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

/** @file\r
  C functions in SEC\r
\r
  Copyright (c) 2008 - 2015, Intel Corporation. All rights reserved.<BR>\r
  This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\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
    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
\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
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)(0x100000000ULL - (UINTN) BootFirmwareVolume);\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
/**\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
  SecCoreData   = (EFI_SEC_PEI_HAND_OFF *) Context;\r
  AllSecPpiList = (EFI_PEI_PPI_DESCRIPTOR *) SecCoreData->PeiTemporaryRamBase;\r
  //\r
  // Find Pei Core entry point. It will report SEC and Pei Core debug information if remote debug\r
  // is enabled.\r
  //\r
  FindAndReportEntryPoints ((EFI_FIRMWARE_VOLUME_HEADER *) SecCoreData->BootFirmwareVolumeBase, &PeiCoreEntryPoint);\r
  if (PeiCoreEntryPoint == NULL)\r
  {\r
    CpuDeadLoop ();\r
  }\r
\r
  //\r
  // Perform platform specific initialization before entering PeiCore.\r
  //\r
  PpiList = SecPlatformMain (SecCoreData);\r
  if (PpiList != NULL) {\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
  } else {\r
    //\r
    // No addition PPI, PpiList directly point to the common PPI list.\r
    //\r
    PpiList = &mPeiSecPlatformInformationPpi[0];\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
  BOOLEAN  State;\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
1921695e MK	1	/** @file\r
	2	C functions in SEC\r
	3	\r
	4	Copyright (c) 2008 - 2015, Intel Corporation. All rights reserved.<BR>\r
	5	This program and the accompanying materials\r
	6	are licensed and made available under the terms and conditions of the BSD License\r
	7	which accompanies this distribution. The full text of the license may be found at\r
	8	http://opensource.org/licenses/bsd-license.php\r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	12	\r
	13	**/\r
	14	\r
	15	#include "SecMain.h"\r
	16	\r
	17	EFI_PEI_TEMPORARY_RAM_DONE_PPI gSecTemporaryRamDonePpi = {\r
	18	SecTemporaryRamDone\r
	19	};\r
	20	\r
	21	EFI_SEC_PLATFORM_INFORMATION_PPI mSecPlatformInformationPpi = { SecPlatformInformation };\r
	22	\r
	23	EFI_PEI_PPI_DESCRIPTOR mPeiSecPlatformInformationPpi[] = {\r
	24	{\r
	25	EFI_PEI_PPI_DESCRIPTOR_PPI,\r
	26	&gEfiTemporaryRamDonePpiGuid,\r
	27	&gSecTemporaryRamDonePpi\r
	28	},\r
	29	{\r
	30	(EFI_PEI_PPI_DESCRIPTOR_PPI \| EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
	31	&gEfiSecPlatformInformationPpiGuid,\r
	32	&mSecPlatformInformationPpi\r
	33	}\r
	34	};\r
	35	\r
	36	//\r
	37	// These are IDT entries pointing to 10:FFFFFFE4h.\r
	38	//\r
	39	UINT64 mIdtEntryTemplate = 0xffff8e000010ffe4ULL;\r
	40	\r
	41	/**\r
	42	Caller provided function to be invoked at the end of InitializeDebugAgent().\r
	43	\r
	44	Entry point to the C language phase of SEC. After the SEC assembly\r
	45	code has initialized some temporary memory and set up the stack,\r
	46	the control is transferred to this function.\r
	47	\r
	48	@param[in] Context The first input parameter of InitializeDebugAgent().\r
	49	\r
	50	**/\r
	51	VOID\r
61257251	52	NORETURN\r
1921695e MK	53	EFIAPI\r
	54	SecStartupPhase2(\r
	55	IN VOID *Context\r
	56	);\r
	57	\r
	58	/**\r
	59	\r
	60	Entry point to the C language phase of SEC. After the SEC assembly\r
	61	code has initialized some temporary memory and set up the stack,\r
	62	the control is transferred to this function.\r
	63	\r
	64	\r
	65	@param SizeOfRam Size of the temporary memory available for use.\r
	66	@param TempRamBase Base address of temporary ram\r
	67	@param BootFirmwareVolume Base address of the Boot Firmware Volume.\r
	68	**/\r
	69	VOID\r
	70	EFIAPI\r
	71	SecStartup (\r
	72	IN UINT32 SizeOfRam,\r
	73	IN UINT32 TempRamBase,\r
	74	IN VOID *BootFirmwareVolume\r
	75	)\r
	76	{\r
	77	EFI_SEC_PEI_HAND_OFF SecCoreData;\r
	78	IA32_DESCRIPTOR IdtDescriptor;\r
	79	SEC_IDT_TABLE IdtTableInStack;\r
	80	UINT32 Index;\r
	81	UINT32 PeiStackSize;\r
	82	EFI_STATUS Status;\r
	83	\r
	84	//\r
	85	// Report Status Code to indicate entering SEC core\r
	86	//\r
	87	REPORT_STATUS_CODE (\r
	88	EFI_PROGRESS_CODE,\r
	89	EFI_SOFTWARE_SEC \| EFI_SW_SEC_PC_ENTRY_POINT\r
	90	);\r
	91	\r
	92	PeiStackSize = PcdGet32 (PcdPeiTemporaryRamStackSize);\r
	93	if (PeiStackSize == 0) {\r
	94	PeiStackSize = (SizeOfRam >> 1);\r
	95	}\r
	96	\r
	97	ASSERT (PeiStackSize < SizeOfRam);\r
	98	\r
	99	//\r
	100	// Process all libraries constructor function linked to SecCore.\r
	101	//\r
	102	ProcessLibraryConstructorList ();\r
	103	\r
	104	//\r
	105	// Initialize floating point operating environment\r
	106	// to be compliant with UEFI spec.\r
	107	//\r
	108	InitializeFloatingPointUnits ();\r
	109	\r
	110	// \|-------------------\|---->\r
	111	// \|IDT Table \|\r
	112	// \|-------------------\|\r
	113	// \|PeiService Pointer \| PeiStackSize\r
	114	// \|-------------------\|\r
	115	// \| \|\r
	116	// \| Stack \|\r
117	// \|-------------------\|---->\r
118	// \| \|\r
119	// \| \|\r
120	// \| Heap \| PeiTemporayRamSize\r
121	// \| \|\r
122	// \| \|\r
123	// \|-------------------\|----> TempRamBase\r
124	\r
125	IdtTableInStack.PeiService = 0;\r
126	for (Index = 0; Index < SEC_IDT_ENTRY_COUNT; Index ++) {\r
127	CopyMem ((VOID)&IdtTableInStack.IdtTable[Index], (VOID)&mIdtEntryTemplate, sizeof (UINT64));\r
128	}\r
129	\r
130	IdtDescriptor.Base = (UINTN) &IdtTableInStack.IdtTable;\r
131	IdtDescriptor.Limit = (UINT16)(sizeof (IdtTableInStack.IdtTable) - 1);\r
132	\r
133	AsmWriteIdtr (&IdtDescriptor);\r
134	\r
135	//\r
136	// Setup the default exception handlers\r
137	//\r
138	Status = InitializeCpuExceptionHandlers (NULL);\r
139	ASSERT_EFI_ERROR (Status);\r
140	\r
141	//\r
142	// Update the base address and length of Pei temporary memory\r
143	//\r
144	SecCoreData.DataSize = (UINT16) sizeof (EFI_SEC_PEI_HAND_OFF);\r
145	SecCoreData.BootFirmwareVolumeBase = BootFirmwareVolume;\r
146	SecCoreData.BootFirmwareVolumeSize = (UINTN)(0x100000000ULL - (UINTN) BootFirmwareVolume);\r
147	SecCoreData.TemporaryRamBase = (VOID*)(UINTN) TempRamBase;\r
148	SecCoreData.TemporaryRamSize = SizeOfRam;\r
149	SecCoreData.PeiTemporaryRamBase = SecCoreData.TemporaryRamBase;\r
150	SecCoreData.PeiTemporaryRamSize = SizeOfRam - PeiStackSize;\r
151	SecCoreData.StackBase = (VOID*)(UINTN)(TempRamBase + SecCoreData.PeiTemporaryRamSize);\r
152	SecCoreData.StackSize = PeiStackSize;\r
153	\r
154	//\r
155	// Initialize Debug Agent to support source level debug in SEC/PEI phases before memory ready.\r
156	//\r
157	InitializeDebugAgent (DEBUG_AGENT_INIT_PREMEM_SEC, &SecCoreData, SecStartupPhase2);\r
158	}\r
159	\r
160	/**\r
161	Caller provided function to be invoked at the end of InitializeDebugAgent().\r
162	\r
163	Entry point to the C language phase of SEC. After the SEC assembly\r
164	code has initialized some temporary memory and set up the stack,\r
165	the control is transferred to this function.\r
166	\r
167	@param[in] Context The first input parameter of InitializeDebugAgent().\r
168	\r
169	**/\r
170	VOID\r
61257251	171	NORETURN\r
1921695e MK	172	EFIAPI\r
	173	SecStartupPhase2(\r
	174	IN VOID *Context\r
	175	)\r
	176	{\r
	177	EFI_SEC_PEI_HAND_OFF *SecCoreData;\r
	178	EFI_PEI_PPI_DESCRIPTOR *PpiList;\r
	179	UINT32 Index;\r
	180	EFI_PEI_PPI_DESCRIPTOR *AllSecPpiList;\r
	181	EFI_PEI_CORE_ENTRY_POINT PeiCoreEntryPoint;\r
	182	\r
	183	SecCoreData = (EFI_SEC_PEI_HAND_OFF *) Context;\r
	184	AllSecPpiList = (EFI_PEI_PPI_DESCRIPTOR *) SecCoreData->PeiTemporaryRamBase;\r
	185	//\r
	186	// Find Pei Core entry point. It will report SEC and Pei Core debug information if remote debug\r
	187	// is enabled.\r
	188	//\r
	189	FindAndReportEntryPoints ((EFI_FIRMWARE_VOLUME_HEADER *) SecCoreData->BootFirmwareVolumeBase, &PeiCoreEntryPoint);\r
	190	if (PeiCoreEntryPoint == NULL)\r
	191	{\r
	192	CpuDeadLoop ();\r
	193	}\r
	194	\r
	195	//\r
	196	// Perform platform specific initialization before entering PeiCore.\r
	197	//\r
	198	PpiList = SecPlatformMain (SecCoreData);\r
	199	if (PpiList != NULL) {\r
	200	//\r
	201	// Remove the terminal flag from the terminal PPI\r
	202	//\r
	203	CopyMem (AllSecPpiList, mPeiSecPlatformInformationPpi, sizeof (mPeiSecPlatformInformationPpi));\r
	204	Index = sizeof (mPeiSecPlatformInformationPpi) / sizeof (EFI_PEI_PPI_DESCRIPTOR) - 1;\r
	205	AllSecPpiList[Index].Flags = AllSecPpiList[Index].Flags & (~EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST);\r
	206	\r
	207	//\r
	208	// Append the platform additional PPI list\r
	209	//\r
	210	Index += 1;\r
	211	while (((PpiList->Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) != EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST)) {\r
	212	CopyMem (&AllSecPpiList[Index], PpiList, sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
	213	Index++;\r
	214	PpiList++;\r
	215	}\r
	216	\r
	217	//\r
	218	// Add the terminal PPI\r
	219	//\r
	220	CopyMem (&AllSecPpiList[Index ++], PpiList, sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
	221	\r
	222	//\r
	223	// Set PpiList to the total PPI\r
	224	//\r
	225	PpiList = AllSecPpiList;\r
	226	\r
	227	//\r
	228	// Adjust PEI TEMP RAM Range.\r
	229	//\r
	230	ASSERT (SecCoreData->PeiTemporaryRamSize > Index * sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
	231	SecCoreData->PeiTemporaryRamBase = (VOID )((UINTN) SecCoreData->PeiTemporaryRamBase + Index sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
	232	SecCoreData->PeiTemporaryRamSize = SecCoreData->PeiTemporaryRamSize - Index * sizeof (EFI_PEI_PPI_DESCRIPTOR);\r
	233	} else {\r
	234	//\r
	235	// No addition PPI, PpiList directly point to the common PPI list.\r
236	//\r
237	PpiList = &mPeiSecPlatformInformationPpi[0];\r
238	}\r
239	\r
240	//\r
241	// Report Status Code to indicate transferring to PEI core\r
242	//\r
243	REPORT_STATUS_CODE (\r
244	EFI_PROGRESS_CODE,\r
245	EFI_SOFTWARE_SEC \| EFI_SW_SEC_PC_HANDOFF_TO_NEXT\r
246	);\r
247	\r
248	//\r
249	// Transfer the control to the PEI core\r
250	//\r
251	ASSERT (PeiCoreEntryPoint != NULL);\r
252	(*PeiCoreEntryPoint) (SecCoreData, PpiList);\r
253	\r
254	//\r
255	// Should not come here.\r
256	//\r
61257251	257	UNREACHABLE ();\r
1921695e MK	258	}\r
	259	\r
	260	/**\r
	261	TemporaryRamDone() disables the use of Temporary RAM. If present, this service is invoked\r
	262	by the PEI Foundation after the EFI_PEI_PERMANANT_MEMORY_INSTALLED_PPI is installed.\r
	263	\r
	264	@retval EFI_SUCCESS Use of Temporary RAM was disabled.\r
	265	@retval EFI_INVALID_PARAMETER Temporary RAM could not be disabled.\r
	266	\r
	267	**/\r
	268	EFI_STATUS\r
	269	EFIAPI\r
	270	SecTemporaryRamDone (\r
	271	VOID\r
	272	)\r
	273	{\r
	274	BOOLEAN State;\r
	275	\r
	276	//\r
	277	// Migrate DebugAgentContext.\r
	278	//\r
	279	InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC, NULL, NULL);\r
	280	\r
	281	//\r
	282	// Disable interrupts and save current interrupt state\r
	283	//\r
	284	State = SaveAndDisableInterrupts();\r
	285	\r
	286	//\r
	287	// Disable Temporary RAM after Stack and Heap have been migrated at this point.\r
	288	//\r
	289	SecPlatformDisableTemporaryMemory ();\r
	290	\r
	291	//\r
	292	// Restore original interrupt state\r
	293	//\r
	294	SetInterruptState (State);\r
	295	\r
	296	return EFI_SUCCESS;\r
	297	}\r