHandle,
+                  &gEfiCallerIdGuid,
+                  (VOID **) &PrivateData
+                  );  
+  if (EFI_ERROR (Status)) {
+    return Status;  
+  }
+  
+  ASSERT (PrivateData->Signature == TREE_CONFIG_PRIVATE_DATA_SIGNATURE);
+
+  gBS->UninstallMultipleProtocolInterfaces (
+         &ImageHandle,
+         &gEfiCallerIdGuid,
+         PrivateData,
+         NULL
+         );
+  
+  UninstallTrEEConfigForm (PrivateData);
+
+  return EFI_SUCCESS;
+}
-- 
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