[mirror_edk2.git] / UefiPayloadPkg / UefiPayloadEntry / AcpiTable.c

/** @file\r
\r
\r
  Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "UefiPayloadEntry.h"\r
\r
/**\r
  Find the board related info from ACPI table\r
\r
  @param  AcpiTableBase          ACPI table start address in memory\r
  @param  AcpiBoardInfo          Pointer to the acpi board info strucutre\r
\r
  @retval RETURN_SUCCESS     Successfully find out all the required information.\r
  @retval RETURN_NOT_FOUND   Failed to find the required info.\r
\r
**/\r
RETURN_STATUS\r
ParseAcpiInfo (\r
  IN   UINT64           AcpiTableBase,\r
  OUT  ACPI_BOARD_INFO  *AcpiBoardInfo\r
  )\r
{\r
  EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER                                           *Rsdp;\r
  EFI_ACPI_DESCRIPTION_HEADER                                                            *Rsdt;\r
  UINT32                                                                                 *Entry32;\r
  UINTN                                                                                  Entry32Num;\r
  EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE                                              *Fadt;\r
  EFI_ACPI_DESCRIPTION_HEADER                                                            *Xsdt;\r
  UINT64                                                                                 *Entry64;\r
  UINTN                                                                                  Entry64Num;\r
  UINTN                                                                                  Idx;\r
  UINT32                                                                                 *Signature;\r
  EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_BASE_ADDRESS_TABLE_HEADER                         *MmCfgHdr;\r
  EFI_ACPI_MEMORY_MAPPED_ENHANCED_CONFIGURATION_SPACE_BASE_ADDRESS_ALLOCATION_STRUCTURE  *MmCfgBase;\r
\r
  Rsdp = (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *)(UINTN)AcpiTableBase;\r
  DEBUG ((DEBUG_INFO, "Rsdp at 0x%p\n", Rsdp));\r
  DEBUG ((DEBUG_INFO, "Rsdt at 0x%x, Xsdt at 0x%lx\n", Rsdp->RsdtAddress, Rsdp->XsdtAddress));\r
\r
  //\r
  // Search Rsdt First\r
  //\r
  Fadt     = NULL;\r
  MmCfgHdr = NULL;\r
  Rsdt     = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)(Rsdp->RsdtAddress);\r
  if (Rsdt != NULL) {\r
    Entry32    = (UINT32 *)(Rsdt + 1);\r
    Entry32Num = (Rsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) >> 2;\r
    for (Idx = 0; Idx < Entry32Num; Idx++) {\r
      Signature = (UINT32 *)(UINTN)Entry32[Idx];\r
      if (*Signature == EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {\r
        Fadt = (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)Signature;\r
        DEBUG ((DEBUG_INFO, "Found Fadt in Rsdt\n"));\r
      }\r
\r
      if (*Signature == EFI_ACPI_5_0_PCI_EXPRESS_MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ADDRESS_DESCRIPTION_TABLE_SIGNATURE) {\r
        MmCfgHdr = (EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_BASE_ADDRESS_TABLE_HEADER *)Signature;\r
        DEBUG ((DEBUG_INFO, "Found MM config address in Rsdt\n"));\r
      }\r
\r
      if ((Fadt != NULL) && (MmCfgHdr != NULL)) {\r
        goto Done;\r
      }\r
    }\r
  }\r
\r
  //\r
  // Search Xsdt Second\r
  //\r
  Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)(Rsdp->XsdtAddress);\r
  if (Xsdt != NULL) {\r
    Entry64    = (UINT64 *)(Xsdt + 1);\r
    Entry64Num = (Xsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) >> 3;\r
    for (Idx = 0; Idx < Entry64Num; Idx++) {\r
      Signature = (UINT32 *)(UINTN)Entry64[Idx];\r
      if (*Signature == EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {\r
        Fadt = (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)Signature;\r
        DEBUG ((DEBUG_INFO, "Found Fadt in Xsdt\n"));\r
      }\r
\r
      if (*Signature == EFI_ACPI_5_0_PCI_EXPRESS_MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ADDRESS_DESCRIPTION_TABLE_SIGNATURE) {\r
        MmCfgHdr = (EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_BASE_ADDRESS_TABLE_HEADER *)Signature;\r
        DEBUG ((DEBUG_INFO, "Found MM config address in Xsdt\n"));\r
      }\r
\r
      if ((Fadt != NULL) && (MmCfgHdr != NULL)) {\r
        goto Done;\r
      }\r
    }\r
  }\r
\r
  if (Fadt == NULL) {\r
    return RETURN_NOT_FOUND;\r
  }\r
\r
Done:\r
\r
  AcpiBoardInfo->PmCtrlRegBase   = Fadt->Pm1aCntBlk;\r
  AcpiBoardInfo->PmTimerRegBase  = Fadt->PmTmrBlk;\r
  AcpiBoardInfo->ResetRegAddress = Fadt->ResetReg.Address;\r
  AcpiBoardInfo->ResetValue      = Fadt->ResetValue;\r
  AcpiBoardInfo->PmEvtBase       = Fadt->Pm1aEvtBlk;\r
  AcpiBoardInfo->PmGpeEnBase     = Fadt->Gpe0Blk + Fadt->Gpe0BlkLen / 2;\r
\r
  if (MmCfgHdr != NULL) {\r
    MmCfgBase                      = (EFI_ACPI_MEMORY_MAPPED_ENHANCED_CONFIGURATION_SPACE_BASE_ADDRESS_ALLOCATION_STRUCTURE *)((UINT8 *)MmCfgHdr + sizeof (*MmCfgHdr));\r
    AcpiBoardInfo->PcieBaseAddress = MmCfgBase->BaseAddress;\r
    AcpiBoardInfo->PcieBaseSize    = (MmCfgBase->EndBusNumber + 1 - MmCfgBase->StartBusNumber) * 4096 * 32 * 8;\r
  } else {\r
    AcpiBoardInfo->PcieBaseAddress = 0;\r
    AcpiBoardInfo->PcieBaseSize    = 0;\r
  }\r
\r
  DEBUG ((DEBUG_INFO, "PmCtrl  Reg 0x%lx\n", AcpiBoardInfo->PmCtrlRegBase));\r
  DEBUG ((DEBUG_INFO, "PmTimer Reg 0x%lx\n", AcpiBoardInfo->PmTimerRegBase));\r
  DEBUG ((DEBUG_INFO, "Reset   Reg 0x%lx\n", AcpiBoardInfo->ResetRegAddress));\r
  DEBUG ((DEBUG_INFO, "Reset   Value 0x%x\n", AcpiBoardInfo->ResetValue));\r
  DEBUG ((DEBUG_INFO, "PmEvt   Reg 0x%lx\n", AcpiBoardInfo->PmEvtBase));\r
  DEBUG ((DEBUG_INFO, "PmGpeEn Reg 0x%lx\n", AcpiBoardInfo->PmGpeEnBase));\r
  DEBUG ((DEBUG_INFO, "PcieBaseAddr 0x%lx\n", AcpiBoardInfo->PcieBaseAddress));\r
  DEBUG ((DEBUG_INFO, "PcieBaseSize 0x%lx\n", AcpiBoardInfo->PcieBaseSize));\r
\r
  //\r
  // Verify values for proper operation\r
  //\r
  ASSERT (Fadt->Pm1aCntBlk != 0);\r
  ASSERT (Fadt->PmTmrBlk != 0);\r
  ASSERT (Fadt->ResetReg.Address != 0);\r
  ASSERT (Fadt->Pm1aEvtBlk != 0);\r
  ASSERT (Fadt->Gpe0Blk != 0);\r
\r
  DEBUG_CODE_BEGIN ();\r
  BOOLEAN  SciEnabled;\r
\r
  //\r
  // Check the consistency of SCI enabling\r
  //\r
\r
  //\r
  // Get SCI_EN value\r
  //\r
  if (Fadt->Pm1CntLen == 4) {\r
    SciEnabled = (IoRead32 (Fadt->Pm1aCntBlk) & BIT0) ? TRUE : FALSE;\r
  } else {\r
    //\r
    // if (Pm1CntLen == 2), use 16 bit IO read;\r
    // if (Pm1CntLen != 2 && Pm1CntLen != 4), use 16 bit IO read as a fallback\r
    //\r
    SciEnabled = (IoRead16 (Fadt->Pm1aCntBlk) & BIT0) ? TRUE : FALSE;\r
  }\r
\r
  if (!(Fadt->Flags & EFI_ACPI_5_0_HW_REDUCED_ACPI) &&\r
      (Fadt->SmiCmd == 0) &&\r
      !SciEnabled)\r
  {\r
    //\r
    // The ACPI enabling status is inconsistent: SCI is not enabled but ACPI\r
    // table does not provide a means to enable it through FADT->SmiCmd\r
    //\r
    DEBUG ((\r
      DEBUG_ERROR,\r
      "ERROR: The ACPI enabling status is inconsistent: SCI is not"\r
      " enabled but the ACPI table does not provide a means to enable it through FADT->SmiCmd."\r
      " This may cause issues in OS.\n"\r
      ));\r
  }\r
\r
  DEBUG_CODE_END ();\r
\r
  return RETURN_SUCCESS;\r
}\r
\r
/**\r
  Build ACPI board info HOB using infomation from ACPI table\r
\r
  @param  AcpiTableBase      ACPI table start address in memory\r
\r
  @retval  A pointer to ACPI board HOB ACPI_BOARD_INFO. Null if build HOB failure.\r
**/\r
ACPI_BOARD_INFO *\r
BuildHobFromAcpi (\r
  IN   UINT64  AcpiTableBase\r
  )\r
{\r
  EFI_STATUS       Status;\r
  ACPI_BOARD_INFO  AcpiBoardInfo;\r
  ACPI_BOARD_INFO  *NewAcpiBoardInfo;\r
\r
  NewAcpiBoardInfo = NULL;\r
  Status           = ParseAcpiInfo (AcpiTableBase, &AcpiBoardInfo);\r
  ASSERT_EFI_ERROR (Status);\r
  if (!EFI_ERROR (Status)) {\r
    NewAcpiBoardInfo = BuildGuidHob (&gUefiAcpiBoardInfoGuid, sizeof (ACPI_BOARD_INFO));\r
    ASSERT (NewAcpiBoardInfo != NULL);\r
    CopyMem (NewAcpiBoardInfo, &AcpiBoardInfo, sizeof (ACPI_BOARD_INFO));\r
    DEBUG ((DEBUG_INFO, "Create acpi board info guid hob\n"));\r
  }\r
\r
  return NewAcpiBoardInfo;\r
}\r
Commit	Line	Data
cc5a6726 GD	1	/** @file\r
	2	\r
	3	\r
	4	Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>\r
	5	\r
	6	SPDX-License-Identifier: BSD-2-Clause-Patent\r
	7	\r
	8	**/\r
	9	\r
	10	#include "UefiPayloadEntry.h"\r
	11	\r
cc5a6726 GD	12	/**\r
	13	Find the board related info from ACPI table\r
	14	\r
	15	@param AcpiTableBase ACPI table start address in memory\r
	16	@param AcpiBoardInfo Pointer to the acpi board info strucutre\r
	17	\r
	18	@retval RETURN_SUCCESS Successfully find out all the required information.\r
	19	@retval RETURN_NOT_FOUND Failed to find the required info.\r
	20	\r
	21	**/\r
	22	RETURN_STATUS\r
	23	ParseAcpiInfo (\r
e5efcf8b MK	24	IN UINT64 AcpiTableBase,\r
e5efcf8b MK	25	OUT ACPI_BOARD_INFO *AcpiBoardInfo\r
cc5a6726 GD	26	)\r
cc5a6726 GD	27	{\r
e5efcf8b MK	28	EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp;\r
	29	EFI_ACPI_DESCRIPTION_HEADER *Rsdt;\r
	30	UINT32 *Entry32;\r
	31	UINTN Entry32Num;\r
	32	EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt;\r
	33	EFI_ACPI_DESCRIPTION_HEADER *Xsdt;\r
	34	UINT64 *Entry64;\r
	35	UINTN Entry64Num;\r
	36	UINTN Idx;\r
	37	UINT32 *Signature;\r
	38	EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_BASE_ADDRESS_TABLE_HEADER *MmCfgHdr;\r
	39	EFI_ACPI_MEMORY_MAPPED_ENHANCED_CONFIGURATION_SPACE_BASE_ADDRESS_ALLOCATION_STRUCTURE *MmCfgBase;\r
cc5a6726 GD	40	\r
	41	Rsdp = (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *)(UINTN)AcpiTableBase;\r
	42	DEBUG ((DEBUG_INFO, "Rsdp at 0x%p\n", Rsdp));\r
	43	DEBUG ((DEBUG_INFO, "Rsdt at 0x%x, Xsdt at 0x%lx\n", Rsdp->RsdtAddress, Rsdp->XsdtAddress));\r
	44	\r
	45	//\r
	46	// Search Rsdt First\r
	47	//\r
	48	Fadt = NULL;\r
	49	MmCfgHdr = NULL;\r
	50	Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)(Rsdp->RsdtAddress);\r
	51	if (Rsdt != NULL) {\r
e5efcf8b MK	52	Entry32 = (UINT32 *)(Rsdt + 1);\r
e5efcf8b MK	53	Entry32Num = (Rsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) >> 2;\r
cc5a6726 GD	54	for (Idx = 0; Idx < Entry32Num; Idx++) {\r
	55	Signature = (UINT32 *)(UINTN)Entry32[Idx];\r
	56	if (*Signature == EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {\r
	57	Fadt = (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)Signature;\r
	58	DEBUG ((DEBUG_INFO, "Found Fadt in Rsdt\n"));\r
	59	}\r
	60	\r
	61	if (*Signature == EFI_ACPI_5_0_PCI_EXPRESS_MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ADDRESS_DESCRIPTION_TABLE_SIGNATURE) {\r
	62	MmCfgHdr = (EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_BASE_ADDRESS_TABLE_HEADER *)Signature;\r
	63	DEBUG ((DEBUG_INFO, "Found MM config address in Rsdt\n"));\r
	64	}\r
	65	\r
	66	if ((Fadt != NULL) && (MmCfgHdr != NULL)) {\r
	67	goto Done;\r
	68	}\r
	69	}\r
	70	}\r
	71	\r
	72	//\r
	73	// Search Xsdt Second\r
	74	//\r
e5efcf8b	75	Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)(Rsdp->XsdtAddress);\r
cc5a6726	76	if (Xsdt != NULL) {\r
e5efcf8b MK	77	Entry64 = (UINT64 *)(Xsdt + 1);\r
e5efcf8b MK	78	Entry64Num = (Xsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) >> 3;\r
cc5a6726 GD	79	for (Idx = 0; Idx < Entry64Num; Idx++) {\r
	80	Signature = (UINT32 *)(UINTN)Entry64[Idx];\r
	81	if (*Signature == EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {\r
	82	Fadt = (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)Signature;\r
	83	DEBUG ((DEBUG_INFO, "Found Fadt in Xsdt\n"));\r
	84	}\r
	85	\r
	86	if (*Signature == EFI_ACPI_5_0_PCI_EXPRESS_MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ADDRESS_DESCRIPTION_TABLE_SIGNATURE) {\r
	87	MmCfgHdr = (EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_BASE_ADDRESS_TABLE_HEADER *)Signature;\r
	88	DEBUG ((DEBUG_INFO, "Found MM config address in Xsdt\n"));\r
	89	}\r
	90	\r
	91	if ((Fadt != NULL) && (MmCfgHdr != NULL)) {\r
	92	goto Done;\r
	93	}\r
	94	}\r
	95	}\r
	96	\r
	97	if (Fadt == NULL) {\r
	98	return RETURN_NOT_FOUND;\r
	99	}\r
	100	\r
	101	Done:\r
	102	\r
	103	AcpiBoardInfo->PmCtrlRegBase = Fadt->Pm1aCntBlk;\r
	104	AcpiBoardInfo->PmTimerRegBase = Fadt->PmTmrBlk;\r
	105	AcpiBoardInfo->ResetRegAddress = Fadt->ResetReg.Address;\r
	106	AcpiBoardInfo->ResetValue = Fadt->ResetValue;\r
	107	AcpiBoardInfo->PmEvtBase = Fadt->Pm1aEvtBlk;\r
	108	AcpiBoardInfo->PmGpeEnBase = Fadt->Gpe0Blk + Fadt->Gpe0BlkLen / 2;\r
	109	\r
	110	if (MmCfgHdr != NULL) {\r
e5efcf8b	111	MmCfgBase = (EFI_ACPI_MEMORY_MAPPED_ENHANCED_CONFIGURATION_SPACE_BASE_ADDRESS_ALLOCATION_STRUCTURE )((UINT8 )MmCfgHdr + sizeof (*MmCfgHdr));\r
cc5a6726	112	AcpiBoardInfo->PcieBaseAddress = MmCfgBase->BaseAddress;\r
e5efcf8b	113	AcpiBoardInfo->PcieBaseSize = (MmCfgBase->EndBusNumber + 1 - MmCfgBase->StartBusNumber) * 4096 * 32 * 8;\r
cc5a6726 GD	114	} else {\r
cc5a6726 GD	115	AcpiBoardInfo->PcieBaseAddress = 0;\r
e5efcf8b	116	AcpiBoardInfo->PcieBaseSize = 0;\r
cc5a6726	117	}\r
e5efcf8b MK	118	\r
	119	DEBUG ((DEBUG_INFO, "PmCtrl Reg 0x%lx\n", AcpiBoardInfo->PmCtrlRegBase));\r
	120	DEBUG ((DEBUG_INFO, "PmTimer Reg 0x%lx\n", AcpiBoardInfo->PmTimerRegBase));\r
	121	DEBUG ((DEBUG_INFO, "Reset Reg 0x%lx\n", AcpiBoardInfo->ResetRegAddress));\r
cc5a6726	122	DEBUG ((DEBUG_INFO, "Reset Value 0x%x\n", AcpiBoardInfo->ResetValue));\r
e5efcf8b MK	123	DEBUG ((DEBUG_INFO, "PmEvt Reg 0x%lx\n", AcpiBoardInfo->PmEvtBase));\r
e5efcf8b MK	124	DEBUG ((DEBUG_INFO, "PmGpeEn Reg 0x%lx\n", AcpiBoardInfo->PmGpeEnBase));\r
cc5a6726 GD	125	DEBUG ((DEBUG_INFO, "PcieBaseAddr 0x%lx\n", AcpiBoardInfo->PcieBaseAddress));\r
	126	DEBUG ((DEBUG_INFO, "PcieBaseSize 0x%lx\n", AcpiBoardInfo->PcieBaseSize));\r
	127	\r
	128	//\r
	129	// Verify values for proper operation\r
	130	//\r
e5efcf8b MK	131	ASSERT (Fadt->Pm1aCntBlk != 0);\r
	132	ASSERT (Fadt->PmTmrBlk != 0);\r
	133	ASSERT (Fadt->ResetReg.Address != 0);\r
	134	ASSERT (Fadt->Pm1aEvtBlk != 0);\r
	135	ASSERT (Fadt->Gpe0Blk != 0);\r
cc5a6726 GD	136	\r
cc5a6726 GD	137	DEBUG_CODE_BEGIN ();\r
e5efcf8b MK	138	BOOLEAN SciEnabled;\r
	139	\r
	140	//\r
	141	// Check the consistency of SCI enabling\r
	142	//\r
cc5a6726	143	\r
e5efcf8b MK	144	//\r
	145	// Get SCI_EN value\r
	146	//\r
	147	if (Fadt->Pm1CntLen == 4) {\r
	148	SciEnabled = (IoRead32 (Fadt->Pm1aCntBlk) & BIT0) ? TRUE : FALSE;\r
	149	} else {\r
cc5a6726	150	//\r
e5efcf8b MK	151	// if (Pm1CntLen == 2), use 16 bit IO read;\r
e5efcf8b MK	152	// if (Pm1CntLen != 2 && Pm1CntLen != 4), use 16 bit IO read as a fallback\r
cc5a6726	153	//\r
e5efcf8b MK	154	SciEnabled = (IoRead16 (Fadt->Pm1aCntBlk) & BIT0) ? TRUE : FALSE;\r
e5efcf8b MK	155	}\r
cc5a6726	156	\r
e5efcf8b MK	157	if (!(Fadt->Flags & EFI_ACPI_5_0_HW_REDUCED_ACPI) &&\r
	158	(Fadt->SmiCmd == 0) &&\r
	159	!SciEnabled)\r
	160	{\r
cc5a6726	161	//\r
e5efcf8b MK	162	// The ACPI enabling status is inconsistent: SCI is not enabled but ACPI\r
e5efcf8b MK	163	// table does not provide a means to enable it through FADT->SmiCmd\r
cc5a6726	164	//\r
e5efcf8b MK	165	DEBUG ((\r
	166	DEBUG_ERROR,\r
	167	"ERROR: The ACPI enabling status is inconsistent: SCI is not"\r
	168	" enabled but the ACPI table does not provide a means to enable it through FADT->SmiCmd."\r
	169	" This may cause issues in OS.\n"\r
	170	));\r
	171	}\r
cc5a6726	172	\r
cc5a6726 GD	173	DEBUG_CODE_END ();\r
	174	\r
	175	return RETURN_SUCCESS;\r
	176	}\r
	177	\r
cc5a6726 GD	178	/**\r
	179	Build ACPI board info HOB using infomation from ACPI table\r
	180	\r
	181	@param AcpiTableBase ACPI table start address in memory\r
	182	\r
	183	@retval A pointer to ACPI board HOB ACPI_BOARD_INFO. Null if build HOB failure.\r
	184	**/\r
	185	ACPI_BOARD_INFO *\r
	186	BuildHobFromAcpi (\r
e5efcf8b	187	IN UINT64 AcpiTableBase\r
cc5a6726 GD	188	)\r
cc5a6726 GD	189	{\r
e5efcf8b MK	190	EFI_STATUS Status;\r
	191	ACPI_BOARD_INFO AcpiBoardInfo;\r
	192	ACPI_BOARD_INFO *NewAcpiBoardInfo;\r
cc5a6726 GD	193	\r
cc5a6726 GD	194	NewAcpiBoardInfo = NULL;\r
e5efcf8b	195	Status = ParseAcpiInfo (AcpiTableBase, &AcpiBoardInfo);\r
cc5a6726 GD	196	ASSERT_EFI_ERROR (Status);\r
	197	if (!EFI_ERROR (Status)) {\r
	198	NewAcpiBoardInfo = BuildGuidHob (&gUefiAcpiBoardInfoGuid, sizeof (ACPI_BOARD_INFO));\r
	199	ASSERT (NewAcpiBoardInfo != NULL);\r
	200	CopyMem (NewAcpiBoardInfo, &AcpiBoardInfo, sizeof (ACPI_BOARD_INFO));\r
	201	DEBUG ((DEBUG_INFO, "Create acpi board info guid hob\n"));\r
	202	}\r
e5efcf8b	203	\r
cc5a6726 GD	204	return NewAcpiBoardInfo;\r
cc5a6726 GD	205	}\r