UefiCpuPkg: Move AsmRelocateApLoopStart from Mpfuncs.nasm to AmdSev.nasm

[mirror_edk2.git] / SecurityPkg / Tcg / TcgConfigDxe / TcgConfigDriver.c

/** @file\r
  The module entry point for Tcg configuration module.\r
\r
Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "TcgConfigImpl.h"\r
#include <Guid/TpmInstance.h>\r
\r
/**\r
  The entry point for Tcg configuration driver.\r
\r
  @param[in]  ImageHandle        The image handle of the driver.\r
  @param[in]  SystemTable        The system table.\r
\r
  @retval EFI_ALREADY_STARTED    The driver already exists in system.\r
  @retval EFI_OUT_OF_RESOURCES   Fail to execute entry point due to lack of resources.\r
  @retval EFI_SUCCESS            All the related protocols are installed on the driver.\r
  @retval Others                 Fail to install protocols as indicated.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
TcgConfigDriverEntryPoint (\r
  IN EFI_HANDLE        ImageHandle,\r
  IN EFI_SYSTEM_TABLE  *SystemTable\r
  )\r
{\r
  EFI_STATUS               Status;\r
  TCG_CONFIG_PRIVATE_DATA  *PrivateData;\r
  EFI_TCG_PROTOCOL         *TcgProtocol;\r
\r
  if (!CompareGuid (PcdGetPtr (PcdTpmInstanceGuid), &gEfiTpmDeviceInstanceTpm12Guid)) {\r
    DEBUG ((DEBUG_ERROR, "No TPM12 instance required!\n"));\r
    return EFI_UNSUPPORTED;\r
  }\r
\r
  Status = Tpm12RequestUseTpm ();\r
  if (EFI_ERROR (Status)) {\r
    DEBUG ((DEBUG_ERROR, "TPM not detected!\n"));\r
    return Status;\r
  }\r
\r
  Status = gBS->LocateProtocol (&gEfiTcgProtocolGuid, NULL, (VOID **)&TcgProtocol);\r
  if (EFI_ERROR (Status)) {\r
    TcgProtocol = NULL;\r
  }\r
\r
  Status = gBS->OpenProtocol (\r
                  ImageHandle,\r
                  &gEfiCallerIdGuid,\r
                  NULL,\r
                  ImageHandle,\r
                  ImageHandle,\r
                  EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r
                  );\r
  if (!EFI_ERROR (Status)) {\r
    return EFI_ALREADY_STARTED;\r
  }\r
\r
  //\r
  // Create a private data structure.\r
  //\r
  PrivateData = AllocateCopyPool (sizeof (TCG_CONFIG_PRIVATE_DATA), &mTcgConfigPrivateDateTemplate);\r
  if (PrivateData == NULL) {\r
    return EFI_OUT_OF_RESOURCES;\r
  }\r
\r
  PrivateData->Configuration = AllocatePool (sizeof (TCG_CONFIGURATION));\r
  if (PrivateData->Configuration == NULL) {\r
    Status = EFI_OUT_OF_RESOURCES;\r
    goto ErrorExit;\r
  }\r
\r
  PrivateData->TcgProtocol = TcgProtocol;\r
\r
  //\r
  // Install TCG configuration form\r
  //\r
  Status = InstallTcgConfigForm (PrivateData);\r
  if (EFI_ERROR (Status)) {\r
    goto ErrorExit;\r
  }\r
\r
  //\r
  // Install private GUID.\r
  //\r
  Status = gBS->InstallMultipleProtocolInterfaces (\r
                  &ImageHandle,\r
                  &gEfiCallerIdGuid,\r
                  PrivateData,\r
                  NULL\r
                  );\r
\r
  if (EFI_ERROR (Status)) {\r
    goto ErrorExit;\r
  }\r
\r
  return EFI_SUCCESS;\r
\r
ErrorExit:\r
  if (PrivateData != NULL) {\r
    UninstallTcgConfigForm (PrivateData);\r
  }\r
\r
  return Status;\r
}\r
\r
/**\r
  Unload the Tcg configuration form.\r
\r
  @param[in]  ImageHandle         The driver's image handle.\r
\r
  @retval     EFI_SUCCESS         The Tcg configuration form is unloaded.\r
  @retval     Others              Failed to unload the form.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
TcgConfigDriverUnload (\r
  IN EFI_HANDLE  ImageHandle\r
  )\r
{\r
  EFI_STATUS               Status;\r
  TCG_CONFIG_PRIVATE_DATA  *PrivateData;\r
\r
  Status = gBS->HandleProtocol (\r
                  ImageHandle,\r
                  &gEfiCallerIdGuid,\r
                  (VOID **)&PrivateData\r
                  );\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  ASSERT (PrivateData->Signature == TCG_CONFIG_PRIVATE_DATA_SIGNATURE);\r
\r
  gBS->UninstallMultipleProtocolInterfaces (\r
         ImageHandle,\r
         &gEfiCallerIdGuid,\r
         PrivateData,\r
         NULL\r
         );\r
\r
  UninstallTcgConfigForm (PrivateData);\r
\r
  return EFI_SUCCESS;\r
}\r