[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
  Migrates the Global Descriptor Table (GDT) to permanent memory.\r
\r
  @retval   EFI_SUCCESS           The GDT was migrated successfully.\r
  @retval   EFI_OUT_OF_RESOURCES  The GDT could not be migrated due to lack of available memory.\r
\r
**/\r
EFI_STATUS\r
MigrateGdt (\r
  VOID\r
  )\r
{\r
  EFI_STATUS       Status;\r
  UINTN            GdtBufferSize;\r
  IA32_DESCRIPTOR  Gdtr;\r
  VOID             *GdtBuffer;\r
\r
  AsmReadGdtr ((IA32_DESCRIPTOR *)&Gdtr);\r
  GdtBufferSize = sizeof (IA32_SEGMENT_DESCRIPTOR) -1 + Gdtr.Limit + 1;\r
\r
  Status =  PeiServicesAllocatePool (\r
              GdtBufferSize,\r
              &GdtBuffer\r
              );\r
  ASSERT (GdtBuffer != NULL);\r
  if (EFI_ERROR (Status)) {\r
    return EFI_OUT_OF_RESOURCES;\r
  }\r
\r
  GdtBuffer = ALIGN_POINTER (GdtBuffer, sizeof (IA32_SEGMENT_DESCRIPTOR));\r
  CopyMem (GdtBuffer, (VOID *)Gdtr.Base, Gdtr.Limit + 1);\r
  Gdtr.Base = (UINTN)GdtBuffer;\r
  AsmWriteGdtr (&Gdtr);\r
\r
  return EFI_SUCCESS;\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
  DEBUG ((\r
    DEBUG_INFO,\r
    "%a() TempRAM Base: 0x%x, TempRAM Size: 0x%x, BootFirmwareVolume 0x%x\n",\r
    __FUNCTION__,\r
    TempRamBase,\r
    SizeOfRam,\r
    BootFirmwareVolume\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
  DEBUG ((\r
    DEBUG_INFO,\r
    "%a() BFV Base: 0x%x, BFV Size: 0x%x, TempRAM Base: 0x%x, TempRAM Size: 0x%x, PeiTempRamBase: 0x%x, PeiTempRamSize: 0x%x, StackBase: 0x%x, StackSize: 0x%x\n",\r
    __FUNCTION__,\r
    SecCoreData.BootFirmwareVolumeBase,\r
    SecCoreData.BootFirmwareVolumeSize,\r
    SecCoreData.TemporaryRamBase,\r
    SecCoreData.TemporaryRamSize,\r
    SecCoreData.PeiTemporaryRamBase,\r
    SecCoreData.PeiTemporaryRamSize,\r
    SecCoreData.StackBase,\r
    SecCoreData.StackSize\r
    ));\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
        //\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
  //\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
  DEBUG ((\r
    DEBUG_INFO,\r
    "%a() PeiCoreEntryPoint: 0x%x\n",\r
    __FUNCTION__,\r
    PeiCoreEntryPoint\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
    DEBUG ((\r
      DEBUG_INFO,\r
      "%a() PeiTemporaryRamBase: 0x%x, PeiTemporaryRamSize: 0x%x\n",\r
      __FUNCTION__,\r
      SecCoreData->PeiTemporaryRamBase,\r
      SecCoreData->PeiTemporaryRamSize\r
      ));\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
  // Migrate GDT before NEM near down\r
  //\r
  if (PcdGetBool (PcdMigrateTemporaryRamFirmwareVolumes)) {\r
    Status = MigrateGdt ();\r
    ASSERT_EFI_ERROR (Status);\r
  }\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
1921695e MK	1	/** @file\r
	2	C functions in SEC\r
	3	\r
373c2c5b	4	Copyright (c) 2008 - 2019, Intel Corporation. All rights reserved.<BR>\r
0acd8697	5	SPDX-License-Identifier: BSD-2-Clause-Patent\r
1921695e MK	6	\r
	7	**/\r
	8	\r
	9	#include "SecMain.h"\r
	10	\r
053e878b	11	EFI_PEI_TEMPORARY_RAM_DONE_PPI gSecTemporaryRamDonePpi = {\r
1921695e MK	12	SecTemporaryRamDone\r
	13	};\r
	14	\r
	15	EFI_SEC_PLATFORM_INFORMATION_PPI mSecPlatformInformationPpi = { SecPlatformInformation };\r
	16	\r
053e878b	17	EFI_PEI_PPI_DESCRIPTOR mPeiSecPlatformInformationPpi[] = {\r
f2e70629 SZ	18	{\r
	19	//\r
	20	// SecPerformance PPI notify descriptor.\r
	21	//\r
	22	EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r
	23	&gPeiSecPerformancePpiGuid,\r
053e878b	24	(VOID *)(UINTN)SecPerformancePpiCallBack\r
f2e70629	25	},\r
1921695e MK	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
f6ec1dd3 GJ	38	/**\r
	39	Migrates the Global Descriptor Table (GDT) to permanent memory.\r
	40	\r
	41	@retval EFI_SUCCESS The GDT was migrated successfully.\r
	42	@retval EFI_OUT_OF_RESOURCES The GDT could not be migrated due to lack of available memory.\r
	43	\r
	44	**/\r
	45	EFI_STATUS\r
	46	MigrateGdt (\r
	47	VOID\r
	48	)\r
	49	{\r
053e878b MK	50	EFI_STATUS Status;\r
	51	UINTN GdtBufferSize;\r
	52	IA32_DESCRIPTOR Gdtr;\r
	53	VOID *GdtBuffer;\r
f6ec1dd3	54	\r
053e878b	55	AsmReadGdtr ((IA32_DESCRIPTOR *)&Gdtr);\r
f6ec1dd3 GJ	56	GdtBufferSize = sizeof (IA32_SEGMENT_DESCRIPTOR) -1 + Gdtr.Limit + 1;\r
	57	\r
	58	Status = PeiServicesAllocatePool (\r
	59	GdtBufferSize,\r
	60	&GdtBuffer\r
	61	);\r
	62	ASSERT (GdtBuffer != NULL);\r
	63	if (EFI_ERROR (Status)) {\r
	64	return EFI_OUT_OF_RESOURCES;\r
	65	}\r
	66	\r
	67	GdtBuffer = ALIGN_POINTER (GdtBuffer, sizeof (IA32_SEGMENT_DESCRIPTOR));\r
053e878b MK	68	CopyMem (GdtBuffer, (VOID *)Gdtr.Base, Gdtr.Limit + 1);\r
053e878b MK	69	Gdtr.Base = (UINTN)GdtBuffer;\r
f6ec1dd3 GJ	70	AsmWriteGdtr (&Gdtr);\r
	71	\r
	72	return EFI_SUCCESS;\r
	73	}\r
	74	\r
1921695e MK	75	//\r
	76	// These are IDT entries pointing to 10:FFFFFFE4h.\r
	77	//\r
	78	UINT64 mIdtEntryTemplate = 0xffff8e000010ffe4ULL;\r
	79	\r
	80	/**\r
	81	Caller provided function to be invoked at the end of InitializeDebugAgent().\r
	82	\r
	83	Entry point to the C language phase of SEC. After the SEC assembly\r
	84	code has initialized some temporary memory and set up the stack,\r
	85	the control is transferred to this function.\r
	86	\r
	87	@param[in] Context The first input parameter of InitializeDebugAgent().\r
	88	\r
	89	**/\r
	90	VOID\r
61257251	91	NORETURN\r
1921695e	92	EFIAPI\r
053e878b MK	93	SecStartupPhase2 (\r
053e878b MK	94	IN VOID *Context\r
1921695e MK	95	);\r
1921695e MK	96	\r
f2e70629 SZ	97	/**\r
	98	Entry point of the notification callback function itself within the PEIM.\r
	99	It is to get SEC performance data and build HOB to convey the SEC performance\r
	100	data to DXE phase.\r
	101	\r
	102	@param PeiServices Indirect reference to the PEI Services Table.\r
	103	@param NotifyDescriptor Address of the notification descriptor data structure.\r
	104	@param Ppi Address of the PPI that was installed.\r
	105	\r
	106	@return Status of the notification.\r
	107	The status code returned from this function is ignored.\r
	108	**/\r
	109	EFI_STATUS\r
	110	EFIAPI\r
	111	SecPerformancePpiCallBack (\r
	112	IN EFI_PEI_SERVICES **PeiServices,\r
	113	IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r
	114	IN VOID *Ppi\r
	115	)\r
	116	{\r
053e878b MK	117	EFI_STATUS Status;\r
	118	PEI_SEC_PERFORMANCE_PPI *SecPerf;\r
	119	FIRMWARE_SEC_PERFORMANCE Performance;\r
f2e70629	120	\r
053e878b MK	121	SecPerf = (PEI_SEC_PERFORMANCE_PPI *)Ppi;\r
053e878b MK	122	Status = SecPerf->GetPerformance ((CONST EFI_PEI_SERVICES **)PeiServices, SecPerf, &Performance);\r
f2e70629 SZ	123	if (!EFI_ERROR (Status)) {\r
	124	BuildGuidDataHob (\r
	125	&gEfiFirmwarePerformanceGuid,\r
	126	&Performance,\r
	127	sizeof (FIRMWARE_SEC_PERFORMANCE)\r
053e878b	128	);\r
f2e70629 SZ	129	DEBUG ((DEBUG_INFO, "FPDT: SEC Performance Hob ResetEnd = %ld\n", Performance.ResetEnd));\r
	130	}\r
	131	\r
	132	return Status;\r
	133	}\r
	134	\r
1921695e MK	135	/**\r
	136	\r
	137	Entry point to the C language phase of SEC. After the SEC assembly\r
	138	code has initialized some temporary memory and set up the stack,\r
	139	the control is transferred to this function.\r
	140	\r
	141	\r
	142	@param SizeOfRam Size of the temporary memory available for use.\r
	143	@param TempRamBase Base address of temporary ram\r
	144	@param BootFirmwareVolume Base address of the Boot Firmware Volume.\r
	145	**/\r
	146	VOID\r
7cd8a575	147	NORETURN\r
1921695e MK	148	EFIAPI\r
1921695e MK	149	SecStartup (\r
053e878b MK	150	IN UINT32 SizeOfRam,\r
	151	IN UINT32 TempRamBase,\r
	152	IN VOID *BootFirmwareVolume\r
1921695e MK	153	)\r
1921695e MK	154	{\r
053e878b MK	155	EFI_SEC_PEI_HAND_OFF SecCoreData;\r
	156	IA32_DESCRIPTOR IdtDescriptor;\r
	157	SEC_IDT_TABLE IdtTableInStack;\r
	158	UINT32 Index;\r
	159	UINT32 PeiStackSize;\r
	160	EFI_STATUS Status;\r
1921695e MK	161	\r
	162	//\r
	163	// Report Status Code to indicate entering SEC core\r
	164	//\r
	165	REPORT_STATUS_CODE (\r
	166	EFI_PROGRESS_CODE,\r
	167	EFI_SOFTWARE_SEC \| EFI_SW_SEC_PC_ENTRY_POINT\r
	168	);\r
	169	\r
e93bc630 OI	170	DEBUG ((\r
	171	DEBUG_INFO,\r
	172	"%a() TempRAM Base: 0x%x, TempRAM Size: 0x%x, BootFirmwareVolume 0x%x\n",\r
	173	__FUNCTION__,\r
	174	TempRamBase,\r
	175	SizeOfRam,\r
	176	BootFirmwareVolume\r
	177	));\r
	178	\r
1921695e MK	179	PeiStackSize = PcdGet32 (PcdPeiTemporaryRamStackSize);\r
	180	if (PeiStackSize == 0) {\r
	181	PeiStackSize = (SizeOfRam >> 1);\r
	182	}\r
	183	\r
	184	ASSERT (PeiStackSize < SizeOfRam);\r
	185	\r
	186	//\r
	187	// Process all libraries constructor function linked to SecCore.\r
	188	//\r
	189	ProcessLibraryConstructorList ();\r
	190	\r
	191	//\r
	192	// Initialize floating point operating environment\r
	193	// to be compliant with UEFI spec.\r
	194	//\r
	195	InitializeFloatingPointUnits ();\r
	196	\r
	197	// \|-------------------\|---->\r
	198	// \|IDT Table \|\r
	199	// \|-------------------\|\r
	200	// \|PeiService Pointer \| PeiStackSize\r
	201	// \|-------------------\|\r
	202	// \| \|\r
	203	// \| Stack \|\r
	204	// \|-------------------\|---->\r
	205	// \| \|\r
	206	// \| \|\r
	207	// \| Heap \| PeiTemporayRamSize\r
	208	// \| \|\r
	209	// \| \|\r
	210	// \|-------------------\|----> TempRamBase\r
	211	\r
	212	IdtTableInStack.PeiService = 0;\r
053e878b MK	213	for (Index = 0; Index < SEC_IDT_ENTRY_COUNT; Index++) {\r
053e878b MK	214	CopyMem ((VOID )&IdtTableInStack.IdtTable[Index], (VOID )&mIdtEntryTemplate, sizeof (UINT64));\r
1921695e MK	215	}\r
1921695e MK	216	\r
053e878b	217	IdtDescriptor.Base = (UINTN)&IdtTableInStack.IdtTable;\r
1921695e MK	218	IdtDescriptor.Limit = (UINT16)(sizeof (IdtTableInStack.IdtTable) - 1);\r
	219	\r
	220	AsmWriteIdtr (&IdtDescriptor);\r
	221	\r
	222	//\r
	223	// Setup the default exception handlers\r
	224	//\r
	225	Status = InitializeCpuExceptionHandlers (NULL);\r
	226	ASSERT_EFI_ERROR (Status);\r
	227	\r
	228	//\r
	229	// Update the base address and length of Pei temporary memory\r
	230	//\r
053e878b	231	SecCoreData.DataSize = (UINT16)sizeof (EFI_SEC_PEI_HAND_OFF);\r
1921695e	232	SecCoreData.BootFirmwareVolumeBase = BootFirmwareVolume;\r
053e878b MK	233	SecCoreData.BootFirmwareVolumeSize = (UINTN)((EFI_FIRMWARE_VOLUME_HEADER *)BootFirmwareVolume)->FvLength;\r
053e878b MK	234	SecCoreData.TemporaryRamBase = (VOID *)(UINTN)TempRamBase;\r
1921695e MK	235	SecCoreData.TemporaryRamSize = SizeOfRam;\r
	236	SecCoreData.PeiTemporaryRamBase = SecCoreData.TemporaryRamBase;\r
	237	SecCoreData.PeiTemporaryRamSize = SizeOfRam - PeiStackSize;\r
053e878b	238	SecCoreData.StackBase = (VOID *)(UINTN)(TempRamBase + SecCoreData.PeiTemporaryRamSize);\r
1921695e MK	239	SecCoreData.StackSize = PeiStackSize;\r
1921695e MK	240	\r
e93bc630 OI	241	DEBUG ((\r
	242	DEBUG_INFO,\r
	243	"%a() BFV Base: 0x%x, BFV Size: 0x%x, TempRAM Base: 0x%x, TempRAM Size: 0x%x, PeiTempRamBase: 0x%x, PeiTempRamSize: 0x%x, StackBase: 0x%x, StackSize: 0x%x\n",\r
	244	__FUNCTION__,\r
	245	SecCoreData.BootFirmwareVolumeBase,\r
	246	SecCoreData.BootFirmwareVolumeSize,\r
	247	SecCoreData.TemporaryRamBase,\r
	248	SecCoreData.TemporaryRamSize,\r
	249	SecCoreData.PeiTemporaryRamBase,\r
	250	SecCoreData.PeiTemporaryRamSize,\r
	251	SecCoreData.StackBase,\r
	252	SecCoreData.StackSize\r
	253	));\r
	254	\r
1921695e MK	255	//\r
	256	// Initialize Debug Agent to support source level debug in SEC/PEI phases before memory ready.\r
	257	//\r
	258	InitializeDebugAgent (DEBUG_AGENT_INIT_PREMEM_SEC, &SecCoreData, SecStartupPhase2);\r
7cd8a575 MH	259	\r
	260	//\r
	261	// Should not come here.\r
	262	//\r
	263	UNREACHABLE ();\r
1921695e MK	264	}\r
	265	\r
	266	/**\r
	267	Caller provided function to be invoked at the end of InitializeDebugAgent().\r
	268	\r
	269	Entry point to the C language phase of SEC. After the SEC assembly\r
	270	code has initialized some temporary memory and set up the stack,\r
	271	the control is transferred to this function.\r
	272	\r
	273	@param[in] Context The first input parameter of InitializeDebugAgent().\r
	274	\r
	275	**/\r
	276	VOID\r
61257251	277	NORETURN\r
1921695e	278	EFIAPI\r
053e878b MK	279	SecStartupPhase2 (\r
053e878b MK	280	IN VOID *Context\r
1921695e MK	281	)\r
1921695e MK	282	{\r
053e878b MK	283	EFI_SEC_PEI_HAND_OFF *SecCoreData;\r
	284	EFI_PEI_PPI_DESCRIPTOR *PpiList;\r
	285	UINT32 Index;\r
	286	EFI_PEI_PPI_DESCRIPTOR *AllSecPpiList;\r
	287	EFI_PEI_CORE_ENTRY_POINT PeiCoreEntryPoint;\r
1921695e	288	\r
373c2c5b	289	PeiCoreEntryPoint = NULL;\r
053e878b	290	SecCoreData = (EFI_SEC_PEI_HAND_OFF *)Context;\r
373c2c5b	291	\r
1b261a70 CC	292	//\r
	293	// Perform platform specific initialization before entering PeiCore.\r
	294	//\r
	295	PpiList = SecPlatformMain (SecCoreData);\r
1921695e MK	296	//\r
	297	// Find Pei Core entry point. It will report SEC and Pei Core debug information if remote debug\r
	298	// is enabled.\r
	299	//\r
373c2c5b	300	if (PpiList != NULL) {\r
8a1305a1 CC	301	Index = 0;\r
8a1305a1 CC	302	do {\r
08283b96	303	if (CompareGuid (PpiList[Index].Guid, &gEfiPeiCoreFvLocationPpiGuid) &&\r
053e878b MK	304	(((EFI_PEI_CORE_FV_LOCATION_PPI *)PpiList[Index].Ppi)->PeiCoreFvLocation != 0)\r
	305	)\r
	306	{\r
08283b96 CC	307	//\r
	308	// In this case, SecCore is in BFV but PeiCore is in another FV reported by PPI.\r
	309	//\r
	310	FindAndReportEntryPoints (\r
053e878b MK	311	(EFI_FIRMWARE_VOLUME_HEADER *)SecCoreData->BootFirmwareVolumeBase,\r
053e878b MK	312	(EFI_FIRMWARE_VOLUME_HEADER )((EFI_PEI_CORE_FV_LOCATION_PPI )PpiList[Index].Ppi)->PeiCoreFvLocation,\r
08283b96 CC	313	&PeiCoreEntryPoint\r
08283b96 CC	314	);\r
373c2c5b CC	315	if (PeiCoreEntryPoint != NULL) {\r
	316	break;\r
	317	} else {\r
	318	//\r
8a1305a1	319	// Invalid PeiCore FV provided by platform\r
373c2c5b CC	320	//\r
	321	CpuDeadLoop ();\r
	322	}\r
	323	}\r
8a1305a1	324	} while ((PpiList[Index++].Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) != EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST);\r
373c2c5b	325	}\r
053e878b	326	\r
373c2c5b CC	327	//\r
	328	// If EFI_PEI_CORE_FV_LOCATION_PPI not found, try to locate PeiCore from BFV.\r
	329	//\r
	330	if (PeiCoreEntryPoint == NULL) {\r
08283b96 CC	331	//\r
	332	// Both SecCore and PeiCore are in BFV.\r
	333	//\r
	334	FindAndReportEntryPoints (\r
053e878b MK	335	(EFI_FIRMWARE_VOLUME_HEADER *)SecCoreData->BootFirmwareVolumeBase,\r
053e878b MK	336	(EFI_FIRMWARE_VOLUME_HEADER *)SecCoreData->BootFirmwareVolumeBase,\r
08283b96 CC	337	&PeiCoreEntryPoint\r
08283b96 CC	338	);\r
373c2c5b CC	339	if (PeiCoreEntryPoint == NULL) {\r
	340	CpuDeadLoop ();\r
	341	}\r
1921695e MK	342	}\r
1921695e MK	343	\r
e93bc630 OI	344	DEBUG ((\r
	345	DEBUG_INFO,\r
	346	"%a() PeiCoreEntryPoint: 0x%x\n",\r
	347	__FUNCTION__,\r
	348	PeiCoreEntryPoint\r
	349	));\r
	350	\r
1921695e	351	if (PpiList != NULL) {\r
053e878b	352	AllSecPpiList = (EFI_PEI_PPI_DESCRIPTOR *)SecCoreData->PeiTemporaryRamBase;\r
47f167f4	353	\r
1921695e MK	354	//\r
	355	// Remove the terminal flag from the terminal PPI\r
	356	//\r
	357	CopyMem (AllSecPpiList, mPeiSecPlatformInformationPpi, sizeof (mPeiSecPlatformInformationPpi));\r
053e878b	358	Index = sizeof (mPeiSecPlatformInformationPpi) / sizeof (EFI_PEI_PPI_DESCRIPTOR) - 1;\r
1921695e MK	359	AllSecPpiList[Index].Flags = AllSecPpiList[Index].Flags & (~EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST);\r
	360	\r
	361	//\r
	362	// Append the platform additional PPI list\r
	363	//\r
	364	Index += 1;\r
	365	while (((PpiList->Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) != EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST)) {\r
	366	CopyMem (&AllSecPpiList[Index], PpiList, sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
	367	Index++;\r
	368	PpiList++;\r
	369	}\r
	370	\r
	371	//\r
	372	// Add the terminal PPI\r
	373	//\r
053e878b	374	CopyMem (&AllSecPpiList[Index++], PpiList, sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
1921695e MK	375	\r
	376	//\r
	377	// Set PpiList to the total PPI\r
	378	//\r
	379	PpiList = AllSecPpiList;\r
	380	\r
	381	//\r
	382	// Adjust PEI TEMP RAM Range.\r
	383	//\r
	384	ASSERT (SecCoreData->PeiTemporaryRamSize > Index * sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
053e878b	385	SecCoreData->PeiTemporaryRamBase = (VOID )((UINTN)SecCoreData->PeiTemporaryRamBase + Index sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
1921695e	386	SecCoreData->PeiTemporaryRamSize = SecCoreData->PeiTemporaryRamSize - Index * sizeof (EFI_PEI_PPI_DESCRIPTOR);\r
9e9ca210 SZ	387	//\r
	388	// Adjust the Base and Size to be 8-byte aligned as HOB which has 8byte aligned requirement\r
	389	// will be built based on them in PEI phase.\r
	390	//\r
053e878b	391	SecCoreData->PeiTemporaryRamBase = (VOID *)(((UINTN)SecCoreData->PeiTemporaryRamBase + 7) & ~0x07);\r
59d3fad3	392	SecCoreData->PeiTemporaryRamSize &= ~(UINTN)0x07;\r
e93bc630 OI	393	DEBUG ((\r
	394	DEBUG_INFO,\r
	395	"%a() PeiTemporaryRamBase: 0x%x, PeiTemporaryRamSize: 0x%x\n",\r
	396	__FUNCTION__,\r
	397	SecCoreData->PeiTemporaryRamBase,\r
	398	SecCoreData->PeiTemporaryRamSize\r
	399	));\r
1921695e MK	400	} else {\r
	401	//\r
	402	// No addition PPI, PpiList directly point to the common PPI list.\r
	403	//\r
	404	PpiList = &mPeiSecPlatformInformationPpi[0];\r
	405	}\r
	406	\r
af34c106 JF	407	DEBUG ((\r
af34c106 JF	408	DEBUG_INFO,\r
ec16deea	409	"%a() Stack Base: 0x%p, Stack Size: 0x%x\n",\r
af34c106 JF	410	__FUNCTION__,\r
af34c106 JF	411	SecCoreData->StackBase,\r
053e878b	412	(UINT32)SecCoreData->StackSize\r
af34c106 JF	413	));\r
af34c106 JF	414	\r
1921695e MK	415	//\r
	416	// Report Status Code to indicate transferring to PEI core\r
	417	//\r
	418	REPORT_STATUS_CODE (\r
	419	EFI_PROGRESS_CODE,\r
	420	EFI_SOFTWARE_SEC \| EFI_SW_SEC_PC_HANDOFF_TO_NEXT\r
	421	);\r
	422	\r
	423	//\r
	424	// Transfer the control to the PEI core\r
	425	//\r
	426	ASSERT (PeiCoreEntryPoint != NULL);\r
053e878b	427	(*PeiCoreEntryPoint)(SecCoreData, PpiList);\r
1921695e MK	428	\r
	429	//\r
	430	// Should not come here.\r
	431	//\r
61257251	432	UNREACHABLE ();\r
1921695e MK	433	}\r
	434	\r
	435	/**\r
	436	TemporaryRamDone() disables the use of Temporary RAM. If present, this service is invoked\r
	437	by the PEI Foundation after the EFI_PEI_PERMANANT_MEMORY_INSTALLED_PPI is installed.\r
	438	\r
	439	@retval EFI_SUCCESS Use of Temporary RAM was disabled.\r
	440	@retval EFI_INVALID_PARAMETER Temporary RAM could not be disabled.\r
	441	\r
	442	**/\r
	443	EFI_STATUS\r
	444	EFIAPI\r
	445	SecTemporaryRamDone (\r
	446	VOID\r
	447	)\r
	448	{\r
053e878b MK	449	EFI_STATUS Status;\r
	450	EFI_STATUS Status2;\r
	451	UINTN Index;\r
	452	BOOLEAN State;\r
	453	EFI_PEI_PPI_DESCRIPTOR *PeiPpiDescriptor;\r
	454	REPUBLISH_SEC_PPI_PPI *RepublishSecPpiPpi;\r
1921695e	455	\r
8a5b8cef JF	456	//\r
	457	// Republish Sec Platform Information(2) PPI\r
	458	//\r
	459	RepublishSecPlatformInformationPpi ();\r
	460	\r
479613bd MK	461	//\r
	462	// Re-install SEC PPIs using a PEIM produced service if published\r
	463	//\r
	464	for (Index = 0, Status = EFI_SUCCESS; Status == EFI_SUCCESS; Index++) {\r
	465	Status = PeiServicesLocatePpi (\r
	466	&gRepublishSecPpiPpiGuid,\r
	467	Index,\r
	468	&PeiPpiDescriptor,\r
053e878b	469	(VOID **)&RepublishSecPpiPpi\r
479613bd MK	470	);\r
	471	if (!EFI_ERROR (Status)) {\r
	472	DEBUG ((DEBUG_INFO, "Calling RepublishSecPpi instance %d.\n", Index));\r
	473	Status2 = RepublishSecPpiPpi->RepublishSecPpis ();\r
	474	ASSERT_EFI_ERROR (Status2);\r
	475	}\r
	476	}\r
	477	\r
1921695e MK	478	//\r
	479	// Migrate DebugAgentContext.\r
	480	//\r
	481	InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC, NULL, NULL);\r
	482	\r
	483	//\r
	484	// Disable interrupts and save current interrupt state\r
	485	//\r
479613bd	486	State = SaveAndDisableInterrupts ();\r
1921695e	487	\r
f6ec1dd3 GJ	488	//\r
	489	// Migrate GDT before NEM near down\r
	490	//\r
	491	if (PcdGetBool (PcdMigrateTemporaryRamFirmwareVolumes)) {\r
	492	Status = MigrateGdt ();\r
	493	ASSERT_EFI_ERROR (Status);\r
	494	}\r
	495	\r
1921695e MK	496	//\r
	497	// Disable Temporary RAM after Stack and Heap have been migrated at this point.\r
	498	//\r
	499	SecPlatformDisableTemporaryMemory ();\r
	500	\r
	501	//\r
	502	// Restore original interrupt state\r
	503	//\r
	504	SetInterruptState (State);\r
	505	\r
	506	return EFI_SUCCESS;\r
	507	}\r