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
This commit is contained in:
171
SecurityPkg/Tcg/TrEEConfig/TrEEConfigDriver.c
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171
SecurityPkg/Tcg/TrEEConfig/TrEEConfigDriver.c
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/** @file
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The module entry point for TrEE configuration module.
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Copyright (c) 2013, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "TrEEConfigImpl.h"
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extern TPM_INSTANCE_ID mTpmInstanceId[TPM_DEVICE_MAX + 1];
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/**
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The entry point for TrEE configuration driver.
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@param[in] ImageHandle The image handle of the driver.
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@param[in] SystemTable The system table.
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@retval EFI_ALREADY_STARTED The driver already exists in system.
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@retval EFI_OUT_OF_RESOURCES Fail to execute entry point due to lack of resources.
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@retval EFI_SUCCES All the related protocols are installed on the driver.
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@retval Others Fail to install protocols as indicated.
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**/
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EFI_STATUS
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EFIAPI
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TrEEConfigDriverEntryPoint (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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TREE_CONFIG_PRIVATE_DATA *PrivateData;
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TREE_CONFIGURATION TrEEConfiguration;
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UINTN Index;
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UINTN DataSize;
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Status = gBS->OpenProtocol (
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ImageHandle,
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&gEfiCallerIdGuid,
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NULL,
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ImageHandle,
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ImageHandle,
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EFI_OPEN_PROTOCOL_TEST_PROTOCOL
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);
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if (!EFI_ERROR (Status)) {
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return EFI_ALREADY_STARTED;
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}
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//
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// Create a private data structure.
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//
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PrivateData = AllocateCopyPool (sizeof (TREE_CONFIG_PRIVATE_DATA), &mTrEEConfigPrivateDateTemplate);
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ASSERT (PrivateData != NULL);
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//
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// Install private GUID.
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//
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Status = gBS->InstallMultipleProtocolInterfaces (
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&ImageHandle,
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&gEfiCallerIdGuid,
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PrivateData,
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NULL
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);
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ASSERT_EFI_ERROR (Status);
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DataSize = sizeof(TrEEConfiguration);
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Status = gRT->GetVariable (
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TREE_STORAGE_NAME,
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&gTrEEConfigFormSetGuid,
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NULL,
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&DataSize,
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&TrEEConfiguration
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);
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if (EFI_ERROR (Status)) {
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}
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//
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// We should always reinit PP request.
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//
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TrEEConfiguration.Tpm2Operation = TREE_PHYSICAL_PRESENCE_NO_ACTION;
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//
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// Sync data from PCD to variable, so that we do not need detect again in S3 phase.
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//
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//
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// Get data from PCD to make sure data consistant - platform driver is suppose to construct this PCD accroding to Variable
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//
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for (Index = 0; Index < sizeof(mTpmInstanceId)/sizeof(mTpmInstanceId[0]); Index++) {
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if (CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &mTpmInstanceId[Index].TpmInstanceGuid)) {
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TrEEConfiguration.TpmDevice = mTpmInstanceId[Index].TpmDevice;
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break;
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}
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}
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//
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// Save to variable so platform driver can get it.
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//
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Status = gRT->SetVariable (
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TREE_STORAGE_NAME,
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&gTrEEConfigFormSetGuid,
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EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
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sizeof(TrEEConfiguration),
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&TrEEConfiguration
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);
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ASSERT_EFI_ERROR (Status);
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//
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// Install TrEE configuration form
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//
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Status = InstallTrEEConfigForm (PrivateData);
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if (EFI_ERROR (Status)) {
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goto ErrorExit;
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}
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return EFI_SUCCESS;
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ErrorExit:
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if (PrivateData != NULL) {
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UninstallTrEEConfigForm (PrivateData);
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}
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return Status;
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}
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/**
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Unload the TrEE configuration form.
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@param[in] ImageHandle The driver's image handle.
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@retval EFI_SUCCESS The TrEE configuration form is unloaded.
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@retval Others Failed to unload the form.
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**/
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EFI_STATUS
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EFIAPI
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TrEEConfigDriverUnload (
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IN EFI_HANDLE ImageHandle
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)
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{
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EFI_STATUS Status;
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TREE_CONFIG_PRIVATE_DATA *PrivateData;
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Status = gBS->HandleProtocol (
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ImageHandle,
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&gEfiCallerIdGuid,
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(VOID **) &PrivateData
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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ASSERT (PrivateData->Signature == TREE_CONFIG_PRIVATE_DATA_SIGNATURE);
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gBS->UninstallMultipleProtocolInterfaces (
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&ImageHandle,
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&gEfiCallerIdGuid,
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PrivateData,
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NULL
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);
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UninstallTrEEConfigForm (PrivateData);
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return EFI_SUCCESS;
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}
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