[mirror_edk2.git] / UefiCpuPkg / SecCore / SecMain.c

/** @file\r
  C functions in SEC\r
\r
  Copyright (c) 2008 - 2019, Intel Corporation. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "SecMain.h"\r
\r
EFI_PEI_TEMPORARY_RAM_DONE_PPI gSecTemporaryRamDonePpi = {\r
  SecTemporaryRamDone\r
};\r
\r
EFI_SEC_PLATFORM_INFORMATION_PPI  mSecPlatformInformationPpi = { SecPlatformInformation };\r
\r
EFI_PEI_PPI_DESCRIPTOR            mPeiSecPlatformInformationPpi[] = {\r
  {\r
    //\r
    // SecPerformance PPI notify descriptor.\r
    //\r
    EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r
    &gPeiSecPerformancePpiGuid,\r
    (VOID *) (UINTN) SecPerformancePpiCallBack\r
  },\r
  {\r
    EFI_PEI_PPI_DESCRIPTOR_PPI,\r
    &gEfiTemporaryRamDonePpiGuid,\r
    &gSecTemporaryRamDonePpi\r
  },\r
  {\r
    (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
    &gEfiSecPlatformInformationPpiGuid,\r
    &mSecPlatformInformationPpi\r
  }\r
};\r
\r
//\r
// These are IDT entries pointing to 10:FFFFFFE4h.\r
//\r
UINT64  mIdtEntryTemplate = 0xffff8e000010ffe4ULL;\r
\r
/**\r
  Caller provided function to be invoked at the end of InitializeDebugAgent().\r
\r
  Entry point to the C language phase of SEC. After the SEC assembly\r
  code has initialized some temporary memory and set up the stack,\r
  the control is transferred to this function.\r
\r
  @param[in] Context    The first input parameter of InitializeDebugAgent().\r
\r
**/\r
VOID\r
NORETURN\r
EFIAPI\r
SecStartupPhase2(\r
  IN VOID                     *Context\r
  );\r
\r
/**\r
  Entry point of the notification callback function itself within the PEIM.\r
  It is to get SEC performance data and build HOB to convey the SEC performance\r
  data to DXE phase.\r
\r
  @param  PeiServices      Indirect reference to the PEI Services Table.\r
  @param  NotifyDescriptor Address of the notification descriptor data structure.\r
  @param  Ppi              Address of the PPI that was installed.\r
\r
  @return Status of the notification.\r
          The status code returned from this function is ignored.\r
**/\r
EFI_STATUS\r
EFIAPI\r
SecPerformancePpiCallBack (\r
  IN EFI_PEI_SERVICES           **PeiServices,\r
  IN EFI_PEI_NOTIFY_DESCRIPTOR  *NotifyDescriptor,\r
  IN VOID                       *Ppi\r
  )\r
{\r
  EFI_STATUS                    Status;\r
  PEI_SEC_PERFORMANCE_PPI       *SecPerf;\r
  FIRMWARE_SEC_PERFORMANCE      Performance;\r
\r
  SecPerf = (PEI_SEC_PERFORMANCE_PPI *) Ppi;\r
  Status = SecPerf->GetPerformance ((CONST EFI_PEI_SERVICES **) PeiServices, SecPerf, &Performance);\r
  if (!EFI_ERROR (Status)) {\r
    BuildGuidDataHob (\r
      &gEfiFirmwarePerformanceGuid,\r
      &Performance,\r
      sizeof (FIRMWARE_SEC_PERFORMANCE)\r
    );\r
    DEBUG ((DEBUG_INFO, "FPDT: SEC Performance Hob ResetEnd = %ld\n", Performance.ResetEnd));\r
  }\r
\r
  return Status;\r
}\r
\r
/**\r
\r
  Entry point to the C language phase of SEC. After the SEC assembly\r
  code has initialized some temporary memory and set up the stack,\r
  the control is transferred to this function.\r
\r
\r
  @param SizeOfRam           Size of the temporary memory available for use.\r
  @param TempRamBase         Base address of temporary ram\r
  @param BootFirmwareVolume  Base address of the Boot Firmware Volume.\r
**/\r
VOID\r
NORETURN\r
EFIAPI\r
SecStartup (\r
  IN UINT32                   SizeOfRam,\r
  IN UINT32                   TempRamBase,\r
  IN VOID                     *BootFirmwareVolume\r
  )\r
{\r
  EFI_SEC_PEI_HAND_OFF        SecCoreData;\r
  IA32_DESCRIPTOR             IdtDescriptor;\r
  SEC_IDT_TABLE               IdtTableInStack;\r
  UINT32                      Index;\r
  UINT32                      PeiStackSize;\r
  EFI_STATUS                  Status;\r
\r
  //\r
  // Report Status Code to indicate entering SEC core\r
  //\r
  REPORT_STATUS_CODE (\r
    EFI_PROGRESS_CODE,\r
    EFI_SOFTWARE_SEC | EFI_SW_SEC_PC_ENTRY_POINT\r
    );\r
\r
  PeiStackSize = PcdGet32 (PcdPeiTemporaryRamStackSize);\r
  if (PeiStackSize == 0) {\r
    PeiStackSize = (SizeOfRam >> 1);\r
  }\r
\r
  ASSERT (PeiStackSize < SizeOfRam);\r
\r
  //\r
  // Process all libraries constructor function linked to SecCore.\r
  //\r
  ProcessLibraryConstructorList ();\r
\r
  //\r
  // Initialize floating point operating environment\r
  // to be compliant with UEFI spec.\r
  //\r
  InitializeFloatingPointUnits ();\r
\r
  // |-------------------|---->\r
  // |IDT Table          |\r
  // |-------------------|\r
  // |PeiService Pointer |    PeiStackSize\r
  // |-------------------|\r
  // |                   |\r
  // |      Stack        |\r
  // |-------------------|---->\r
  // |                   |\r
  // |                   |\r
  // |      Heap         |    PeiTemporayRamSize\r
  // |                   |\r
  // |                   |\r
  // |-------------------|---->  TempRamBase\r
\r
  IdtTableInStack.PeiService = 0;\r
  for (Index = 0; Index < SEC_IDT_ENTRY_COUNT; Index ++) {\r
    CopyMem ((VOID*)&IdtTableInStack.IdtTable[Index], (VOID*)&mIdtEntryTemplate, sizeof (UINT64));\r
  }\r
\r
  IdtDescriptor.Base  = (UINTN) &IdtTableInStack.IdtTable;\r
  IdtDescriptor.Limit = (UINT16)(sizeof (IdtTableInStack.IdtTable) - 1);\r
\r
  AsmWriteIdtr (&IdtDescriptor);\r
\r
  //\r
  // Setup the default exception handlers\r
  //\r
  Status = InitializeCpuExceptionHandlers (NULL);\r
  ASSERT_EFI_ERROR (Status);\r
\r
  //\r
  // Update the base address and length of Pei temporary memory\r
  //\r
  SecCoreData.DataSize               = (UINT16) sizeof (EFI_SEC_PEI_HAND_OFF);\r
  SecCoreData.BootFirmwareVolumeBase = BootFirmwareVolume;\r
  SecCoreData.BootFirmwareVolumeSize = (UINTN)((EFI_FIRMWARE_VOLUME_HEADER *) BootFirmwareVolume)->FvLength;\r
  SecCoreData.TemporaryRamBase       = (VOID*)(UINTN) TempRamBase;\r
  SecCoreData.TemporaryRamSize       = SizeOfRam;\r
  SecCoreData.PeiTemporaryRamBase    = SecCoreData.TemporaryRamBase;\r
  SecCoreData.PeiTemporaryRamSize    = SizeOfRam - PeiStackSize;\r
  SecCoreData.StackBase              = (VOID*)(UINTN)(TempRamBase + SecCoreData.PeiTemporaryRamSize);\r
  SecCoreData.StackSize              = PeiStackSize;\r
\r
  //\r
  // Initialize Debug Agent to support source level debug in SEC/PEI phases before memory ready.\r
  //\r
  InitializeDebugAgent (DEBUG_AGENT_INIT_PREMEM_SEC, &SecCoreData, SecStartupPhase2);\r
\r
  //\r
  // Should not come here.\r
  //\r
  UNREACHABLE ();\r
}\r
\r
/**\r
  Caller provided function to be invoked at the end of InitializeDebugAgent().\r
\r
  Entry point to the C language phase of SEC. After the SEC assembly\r
  code has initialized some temporary memory and set up the stack,\r
  the control is transferred to this function.\r
\r
  @param[in] Context    The first input parameter of InitializeDebugAgent().\r
\r
**/\r
VOID\r
NORETURN\r
EFIAPI\r
SecStartupPhase2(\r
  IN VOID                     *Context\r
  )\r
{\r
  EFI_SEC_PEI_HAND_OFF        *SecCoreData;\r
  EFI_PEI_PPI_DESCRIPTOR      *PpiList;\r
  UINT32                      Index;\r
  EFI_PEI_PPI_DESCRIPTOR      *AllSecPpiList;\r
  EFI_PEI_CORE_ENTRY_POINT    PeiCoreEntryPoint;\r
\r
  PeiCoreEntryPoint = NULL;\r
  SecCoreData   = (EFI_SEC_PEI_HAND_OFF *) Context;\r
\r
  //\r
  // Perform platform specific initialization before entering PeiCore.\r
  //\r
  PpiList = SecPlatformMain (SecCoreData);\r
  //\r
  // Find Pei Core entry point. It will report SEC and Pei Core debug information if remote debug\r
  // is enabled.\r
  //\r
  if (PpiList != NULL) {\r
    Index = 0;\r
    do {\r
      if (CompareGuid (PpiList[Index].Guid, &gEfiPeiCoreFvLocationPpiGuid) &&\r
          (((EFI_PEI_CORE_FV_LOCATION_PPI *) PpiList[Index].Ppi)->PeiCoreFvLocation != 0)\r
         ) {\r
        //\r
        // In this case, SecCore is in BFV but PeiCore is in another FV reported by PPI.\r
        //\r
        FindAndReportEntryPoints (\r
          (EFI_FIRMWARE_VOLUME_HEADER *) SecCoreData->BootFirmwareVolumeBase,\r
          (EFI_FIRMWARE_VOLUME_HEADER *) ((EFI_PEI_CORE_FV_LOCATION_PPI *) PpiList[Index].Ppi)->PeiCoreFvLocation,\r
          &PeiCoreEntryPoint\r
          );\r
        if (PeiCoreEntryPoint != NULL) {\r
          break;\r
        } else {\r
          //\r
          // Invalid PeiCore FV provided by platform\r
          //\r
          CpuDeadLoop ();\r
        }\r
      }\r
    } while ((PpiList[Index++].Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) != EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST);\r
  }\r
  //\r
  // If EFI_PEI_CORE_FV_LOCATION_PPI not found, try to locate PeiCore from BFV.\r
  //\r
  if (PeiCoreEntryPoint == NULL) {\r
    //\r
    // Both SecCore and PeiCore are in BFV.\r
    //\r
    FindAndReportEntryPoints (\r
      (EFI_FIRMWARE_VOLUME_HEADER *) SecCoreData->BootFirmwareVolumeBase,\r
      (EFI_FIRMWARE_VOLUME_HEADER *) SecCoreData->BootFirmwareVolumeBase,\r
      &PeiCoreEntryPoint\r
      );\r
    if (PeiCoreEntryPoint == NULL) {\r
      CpuDeadLoop ();\r
    }\r
  }\r
\r
  if (PpiList != NULL) {\r
    AllSecPpiList = (EFI_PEI_PPI_DESCRIPTOR *) SecCoreData->PeiTemporaryRamBase;\r
\r
    //\r
    // Remove the terminal flag from the terminal PPI\r
    //\r
    CopyMem (AllSecPpiList, mPeiSecPlatformInformationPpi, sizeof (mPeiSecPlatformInformationPpi));\r
    Index = sizeof (mPeiSecPlatformInformationPpi) / sizeof (EFI_PEI_PPI_DESCRIPTOR) - 1;\r
    AllSecPpiList[Index].Flags = AllSecPpiList[Index].Flags & (~EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST);\r
\r
    //\r
    // Append the platform additional PPI list\r
    //\r
    Index += 1;\r
    while (((PpiList->Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) != EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST)) {\r
      CopyMem (&AllSecPpiList[Index], PpiList, sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
      Index++;\r
      PpiList++;\r
    }\r
\r
    //\r
    // Add the terminal PPI\r
    //\r
    CopyMem (&AllSecPpiList[Index ++], PpiList, sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
\r
    //\r
    // Set PpiList to the total PPI\r
    //\r
    PpiList = AllSecPpiList;\r
\r
    //\r
    // Adjust PEI TEMP RAM Range.\r
    //\r
    ASSERT (SecCoreData->PeiTemporaryRamSize > Index * sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
    SecCoreData->PeiTemporaryRamBase = (VOID *)((UINTN) SecCoreData->PeiTemporaryRamBase + Index * sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
    SecCoreData->PeiTemporaryRamSize = SecCoreData->PeiTemporaryRamSize - Index * sizeof (EFI_PEI_PPI_DESCRIPTOR);\r
    //\r
    // Adjust the Base and Size to be 8-byte aligned as HOB which has 8byte aligned requirement\r
    // will be built based on them in PEI phase.\r
    //\r
    SecCoreData->PeiTemporaryRamBase = (VOID *)(((UINTN)SecCoreData->PeiTemporaryRamBase + 7) & ~0x07);\r
    SecCoreData->PeiTemporaryRamSize &= ~(UINTN)0x07;\r
  } else {\r
    //\r
    // No addition PPI, PpiList directly point to the common PPI list.\r
    //\r
    PpiList = &mPeiSecPlatformInformationPpi[0];\r
  }\r
\r
  DEBUG ((\r
    DEBUG_INFO,\r
    "%a() Stack Base: 0x%p, Stack Size: 0x%x\n",\r
    __FUNCTION__,\r
    SecCoreData->StackBase,\r
    (UINT32) SecCoreData->StackSize\r
    ));\r
\r
  //\r
  // Report Status Code to indicate transferring to PEI core\r
  //\r
  REPORT_STATUS_CODE (\r
    EFI_PROGRESS_CODE,\r
    EFI_SOFTWARE_SEC | EFI_SW_SEC_PC_HANDOFF_TO_NEXT\r
    );\r
\r
  //\r
  // Transfer the control to the PEI core\r
  //\r
  ASSERT (PeiCoreEntryPoint != NULL);\r
  (*PeiCoreEntryPoint) (SecCoreData, PpiList);\r
\r
  //\r
  // Should not come here.\r
  //\r
  UNREACHABLE ();\r
}\r
\r
/**\r
  TemporaryRamDone() disables the use of Temporary RAM. If present, this service is invoked\r
  by the PEI Foundation after the EFI_PEI_PERMANANT_MEMORY_INSTALLED_PPI is installed.\r
\r
  @retval EFI_SUCCESS           Use of Temporary RAM was disabled.\r
  @retval EFI_INVALID_PARAMETER Temporary RAM could not be disabled.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
SecTemporaryRamDone (\r
  VOID\r
  )\r
{\r
  EFI_STATUS                    Status;\r
  EFI_STATUS                    Status2;\r
  UINTN                         Index;\r
  BOOLEAN                       State;\r
  EFI_PEI_PPI_DESCRIPTOR        *PeiPpiDescriptor;\r
  REPUBLISH_SEC_PPI_PPI         *RepublishSecPpiPpi;\r
\r
  //\r
  // Republish Sec Platform Information(2) PPI\r
  //\r
  RepublishSecPlatformInformationPpi ();\r
\r
  //\r
  // Re-install SEC PPIs using a PEIM produced service if published\r
  //\r
  for (Index = 0, Status = EFI_SUCCESS; Status == EFI_SUCCESS; Index++) {\r
    Status = PeiServicesLocatePpi (\r
               &gRepublishSecPpiPpiGuid,\r
               Index,\r
               &PeiPpiDescriptor,\r
               (VOID **) &RepublishSecPpiPpi\r
               );\r
    if (!EFI_ERROR (Status)) {\r
      DEBUG ((DEBUG_INFO, "Calling RepublishSecPpi instance %d.\n", Index));\r
      Status2 = RepublishSecPpiPpi->RepublishSecPpis ();\r
      ASSERT_EFI_ERROR (Status2);\r
    }\r
  }\r
\r
  //\r
  // Migrate DebugAgentContext.\r
  //\r
  InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC, NULL, NULL);\r
\r
  //\r
  // Disable interrupts and save current interrupt state\r
  //\r
  State = SaveAndDisableInterrupts ();\r
\r
  //\r
  // Disable Temporary RAM after Stack and Heap have been migrated at this point.\r
  //\r
  SecPlatformDisableTemporaryMemory ();\r
\r
  //\r
  // Restore original interrupt state\r
  //\r
  SetInterruptState (State);\r
\r
  return EFI_SUCCESS;\r
}\r
Commit	Line	Data
	1	/** @file\r
	2	C functions in SEC\r
	3	\r
	4	Copyright (c) 2008 - 2019, Intel Corporation. All rights reserved.<BR>\r
	5	SPDX-License-Identifier: BSD-2-Clause-Patent\r
	6	\r
	7	**/\r
	8	\r
	9	#include "SecMain.h"\r
	10	\r
	11	EFI_PEI_TEMPORARY_RAM_DONE_PPI gSecTemporaryRamDonePpi = {\r
	12	SecTemporaryRamDone\r
	13	};\r
	14	\r
	15	EFI_SEC_PLATFORM_INFORMATION_PPI mSecPlatformInformationPpi = { SecPlatformInformation };\r
	16	\r
	17	EFI_PEI_PPI_DESCRIPTOR mPeiSecPlatformInformationPpi[] = {\r
	18	{\r
	19	//\r
	20	// SecPerformance PPI notify descriptor.\r
	21	//\r
	22	EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r
	23	&gPeiSecPerformancePpiGuid,\r
	24	(VOID *) (UINTN) SecPerformancePpiCallBack\r
	25	},\r
	26	{\r
	27	EFI_PEI_PPI_DESCRIPTOR_PPI,\r
	28	&gEfiTemporaryRamDonePpiGuid,\r
	29	&gSecTemporaryRamDonePpi\r
	30	},\r
	31	{\r
	32	(EFI_PEI_PPI_DESCRIPTOR_PPI \| EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
	33	&gEfiSecPlatformInformationPpiGuid,\r
	34	&mSecPlatformInformationPpi\r
	35	}\r
	36	};\r
	37	\r
	38	//\r
	39	// These are IDT entries pointing to 10:FFFFFFE4h.\r
	40	//\r
	41	UINT64 mIdtEntryTemplate = 0xffff8e000010ffe4ULL;\r
	42	\r
	43	/**\r
	44	Caller provided function to be invoked at the end of InitializeDebugAgent().\r
	45	\r
	46	Entry point to the C language phase of SEC. After the SEC assembly\r
	47	code has initialized some temporary memory and set up the stack,\r
	48	the control is transferred to this function.\r
	49	\r
	50	@param[in] Context The first input parameter of InitializeDebugAgent().\r
	51	\r
	52	**/\r
	53	VOID\r
	54	NORETURN\r
	55	EFIAPI\r
	56	SecStartupPhase2(\r
	57	IN VOID *Context\r
	58	);\r
	59	\r
	60	/**\r
	61	Entry point of the notification callback function itself within the PEIM.\r
	62	It is to get SEC performance data and build HOB to convey the SEC performance\r
	63	data to DXE phase.\r
	64	\r
	65	@param PeiServices Indirect reference to the PEI Services Table.\r
	66	@param NotifyDescriptor Address of the notification descriptor data structure.\r
	67	@param Ppi Address of the PPI that was installed.\r
	68	\r
	69	@return Status of the notification.\r
	70	The status code returned from this function is ignored.\r
	71	**/\r
	72	EFI_STATUS\r
	73	EFIAPI\r
	74	SecPerformancePpiCallBack (\r
	75	IN EFI_PEI_SERVICES **PeiServices,\r
	76	IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r
	77	IN VOID *Ppi\r
	78	)\r
	79	{\r
	80	EFI_STATUS Status;\r
	81	PEI_SEC_PERFORMANCE_PPI *SecPerf;\r
	82	FIRMWARE_SEC_PERFORMANCE Performance;\r
	83	\r
	84	SecPerf = (PEI_SEC_PERFORMANCE_PPI *) Ppi;\r
	85	Status = SecPerf->GetPerformance ((CONST EFI_PEI_SERVICES **) PeiServices, SecPerf, &Performance);\r
	86	if (!EFI_ERROR (Status)) {\r
	87	BuildGuidDataHob (\r
	88	&gEfiFirmwarePerformanceGuid,\r
	89	&Performance,\r
	90	sizeof (FIRMWARE_SEC_PERFORMANCE)\r
	91	);\r
	92	DEBUG ((DEBUG_INFO, "FPDT: SEC Performance Hob ResetEnd = %ld\n", Performance.ResetEnd));\r
	93	}\r
	94	\r
	95	return Status;\r
	96	}\r
	97	\r
	98	/**\r
	99	\r
	100	Entry point to the C language phase of SEC. After the SEC assembly\r
	101	code has initialized some temporary memory and set up the stack,\r
	102	the control is transferred to this function.\r
	103	\r
	104	\r
	105	@param SizeOfRam Size of the temporary memory available for use.\r
	106	@param TempRamBase Base address of temporary ram\r
	107	@param BootFirmwareVolume Base address of the Boot Firmware Volume.\r
	108	**/\r
	109	VOID\r
	110	NORETURN\r
	111	EFIAPI\r
	112	SecStartup (\r
	113	IN UINT32 SizeOfRam,\r
	114	IN UINT32 TempRamBase,\r
	115	IN VOID *BootFirmwareVolume\r
	116	)\r
	117	{\r
	118	EFI_SEC_PEI_HAND_OFF SecCoreData;\r
	119	IA32_DESCRIPTOR IdtDescriptor;\r
	120	SEC_IDT_TABLE IdtTableInStack;\r
	121	UINT32 Index;\r
	122	UINT32 PeiStackSize;\r
	123	EFI_STATUS Status;\r
	124	\r
	125	//\r
	126	// Report Status Code to indicate entering SEC core\r
	127	//\r
	128	REPORT_STATUS_CODE (\r
	129	EFI_PROGRESS_CODE,\r
	130	EFI_SOFTWARE_SEC \| EFI_SW_SEC_PC_ENTRY_POINT\r
	131	);\r
	132	\r
	133	PeiStackSize = PcdGet32 (PcdPeiTemporaryRamStackSize);\r
	134	if (PeiStackSize == 0) {\r
	135	PeiStackSize = (SizeOfRam >> 1);\r
	136	}\r
	137	\r
	138	ASSERT (PeiStackSize < SizeOfRam);\r
	139	\r
	140	//\r
	141	// Process all libraries constructor function linked to SecCore.\r
	142	//\r
	143	ProcessLibraryConstructorList ();\r
	144	\r
	145	//\r
	146	// Initialize floating point operating environment\r
	147	// to be compliant with UEFI spec.\r
	148	//\r
	149	InitializeFloatingPointUnits ();\r
	150	\r
	151	// \|-------------------\|---->\r
	152	// \|IDT Table \|\r
	153	// \|-------------------\|\r
	154	// \|PeiService Pointer \| PeiStackSize\r
	155	// \|-------------------\|\r
	156	// \| \|\r
	157	// \| Stack \|\r
	158	// \|-------------------\|---->\r
	159	// \| \|\r
	160	// \| \|\r
	161	// \| Heap \| PeiTemporayRamSize\r
	162	// \| \|\r
	163	// \| \|\r
	164	// \|-------------------\|----> TempRamBase\r
	165	\r
	166	IdtTableInStack.PeiService = 0;\r
	167	for (Index = 0; Index < SEC_IDT_ENTRY_COUNT; Index ++) {\r
	168	CopyMem ((VOID)&IdtTableInStack.IdtTable[Index], (VOID)&mIdtEntryTemplate, sizeof (UINT64));\r
	169	}\r
	170	\r
	171	IdtDescriptor.Base = (UINTN) &IdtTableInStack.IdtTable;\r
	172	IdtDescriptor.Limit = (UINT16)(sizeof (IdtTableInStack.IdtTable) - 1);\r
	173	\r
	174	AsmWriteIdtr (&IdtDescriptor);\r
	175	\r
	176	//\r
	177	// Setup the default exception handlers\r
	178	//\r
	179	Status = InitializeCpuExceptionHandlers (NULL);\r
	180	ASSERT_EFI_ERROR (Status);\r
	181	\r
	182	//\r
	183	// Update the base address and length of Pei temporary memory\r
	184	//\r
	185	SecCoreData.DataSize = (UINT16) sizeof (EFI_SEC_PEI_HAND_OFF);\r
	186	SecCoreData.BootFirmwareVolumeBase = BootFirmwareVolume;\r
	187	SecCoreData.BootFirmwareVolumeSize = (UINTN)((EFI_FIRMWARE_VOLUME_HEADER *) BootFirmwareVolume)->FvLength;\r
	188	SecCoreData.TemporaryRamBase = (VOID*)(UINTN) TempRamBase;\r
	189	SecCoreData.TemporaryRamSize = SizeOfRam;\r
	190	SecCoreData.PeiTemporaryRamBase = SecCoreData.TemporaryRamBase;\r
	191	SecCoreData.PeiTemporaryRamSize = SizeOfRam - PeiStackSize;\r
	192	SecCoreData.StackBase = (VOID*)(UINTN)(TempRamBase + SecCoreData.PeiTemporaryRamSize);\r
	193	SecCoreData.StackSize = PeiStackSize;\r
	194	\r
	195	//\r
	196	// Initialize Debug Agent to support source level debug in SEC/PEI phases before memory ready.\r
	197	//\r
	198	InitializeDebugAgent (DEBUG_AGENT_INIT_PREMEM_SEC, &SecCoreData, SecStartupPhase2);\r
	199	\r
	200	//\r
	201	// Should not come here.\r
	202	//\r
	203	UNREACHABLE ();\r
	204	}\r
	205	\r
	206	/**\r
	207	Caller provided function to be invoked at the end of InitializeDebugAgent().\r
	208	\r
	209	Entry point to the C language phase of SEC. After the SEC assembly\r
	210	code has initialized some temporary memory and set up the stack,\r
	211	the control is transferred to this function.\r
	212	\r
	213	@param[in] Context The first input parameter of InitializeDebugAgent().\r
	214	\r
	215	**/\r
	216	VOID\r
	217	NORETURN\r
	218	EFIAPI\r
	219	SecStartupPhase2(\r
	220	IN VOID *Context\r
	221	)\r
	222	{\r
	223	EFI_SEC_PEI_HAND_OFF *SecCoreData;\r
	224	EFI_PEI_PPI_DESCRIPTOR *PpiList;\r
	225	UINT32 Index;\r
	226	EFI_PEI_PPI_DESCRIPTOR *AllSecPpiList;\r
	227	EFI_PEI_CORE_ENTRY_POINT PeiCoreEntryPoint;\r
	228	\r
	229	PeiCoreEntryPoint = NULL;\r
	230	SecCoreData = (EFI_SEC_PEI_HAND_OFF *) Context;\r
	231	\r
	232	//\r
	233	// Perform platform specific initialization before entering PeiCore.\r
	234	//\r
	235	PpiList = SecPlatformMain (SecCoreData);\r
	236	//\r
	237	// Find Pei Core entry point. It will report SEC and Pei Core debug information if remote debug\r
	238	// is enabled.\r
	239	//\r
	240	if (PpiList != NULL) {\r
	241	Index = 0;\r
	242	do {\r
	243	if (CompareGuid (PpiList[Index].Guid, &gEfiPeiCoreFvLocationPpiGuid) &&\r
	244	(((EFI_PEI_CORE_FV_LOCATION_PPI *) PpiList[Index].Ppi)->PeiCoreFvLocation != 0)\r
	245	) {\r
	246	//\r
	247	// In this case, SecCore is in BFV but PeiCore is in another FV reported by PPI.\r
	248	//\r
	249	FindAndReportEntryPoints (\r
	250	(EFI_FIRMWARE_VOLUME_HEADER *) SecCoreData->BootFirmwareVolumeBase,\r
	251	(EFI_FIRMWARE_VOLUME_HEADER ) ((EFI_PEI_CORE_FV_LOCATION_PPI ) PpiList[Index].Ppi)->PeiCoreFvLocation,\r
	252	&PeiCoreEntryPoint\r
	253	);\r
	254	if (PeiCoreEntryPoint != NULL) {\r
	255	break;\r
	256	} else {\r
	257	//\r
	258	// Invalid PeiCore FV provided by platform\r
	259	//\r
	260	CpuDeadLoop ();\r
	261	}\r
	262	}\r
	263	} while ((PpiList[Index++].Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) != EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST);\r
	264	}\r
	265	//\r
	266	// If EFI_PEI_CORE_FV_LOCATION_PPI not found, try to locate PeiCore from BFV.\r
	267	//\r
	268	if (PeiCoreEntryPoint == NULL) {\r
	269	//\r
	270	// Both SecCore and PeiCore are in BFV.\r
	271	//\r
	272	FindAndReportEntryPoints (\r
	273	(EFI_FIRMWARE_VOLUME_HEADER *) SecCoreData->BootFirmwareVolumeBase,\r
	274	(EFI_FIRMWARE_VOLUME_HEADER *) SecCoreData->BootFirmwareVolumeBase,\r
	275	&PeiCoreEntryPoint\r
	276	);\r
	277	if (PeiCoreEntryPoint == NULL) {\r
	278	CpuDeadLoop ();\r
	279	}\r
	280	}\r
	281	\r
	282	if (PpiList != NULL) {\r
	283	AllSecPpiList = (EFI_PEI_PPI_DESCRIPTOR *) SecCoreData->PeiTemporaryRamBase;\r
	284	\r
	285	//\r
	286	// Remove the terminal flag from the terminal PPI\r
	287	//\r
	288	CopyMem (AllSecPpiList, mPeiSecPlatformInformationPpi, sizeof (mPeiSecPlatformInformationPpi));\r
	289	Index = sizeof (mPeiSecPlatformInformationPpi) / sizeof (EFI_PEI_PPI_DESCRIPTOR) - 1;\r
	290	AllSecPpiList[Index].Flags = AllSecPpiList[Index].Flags & (~EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST);\r
	291	\r
	292	//\r
	293	// Append the platform additional PPI list\r
	294	//\r
	295	Index += 1;\r
	296	while (((PpiList->Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) != EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST)) {\r
	297	CopyMem (&AllSecPpiList[Index], PpiList, sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
	298	Index++;\r
	299	PpiList++;\r
	300	}\r
	301	\r
	302	//\r
	303	// Add the terminal PPI\r
	304	//\r
	305	CopyMem (&AllSecPpiList[Index ++], PpiList, sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
	306	\r
	307	//\r
	308	// Set PpiList to the total PPI\r
	309	//\r
	310	PpiList = AllSecPpiList;\r
	311	\r
	312	//\r
	313	// Adjust PEI TEMP RAM Range.\r
	314	//\r
	315	ASSERT (SecCoreData->PeiTemporaryRamSize > Index * sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
	316	SecCoreData->PeiTemporaryRamBase = (VOID )((UINTN) SecCoreData->PeiTemporaryRamBase + Index sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
	317	SecCoreData->PeiTemporaryRamSize = SecCoreData->PeiTemporaryRamSize - Index * sizeof (EFI_PEI_PPI_DESCRIPTOR);\r
	318	//\r
	319	// Adjust the Base and Size to be 8-byte aligned as HOB which has 8byte aligned requirement\r
	320	// will be built based on them in PEI phase.\r
	321	//\r
	322	SecCoreData->PeiTemporaryRamBase = (VOID *)(((UINTN)SecCoreData->PeiTemporaryRamBase + 7) & ~0x07);\r
	323	SecCoreData->PeiTemporaryRamSize &= ~(UINTN)0x07;\r
	324	} else {\r
	325	//\r
	326	// No addition PPI, PpiList directly point to the common PPI list.\r
	327	//\r
	328	PpiList = &mPeiSecPlatformInformationPpi[0];\r
	329	}\r
	330	\r
	331	DEBUG ((\r
	332	DEBUG_INFO,\r
	333	"%a() Stack Base: 0x%p, Stack Size: 0x%x\n",\r
	334	__FUNCTION__,\r
	335	SecCoreData->StackBase,\r
	336	(UINT32) SecCoreData->StackSize\r
	337	));\r
	338	\r
	339	//\r
	340	// Report Status Code to indicate transferring to PEI core\r
	341	//\r
	342	REPORT_STATUS_CODE (\r
	343	EFI_PROGRESS_CODE,\r
	344	EFI_SOFTWARE_SEC \| EFI_SW_SEC_PC_HANDOFF_TO_NEXT\r
	345	);\r
	346	\r
	347	//\r
	348	// Transfer the control to the PEI core\r
	349	//\r
	350	ASSERT (PeiCoreEntryPoint != NULL);\r
	351	(*PeiCoreEntryPoint) (SecCoreData, PpiList);\r
	352	\r
	353	//\r
	354	// Should not come here.\r
	355	//\r
	356	UNREACHABLE ();\r
	357	}\r
	358	\r
	359	/**\r
	360	TemporaryRamDone() disables the use of Temporary RAM. If present, this service is invoked\r
	361	by the PEI Foundation after the EFI_PEI_PERMANANT_MEMORY_INSTALLED_PPI is installed.\r
	362	\r
	363	@retval EFI_SUCCESS Use of Temporary RAM was disabled.\r
	364	@retval EFI_INVALID_PARAMETER Temporary RAM could not be disabled.\r
	365	\r
	366	**/\r
	367	EFI_STATUS\r
	368	EFIAPI\r
	369	SecTemporaryRamDone (\r
	370	VOID\r
	371	)\r
	372	{\r
	373	EFI_STATUS Status;\r
	374	EFI_STATUS Status2;\r
	375	UINTN Index;\r
	376	BOOLEAN State;\r
	377	EFI_PEI_PPI_DESCRIPTOR *PeiPpiDescriptor;\r
	378	REPUBLISH_SEC_PPI_PPI *RepublishSecPpiPpi;\r
	379	\r
	380	//\r
	381	// Republish Sec Platform Information(2) PPI\r
	382	//\r
	383	RepublishSecPlatformInformationPpi ();\r
	384	\r
	385	//\r
	386	// Re-install SEC PPIs using a PEIM produced service if published\r
	387	//\r
	388	for (Index = 0, Status = EFI_SUCCESS; Status == EFI_SUCCESS; Index++) {\r
	389	Status = PeiServicesLocatePpi (\r
	390	&gRepublishSecPpiPpiGuid,\r
	391	Index,\r
	392	&PeiPpiDescriptor,\r
	393	(VOID **) &RepublishSecPpiPpi\r
	394	);\r
	395	if (!EFI_ERROR (Status)) {\r
	396	DEBUG ((DEBUG_INFO, "Calling RepublishSecPpi instance %d.\n", Index));\r
	397	Status2 = RepublishSecPpiPpi->RepublishSecPpis ();\r
	398	ASSERT_EFI_ERROR (Status2);\r
	399	}\r
	400	}\r
	401	\r
	402	//\r
	403	// Migrate DebugAgentContext.\r
	404	//\r
	405	InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC, NULL, NULL);\r
	406	\r
	407	//\r
	408	// Disable interrupts and save current interrupt state\r
	409	//\r
	410	State = SaveAndDisableInterrupts ();\r
	411	\r
	412	//\r
	413	// Disable Temporary RAM after Stack and Heap have been migrated at this point.\r
	414	//\r
	415	SecPlatformDisableTemporaryMemory ();\r
	416	\r
	417	//\r
	418	// Restore original interrupt state\r
	419	//\r
	420	SetInterruptState (State);\r
	421	\r
	422	return EFI_SUCCESS;\r
	423	}\r