[mirror_edk2.git] / SecurityPkg / Tcg / Tcg2Config / Tcg2ConfigImpl.c

/** @file\r
  HII Config Access protocol implementation of TCG2 configuration module.\r
  NOTE: This module is only for reference only, each platform should have its own setup page.\r
\r
Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>\r
(C) Copyright 2018 Hewlett Packard Enterprise Development LP<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "Tcg2ConfigImpl.h"\r
#include <Library/PcdLib.h>\r
#include <Library/Tpm2CommandLib.h>\r
#include <Library/Tpm2DeviceLib.h>\r
#include <Library/IoLib.h>\r
\r
#include <Guid/TpmInstance.h>\r
\r
#include <IndustryStandard/TpmPtp.h>\r
\r
#define EFI_TCG2_EVENT_LOG_FORMAT_ALL  (EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2 | EFI_TCG2_EVENT_LOG_FORMAT_TCG_2)\r
\r
TPM_INSTANCE_ID  mTpmInstanceId[TPM_DEVICE_MAX + 1] = TPM_INSTANCE_ID_LIST;\r
\r
TCG2_CONFIG_PRIVATE_DATA  *mTcg2ConfigPrivateDate;\r
TCG2_CONFIG_PRIVATE_DATA  mTcg2ConfigPrivateDateTemplate = {\r
  TCG2_CONFIG_PRIVATE_DATA_SIGNATURE,\r
  {\r
    Tcg2ExtractConfig,\r
    Tcg2RouteConfig,\r
    Tcg2Callback\r
  }\r
};\r
\r
HII_VENDOR_DEVICE_PATH  mTcg2HiiVendorDevicePath = {\r
  {\r
    {\r
      HARDWARE_DEVICE_PATH,\r
      HW_VENDOR_DP,\r
      {\r
        (UINT8)(sizeof (VENDOR_DEVICE_PATH)),\r
        (UINT8)((sizeof (VENDOR_DEVICE_PATH)) >> 8)\r
      }\r
    },\r
    TCG2_CONFIG_FORM_SET_GUID\r
  },\r
  {\r
    END_DEVICE_PATH_TYPE,\r
    END_ENTIRE_DEVICE_PATH_SUBTYPE,\r
    {\r
      (UINT8)(END_DEVICE_PATH_LENGTH),\r
      (UINT8)((END_DEVICE_PATH_LENGTH) >> 8)\r
    }\r
  }\r
};\r
\r
UINT8  mCurrentPpRequest;\r
\r
/**\r
  Return if PTP CRB is supported.\r
\r
  @param[in] Register                Pointer to PTP register.\r
\r
  @retval TRUE  PTP CRB is supported.\r
  @retval FALSE PTP CRB is unsupported.\r
**/\r
BOOLEAN\r
IsPtpCrbSupported (\r
  IN VOID  *Register\r
  )\r
{\r
  PTP_CRB_INTERFACE_IDENTIFIER  InterfaceId;\r
\r
  //\r
  // Check interface id\r
  //\r
  InterfaceId.Uint32 = MmioRead32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId);\r
\r
  if (((InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_CRB) ||\r
       (InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_FIFO)) &&\r
      (InterfaceId.Bits.CapCRB != 0))\r
  {\r
    return TRUE;\r
  }\r
\r
  return FALSE;\r
}\r
\r
/**\r
  Return if PTP FIFO is supported.\r
\r
  @param[in] Register                Pointer to PTP register.\r
\r
  @retval TRUE  PTP FIFO is supported.\r
  @retval FALSE PTP FIFO is unsupported.\r
**/\r
BOOLEAN\r
IsPtpFifoSupported (\r
  IN VOID  *Register\r
  )\r
{\r
  PTP_CRB_INTERFACE_IDENTIFIER  InterfaceId;\r
\r
  //\r
  // Check interface id\r
  //\r
  InterfaceId.Uint32 = MmioRead32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId);\r
\r
  if (((InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_CRB) ||\r
       (InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_FIFO)) &&\r
      (InterfaceId.Bits.CapFIFO != 0))\r
  {\r
    return TRUE;\r
  }\r
\r
  return FALSE;\r
}\r
\r
/**\r
  Set PTP interface type.\r
  Do not update PcdActiveTpmInterfaceType here because interface change only happens on next _TPM_INIT\r
\r
  @param[in] Register                Pointer to PTP register.\r
  @param[in] PtpInterface            PTP interface type.\r
\r
  @retval EFI_SUCCESS                PTP interface type is set.\r
  @retval EFI_INVALID_PARAMETER      PTP interface type is invalid.\r
  @retval EFI_UNSUPPORTED            PTP interface type is unsupported.\r
  @retval EFI_WRITE_PROTECTED        PTP interface is locked.\r
**/\r
EFI_STATUS\r
SetPtpInterface (\r
  IN VOID   *Register,\r
  IN UINT8  PtpInterface\r
  )\r
{\r
  TPM2_PTP_INTERFACE_TYPE       PtpInterfaceCurrent;\r
  PTP_CRB_INTERFACE_IDENTIFIER  InterfaceId;\r
\r
  PtpInterfaceCurrent = PcdGet8 (PcdActiveTpmInterfaceType);\r
  if ((PtpInterfaceCurrent != Tpm2PtpInterfaceFifo) &&\r
      (PtpInterfaceCurrent != Tpm2PtpInterfaceCrb))\r
  {\r
    return EFI_UNSUPPORTED;\r
  }\r
\r
  InterfaceId.Uint32 = MmioRead32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId);\r
  if (InterfaceId.Bits.IntfSelLock != 0) {\r
    return EFI_WRITE_PROTECTED;\r
  }\r
\r
  switch (PtpInterface) {\r
    case Tpm2PtpInterfaceFifo:\r
      if (InterfaceId.Bits.CapFIFO == 0) {\r
        return EFI_UNSUPPORTED;\r
      }\r
\r
      InterfaceId.Bits.InterfaceSelector = PTP_INTERFACE_IDENTIFIER_INTERFACE_SELECTOR_FIFO;\r
      MmioWrite32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId, InterfaceId.Uint32);\r
      return EFI_SUCCESS;\r
    case Tpm2PtpInterfaceCrb:\r
      if (InterfaceId.Bits.CapCRB == 0) {\r
        return EFI_UNSUPPORTED;\r
      }\r
\r
      InterfaceId.Bits.InterfaceSelector = PTP_INTERFACE_IDENTIFIER_INTERFACE_SELECTOR_CRB;\r
      MmioWrite32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId, InterfaceId.Uint32);\r
      return EFI_SUCCESS;\r
    default:\r
      return EFI_INVALID_PARAMETER;\r
  }\r
}\r
\r
/**\r
  This function allows a caller to extract the current configuration for one\r
  or more named elements from the target driver.\r
\r
  @param[in]   This              Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r
  @param[in]   Request           A null-terminated Unicode string in\r
                                 <ConfigRequest> format.\r
  @param[out]  Progress          On return, points to a character in the Request\r
                                 string. Points to the string's null terminator if\r
                                 request was successful. Points to the most recent\r
                                 '&' before the first failing name/value pair (or\r
                                 the beginning of the string if the failure is in\r
                                 the first name/value pair) if the request was not\r
                                 successful.\r
  @param[out]  Results           A null-terminated Unicode string in\r
                                 <ConfigAltResp> format which has all values filled\r
                                 in for the names in the Request string. String to\r
                                 be allocated by the called function.\r
\r
  @retval EFI_SUCCESS            The Results is filled with the requested values.\r
  @retval EFI_OUT_OF_RESOURCES   Not enough memory to store the results.\r
  @retval EFI_INVALID_PARAMETER  Request is illegal syntax, or unknown name.\r
  @retval EFI_NOT_FOUND          Routing data doesn't match any storage in this\r
                                 driver.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
Tcg2ExtractConfig (\r
  IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,\r
  IN CONST EFI_STRING                      Request,\r
  OUT EFI_STRING                           *Progress,\r
  OUT EFI_STRING                           *Results\r
  )\r
{\r
  if ((Progress == NULL) || (Results == NULL)) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  *Progress = Request;\r
  return EFI_NOT_FOUND;\r
}\r
\r
/**\r
  Save TPM request to variable space.\r
\r
  @param[in] PpRequest             Physical Presence request command.\r
\r
  @retval    EFI_SUCCESS           The operation is finished successfully.\r
  @retval    Others                Other errors as indicated.\r
\r
**/\r
EFI_STATUS\r
SaveTcg2PpRequest (\r
  IN UINT8  PpRequest\r
  )\r
{\r
  UINT32      ReturnCode;\r
  EFI_STATUS  Status;\r
\r
  ReturnCode = Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction (PpRequest, 0);\r
  if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_SUCCESS) {\r
    mCurrentPpRequest = PpRequest;\r
    Status            = EFI_SUCCESS;\r
  } else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_GENERAL_FAILURE) {\r
    Status = EFI_OUT_OF_RESOURCES;\r
  } else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_NOT_IMPLEMENTED) {\r
    Status = EFI_UNSUPPORTED;\r
  } else {\r
    Status = EFI_DEVICE_ERROR;\r
  }\r
\r
  return Status;\r
}\r
\r
/**\r
  Save TPM request to variable space.\r
\r
  @param[in] PpRequestParameter    Physical Presence request parameter.\r
\r
  @retval    EFI_SUCCESS           The operation is finished successfully.\r
  @retval    Others                Other errors as indicated.\r
\r
**/\r
EFI_STATUS\r
SaveTcg2PpRequestParameter (\r
  IN UINT32  PpRequestParameter\r
  )\r
{\r
  UINT32      ReturnCode;\r
  EFI_STATUS  Status;\r
\r
  ReturnCode = Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction (mCurrentPpRequest, PpRequestParameter);\r
  if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_SUCCESS) {\r
    Status = EFI_SUCCESS;\r
  } else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_GENERAL_FAILURE) {\r
    Status = EFI_OUT_OF_RESOURCES;\r
  } else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_NOT_IMPLEMENTED) {\r
    Status = EFI_UNSUPPORTED;\r
  } else {\r
    Status = EFI_DEVICE_ERROR;\r
  }\r
\r
  return Status;\r
}\r
\r
/**\r
  Save Tcg2 PCR Banks request request to variable space.\r
\r
  @param[in] PCRBankIndex     PCR Bank Index.\r
  @param[in] Enable           Enable or disable this PCR Bank.\r
\r
  @retval    EFI_SUCCESS           The operation is finished successfully.\r
  @retval    Others                Other errors as indicated.\r
\r
**/\r
EFI_STATUS\r
SaveTcg2PCRBanksRequest (\r
  IN UINTN    PCRBankIndex,\r
  IN BOOLEAN  Enable\r
  )\r
{\r
  UINT32      ReturnCode;\r
  EFI_STATUS  Status;\r
\r
  if (Enable) {\r
    mTcg2ConfigPrivateDate->PCRBanksDesired |= (0x1 << PCRBankIndex);\r
  } else {\r
    mTcg2ConfigPrivateDate->PCRBanksDesired &= ~(0x1 << PCRBankIndex);\r
  }\r
\r
  ReturnCode = Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction (TCG2_PHYSICAL_PRESENCE_SET_PCR_BANKS, mTcg2ConfigPrivateDate->PCRBanksDesired);\r
  if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_SUCCESS) {\r
    Status = EFI_SUCCESS;\r
  } else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_GENERAL_FAILURE) {\r
    Status = EFI_OUT_OF_RESOURCES;\r
  } else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_NOT_IMPLEMENTED) {\r
    Status = EFI_UNSUPPORTED;\r
  } else {\r
    Status = EFI_DEVICE_ERROR;\r
  }\r
\r
  return Status;\r
}\r
\r
/**\r
  This function processes the results of changes in configuration.\r
\r
  @param[in]  This               Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r
  @param[in]  Configuration      A null-terminated Unicode string in <ConfigResp>\r
                                 format.\r
  @param[out] Progress           A pointer to a string filled in with the offset of\r
                                 the most recent '&' before the first failing\r
                                 name/value pair (or the beginning of the string if\r
                                 the failure is in the first name/value pair) or\r
                                 the terminating NULL if all was successful.\r
\r
  @retval EFI_SUCCESS            The Results is processed successfully.\r
  @retval EFI_INVALID_PARAMETER  Configuration is NULL.\r
  @retval EFI_NOT_FOUND          Routing data doesn't match any storage in this\r
                                 driver.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
Tcg2RouteConfig (\r
  IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,\r
  IN CONST EFI_STRING                      Configuration,\r
  OUT EFI_STRING                           *Progress\r
  )\r
{\r
  if ((Configuration == NULL) || (Progress == NULL)) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  *Progress = Configuration;\r
\r
  return EFI_NOT_FOUND;\r
}\r
\r
/**\r
  Get HID string of TPM2 ACPI device object\r
\r
  @param[in]  Hid               Points to HID String Buffer.\r
  @param[in]  Size              HID String size in bytes. Must >= TPM_HID_ACPI_SIZE\r
\r
  @return                       HID String get status.\r
\r
**/\r
EFI_STATUS\r
GetTpm2HID (\r
  CHAR8  *Hid,\r
  UINTN  Size\r
  )\r
{\r
  EFI_STATUS  Status;\r
  UINT32      ManufacturerID;\r
  UINT32      FirmwareVersion1;\r
  UINT32      FirmwareVersion2;\r
  BOOLEAN     PnpHID;\r
\r
  PnpHID = TRUE;\r
\r
  ZeroMem (Hid, Size);\r
\r
  //\r
  // Get Manufacturer ID\r
  //\r
  Status = Tpm2GetCapabilityManufactureID (&ManufacturerID);\r
  if (!EFI_ERROR (Status)) {\r
    DEBUG ((DEBUG_INFO, "TPM_PT_MANUFACTURER 0x%08x\n", ManufacturerID));\r
    //\r
    // ManufacturerID defined in TCG Vendor ID Registry\r
    // may tailed with 0x00 or 0x20\r
    //\r
    if (((ManufacturerID >> 24) == 0x00) || ((ManufacturerID >> 24) == 0x20)) {\r
      //\r
      //  HID containing PNP ID "NNN####"\r
      //   NNN is uppercase letter for Vendor ID specified by manufacturer\r
      //\r
      CopyMem (Hid, &ManufacturerID, 3);\r
    } else {\r
      //\r
      //  HID containing ACP ID "NNNN####"\r
      //   NNNN is uppercase letter for Vendor ID specified by manufacturer\r
      //\r
      CopyMem (Hid, &ManufacturerID, 4);\r
      PnpHID = FALSE;\r
    }\r
  } else {\r
    DEBUG ((DEBUG_ERROR, "Get TPM_PT_MANUFACTURER failed %x!\n", Status));\r
    ASSERT (FALSE);\r
    return Status;\r
  }\r
\r
  Status = Tpm2GetCapabilityFirmwareVersion (&FirmwareVersion1, &FirmwareVersion2);\r
  if (!EFI_ERROR (Status)) {\r
    DEBUG ((DEBUG_INFO, "TPM_PT_FIRMWARE_VERSION_1 0x%x\n", FirmwareVersion1));\r
    DEBUG ((DEBUG_INFO, "TPM_PT_FIRMWARE_VERSION_2 0x%x\n", FirmwareVersion2));\r
    //\r
    //   #### is Firmware Version 1\r
    //\r
    if (PnpHID) {\r
      AsciiSPrint (Hid + 3, TPM_HID_PNP_SIZE - 3, "%02d%02d", ((FirmwareVersion1 & 0xFFFF0000) >> 16), (FirmwareVersion1 & 0x0000FFFF));\r
    } else {\r
      AsciiSPrint (Hid + 4, TPM_HID_ACPI_SIZE - 4, "%02d%02d", ((FirmwareVersion1 & 0xFFFF0000) >> 16), (FirmwareVersion1 & 0x0000FFFF));\r
    }\r
  } else {\r
    DEBUG ((DEBUG_ERROR, "Get TPM_PT_FIRMWARE_VERSION_X failed %x!\n", Status));\r
    ASSERT (FALSE);\r
    return Status;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  This function processes the results of changes in configuration\r
  for TCG2 version information.\r
\r
  @param[in] Action             Specifies the type of action taken by the browser.\r
                                ASSERT if the Action is not EFI_BROWSER_ACTION_SUBMITTED.\r
  @param[in] QuestionId         A unique value which is sent to the original\r
                                exporting driver so that it can identify the type\r
                                of data to expect.\r
  @param[in] Type               The type of value for the question.\r
  @param[in] Value              A pointer to the data being sent to the original\r
                                exporting driver.\r
\r
  @retval EFI_SUCCESS           The callback successfully handled the action.\r
\r
**/\r
EFI_STATUS\r
Tcg2VersionInfoCallback (\r
  IN EFI_BROWSER_ACTION  Action,\r
  IN EFI_QUESTION_ID     QuestionId,\r
  IN UINT8               Type,\r
  IN EFI_IFR_TYPE_VALUE  *Value\r
  )\r
{\r
  EFI_INPUT_KEY  Key;\r
  UINT64         PcdTcg2PpiVersion;\r
  UINT8          PcdTpm2AcpiTableRev;\r
\r
  ASSERT (Action == EFI_BROWSER_ACTION_SUBMITTED);\r
\r
  if (QuestionId == KEY_TCG2_PPI_VERSION) {\r
    //\r
    // Get the PCD value after EFI_BROWSER_ACTION_SUBMITTED,\r
    // the SetVariable to TCG2_VERSION_NAME should have been done.\r
    // If the PCD value is not equal to the value set to variable,\r
    // the PCD is not DynamicHii type and does not map to the setup option.\r
    //\r
    PcdTcg2PpiVersion = 0;\r
    CopyMem (\r
      &PcdTcg2PpiVersion,\r
      PcdGetPtr (PcdTcgPhysicalPresenceInterfaceVer),\r
      AsciiStrSize ((CHAR8 *)PcdGetPtr (PcdTcgPhysicalPresenceInterfaceVer))\r
      );\r
    if (PcdTcg2PpiVersion != Value->u64) {\r
      CreatePopUp (\r
        EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r
        &Key,\r
        L"WARNING: PcdTcgPhysicalPresenceInterfaceVer is not DynamicHii type and does not map to this option!",\r
        L"The version configuring by this setup option will not work!",\r
        NULL\r
        );\r
    }\r
  } else if (QuestionId == KEY_TPM2_ACPI_REVISION) {\r
    //\r
    // Get the PCD value after EFI_BROWSER_ACTION_SUBMITTED,\r
    // the SetVariable to TCG2_VERSION_NAME should have been done.\r
    // If the PCD value is not equal to the value set to variable,\r
    // the PCD is not DynamicHii type and does not map to the setup option.\r
    //\r
    PcdTpm2AcpiTableRev = PcdGet8 (PcdTpm2AcpiTableRev);\r
\r
    if (PcdTpm2AcpiTableRev != Value->u8) {\r
      CreatePopUp (\r
        EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r
        &Key,\r
        L"WARNING: PcdTpm2AcpiTableRev is not DynamicHii type and does not map to this option!",\r
        L"The Revision configuring by this setup option will not work!",\r
        NULL\r
        );\r
    }\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  This function processes the results of changes in configuration.\r
\r
  @param[in]  This               Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r
  @param[in]  Action             Specifies the type of action taken by the browser.\r
  @param[in]  QuestionId         A unique value which is sent to the original\r
                                 exporting driver so that it can identify the type\r
                                 of data to expect.\r
  @param[in]  Type               The type of value for the question.\r
  @param[in]  Value              A pointer to the data being sent to the original\r
                                 exporting driver.\r
  @param[out] ActionRequest      On return, points to the action requested by the\r
                                 callback function.\r
\r
  @retval EFI_SUCCESS            The callback successfully handled the action.\r
  @retval EFI_OUT_OF_RESOURCES   Not enough storage is available to hold the\r
                                 variable and its data.\r
  @retval EFI_DEVICE_ERROR       The variable could not be saved.\r
  @retval EFI_UNSUPPORTED        The specified Action is not supported by the\r
                                 callback.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
Tcg2Callback (\r
  IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,\r
  IN     EFI_BROWSER_ACTION                Action,\r
  IN     EFI_QUESTION_ID                   QuestionId,\r
  IN     UINT8                             Type,\r
  IN     EFI_IFR_TYPE_VALUE                *Value,\r
  OUT EFI_BROWSER_ACTION_REQUEST           *ActionRequest\r
  )\r
{\r
  EFI_STATUS                Status;\r
  EFI_INPUT_KEY             Key;\r
  CHAR8                     HidStr[16];\r
  CHAR16                    UnHidStr[16];\r
  TCG2_CONFIG_PRIVATE_DATA  *Private;\r
\r
  if ((This == NULL) || (Value == NULL) || (ActionRequest == NULL)) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  Private = TCG2_CONFIG_PRIVATE_DATA_FROM_THIS (This);\r
\r
  if (Action == EFI_BROWSER_ACTION_FORM_OPEN) {\r
    //\r
    // Update TPM2 HID info\r
    //\r
    if (QuestionId == KEY_TPM_DEVICE) {\r
      Status = GetTpm2HID (HidStr, 16);\r
\r
      if (EFI_ERROR (Status)) {\r
        //\r
        //  Fail to get TPM2 HID\r
        //\r
        HiiSetString (Private->HiiHandle, STRING_TOKEN (STR_TPM2_ACPI_HID_CONTENT), L"Unknown", NULL);\r
      } else {\r
        AsciiStrToUnicodeStrS (HidStr, UnHidStr, 16);\r
        HiiSetString (Private->HiiHandle, STRING_TOKEN (STR_TPM2_ACPI_HID_CONTENT), UnHidStr, NULL);\r
      }\r
    }\r
\r
    return EFI_SUCCESS;\r
  }\r
\r
  if (Action == EFI_BROWSER_ACTION_CHANGING) {\r
    if (QuestionId == KEY_TPM_DEVICE_INTERFACE) {\r
      Status = SetPtpInterface ((VOID *)(UINTN)PcdGet64 (PcdTpmBaseAddress), Value->u8);\r
      if (EFI_ERROR (Status)) {\r
        CreatePopUp (\r
          EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r
          &Key,\r
          L"Error: Fail to set PTP interface!",\r
          NULL\r
          );\r
        return EFI_DEVICE_ERROR;\r
      }\r
    }\r
  }\r
\r
  if (Action == EFI_BROWSER_ACTION_CHANGED) {\r
    if (QuestionId == KEY_TPM_DEVICE) {\r
      return EFI_SUCCESS;\r
    }\r
\r
    if (QuestionId == KEY_TPM2_OPERATION) {\r
      return SaveTcg2PpRequest (Value->u8);\r
    }\r
\r
    if (QuestionId == KEY_TPM2_OPERATION_PARAMETER) {\r
      return SaveTcg2PpRequestParameter (Value->u32);\r
    }\r
\r
    if ((QuestionId >= KEY_TPM2_PCR_BANKS_REQUEST_0) && (QuestionId <= KEY_TPM2_PCR_BANKS_REQUEST_4)) {\r
      return SaveTcg2PCRBanksRequest (QuestionId - KEY_TPM2_PCR_BANKS_REQUEST_0, Value->b);\r
    }\r
  }\r
\r
  if (Action == EFI_BROWSER_ACTION_SUBMITTED) {\r
    if ((QuestionId == KEY_TCG2_PPI_VERSION) || (QuestionId == KEY_TPM2_ACPI_REVISION)) {\r
      return Tcg2VersionInfoCallback (Action, QuestionId, Type, Value);\r
    }\r
  }\r
\r
  return EFI_UNSUPPORTED;\r
}\r
\r
/**\r
  Append Buffer With TpmAlgHash.\r
\r
  @param[in] Buffer               Buffer to be appended.\r
  @param[in] BufferSize           Size of buffer.\r
  @param[in] TpmAlgHash           TpmAlgHash.\r
\r
**/\r
VOID\r
AppendBufferWithTpmAlgHash (\r
  IN UINT16  *Buffer,\r
  IN UINTN   BufferSize,\r
  IN UINT32  TpmAlgHash\r
  )\r
{\r
  switch (TpmAlgHash) {\r
    case TPM_ALG_SHA1:\r
      if (Buffer[0] != 0) {\r
        StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r
      }\r
\r
      StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA1");\r
      break;\r
    case TPM_ALG_SHA256:\r
      if (Buffer[0] != 0) {\r
        StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r
      }\r
\r
      StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA256");\r
      break;\r
    case TPM_ALG_SHA384:\r
      if (Buffer[0] != 0) {\r
        StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r
      }\r
\r
      StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA384");\r
      break;\r
    case TPM_ALG_SHA512:\r
      if (Buffer[0] != 0) {\r
        StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r
      }\r
\r
      StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA512");\r
      break;\r
    case TPM_ALG_SM3_256:\r
      if (Buffer[0] != 0) {\r
        StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r
      }\r
\r
      StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SM3_256");\r
      break;\r
  }\r
}\r
\r
/**\r
  Fill Buffer With BootHashAlg.\r
\r
  @param[in] Buffer               Buffer to be filled.\r
  @param[in] BufferSize           Size of buffer.\r
  @param[in] BootHashAlg          BootHashAlg.\r
\r
**/\r
VOID\r
FillBufferWithBootHashAlg (\r
  IN UINT16  *Buffer,\r
  IN UINTN   BufferSize,\r
  IN UINT32  BootHashAlg\r
  )\r
{\r
  Buffer[0] = 0;\r
  if ((BootHashAlg & EFI_TCG2_BOOT_HASH_ALG_SHA1) != 0) {\r
    if (Buffer[0] != 0) {\r
      StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r
    }\r
\r
    StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA1");\r
  }\r
\r
  if ((BootHashAlg & EFI_TCG2_BOOT_HASH_ALG_SHA256) != 0) {\r
    if (Buffer[0] != 0) {\r
      StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r
    }\r
\r
    StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA256");\r
  }\r
\r
  if ((BootHashAlg & EFI_TCG2_BOOT_HASH_ALG_SHA384) != 0) {\r
    if (Buffer[0] != 0) {\r
      StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r
    }\r
\r
    StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA384");\r
  }\r
\r
  if ((BootHashAlg & EFI_TCG2_BOOT_HASH_ALG_SHA512) != 0) {\r
    if (Buffer[0] != 0) {\r
      StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r
    }\r
\r
    StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA512");\r
  }\r
\r
  if ((BootHashAlg & EFI_TCG2_BOOT_HASH_ALG_SM3_256) != 0) {\r
    if (Buffer[0] != 0) {\r
      StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r
    }\r
\r
    StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SM3_256");\r
  }\r
}\r
\r
/**\r
  Set ConfigInfo according to TpmAlgHash.\r
\r
  @param[in,out] Tcg2ConfigInfo       TCG2 config info.\r
  @param[in]     TpmAlgHash           TpmAlgHash.\r
\r
**/\r
VOID\r
SetConfigInfo (\r
  IN OUT TCG2_CONFIGURATION_INFO  *Tcg2ConfigInfo,\r
  IN UINT32                       TpmAlgHash\r
  )\r
{\r
  switch (TpmAlgHash) {\r
    case TPM_ALG_SHA1:\r
      Tcg2ConfigInfo->Sha1Supported = TRUE;\r
      break;\r
    case TPM_ALG_SHA256:\r
      Tcg2ConfigInfo->Sha256Supported = TRUE;\r
      break;\r
    case TPM_ALG_SHA384:\r
      Tcg2ConfigInfo->Sha384Supported = TRUE;\r
      break;\r
    case TPM_ALG_SHA512:\r
      Tcg2ConfigInfo->Sha512Supported = TRUE;\r
      break;\r
    case TPM_ALG_SM3_256:\r
      Tcg2ConfigInfo->Sm3Supported = TRUE;\r
      break;\r
  }\r
}\r
\r
/**\r
  Fill Buffer With TCG2EventLogFormat.\r
\r
  @param[in] Buffer               Buffer to be filled.\r
  @param[in] BufferSize           Size of buffer.\r
  @param[in] TCG2EventLogFormat   TCG2EventLogFormat.\r
\r
**/\r
VOID\r
FillBufferWithTCG2EventLogFormat (\r
  IN UINT16  *Buffer,\r
  IN UINTN   BufferSize,\r
  IN UINT32  TCG2EventLogFormat\r
  )\r
{\r
  Buffer[0] = 0;\r
  if ((TCG2EventLogFormat & EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2) != 0) {\r
    if (Buffer[0] != 0) {\r
      StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r
    }\r
\r
    StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"TCG_1_2");\r
  }\r
\r
  if ((TCG2EventLogFormat & EFI_TCG2_EVENT_LOG_FORMAT_TCG_2) != 0) {\r
    if (Buffer[0] != 0) {\r
      StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r
    }\r
\r
    StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"TCG_2");\r
  }\r
\r
  if ((TCG2EventLogFormat & (~EFI_TCG2_EVENT_LOG_FORMAT_ALL)) != 0) {\r
    if (Buffer[0] != 0) {\r
      StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r
    }\r
\r
    StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"UNKNOWN");\r
  }\r
}\r
\r
/**\r
  This function publish the TCG2 configuration Form for TPM device.\r
\r
  @param[in, out]  PrivateData   Points to TCG2 configuration private data.\r
\r
  @retval EFI_SUCCESS            HII Form is installed for this network device.\r
  @retval EFI_OUT_OF_RESOURCES   Not enough resource for HII Form installation.\r
  @retval Others                 Other errors as indicated.\r
\r
**/\r
EFI_STATUS\r
InstallTcg2ConfigForm (\r
  IN OUT TCG2_CONFIG_PRIVATE_DATA  *PrivateData\r
  )\r
{\r
  EFI_STATUS                      Status;\r
  EFI_HII_HANDLE                  HiiHandle;\r
  EFI_HANDLE                      DriverHandle;\r
  EFI_HII_CONFIG_ACCESS_PROTOCOL  *ConfigAccess;\r
  UINTN                           Index;\r
  TPML_PCR_SELECTION              Pcrs;\r
  CHAR16                          TempBuffer[1024];\r
  TCG2_CONFIGURATION_INFO         Tcg2ConfigInfo;\r
  TPM2_PTP_INTERFACE_TYPE         TpmDeviceInterfaceDetected;\r
  BOOLEAN                         IsCmdImp = FALSE;\r
\r
  DriverHandle = NULL;\r
  ConfigAccess = &PrivateData->ConfigAccess;\r
  Status       = gBS->InstallMultipleProtocolInterfaces (\r
                        &DriverHandle,\r
                        &gEfiDevicePathProtocolGuid,\r
                        &mTcg2HiiVendorDevicePath,\r
                        &gEfiHiiConfigAccessProtocolGuid,\r
                        ConfigAccess,\r
                        NULL\r
                        );\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  PrivateData->DriverHandle = DriverHandle;\r
\r
  //\r
  // Publish the HII package list\r
  //\r
  HiiHandle = HiiAddPackages (\r
                &gTcg2ConfigFormSetGuid,\r
                DriverHandle,\r
                Tcg2ConfigDxeStrings,\r
                Tcg2ConfigBin,\r
                NULL\r
                );\r
  if (HiiHandle == NULL) {\r
    gBS->UninstallMultipleProtocolInterfaces (\r
           DriverHandle,\r
           &gEfiDevicePathProtocolGuid,\r
           &mTcg2HiiVendorDevicePath,\r
           &gEfiHiiConfigAccessProtocolGuid,\r
           ConfigAccess,\r
           NULL\r
           );\r
\r
    return EFI_OUT_OF_RESOURCES;\r
  }\r
\r
  PrivateData->HiiHandle = HiiHandle;\r
\r
  //\r
  // Update static data\r
  //\r
  switch (PrivateData->TpmDeviceDetected) {\r
    case TPM_DEVICE_NULL:\r
      HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_STATE_CONTENT), L"Not Found", NULL);\r
      break;\r
    case TPM_DEVICE_1_2:\r
      HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_STATE_CONTENT), L"TPM 1.2", NULL);\r
      break;\r
    case TPM_DEVICE_2_0_DTPM:\r
      HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_STATE_CONTENT), L"TPM 2.0", NULL);\r
      break;\r
    default:\r
      HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_STATE_CONTENT), L"Unknown", NULL);\r
      break;\r
  }\r
\r
  ZeroMem (&Tcg2ConfigInfo, sizeof (Tcg2ConfigInfo));\r
  Status = Tpm2GetCapabilityPcrs (&Pcrs);\r
  if (EFI_ERROR (Status)) {\r
    HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TPM2_ACTIVE_HASH_ALGO_CONTENT), L"[Unknown]", NULL);\r
    HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TPM2_SUPPORTED_HASH_ALGO_CONTENT), L"[Unknown]", NULL);\r
  } else {\r
    TempBuffer[0] = 0;\r
    for (Index = 0; Index < Pcrs.count; Index++) {\r
      if (!IsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {\r
        AppendBufferWithTpmAlgHash (TempBuffer, sizeof (TempBuffer), Pcrs.pcrSelections[Index].hash);\r
      }\r
    }\r
\r
    HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TPM2_ACTIVE_HASH_ALGO_CONTENT), TempBuffer, NULL);\r
\r
    TempBuffer[0] = 0;\r
    for (Index = 0; Index < Pcrs.count; Index++) {\r
      AppendBufferWithTpmAlgHash (TempBuffer, sizeof (TempBuffer), Pcrs.pcrSelections[Index].hash);\r
      SetConfigInfo (&Tcg2ConfigInfo, Pcrs.pcrSelections[Index].hash);\r
    }\r
\r
    HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TPM2_SUPPORTED_HASH_ALGO_CONTENT), TempBuffer, NULL);\r
  }\r
\r
  Status = Tpm2GetCapabilityIsCommandImplemented (TPM_CC_ChangeEPS, &IsCmdImp);\r
  if (EFI_ERROR (Status)) {\r
    DEBUG ((DEBUG_ERROR, "Tpm2GetCapabilityIsCmdImpl fails %r\n", Status));\r
  }\r
\r
  Tcg2ConfigInfo.ChangeEPSSupported = IsCmdImp;\r
\r
  FillBufferWithBootHashAlg (TempBuffer, sizeof (TempBuffer), PcdGet32 (PcdTcg2HashAlgorithmBitmap));\r
  HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_BIOS_HASH_ALGO_CONTENT), TempBuffer, NULL);\r
\r
  //\r
  // Tcg2 Capability\r
  //\r
  FillBufferWithTCG2EventLogFormat (TempBuffer, sizeof (TempBuffer), PrivateData->ProtocolCapability.SupportedEventLogs);\r
  HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_SUPPORTED_EVENT_LOG_FORMAT_CONTENT), TempBuffer, NULL);\r
\r
  FillBufferWithBootHashAlg (TempBuffer, sizeof (TempBuffer), PrivateData->ProtocolCapability.HashAlgorithmBitmap);\r
  HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_HASH_ALGO_BITMAP_CONTENT), TempBuffer, NULL);\r
\r
  UnicodeSPrint (TempBuffer, sizeof (TempBuffer), L"%d", PrivateData->ProtocolCapability.NumberOfPCRBanks);\r
  HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_NUMBER_OF_PCR_BANKS_CONTENT), TempBuffer, NULL);\r
\r
  FillBufferWithBootHashAlg (TempBuffer, sizeof (TempBuffer), PrivateData->ProtocolCapability.ActivePcrBanks);\r
  HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_ACTIVE_PCR_BANKS_CONTENT), TempBuffer, NULL);\r
\r
  //\r
  // Update TPM device interface type\r
  //\r
  if (PrivateData->TpmDeviceDetected == TPM_DEVICE_2_0_DTPM) {\r
    TpmDeviceInterfaceDetected = PcdGet8 (PcdActiveTpmInterfaceType);\r
    switch (TpmDeviceInterfaceDetected) {\r
      case Tpm2PtpInterfaceTis:\r
        HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_INTERFACE_STATE_CONTENT), L"TIS", NULL);\r
        break;\r
      case Tpm2PtpInterfaceFifo:\r
        HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_INTERFACE_STATE_CONTENT), L"PTP FIFO", NULL);\r
        break;\r
      case Tpm2PtpInterfaceCrb:\r
        HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_INTERFACE_STATE_CONTENT), L"PTP CRB", NULL);\r
        break;\r
      default:\r
        HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_INTERFACE_STATE_CONTENT), L"Unknown", NULL);\r
        break;\r
    }\r
\r
    Tcg2ConfigInfo.TpmDeviceInterfaceAttempt = TpmDeviceInterfaceDetected;\r
    switch (TpmDeviceInterfaceDetected) {\r
      case Tpm2PtpInterfaceTis:\r
        Tcg2ConfigInfo.TpmDeviceInterfacePtpFifoSupported = FALSE;\r
        Tcg2ConfigInfo.TpmDeviceInterfacePtpCrbSupported  = FALSE;\r
        HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_INTERFACE_CAPABILITY_CONTENT), L"TIS", NULL);\r
        break;\r
      case Tpm2PtpInterfaceFifo:\r
      case Tpm2PtpInterfaceCrb:\r
        Tcg2ConfigInfo.TpmDeviceInterfacePtpFifoSupported = IsPtpFifoSupported ((VOID *)(UINTN)PcdGet64 (PcdTpmBaseAddress));\r
        Tcg2ConfigInfo.TpmDeviceInterfacePtpCrbSupported  = IsPtpCrbSupported ((VOID *)(UINTN)PcdGet64 (PcdTpmBaseAddress));\r
        TempBuffer[0]                                     = 0;\r
        if (Tcg2ConfigInfo.TpmDeviceInterfacePtpFifoSupported) {\r
          if (TempBuffer[0] != 0) {\r
            StrCatS (TempBuffer, sizeof (TempBuffer) / sizeof (CHAR16), L", ");\r
          }\r
\r
          StrCatS (TempBuffer, sizeof (TempBuffer) / sizeof (CHAR16), L"PTP FIFO");\r
        }\r
\r
        if (Tcg2ConfigInfo.TpmDeviceInterfacePtpCrbSupported) {\r
          if (TempBuffer[0] != 0) {\r
            StrCatS (TempBuffer, sizeof (TempBuffer) / sizeof (CHAR16), L", ");\r
          }\r
\r
          StrCatS (TempBuffer, sizeof (TempBuffer) / sizeof (CHAR16), L"PTP CRB");\r
        }\r
\r
        HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_INTERFACE_CAPABILITY_CONTENT), TempBuffer, NULL);\r
        break;\r
      default:\r
        Tcg2ConfigInfo.TpmDeviceInterfacePtpFifoSupported = FALSE;\r
        Tcg2ConfigInfo.TpmDeviceInterfacePtpCrbSupported  = FALSE;\r
        HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_INTERFACE_CAPABILITY_CONTENT), L"Unknown", NULL);\r
        break;\r
    }\r
  }\r
\r
  //\r
  // Set ConfigInfo, to control the check box.\r
  //\r
  Status = gRT->SetVariable (\r
                  TCG2_STORAGE_INFO_NAME,\r
                  &gTcg2ConfigFormSetGuid,\r
                  EFI_VARIABLE_BOOTSERVICE_ACCESS,\r
                  sizeof (Tcg2ConfigInfo),\r
                  &Tcg2ConfigInfo\r
                  );\r
  if (EFI_ERROR (Status)) {\r
    DEBUG ((DEBUG_ERROR, "Tcg2ConfigDriver: Fail to set TCG2_STORAGE_INFO_NAME\n"));\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  This function removes TCG2 configuration Form.\r
\r
  @param[in, out]  PrivateData   Points to TCG2 configuration private data.\r
\r
**/\r
VOID\r
UninstallTcg2ConfigForm (\r
  IN OUT TCG2_CONFIG_PRIVATE_DATA  *PrivateData\r
  )\r
{\r
  //\r
  // Uninstall HII package list\r
  //\r
  if (PrivateData->HiiHandle != NULL) {\r
    HiiRemovePackages (PrivateData->HiiHandle);\r
    PrivateData->HiiHandle = NULL;\r
  }\r
\r
  //\r
  // Uninstall HII Config Access Protocol\r
  //\r
  if (PrivateData->DriverHandle != NULL) {\r
    gBS->UninstallMultipleProtocolInterfaces (\r
           PrivateData->DriverHandle,\r
           &gEfiDevicePathProtocolGuid,\r
           &mTcg2HiiVendorDevicePath,\r
           &gEfiHiiConfigAccessProtocolGuid,\r
           &PrivateData->ConfigAccess,\r
           NULL\r
           );\r
    PrivateData->DriverHandle = NULL;\r
  }\r
\r
  FreePool (PrivateData);\r
}\r