[mirror_edk2.git] / OvmfPkg / AcpiPlatformDxe / Xen.c

/** @file\r
  OVMF ACPI Xen support\r
\r
  Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>\r
  Copyright (c) 2012, Bei Guan <gbtju85@gmail.com>\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "AcpiPlatform.h"\r
#include <Library/BaseLib.h>\r
\r
#define XEN_ACPI_PHYSICAL_ADDRESS         0x000EA020\r
#define XEN_BIOS_PHYSICAL_END             0x000FFFFF\r
\r
EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER  *XenAcpiRsdpStructurePtr = NULL;\r
\r
/**\r
  Get the address of Xen ACPI Root System Description Pointer (RSDP)\r
  structure.\r
\r
  @param  RsdpStructurePtr   Return pointer to RSDP structure\r
\r
  @return EFI_SUCCESS        Find Xen RSDP structure successfully.\r
  @return EFI_NOT_FOUND      Don't find Xen RSDP structure.\r
  @return EFI_ABORTED        Find Xen RSDP structure, but it's not integrated.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
GetXenAcpiRsdp (\r
  OUT   EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER   **RsdpPtr\r
  )\r
{\r
  EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER   *RsdpStructurePtr;\r
  UINT8                                          *XenAcpiPtr;\r
  UINT8                                          Sum;\r
  EFI_XEN_INFO                                   *XenInfo;\r
\r
  //\r
  // Detect the RSDP structure\r
  //\r
\r
  //\r
  // First look for PVH one\r
  //\r
  XenInfo = XenGetInfoHOB ();\r
  ASSERT (XenInfo != NULL);\r
  if (XenInfo->RsdpPvh != NULL) {\r
    DEBUG ((DEBUG_INFO, "%a: Use ACPI RSDP table at 0x%p\n",\r
      gEfiCallerBaseName, XenInfo->RsdpPvh));\r
    *RsdpPtr = XenInfo->RsdpPvh;\r
    return EFI_SUCCESS;\r
  }\r
\r
  //\r
  // Otherwise, look for the HVM one\r
  //\r
  for (XenAcpiPtr = (UINT8*)(UINTN) XEN_ACPI_PHYSICAL_ADDRESS;\r
       XenAcpiPtr < (UINT8*)(UINTN) XEN_BIOS_PHYSICAL_END;\r
       XenAcpiPtr += 0x10) {\r
\r
    RsdpStructurePtr = (EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER *)\r
                         (UINTN) XenAcpiPtr;\r
\r
    if (!AsciiStrnCmp ((CHAR8 *) &RsdpStructurePtr->Signature, "RSD PTR ", 8)) {\r
      //\r
      // RSDP ACPI 1.0 checksum for 1.0/2.0/3.0 table.\r
      // This is only the first 20 bytes of the structure\r
      //\r
      Sum = CalculateSum8 (\r
              (CONST UINT8 *)RsdpStructurePtr,\r
              sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER)\r
              );\r
      if (Sum != 0) {\r
        return EFI_ABORTED;\r
      }\r
\r
      if (RsdpStructurePtr->Revision >= 2) {\r
        //\r
        // RSDP ACPI 2.0/3.0 checksum, this is the entire table\r
        //\r
        Sum = CalculateSum8 (\r
                (CONST UINT8 *)RsdpStructurePtr,\r
                sizeof (EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER)\r
                );\r
        if (Sum != 0) {\r
          return EFI_ABORTED;\r
        }\r
      }\r
      *RsdpPtr = RsdpStructurePtr;\r
      return EFI_SUCCESS;\r
    }\r
  }\r
\r
  return EFI_NOT_FOUND;\r
}\r
\r
/**\r
  Get Xen Acpi tables from the RSDP structure. And installs Xen ACPI tables\r
  into the RSDT/XSDT using InstallAcpiTable. Some signature of the installed\r
  ACPI tables are: FACP, APIC, HPET, WAET, SSDT, FACS, DSDT.\r
\r
  @param  AcpiProtocol           Protocol instance pointer.\r
\r
  @return EFI_SUCCESS            The table was successfully inserted.\r
  @return EFI_INVALID_PARAMETER  Either AcpiTableBuffer is NULL, TableHandle is\r
                                 NULL, or AcpiTableBufferSize and the size\r
                                 field embedded in the ACPI table pointed to\r
                                 by AcpiTableBuffer are not in sync.\r
  @return EFI_OUT_OF_RESOURCES   Insufficient resources exist to complete the request.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
InstallXenTables (\r
  IN   EFI_ACPI_TABLE_PROTOCOL       *AcpiProtocol\r
  )\r
{\r
  EFI_STATUS                                       Status;\r
  UINTN                                            TableHandle;\r
\r
  EFI_ACPI_DESCRIPTION_HEADER                      *Rsdt;\r
  EFI_ACPI_DESCRIPTION_HEADER                      *Xsdt;\r
  VOID                                             *CurrentTableEntry;\r
  UINTN                                            CurrentTablePointer;\r
  EFI_ACPI_DESCRIPTION_HEADER                      *CurrentTable;\r
  UINTN                                            Index;\r
  UINTN                                            NumberOfTableEntries;\r
  EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE        *Fadt2Table;\r
  EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE        *Fadt1Table;\r
  EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE     *Facs2Table;\r
  EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE     *Facs1Table;\r
  EFI_ACPI_DESCRIPTION_HEADER                      *DsdtTable;\r
\r
  Fadt2Table  = NULL;\r
  Fadt1Table  = NULL;\r
  Facs2Table  = NULL;\r
  Facs1Table  = NULL;\r
  DsdtTable   = NULL;\r
  TableHandle = 0;\r
  NumberOfTableEntries = 0;\r
\r
  //\r
  // Try to find Xen ACPI tables\r
  //\r
  Status = GetXenAcpiRsdp (&XenAcpiRsdpStructurePtr);\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  //\r
  // If XSDT table is find, just install its tables.\r
  // Otherwise, try to find and install the RSDT tables.\r
  //\r
  if (XenAcpiRsdpStructurePtr->XsdtAddress) {\r
    //\r
    // Retrieve the addresses of XSDT and\r
    // calculate the number of its table entries.\r
    //\r
    Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN)\r
             XenAcpiRsdpStructurePtr->XsdtAddress;\r
    NumberOfTableEntries = (Xsdt->Length -\r
                             sizeof (EFI_ACPI_DESCRIPTION_HEADER)) /\r
                             sizeof (UINT64);\r
\r
    //\r
    // Install ACPI tables found in XSDT.\r
    //\r
    for (Index = 0; Index < NumberOfTableEntries; Index++) {\r
      //\r
      // Get the table entry from XSDT\r
      //\r
      CurrentTableEntry = (VOID *) ((UINT8 *) Xsdt +\r
                            sizeof (EFI_ACPI_DESCRIPTION_HEADER) +\r
                            Index * sizeof (UINT64));\r
      CurrentTablePointer = (UINTN) *(UINT64 *)CurrentTableEntry;\r
      CurrentTable = (EFI_ACPI_DESCRIPTION_HEADER *) CurrentTablePointer;\r
\r
      //\r
      // Install the XSDT tables\r
      //\r
      Status = InstallAcpiTable (\r
                 AcpiProtocol,\r
                 CurrentTable,\r
                 CurrentTable->Length,\r
                 &TableHandle\r
                 );\r
\r
      if (EFI_ERROR (Status)) {\r
        return Status;\r
      }\r
\r
      //\r
      // Get the FACS and DSDT table address from the table FADT\r
      //\r
      if (!AsciiStrnCmp ((CHAR8 *) &CurrentTable->Signature, "FACP", 4)) {\r
        Fadt2Table = (EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE *)\r
                       (UINTN) CurrentTablePointer;\r
        Facs2Table = (EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *)\r
                       (UINTN) Fadt2Table->FirmwareCtrl;\r
        DsdtTable  = (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN) Fadt2Table->Dsdt;\r
      }\r
    }\r
  }\r
  else if (XenAcpiRsdpStructurePtr->RsdtAddress) {\r
    //\r
    // Retrieve the addresses of RSDT and\r
    // calculate the number of its table entries.\r
    //\r
    Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN)\r
             XenAcpiRsdpStructurePtr->RsdtAddress;\r
    NumberOfTableEntries = (Rsdt->Length -\r
                             sizeof (EFI_ACPI_DESCRIPTION_HEADER)) /\r
                             sizeof (UINT32);\r
\r
    //\r
    // Install ACPI tables found in XSDT.\r
    //\r
    for (Index = 0; Index < NumberOfTableEntries; Index++) {\r
      //\r
      // Get the table entry from RSDT\r
      //\r
      CurrentTableEntry = (UINT32 *) ((UINT8 *) Rsdt +\r
                            sizeof (EFI_ACPI_DESCRIPTION_HEADER) +\r
                            Index * sizeof (UINT32));\r
      CurrentTablePointer = *(UINT32 *)CurrentTableEntry;\r
      CurrentTable = (EFI_ACPI_DESCRIPTION_HEADER *) CurrentTablePointer;\r
\r
      //\r
      // Install the RSDT tables\r
      //\r
      Status = InstallAcpiTable (\r
                 AcpiProtocol,\r
                 CurrentTable,\r
                 CurrentTable->Length,\r
                 &TableHandle\r
                 );\r
\r
      if (EFI_ERROR (Status)) {\r
        return Status;\r
      }\r
\r
      //\r
      // Get the FACS and DSDT table address from the table FADT\r
      //\r
      if (!AsciiStrnCmp ((CHAR8 *) &CurrentTable->Signature, "FACP", 4)) {\r
        Fadt1Table = (EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE *)\r
                       (UINTN) CurrentTablePointer;\r
        Facs1Table = (EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *)\r
                       (UINTN) Fadt1Table->FirmwareCtrl;\r
        DsdtTable  = (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN) Fadt1Table->Dsdt;\r
      }\r
    }\r
  }\r
\r
  //\r
  // Install the FACS table.\r
  //\r
  if (Fadt2Table) {\r
    //\r
    // FACS 2.0\r
    //\r
    Status = InstallAcpiTable (\r
               AcpiProtocol,\r
               Facs2Table,\r
               Facs2Table->Length,\r
               &TableHandle\r
               );\r
    if (EFI_ERROR (Status)) {\r
      return Status;\r
    }\r
  }\r
  else if (Fadt1Table) {\r
    //\r
    // FACS 1.0\r
    //\r
    Status = InstallAcpiTable (\r
               AcpiProtocol,\r
               Facs1Table,\r
               Facs1Table->Length,\r
               &TableHandle\r
               );\r
    if (EFI_ERROR (Status)) {\r
      return Status;\r
    }\r
  }\r
\r
  //\r
  // Install DSDT table. If we reached this point without finding the DSDT,\r
  // then we're out of sync with the hypervisor, and cannot continue.\r
  //\r
  if (DsdtTable == NULL) {\r
    DEBUG ((DEBUG_ERROR, "%a: no DSDT found\n", __FUNCTION__));\r
    ASSERT (FALSE);\r
    CpuDeadLoop ();\r
  }\r
\r
  Status = InstallAcpiTable (\r
             AcpiProtocol,\r
             DsdtTable,\r
             DsdtTable->Length,\r
             &TableHandle\r
             );\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
Commit	Line	Data
522203de	1	/** @file\r
377e758c	2	OVMF ACPI Xen support\r
522203de	3	\r
522203de	4	Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>\r
377e758c	5	Copyright (c) 2012, Bei Guan <gbtju85@gmail.com>\r
377e758c	6	\r
b26f0cf9	7	SPDX-License-Identifier: BSD-2-Clause-Patent\r
522203de	8	\r
4040754d	9	**/\r
522203de	10	\r
522203de	11	#include "AcpiPlatform.h"\r
4804ef49	12	#include <Library/BaseLib.h>\r
522203de	13	\r
377e758c	14	#define XEN_ACPI_PHYSICAL_ADDRESS 0x000EA020\r
	15	#define XEN_BIOS_PHYSICAL_END 0x000FFFFF\r
	16	\r
	17	EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER *XenAcpiRsdpStructurePtr = NULL;\r
	18	\r
377e758c	19	/**\r
	20	Get the address of Xen ACPI Root System Description Pointer (RSDP)\r
	21	structure.\r
522203de	22	\r
377e758c	23	@param RsdpStructurePtr Return pointer to RSDP structure\r
	24	\r
	25	@return EFI_SUCCESS Find Xen RSDP structure successfully.\r
	26	@return EFI_NOT_FOUND Don't find Xen RSDP structure.\r
	27	@return EFI_ABORTED Find Xen RSDP structure, but it's not integrated.\r
	28	\r
	29	**/\r
522203de	30	EFI_STATUS\r
522203de	31	EFIAPI\r
377e758c	32	GetXenAcpiRsdp (\r
377e758c	33	OUT EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER **RsdpPtr\r
522203de	34	)\r
522203de	35	{\r
377e758c	36	EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER *RsdpStructurePtr;\r
	37	UINT8 *XenAcpiPtr;\r
	38	UINT8 Sum;\r
2a4a6242	39	EFI_XEN_INFO *XenInfo;\r
377e758c	40	\r
	41	//\r
	42	// Detect the RSDP structure\r
	43	//\r
2a4a6242 AP	44	\r
	45	//\r
	46	// First look for PVH one\r
	47	//\r
	48	XenInfo = XenGetInfoHOB ();\r
	49	ASSERT (XenInfo != NULL);\r
	50	if (XenInfo->RsdpPvh != NULL) {\r
	51	DEBUG ((DEBUG_INFO, "%a: Use ACPI RSDP table at 0x%p\n",\r
	52	gEfiCallerBaseName, XenInfo->RsdpPvh));\r
	53	*RsdpPtr = XenInfo->RsdpPvh;\r
	54	return EFI_SUCCESS;\r
	55	}\r
	56	\r
	57	//\r
	58	// Otherwise, look for the HVM one\r
	59	//\r
377e758c	60	for (XenAcpiPtr = (UINT8*)(UINTN) XEN_ACPI_PHYSICAL_ADDRESS;\r
	61	XenAcpiPtr < (UINT8*)(UINTN) XEN_BIOS_PHYSICAL_END;\r
	62	XenAcpiPtr += 0x10) {\r
	63	\r
	64	RsdpStructurePtr = (EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER *)\r
	65	(UINTN) XenAcpiPtr;\r
	66	\r
	67	if (!AsciiStrnCmp ((CHAR8 *) &RsdpStructurePtr->Signature, "RSD PTR ", 8)) {\r
	68	//\r
	69	// RSDP ACPI 1.0 checksum for 1.0/2.0/3.0 table.\r
	70	// This is only the first 20 bytes of the structure\r
	71	//\r
4804ef49	72	Sum = CalculateSum8 (\r
4804ef49	73	(CONST UINT8 *)RsdpStructurePtr,\r
377e758c	74	sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER)\r
	75	);\r
	76	if (Sum != 0) {\r
	77	return EFI_ABORTED;\r
	78	}\r
	79	\r
	80	if (RsdpStructurePtr->Revision >= 2) {\r
	81	//\r
	82	// RSDP ACPI 2.0/3.0 checksum, this is the entire table\r
	83	//\r
4804ef49	84	Sum = CalculateSum8 (\r
4804ef49	85	(CONST UINT8 *)RsdpStructurePtr,\r
377e758c	86	sizeof (EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER)\r
	87	);\r
	88	if (Sum != 0) {\r
	89	return EFI_ABORTED;\r
	90	}\r
	91	}\r
	92	*RsdpPtr = RsdpStructurePtr;\r
	93	return EFI_SUCCESS;\r
	94	}\r
	95	}\r
	96	\r
	97	return EFI_NOT_FOUND;\r
	98	}\r
	99	\r
	100	/**\r
	101	Get Xen Acpi tables from the RSDP structure. And installs Xen ACPI tables\r
	102	into the RSDT/XSDT using InstallAcpiTable. Some signature of the installed\r
	103	ACPI tables are: FACP, APIC, HPET, WAET, SSDT, FACS, DSDT.\r
	104	\r
	105	@param AcpiProtocol Protocol instance pointer.\r
	106	\r
	107	@return EFI_SUCCESS The table was successfully inserted.\r
	108	@return EFI_INVALID_PARAMETER Either AcpiTableBuffer is NULL, TableHandle is\r
	109	NULL, or AcpiTableBufferSize and the size\r
	110	field embedded in the ACPI table pointed to\r
	111	by AcpiTableBuffer are not in sync.\r
	112	@return EFI_OUT_OF_RESOURCES Insufficient resources exist to complete the request.\r
	113	\r
	114	**/\r
	115	EFI_STATUS\r
	116	EFIAPI\r
	117	InstallXenTables (\r
	118	IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol\r
	119	)\r
	120	{\r
	121	EFI_STATUS Status;\r
	122	UINTN TableHandle;\r
	123	\r
	124	EFI_ACPI_DESCRIPTION_HEADER *Rsdt;\r
	125	EFI_ACPI_DESCRIPTION_HEADER *Xsdt;\r
	126	VOID *CurrentTableEntry;\r
	127	UINTN CurrentTablePointer;\r
	128	EFI_ACPI_DESCRIPTION_HEADER *CurrentTable;\r
	129	UINTN Index;\r
	130	UINTN NumberOfTableEntries;\r
	131	EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt2Table;\r
	132	EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt1Table;\r
	133	EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *Facs2Table;\r
	134	EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *Facs1Table;\r
	135	EFI_ACPI_DESCRIPTION_HEADER *DsdtTable;\r
	136	\r
	137	Fadt2Table = NULL;\r
	138	Fadt1Table = NULL;\r
	139	Facs2Table = NULL;\r
	140	Facs1Table = NULL;\r
	141	DsdtTable = NULL;\r
	142	TableHandle = 0;\r
	143	NumberOfTableEntries = 0;\r
	144	\r
	145	//\r
	146	// Try to find Xen ACPI tables\r
	147	//\r
	148	Status = GetXenAcpiRsdp (&XenAcpiRsdpStructurePtr);\r
	149	if (EFI_ERROR (Status)) {\r
150	return Status;\r
151	}\r
152	\r
153	//\r
4040754d	154	// If XSDT table is find, just install its tables.\r
377e758c	155	// Otherwise, try to find and install the RSDT tables.\r
	156	//\r
	157	if (XenAcpiRsdpStructurePtr->XsdtAddress) {\r
	158	//\r
4040754d	159	// Retrieve the addresses of XSDT and\r
377e758c	160	// calculate the number of its table entries.\r
	161	//\r
	162	Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN)\r
	163	XenAcpiRsdpStructurePtr->XsdtAddress;\r
	164	NumberOfTableEntries = (Xsdt->Length -\r
	165	sizeof (EFI_ACPI_DESCRIPTION_HEADER)) /\r
	166	sizeof (UINT64);\r
	167	\r
	168	//\r
	169	// Install ACPI tables found in XSDT.\r
	170	//\r
	171	for (Index = 0; Index < NumberOfTableEntries; Index++) {\r
	172	//\r
	173	// Get the table entry from XSDT\r
	174	//\r
	175	CurrentTableEntry = (VOID ) ((UINT8 ) Xsdt +\r
	176	sizeof (EFI_ACPI_DESCRIPTION_HEADER) +\r
	177	Index * sizeof (UINT64));\r
26af9aca	178	CurrentTablePointer = (UINTN) (UINT64 )CurrentTableEntry;\r
377e758c	179	CurrentTable = (EFI_ACPI_DESCRIPTION_HEADER *) CurrentTablePointer;\r
	180	\r
	181	//\r
	182	// Install the XSDT tables\r
	183	//\r
	184	Status = InstallAcpiTable (\r
	185	AcpiProtocol,\r
	186	CurrentTable,\r
	187	CurrentTable->Length,\r
	188	&TableHandle\r
	189	);\r
	190	\r
	191	if (EFI_ERROR (Status)) {\r
	192	return Status;\r
	193	}\r
	194	\r
	195	//\r
	196	// Get the FACS and DSDT table address from the table FADT\r
	197	//\r
	198	if (!AsciiStrnCmp ((CHAR8 *) &CurrentTable->Signature, "FACP", 4)) {\r
	199	Fadt2Table = (EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE *)\r
	200	(UINTN) CurrentTablePointer;\r
	201	Facs2Table = (EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *)\r
	202	(UINTN) Fadt2Table->FirmwareCtrl;\r
	203	DsdtTable = (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN) Fadt2Table->Dsdt;\r
	204	}\r
	205	}\r
	206	}\r
	207	else if (XenAcpiRsdpStructurePtr->RsdtAddress) {\r
	208	//\r
	209	// Retrieve the addresses of RSDT and\r
	210	// calculate the number of its table entries.\r
	211	//\r
	212	Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN)\r
	213	XenAcpiRsdpStructurePtr->RsdtAddress;\r
	214	NumberOfTableEntries = (Rsdt->Length -\r
4040754d	215	sizeof (EFI_ACPI_DESCRIPTION_HEADER)) /\r
377e758c	216	sizeof (UINT32);\r
	217	\r
	218	//\r
	219	// Install ACPI tables found in XSDT.\r
	220	//\r
	221	for (Index = 0; Index < NumberOfTableEntries; Index++) {\r
	222	//\r
	223	// Get the table entry from RSDT\r
	224	//\r
	225	CurrentTableEntry = (UINT32 ) ((UINT8 ) Rsdt +\r
	226	sizeof (EFI_ACPI_DESCRIPTION_HEADER) +\r
	227	Index * sizeof (UINT32));\r
	228	CurrentTablePointer = (UINT32 )CurrentTableEntry;\r
	229	CurrentTable = (EFI_ACPI_DESCRIPTION_HEADER *) CurrentTablePointer;\r
	230	\r
	231	//\r
	232	// Install the RSDT tables\r
	233	//\r
	234	Status = InstallAcpiTable (\r
	235	AcpiProtocol,\r
	236	CurrentTable,\r
	237	CurrentTable->Length,\r
	238	&TableHandle\r
	239	);\r
	240	\r
	241	if (EFI_ERROR (Status)) {\r
	242	return Status;\r
	243	}\r
	244	\r
	245	//\r
	246	// Get the FACS and DSDT table address from the table FADT\r
	247	//\r
	248	if (!AsciiStrnCmp ((CHAR8 *) &CurrentTable->Signature, "FACP", 4)) {\r
	249	Fadt1Table = (EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE *)\r
	250	(UINTN) CurrentTablePointer;\r
	251	Facs1Table = (EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *)\r
	252	(UINTN) Fadt1Table->FirmwareCtrl;\r
	253	DsdtTable = (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN) Fadt1Table->Dsdt;\r
	254	}\r
	255	}\r
	256	}\r
	257	\r
	258	//\r
	259	// Install the FACS table.\r
	260	//\r
	261	if (Fadt2Table) {\r
	262	//\r
	263	// FACS 2.0\r
	264	//\r
	265	Status = InstallAcpiTable (\r
	266	AcpiProtocol,\r
	267	Facs2Table,\r
	268	Facs2Table->Length,\r
	269	&TableHandle\r
	270	);\r
	271	if (EFI_ERROR (Status)) {\r
	272	return Status;\r
	273	}\r
	274	}\r
	275	else if (Fadt1Table) {\r
	276	//\r
	277	// FACS 1.0\r
	278	//\r
	279	Status = InstallAcpiTable (\r
280	AcpiProtocol,\r
281	Facs1Table,\r
282	Facs1Table->Length,\r
283	&TableHandle\r
284	);\r
285	if (EFI_ERROR (Status)) {\r
286	return Status;\r
287	}\r
288	}\r
289	\r
290	//\r
e3099174 LE	291	// Install DSDT table. If we reached this point without finding the DSDT,\r
e3099174 LE	292	// then we're out of sync with the hypervisor, and cannot continue.\r
377e758c	293	//\r
e3099174 LE	294	if (DsdtTable == NULL) {\r
	295	DEBUG ((DEBUG_ERROR, "%a: no DSDT found\n", __FUNCTION__));\r
	296	ASSERT (FALSE);\r
	297	CpuDeadLoop ();\r
	298	}\r
	299	\r
377e758c	300	Status = InstallAcpiTable (\r
	301	AcpiProtocol,\r
	302	DsdtTable,\r
	303	DsdtTable->Length,\r
	304	&TableHandle\r
	305	);\r
	306	if (EFI_ERROR (Status)) {\r
	307	return Status;\r
	308	}\r
	309	\r
	310	return EFI_SUCCESS;\r
522203de	311	}\r
522203de	312	\r