[mirror_edk2.git] / IntelFrameworkModulePkg / Universal / PcatSingleSegmentPciCfgPei / PciCfg2.c

/**\r
\r
  Copyright (c) 2006 - 2007, Intel Corporation\r
  All rights reserved. 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 "PciCfgInternal.h"\r
\r
/**\r
  @par Ppi Description:\r
  The EFI_PEI_PCI_CFG2_PPI interfaces are used to abstract\r
  accesses to PCI controllers behind a PCI root bridge\r
  controller.\r
\r
  @param Read     PCI read services.  See the Read() function description.\r
\r
  @param Write    PCI write services.  See the Write() function description.\r
\r
  @param Modify   PCI read-modify-write services.  See the Modify() function description.\r
\r
  @param Segment  The PCI bus segment which the specified functions will access.\r
\r
**/\r
GLOBAL_REMOVE_IF_UNREFERENCED\r
EFI_PEI_PCI_CFG2_PPI gPciCfg2Ppi = {\r
  PciCfg2Read,\r
  PciCfg2Write,\r
  PciCfg2Modify\r
};\r
\r
GLOBAL_REMOVE_IF_UNREFERENCED\r
EFI_PEI_PPI_DESCRIPTOR gPciCfg2PpiList = {\r
  (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
  &gEfiPciCfg2PpiGuid,\r
  &gPciCfg2Ppi\r
};\r
\r
\r
/**\r
  @par Ppi Description:\r
  The EFI_PEI_PCI_CFG_PPI interfaces are used to abstract accesses to PCI\r
  controllers behind a PCI root bridge controller.\r
\r
  @param Read     PCI read services.  See the Read() function description.\r
\r
  @param Write    PCI write services.  See the Write() function description.\r
\r
  @param Modify   PCI read-modify-write services.  See the Modify() function description.\r
\r
  @param Segment  The PCI bus segment which the specified functions will access.\r
\r
**/\r
GLOBAL_REMOVE_IF_UNREFERENCED\r
EFI_PEI_PCI_CFG_PPI gPciCfgPpi = {\r
  PciCfgRead,\r
  PciCfgWrite,\r
  PciCfgModify\r
};\r
\r
GLOBAL_REMOVE_IF_UNREFERENCED\r
EFI_PEI_PPI_DESCRIPTOR gPciCfgPpiList = {\r
  (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
  &gEfiPciCfgPpiInServiceTableGuid,\r
  &gPciCfgPpi\r
};\r
\r
\r
/**\r
   Convert EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS to PCI_LIB_ADDRESS.\r
\r
   @param Address   PCI address with\r
                    EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS format.\r
   \r
   @return The PCI address with PCI_LIB_ADDRESS format.\r
   \r
**/\r
UINTN\r
PciCfgAddressConvert (\r
  EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS *Address\r
  )\r
{\r
  if (Address->ExtendedRegister == 0) {\r
    return PCI_LIB_ADDRESS (Address->Bus, Address->Device, Address->Function, Address->Register);\r
  }\r
\r
  return PCI_LIB_ADDRESS (Address->Bus, Address->Device, Address->Function, Address->ExtendedRegister);\r
}\r
\r
/**\r
  Reads from a given location in the PCI configuration space.\r
\r
  @param  PeiServices     An indirect pointer to the PEI Services Table published by the PEI Foundation.\r
\r
  @param  This            Pointer to local data for the interface.\r
\r
  @param  Width           The width of the access. Enumerated in bytes.\r
                          See EFI_PEI_PCI_CFG_PPI_WIDTH above.\r
\r
  @param  Address         The physical address of the access. The format of\r
                          the address is described by EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS.\r
\r
  @param  Buffer          A pointer to the buffer of data..\r
\r
\r
  @retval EFI_SUCCESS           The function completed successfully.\r
\r
  @retval EFI_DEVICE_ERROR      There was a problem with the transaction.\r
\r
  @retval EFI_DEVICE_NOT_READY  The device is not capable of supporting the operation at this\r
                                time.\r
\r
**/\r
EFI_STATUS\r
EFIAPI \r
PciCfg2Read (\r
  IN CONST  EFI_PEI_SERVICES          **PeiServices,\r
  IN CONST  EFI_PEI_PCI_CFG2_PPI      *This,\r
  IN        EFI_PEI_PCI_CFG_PPI_WIDTH Width,\r
  IN        UINT64                    Address,\r
  IN OUT    VOID                      *Buffer\r
)\r
{\r
  UINTN  PciLibAddress;\r
\r
  PciLibAddress = PciCfgAddressConvert ((EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS *) &Address);\r
\r
  if (Width == EfiPeiPciCfgWidthUint8) {\r
    *((UINT8 *) Buffer) = PciRead8 (PciLibAddress);\r
  } else if (Width == EfiPeiPciCfgWidthUint16) {\r
    *((UINT16 *) Buffer) = PciRead16 (PciLibAddress);\r
  } else if (Width == EfiPeiPciCfgWidthUint32) {\r
    *((UINT32 *) Buffer) = PciRead32 (PciLibAddress);\r
  } else {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Write to a given location in the PCI configuration space.\r
\r
  @param  PeiServices     An indirect pointer to the PEI Services Table published by the PEI Foundation.\r
\r
  @param  This            Pointer to local data for the interface.\r
\r
  @param  Width           The width of the access. Enumerated in bytes.\r
                          See EFI_PEI_PCI_CFG_PPI_WIDTH above.\r
\r
  @param  Address         The physical address of the access. The format of\r
                          the address is described by EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS.\r
\r
  @param  Buffer          A pointer to the buffer of data..\r
\r
\r
  @retval EFI_SUCCESS           The function completed successfully.\r
\r
  @retval EFI_DEVICE_ERROR      There was a problem with the transaction.\r
\r
  @retval EFI_DEVICE_NOT_READY  The device is not capable of supporting the operation at this\r
                                time.\r
\r
**/\r
EFI_STATUS\r
EFIAPI \r
PciCfg2Write (\r
  IN CONST  EFI_PEI_SERVICES          **PeiServices,\r
  IN CONST  EFI_PEI_PCI_CFG2_PPI      *This,\r
  IN        EFI_PEI_PCI_CFG_PPI_WIDTH Width,\r
  IN        UINT64                    Address,\r
  IN OUT    VOID                      *Buffer\r
)\r
{\r
  UINTN  PciLibAddress;\r
\r
  PciLibAddress = PciCfgAddressConvert ((EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS *) &Address);\r
\r
  if (Width == EfiPeiPciCfgWidthUint8) {\r
    PciWrite8 (PciLibAddress, *((UINT8 *) Buffer));\r
  } else if (Width == EfiPeiPciCfgWidthUint16) {\r
    PciWrite16 (PciLibAddress, *((UINT16 *) Buffer));\r
  } else if (Width == EfiPeiPciCfgWidthUint32) {\r
    PciWrite32 (PciLibAddress, *((UINT32 *) Buffer));\r
  } else {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
\r
/**\r
  PCI read-modify-write operation.\r
\r
  @param  PeiServices     An indirect pointer to the PEI Services Table\r
                          published by the PEI Foundation.\r
\r
  @param  This            Pointer to local data for the interface.\r
\r
  @param  Width           The width of the access. Enumerated in bytes. Type\r
                          EFI_PEI_PCI_CFG_PPI_WIDTH is defined in Read().\r
\r
  @param  Address         The physical address of the access.\r
\r
  @param  SetBits         Points to value to bitwise-OR with the read configuration value.\r
\r
                          The size of the value is determined by Width.\r
\r
  @param  ClearBits       Points to the value to negate and bitwise-AND with the read configuration value.\r
                          The size of the value is determined by Width.\r
\r
\r
  @retval EFI_SUCCESS           The function completed successfully.\r
\r
  @retval EFI_DEVICE_ERROR      There was a problem with the transaction.\r
\r
  @retval EFI_DEVICE_NOT_READY  The device is not capable of supporting\r
                                the operation at this time.\r
\r
**/\r
EFI_STATUS\r
EFIAPI \r
PciCfg2Modify (\r
  IN CONST  EFI_PEI_SERVICES          **PeiServices,\r
  IN CONST  EFI_PEI_PCI_CFG2_PPI      *This,\r
  IN        EFI_PEI_PCI_CFG_PPI_WIDTH Width,\r
  IN        UINT64                    Address,\r
  IN CONST  VOID                      *SetBits,\r
  IN CONST  VOID                      *ClearBits\r
)\r
{\r
  UINTN  PciLibAddress;\r
\r
  PciLibAddress = PciCfgAddressConvert ((EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS *) &Address);\r
\r
  if (Width == EfiPeiPciCfgWidthUint8) {\r
    PciAndThenOr8 (PciLibAddress, ~(*(UINT8 *)ClearBits), *((UINT8 *) SetBits));\r
  } else if (Width == EfiPeiPciCfgWidthUint16) {\r
    PciAndThenOr16 (PciLibAddress, ~ReadUnaligned16 ((UINT16 *) ClearBits), ReadUnaligned16 ((UINT16 *) SetBits));\r
  } else if (Width == EfiPeiPciCfgWidthUint32) {\r
    PciAndThenOr32 (PciLibAddress, ~ReadUnaligned32 ((UINT32 *) ClearBits), ReadUnaligned32 ((UINT32 *) SetBits));\r
  } else {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
  return EFI_SUCCESS;\r
}\r
\r
\r
EFI_STATUS\r
EFIAPI\r
PeimInitializePciCfg (\r
  IN EFI_FFS_FILE_HEADER       *FfsHeader,\r
  IN EFI_PEI_SERVICES          **PeiServices\r
  )\r
{\r
  EFI_STATUS            Status;\r
\r
  Status = EFI_SUCCESS;\r
\r
  if ((**PeiServices).Hdr.Revision < PEI_SERVICES_REVISION) {\r
    //\r
    // BugBug: Curently, the FrameworkPkg does not define\r
    // FRAMEWORK_PEI_SERVICES. So, In order to install \r
    // the PeiServices.PciCfg(), we casttype \r
    // EFI_PEI_PCI_CFG_PPI to EFI_PEI_PCI_CFG2_PPI.\r
    // After defining the FRAMEWORK_PEI_SERVICES. this should\r
    // be updated as:\r
    // \r
    // FrameworkPeiServices = (FRAMEWORK_PEI_SERVICES **) PeiServices;\r
    // (**FrameworkPeiServices).PciCfg = &mPciCfgPpi;\r
    // \r
    (**PeiServices).PciCfg = (EFI_PEI_PCI_CFG2_PPI *) &gPciCfgPpi;\r
  } else {\r
    (**PeiServices).PciCfg = &gPciCfg2Ppi;\r
  }\r
  \r
  if (!FeaturePcdGet (PcdPciCfgDisable)) {\r
    Status = (**PeiServices).InstallPpi (PeiServices, &gPciCfgPpiList);\r
  } \r
  if (!FeaturePcdGet (PcdPciCfg2Disable)) {\r
    Status = (**PeiServices).InstallPpi (PeiServices, &gPciCfg2PpiList);\r
  }\r
\r
  return Status;\r
}\r
Commit	Line	Data
12232778	1	/**\r
	2	\r
	3	Copyright (c) 2006 - 2007, Intel Corporation\r
	4	All rights reserved. This program and the accompanying materials\r
	5	are licensed and made available under the terms and conditions of the BSD License\r
	6	which accompanies this distribution. The full text of the license may be found at\r
	7	http://opensource.org/licenses/bsd-license.php\r
	8	\r
	9	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	10	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	11	\r
	12	**/\r
	13	\r
	14	#include "PciCfgInternal.h"\r
	15	\r
	16	/**\r
	17	@par Ppi Description:\r
	18	The EFI_PEI_PCI_CFG2_PPI interfaces are used to abstract\r
	19	accesses to PCI controllers behind a PCI root bridge\r
	20	controller.\r
	21	\r
	22	@param Read PCI read services. See the Read() function description.\r
	23	\r
	24	@param Write PCI write services. See the Write() function description.\r
	25	\r
	26	@param Modify PCI read-modify-write services. See the Modify() function description.\r
	27	\r
	28	@param Segment The PCI bus segment which the specified functions will access.\r
	29	\r
	30	**/\r
	31	GLOBAL_REMOVE_IF_UNREFERENCED\r
	32	EFI_PEI_PCI_CFG2_PPI gPciCfg2Ppi = {\r
	33	PciCfg2Read,\r
	34	PciCfg2Write,\r
	35	PciCfg2Modify\r
	36	};\r
	37	\r
	38	GLOBAL_REMOVE_IF_UNREFERENCED\r
	39	EFI_PEI_PPI_DESCRIPTOR gPciCfg2PpiList = {\r
	40	(EFI_PEI_PPI_DESCRIPTOR_PPI \| EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
	41	&gEfiPciCfg2PpiGuid,\r
	42	&gPciCfg2Ppi\r
	43	};\r
	44	\r
	45	\r
	46	/**\r
	47	@par Ppi Description:\r
	48	The EFI_PEI_PCI_CFG_PPI interfaces are used to abstract accesses to PCI\r
	49	controllers behind a PCI root bridge controller.\r
	50	\r
	51	@param Read PCI read services. See the Read() function description.\r
	52	\r
	53	@param Write PCI write services. See the Write() function description.\r
	54	\r
	55	@param Modify PCI read-modify-write services. See the Modify() function description.\r
	56	\r
	57	@param Segment The PCI bus segment which the specified functions will access.\r
	58	\r
	59	**/\r
	60	GLOBAL_REMOVE_IF_UNREFERENCED\r
	61	EFI_PEI_PCI_CFG_PPI gPciCfgPpi = {\r
	62	PciCfgRead,\r
	63	PciCfgWrite,\r
	64	PciCfgModify\r
65	};\r
66	\r
67	GLOBAL_REMOVE_IF_UNREFERENCED\r
68	EFI_PEI_PPI_DESCRIPTOR gPciCfgPpiList = {\r
69	(EFI_PEI_PPI_DESCRIPTOR_PPI \| EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
70	&gEfiPciCfgPpiInServiceTableGuid,\r
71	&gPciCfgPpi\r
72	};\r
73	\r
d8b61daa	74	\r
	75	/**\r
	76	Convert EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS to PCI_LIB_ADDRESS.\r
	77	\r
	78	@param Address PCI address with\r
	79	EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS format.\r
	80	\r
	81	@return The PCI address with PCI_LIB_ADDRESS format.\r
	82	\r
	83	**/\r
	84	UINTN\r
	85	PciCfgAddressConvert (\r
	86	EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS *Address\r
	87	)\r
	88	{\r
	89	if (Address->ExtendedRegister == 0) {\r
	90	return PCI_LIB_ADDRESS (Address->Bus, Address->Device, Address->Function, Address->Register);\r
	91	}\r
	92	\r
	93	return PCI_LIB_ADDRESS (Address->Bus, Address->Device, Address->Function, Address->ExtendedRegister);\r
	94	}\r
	95	\r
12232778	96	/**\r
	97	Reads from a given location in the PCI configuration space.\r
	98	\r
	99	@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.\r
	100	\r
	101	@param This Pointer to local data for the interface.\r
	102	\r
	103	@param Width The width of the access. Enumerated in bytes.\r
	104	See EFI_PEI_PCI_CFG_PPI_WIDTH above.\r
	105	\r
	106	@param Address The physical address of the access. The format of\r
	107	the address is described by EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS.\r
	108	\r
	109	@param Buffer A pointer to the buffer of data..\r
	110	\r
	111	\r
	112	@retval EFI_SUCCESS The function completed successfully.\r
	113	\r
	114	@retval EFI_DEVICE_ERROR There was a problem with the transaction.\r
	115	\r
	116	@retval EFI_DEVICE_NOT_READY The device is not capable of supporting the operation at this\r
	117	time.\r
	118	\r
	119	**/\r
	120	EFI_STATUS\r
	121	EFIAPI \r
	122	PciCfg2Read (\r
	123	IN CONST EFI_PEI_SERVICES **PeiServices,\r
	124	IN CONST EFI_PEI_PCI_CFG2_PPI *This,\r
	125	IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,\r
	126	IN UINT64 Address,\r
	127	IN OUT VOID *Buffer\r
	128	)\r
	129	{\r
	130	UINTN PciLibAddress;\r
	131	\r
d8b61daa	132	PciLibAddress = PciCfgAddressConvert ((EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS *) &Address);\r
12232778	133	\r
	134	if (Width == EfiPeiPciCfgWidthUint8) {\r
	135	((UINT8 ) Buffer) = PciRead8 (PciLibAddress);\r
	136	} else if (Width == EfiPeiPciCfgWidthUint16) {\r
	137	((UINT16 ) Buffer) = PciRead16 (PciLibAddress);\r
	138	} else if (Width == EfiPeiPciCfgWidthUint32) {\r
	139	((UINT32 ) Buffer) = PciRead32 (PciLibAddress);\r
	140	} else {\r
	141	return EFI_INVALID_PARAMETER;\r
	142	}\r
	143	\r
	144	return EFI_SUCCESS;\r
	145	}\r
	146	\r
	147	/**\r
	148	Write to a given location in the PCI configuration space.\r
	149	\r
	150	@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.\r
	151	\r
	152	@param This Pointer to local data for the interface.\r
	153	\r
	154	@param Width The width of the access. Enumerated in bytes.\r
	155	See EFI_PEI_PCI_CFG_PPI_WIDTH above.\r
	156	\r
	157	@param Address The physical address of the access. The format of\r
	158	the address is described by EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS.\r
	159	\r
	160	@param Buffer A pointer to the buffer of data..\r
	161	\r
	162	\r
	163	@retval EFI_SUCCESS The function completed successfully.\r
	164	\r
	165	@retval EFI_DEVICE_ERROR There was a problem with the transaction.\r
	166	\r
	167	@retval EFI_DEVICE_NOT_READY The device is not capable of supporting the operation at this\r
	168	time.\r
	169	\r
	170	**/\r
	171	EFI_STATUS\r
	172	EFIAPI \r
	173	PciCfg2Write (\r
	174	IN CONST EFI_PEI_SERVICES **PeiServices,\r
	175	IN CONST EFI_PEI_PCI_CFG2_PPI *This,\r
	176	IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,\r
	177	IN UINT64 Address,\r
	178	IN OUT VOID *Buffer\r
	179	)\r
	180	{\r
	181	UINTN PciLibAddress;\r
	182	\r
d8b61daa	183	PciLibAddress = PciCfgAddressConvert ((EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS *) &Address);\r
12232778	184	\r
	185	if (Width == EfiPeiPciCfgWidthUint8) {\r
	186	PciWrite8 (PciLibAddress, ((UINT8 ) Buffer));\r
	187	} else if (Width == EfiPeiPciCfgWidthUint16) {\r
	188	PciWrite16 (PciLibAddress, ((UINT16 ) Buffer));\r
	189	} else if (Width == EfiPeiPciCfgWidthUint32) {\r
	190	PciWrite32 (PciLibAddress, ((UINT32 ) Buffer));\r
	191	} else {\r
	192	return EFI_INVALID_PARAMETER;\r
	193	}\r
	194	\r
	195	return EFI_SUCCESS;\r
	196	}\r
	197	\r
	198	\r
	199	/**\r
	200	PCI read-modify-write operation.\r
	201	\r
	202	@param PeiServices An indirect pointer to the PEI Services Table\r
	203	published by the PEI Foundation.\r
	204	\r
	205	@param This Pointer to local data for the interface.\r
	206	\r
	207	@param Width The width of the access. Enumerated in bytes. Type\r
	208	EFI_PEI_PCI_CFG_PPI_WIDTH is defined in Read().\r
	209	\r
	210	@param Address The physical address of the access.\r
	211	\r
	212	@param SetBits Points to value to bitwise-OR with the read configuration value.\r
	213	\r
	214	The size of the value is determined by Width.\r
	215	\r
	216	@param ClearBits Points to the value to negate and bitwise-AND with the read configuration value.\r
	217	The size of the value is determined by Width.\r
	218	\r
	219	\r
	220	@retval EFI_SUCCESS The function completed successfully.\r
	221	\r
	222	@retval EFI_DEVICE_ERROR There was a problem with the transaction.\r
	223	\r
	224	@retval EFI_DEVICE_NOT_READY The device is not capable of supporting\r
	225	the operation at this time.\r
	226	\r
	227	**/\r
	228	EFI_STATUS\r
	229	EFIAPI \r
	230	PciCfg2Modify (\r
	231	IN CONST EFI_PEI_SERVICES **PeiServices,\r
	232	IN CONST EFI_PEI_PCI_CFG2_PPI *This,\r
	233	IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,\r
	234	IN UINT64 Address,\r
	235	IN CONST VOID *SetBits,\r
	236	IN CONST VOID *ClearBits\r
	237	)\r
	238	{\r
	239	UINTN PciLibAddress;\r
	240	\r
d8b61daa	241	PciLibAddress = PciCfgAddressConvert ((EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS *) &Address);\r
12232778	242	\r
	243	if (Width == EfiPeiPciCfgWidthUint8) {\r
	244	PciAndThenOr8 (PciLibAddress, ~((UINT8 )ClearBits), ((UINT8 ) SetBits));\r
	245	} else if (Width == EfiPeiPciCfgWidthUint16) {\r
	246	PciAndThenOr16 (PciLibAddress, ~ReadUnaligned16 ((UINT16 ) ClearBits), ReadUnaligned16 ((UINT16 ) SetBits));\r
	247	} else if (Width == EfiPeiPciCfgWidthUint32) {\r
	248	PciAndThenOr32 (PciLibAddress, ~ReadUnaligned32 ((UINT32 ) ClearBits), ReadUnaligned32 ((UINT32 ) SetBits));\r
	249	} else {\r
	250	return EFI_INVALID_PARAMETER;\r
	251	}\r
	252	return EFI_SUCCESS;\r
	253	}\r
	254	\r
	255	\r
	256	EFI_STATUS\r
	257	EFIAPI\r
	258	PeimInitializePciCfg (\r
	259	IN EFI_FFS_FILE_HEADER *FfsHeader,\r
	260	IN EFI_PEI_SERVICES **PeiServices\r
	261	)\r
	262	{\r
	263	EFI_STATUS Status;\r
	264	\r
	265	Status = EFI_SUCCESS;\r
	266	\r
	267	if ((**PeiServices).Hdr.Revision < PEI_SERVICES_REVISION) {\r
	268	//\r
	269	// BugBug: Curently, the FrameworkPkg does not define\r
	270	// FRAMEWORK_PEI_SERVICES. So, In order to install \r
	271	// the PeiServices.PciCfg(), we casttype \r
	272	// EFI_PEI_PCI_CFG_PPI to EFI_PEI_PCI_CFG2_PPI.\r
	273	// After defining the FRAMEWORK_PEI_SERVICES. this should\r
	274	// be updated as:\r
	275	// \r
	276	// FrameworkPeiServices = (FRAMEWORK_PEI_SERVICES **) PeiServices;\r
	277	// (**FrameworkPeiServices).PciCfg = &mPciCfgPpi;\r
	278	// \r
	279	(*PeiServices).PciCfg = (EFI_PEI_PCI_CFG2_PPI ) &gPciCfgPpi;\r
	280	} else {\r
	281	(**PeiServices).PciCfg = &gPciCfg2Ppi;\r
	282	}\r
	283	\r
	284	if (!FeaturePcdGet (PcdPciCfgDisable)) {\r
	285	Status = (**PeiServices).InstallPpi (PeiServices, &gPciCfgPpiList);\r
	286	} \r
	287	if (!FeaturePcdGet (PcdPciCfg2Disable)) {\r
	288	Status = (**PeiServices).InstallPpi (PeiServices, &gPciCfg2PpiList);\r
	289	}\r
	290	\r
	291	return Status;\r
	292	}\r