Esempi in C++ (Cpp) per TpmCommStartup

Esempio n. 1

File: TcgPei.c Progetto: AshleyDeSimone/edk2

/**
  Entry point of this module.

  @param[in] FileHandle   Handle of the file being invoked.
  @param[in] PeiServices  Describes the list of possible PEI Services.

  @return Status.

**/
EFI_STATUS
EFIAPI
PeimEntryMA (
  IN       EFI_PEI_FILE_HANDLE      FileHandle,
  IN CONST EFI_PEI_SERVICES         **PeiServices
  )
{
  EFI_STATUS                        Status;
  EFI_BOOT_MODE                     BootMode;
  TIS_TPM_HANDLE                    TpmHandle;

  if (PcdGetBool (PcdHideTpmSupport) && PcdGetBool (PcdHideTpm)) {
    return EFI_UNSUPPORTED;
  }

  Status = (**PeiServices).RegisterForShadow(FileHandle);
  if (Status == EFI_ALREADY_STARTED) {
    mImageInMemory = TRUE;
  } else if (Status == EFI_NOT_FOUND) {
    ASSERT_EFI_ERROR (Status);
  }

  if (!mImageInMemory) {
    //
    // Initialize TPM device
    //
    Status = PeiServicesGetBootMode (&BootMode);
    ASSERT_EFI_ERROR (Status);

    TpmHandle = (TIS_TPM_HANDLE)(UINTN)TPM_BASE_ADDRESS;
    Status = TisPcRequestUseTpm ((TIS_PC_REGISTERS_PTR)TpmHandle);
    if (EFI_ERROR (Status)) {
      DEBUG ((DEBUG_ERROR, "TPM not detected!\n"));
      return Status;
    }

    Status = TpmCommStartup ((EFI_PEI_SERVICES**)PeiServices, TpmHandle, BootMode);
    if (EFI_ERROR (Status) ) {
      return Status;
    }
    Status = TpmCommContinueSelfTest ((EFI_PEI_SERVICES**)PeiServices, TpmHandle);
    if (EFI_ERROR (Status)) {
      return Status;
    }
    Status = PeiServicesInstallPpi (&mTpmInitializedPpiList);
    ASSERT_EFI_ERROR (Status);
  }

  if (mImageInMemory) {
    Status = PeimEntryMP ((EFI_PEI_SERVICES**)PeiServices);
    if (EFI_ERROR (Status)) {
      return Status;
    }
  }

  return Status;
}

Esempio n. 2

File: TcgPei.c Progetto: JohnTroony/vector-edk

/**
  Entry point of this module.

  @param[in] FileHandle   Handle of the file being invoked.
  @param[in] PeiServices  Describes the list of possible PEI Services.

  @return Status.

**/
EFI_STATUS
EFIAPI
PeimEntryMA (
    IN       EFI_PEI_FILE_HANDLE      FileHandle,
    IN CONST EFI_PEI_SERVICES         **PeiServices
)
{
    EFI_STATUS                        Status;
    EFI_BOOT_MODE                     BootMode;
    TIS_TPM_HANDLE                    TpmHandle;

    if (!CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &gEfiTpmDeviceInstanceTpm12Guid)) {
        DEBUG ((EFI_D_ERROR, "No TPM12 instance required!\n"));
        return EFI_UNSUPPORTED;
    }

    if (PcdGetBool (PcdHideTpmSupport) && PcdGetBool (PcdHideTpm)) {
        return EFI_UNSUPPORTED;
    }

    //
    // Initialize TPM device
    //
    Status = PeiServicesGetBootMode (&BootMode);
    ASSERT_EFI_ERROR (Status);

    //
    // In S3 path, skip shadow logic. no measurement is required
    //
    if (BootMode != BOOT_ON_S3_RESUME) {
        Status = (**PeiServices).RegisterForShadow(FileHandle);
        if (Status == EFI_ALREADY_STARTED) {
            mImageInMemory = TRUE;
        } else if (Status == EFI_NOT_FOUND) {
            ASSERT_EFI_ERROR (Status);
        }
    }

    if (!mImageInMemory) {
        TpmHandle = (TIS_TPM_HANDLE)(UINTN)TPM_BASE_ADDRESS;
        Status = TisPcRequestUseTpm ((TIS_PC_REGISTERS_PTR)TpmHandle);
        if (EFI_ERROR (Status)) {
            DEBUG ((DEBUG_ERROR, "TPM not detected!\n"));
            return Status;
        }

        if (PcdGet8 (PcdTpmInitializationPolicy) == 1) {
            Status = TpmCommStartup ((EFI_PEI_SERVICES**)PeiServices, TpmHandle, BootMode);
            if (EFI_ERROR (Status) ) {
                return Status;
            }
        }

        //
        // TpmSelfTest is optional on S3 path, skip it to save S3 time
        //
        if (BootMode != BOOT_ON_S3_RESUME) {
            Status = TpmCommContinueSelfTest ((EFI_PEI_SERVICES**)PeiServices, TpmHandle);
            if (EFI_ERROR (Status)) {
                return Status;
            }
        }

        Status = PeiServicesInstallPpi (&mTpmInitializedPpiList);
        ASSERT_EFI_ERROR (Status);
    }

    if (mImageInMemory) {
        Status = PeimEntryMP ((EFI_PEI_SERVICES**)PeiServices);
        if (EFI_ERROR (Status)) {
            return Status;
        }
    }

    return Status;
}