Add TPM2 support defined in trusted computing group.
TCG EFI Protocol Specification for TPM Family 2.0 Revision 1.0 Version 9 at http://www.trustedcomputinggroup.org/resources/tcg_efi_protocol_specification TCG Physical Presence Interface Specification Version 1.30, Revision 00.52 at http://www.trustedcomputinggroup.org/resources/tcg_physical_presence_interface_specification Add Tcg2XXX, similar file/directory as TrEEXXX. Old TrEE driver/library can be deprecated. 1) Add Tcg2Pei/Dxe/Smm driver to log event and provide services. 2) Add Dxe/Pei/SmmTcg2PhysicalPresenceLib to support TCG PP. 3) Update Tpm2 library to use TCG2 protocol instead of TrEE protocol. Test Win8/Win10 with SecureBoot enabled, PCR7 shows bound. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: "Yao, Jiewen" <Jiewen.Yao@intel.com> Reviewed-by: "Zhang, Chao B" <chao.b.zhang@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18219 6f19259b-4bc3-4df7-8a09-765794883524
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158
SecurityPkg/Tcg/Tcg2Config/Tcg2ConfigPeim.c
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158
SecurityPkg/Tcg/Tcg2Config/Tcg2ConfigPeim.c
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/** @file
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The module entry point for Tcg2 configuration module.
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Copyright (c) 2015, 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 <PiPei.h>
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#include <Guid/TpmInstance.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/DebugLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/PeiServicesLib.h>
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#include <Library/PcdLib.h>
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#include <Ppi/ReadOnlyVariable2.h>
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#include <Ppi/TpmInitialized.h>
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#include <Protocol/Tcg2Protocol.h>
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#include "Tcg2ConfigNvData.h"
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TPM_INSTANCE_ID mTpmInstanceId[] = TPM_INSTANCE_ID_LIST;
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CONST EFI_PEI_PPI_DESCRIPTOR gTpmSelectedPpi = {
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(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
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&gEfiTpmDeviceSelectedGuid,
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NULL
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};
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EFI_PEI_PPI_DESCRIPTOR mTpmInitializationDonePpiList = {
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EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
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&gPeiTpmInitializationDonePpiGuid,
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NULL
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};
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/**
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This routine check both SetupVariable and real TPM device, and return final TpmDevice configuration.
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@param SetupTpmDevice TpmDevice configuration in setup driver
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@return TpmDevice configuration
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**/
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UINT8
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DetectTpmDevice (
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IN UINT8 SetupTpmDevice
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);
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/**
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The entry point for Tcg2 configuration driver.
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@param FileHandle Handle of the file being invoked.
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@param PeiServices Describes the list of possible PEI Services.
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@retval EFI_SUCCES Convert variable to PCD successfully.
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@retval Others Fail to convert variable to PCD.
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**/
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EFI_STATUS
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EFIAPI
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Tcg2ConfigPeimEntryPoint (
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IN EFI_PEI_FILE_HANDLE FileHandle,
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IN CONST EFI_PEI_SERVICES **PeiServices
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)
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{
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UINTN Size;
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EFI_STATUS Status;
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EFI_STATUS Status2;
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EFI_PEI_READ_ONLY_VARIABLE2_PPI *VariablePpi;
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TCG2_CONFIGURATION Tcg2Configuration;
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UINTN Index;
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UINT8 TpmDevice;
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Status = PeiServicesLocatePpi (&gEfiPeiReadOnlyVariable2PpiGuid, 0, NULL, (VOID **) &VariablePpi);
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ASSERT_EFI_ERROR (Status);
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Size = sizeof(Tcg2Configuration);
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Status = VariablePpi->GetVariable (
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VariablePpi,
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TCG2_STORAGE_NAME,
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&gTcg2ConfigFormSetGuid,
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NULL,
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&Size,
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&Tcg2Configuration
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);
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if (EFI_ERROR (Status)) {
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//
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// Variable not ready, set default value
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//
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Tcg2Configuration.TpmDevice = TPM_DEVICE_DEFAULT;
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}
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//
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// Validation
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//
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if ((Tcg2Configuration.TpmDevice > TPM_DEVICE_MAX) || (Tcg2Configuration.TpmDevice < TPM_DEVICE_MIN)) {
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Tcg2Configuration.TpmDevice = TPM_DEVICE_DEFAULT;
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}
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//
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// Although we have SetupVariable info, we still need detect TPM device manually.
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//
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DEBUG ((EFI_D_INFO, "Tcg2Configuration.TpmDevice from Setup: %x\n", Tcg2Configuration.TpmDevice));
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if (PcdGetBool (PcdTpmAutoDetection)) {
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TpmDevice = DetectTpmDevice (Tcg2Configuration.TpmDevice);
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DEBUG ((EFI_D_INFO, "TpmDevice final: %x\n", TpmDevice));
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if (TpmDevice != TPM_DEVICE_NULL) {
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Tcg2Configuration.TpmDevice = TpmDevice;
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}
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} else {
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TpmDevice = Tcg2Configuration.TpmDevice;
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}
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//
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// Convert variable to PCD.
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// This is work-around because there is no gurantee DynamicHiiPcd can return correct value in DXE phase.
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// Using DynamicPcd instead.
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//
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// NOTE: Tcg2Configuration variable contains the desired TpmDevice type,
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// while PcdTpmInstanceGuid PCD contains the real detected TpmDevice type
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//
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for (Index = 0; Index < sizeof(mTpmInstanceId)/sizeof(mTpmInstanceId[0]); Index++) {
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if (TpmDevice == mTpmInstanceId[Index].TpmDevice) {
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Size = sizeof(mTpmInstanceId[Index].TpmInstanceGuid);
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PcdSetPtr (PcdTpmInstanceGuid, &Size, &mTpmInstanceId[Index].TpmInstanceGuid);
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DEBUG ((EFI_D_INFO, "TpmDevice PCD: %g\n", &mTpmInstanceId[Index].TpmInstanceGuid));
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break;
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}
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}
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//
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// Selection done
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//
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Status = PeiServicesInstallPpi (&gTpmSelectedPpi);
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ASSERT_EFI_ERROR (Status);
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//
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// Even if no TPM is selected or detected, we still need intall TpmInitializationDonePpi.
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// Because TcgPei or Tcg2Pei will not run, but we still need a way to notify other driver.
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// Other driver can know TPM initialization state by TpmInitializedPpi.
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//
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if (CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &gEfiTpmDeviceInstanceNoneGuid)) {
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Status2 = PeiServicesInstallPpi (&mTpmInitializationDonePpiList);
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ASSERT_EFI_ERROR (Status2);
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}
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return Status;
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}
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