[mirror_edk2.git] / MdeModulePkg / Universal / ReportStatusCodeRouter / Pei / ReportStatusCodeRouterPei.c

/** @file\r
  Report Status Code Router PEIM which produces Report Stataus Code Handler PPI and Status Code PPI.\r
\r
  Copyright (c) 2009 - 2010, 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 "ReportStatusCodeRouterPei.h"\r
\r
EFI_PEI_RSC_HANDLER_PPI     mRscHandlerPpi = {\r
  Register,\r
  Unregister\r
  };\r
\r
EFI_PEI_PROGRESS_CODE_PPI     mStatusCodePpi = {\r
  ReportDispatcher\r
  };\r
\r
EFI_PEI_PPI_DESCRIPTOR   mRscHandlerPpiList[] = {\r
  {\r
    EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r
    &gEfiPeiRscHandlerPpiGuid,\r
    &mRscHandlerPpi\r
  }\r
};\r
\r
EFI_PEI_PPI_DESCRIPTOR   mStatusCodePpiList[] = {\r
  {\r
    EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r
    &gEfiPeiStatusCodePpiGuid,\r
    &mStatusCodePpi\r
  }\r
};\r
\r
/**\r
  Worker function to create one memory status code GUID'ed HOB,\r
  using PacketIndex to identify the packet.\r
\r
  @param   PacketIndex    Index of records packet.\r
\r
  @return  Pointer to the memory status code packet.\r
\r
**/\r
UINTN *\r
CreateRscHandlerCallbackPacket (\r
  VOID\r
  )\r
{\r
  UINTN  *NumberOfEntries;\r
\r
  //\r
  // Build GUID'ed HOB with PCD defined size.\r
  //\r
  NumberOfEntries = BuildGuidHob (\r
                      &gStatusCodeCallbackGuid,\r
                      sizeof (EFI_PEI_RSC_HANDLER_CALLBACK) * 64 + sizeof (UINTN)\r
                      );\r
  ASSERT (NumberOfEntries != NULL);\r
\r
  *NumberOfEntries = 0;\r
\r
  return NumberOfEntries;\r
}\r
\r
/**\r
  Register the callback function for ReportStatusCode() notification.\r
  \r
  When this function is called the function pointer is added to an internal list and any future calls to\r
  ReportStatusCode() will be forwarded to the Callback function.\r
\r
  @param[in] Callback           A pointer to a function of type EFI_PEI_RSC_HANDLER_CALLBACK that is called\r
                                when a call to ReportStatusCode() occurs.\r
                        \r
  @retval EFI_SUCCESS           Function was successfully registered.\r
  @retval EFI_INVALID_PARAMETER The callback function was NULL.\r
  @retval EFI_OUT_OF_RESOURCES  The internal buffer ran out of space. No more functions can be\r
                                registered.\r
  @retval EFI_ALREADY_STARTED   The function was already registered. It can't be registered again.\r
  \r
**/\r
EFI_STATUS\r
EFIAPI\r
Register (\r
  IN EFI_PEI_RSC_HANDLER_CALLBACK Callback\r
  )\r
{\r
  EFI_PEI_HOB_POINTERS          Hob;\r
  EFI_PEI_RSC_HANDLER_CALLBACK  *CallbackEntry;\r
  UINTN                         *NumberOfEntries;\r
  UINTN                         Index;\r
  UINTN                         *FreePacket;\r
\r
  if (Callback == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  Hob.Raw  = GetFirstGuidHob (&gStatusCodeCallbackGuid);\r
  FreePacket = NULL;\r
  while (Hob.Raw != NULL) {\r
    NumberOfEntries = GET_GUID_HOB_DATA (Hob);\r
    CallbackEntry   = (EFI_PEI_RSC_HANDLER_CALLBACK *) (NumberOfEntries + 1);\r
    if (*NumberOfEntries < 64) {\r
      FreePacket = NumberOfEntries;\r
    }\r
    for (Index = 0; Index < *NumberOfEntries; Index++) {\r
      if (CallbackEntry[Index] == Callback) {\r
        //\r
        // If the function was already registered. It can't be registered again.\r
        //\r
        return EFI_ALREADY_STARTED;\r
      }\r
    }\r
    Hob.Raw = GET_NEXT_HOB (Hob);\r
    Hob.Raw = GetNextGuidHob (&gStatusCodeCallbackGuid, Hob.Raw);\r
  }\r
\r
  if (FreePacket == NULL) {\r
    FreePacket = CreateRscHandlerCallbackPacket();\r
  }\r
\r
  CallbackEntry = (EFI_PEI_RSC_HANDLER_CALLBACK *) (FreePacket + 1);\r
  CallbackEntry[*FreePacket] = Callback;\r
  *FreePacket += 1;\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Remove a previously registered callback function from the notification list.\r
  \r
  ReportStatusCode() messages will no longer be forwarded to the Callback function.\r
  \r
  @param[in] Callback           A pointer to a function of type EFI_PEI_RSC_HANDLER_CALLBACK that is to be\r
                                unregistered.\r
\r
  @retval EFI_SUCCESS           The function was successfully unregistered.\r
  @retval EFI_INVALID_PARAMETER The callback function was NULL.\r
  @retval EFI_NOT_FOUND         The callback function was not found to be unregistered.\r
                        \r
**/\r
EFI_STATUS\r
EFIAPI\r
Unregister (\r
  IN EFI_PEI_RSC_HANDLER_CALLBACK Callback\r
  )\r
{\r
  EFI_PEI_HOB_POINTERS            Hob;\r
  EFI_PEI_RSC_HANDLER_CALLBACK    *CallbackEntry;\r
  UINTN                           *NumberOfEntries;\r
  UINTN                           Index;\r
\r
  if (Callback == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  Hob.Raw  = GetFirstGuidHob (&gStatusCodeCallbackGuid);\r
  while (Hob.Raw != NULL) {\r
    NumberOfEntries = GET_GUID_HOB_DATA (Hob);\r
    CallbackEntry   = (EFI_PEI_RSC_HANDLER_CALLBACK *) (NumberOfEntries + 1);\r
    for (Index = 0; Index < *NumberOfEntries; Index++) {\r
      if (CallbackEntry[Index] == Callback) {\r
        CallbackEntry[Index] = CallbackEntry[*NumberOfEntries - 1];\r
        *NumberOfEntries -= 1;\r
        return EFI_SUCCESS;\r
      }\r
    }\r
    Hob.Raw = GET_NEXT_HOB (Hob);\r
    Hob.Raw = GetNextGuidHob (&gStatusCodeCallbackGuid, Hob.Raw);\r
  }\r
\r
  return EFI_NOT_FOUND;\r
}\r
\r
/**\r
  Publishes an interface that allows PEIMs to report status codes.\r
\r
  This function implements EFI_PEI_PROGRESS_CODE_PPI.ReportStatusCode().\r
  It publishes an interface that allows PEIMs to report status codes.\r
\r
  @param  PeiServices      An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r
  @param  CodeType         Indicates the type of status code being reported.\r
  @param  Value            Describes the current status of a hardware or\r
                           software entity. This includes information about the class and\r
                           subclass that is used to classify the entity as well as an operation.\r
                           For progress codes, the operation is the current activity.\r
                           For error codes, it is the exception.For debug codes,it is not defined at this time.\r
  @param  Instance         The enumeration of a hardware or software entity within\r
                           the system. A system may contain multiple entities that match a class/subclass\r
                           pairing. The instance differentiates between them. An instance of 0 indicates\r
                           that instance information is unavailable, not meaningful, or not relevant.\r
                           Valid instance numbers start with 1.\r
  @param  CallerId         This optional parameter may be used to identify the caller.\r
                           This parameter allows the status code driver to apply different rules to\r
                           different callers.\r
  @param  Data             This optional parameter may be used to pass additional data.\r
\r
  @retval EFI_SUCCESS      The function completed successfully.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
ReportDispatcher (\r
  IN CONST EFI_PEI_SERVICES         **PeiServices,\r
  IN EFI_STATUS_CODE_TYPE           CodeType,\r
  IN EFI_STATUS_CODE_VALUE          Value,\r
  IN UINT32                         Instance,\r
  IN CONST EFI_GUID                 *CallerId OPTIONAL,\r
  IN CONST EFI_STATUS_CODE_DATA     *Data OPTIONAL\r
  )\r
{\r
  EFI_PEI_HOB_POINTERS            Hob;\r
  EFI_PEI_RSC_HANDLER_CALLBACK    *CallbackEntry;\r
  UINTN                           *NumberOfEntries;\r
  UINTN                           Index;\r
\r
  Hob.Raw  = GetFirstGuidHob (&gStatusCodeCallbackGuid);\r
  while (Hob.Raw != NULL) {\r
    NumberOfEntries = GET_GUID_HOB_DATA (Hob);\r
    CallbackEntry   = (EFI_PEI_RSC_HANDLER_CALLBACK *) (NumberOfEntries + 1);\r
    for (Index = 0; Index < *NumberOfEntries; Index++) {\r
      CallbackEntry[Index](\r
        PeiServices,\r
        CodeType,\r
        Value,\r
        Instance,\r
        CallerId,\r
        Data\r
        );\r
    }\r
    Hob.Raw = GET_NEXT_HOB (Hob);\r
    Hob.Raw = GetNextGuidHob (&gStatusCodeCallbackGuid, Hob.Raw);\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Entry point of Status Code PEIM.\r
  \r
  This function is the entry point of this Status Code Router PEIM.\r
  It produces Report Stataus Code Handler PPI and Status Code PPI.\r
\r
  @param  FileHandle  Handle of the file being invoked.\r
  @param  PeiServices Describes the list of possible PEI Services.\r
\r
  @retval EFI_SUCESS  The entry point of DXE IPL PEIM executes successfully.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
GenericStatusCodePeiEntry (\r
  IN       EFI_PEI_FILE_HANDLE  FileHandle,\r
  IN CONST EFI_PEI_SERVICES     **PeiServices\r
  )\r
{\r
  EFI_STATUS                 Status;\r
  EFI_PEI_PPI_DESCRIPTOR     *OldDescriptor;\r
  EFI_PEI_PROGRESS_CODE_PPI  *OldStatusCodePpi;\r
\r
  CreateRscHandlerCallbackPacket ();\r
\r
  //\r
  // Install Report Status Code Handler PPI\r
  //\r
  Status = PeiServicesInstallPpi (mRscHandlerPpiList);\r
  ASSERT_EFI_ERROR (Status);\r
\r
  //\r
  // Install Status Code PPI. PI spec specifies that there can be only one instance\r
  // of this PPI in system. So first check if other instance already exists.\r
  // If no other instance exists, then just install the PPI.\r
  // If other instance already exists, then reinstall it.\r
  //\r
  Status = PeiServicesLocatePpi (\r
             &gEfiPeiStatusCodePpiGuid,\r
             0,\r
             &OldDescriptor,\r
             (VOID **) &OldStatusCodePpi\r
             );\r
  if (!EFI_ERROR (Status)) {\r
    Status = PeiServicesReInstallPpi (OldDescriptor, mStatusCodePpiList);\r
  } else {\r
    Status = PeiServicesInstallPpi (mStatusCodePpiList);\r
  }\r
  ASSERT_EFI_ERROR (Status);\r
\r
  return EFI_SUCCESS;\r
}\r
Commit	Line	Data
25126a05	1	/** @file\r
	2	Report Status Code Router PEIM which produces Report Stataus Code Handler PPI and Status Code PPI.\r
	3	\r
e5eed7d3 HT	4	Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>\r
e5eed7d3 HT	5	This program and the accompanying materials\r
25126a05	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 "ReportStatusCodeRouterPei.h"\r
	16	\r
	17	EFI_PEI_RSC_HANDLER_PPI mRscHandlerPpi = {\r
	18	Register,\r
	19	Unregister\r
	20	};\r
	21	\r
	22	EFI_PEI_PROGRESS_CODE_PPI mStatusCodePpi = {\r
	23	ReportDispatcher\r
	24	};\r
	25	\r
e9867606	26	EFI_PEI_PPI_DESCRIPTOR mRscHandlerPpiList[] = {\r
25126a05	27	{\r
e9867606	28	EFI_PEI_PPI_DESCRIPTOR_PPI \| EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r
25126a05	29	&gEfiPeiRscHandlerPpiGuid,\r
25126a05	30	&mRscHandlerPpi\r
e9867606	31	}\r
	32	};\r
	33	\r
	34	EFI_PEI_PPI_DESCRIPTOR mStatusCodePpiList[] = {\r
25126a05	35	{\r
	36	EFI_PEI_PPI_DESCRIPTOR_PPI \| EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r
	37	&gEfiPeiStatusCodePpiGuid,\r
	38	&mStatusCodePpi\r
	39	}\r
	40	};\r
	41	\r
	42	/**\r
	43	Worker function to create one memory status code GUID'ed HOB,\r
	44	using PacketIndex to identify the packet.\r
	45	\r
	46	@param PacketIndex Index of records packet.\r
	47	\r
	48	@return Pointer to the memory status code packet.\r
	49	\r
	50	**/\r
	51	UINTN *\r
	52	CreateRscHandlerCallbackPacket (\r
	53	VOID\r
	54	)\r
	55	{\r
	56	UINTN *NumberOfEntries;\r
	57	\r
	58	//\r
	59	// Build GUID'ed HOB with PCD defined size.\r
	60	//\r
	61	NumberOfEntries = BuildGuidHob (\r
	62	&gStatusCodeCallbackGuid,\r
	63	sizeof (EFI_PEI_RSC_HANDLER_CALLBACK) * 64 + sizeof (UINTN)\r
	64	);\r
	65	ASSERT (NumberOfEntries != NULL);\r
	66	\r
	67	*NumberOfEntries = 0;\r
	68	\r
	69	return NumberOfEntries;\r
	70	}\r
	71	\r
	72	/**\r
	73	Register the callback function for ReportStatusCode() notification.\r
	74	\r
	75	When this function is called the function pointer is added to an internal list and any future calls to\r
	76	ReportStatusCode() will be forwarded to the Callback function.\r
	77	\r
	78	@param[in] Callback A pointer to a function of type EFI_PEI_RSC_HANDLER_CALLBACK that is called\r
	79	when a call to ReportStatusCode() occurs.\r
	80	\r
	81	@retval EFI_SUCCESS Function was successfully registered.\r
	82	@retval EFI_INVALID_PARAMETER The callback function was NULL.\r
	83	@retval EFI_OUT_OF_RESOURCES The internal buffer ran out of space. No more functions can be\r
	84	registered.\r
	85	@retval EFI_ALREADY_STARTED The function was already registered. It can't be registered again.\r
	86	\r
	87	**/\r
	88	EFI_STATUS\r
	89	EFIAPI\r
	90	Register (\r
	91	IN EFI_PEI_RSC_HANDLER_CALLBACK Callback\r
	92	)\r
	93	{\r
	94	EFI_PEI_HOB_POINTERS Hob;\r
	95	EFI_PEI_RSC_HANDLER_CALLBACK *CallbackEntry;\r
	96	UINTN *NumberOfEntries;\r
	97	UINTN Index;\r
	98	UINTN *FreePacket;\r
99	\r
100	if (Callback == NULL) {\r
101	return EFI_INVALID_PARAMETER;\r
102	}\r
103	\r
104	Hob.Raw = GetFirstGuidHob (&gStatusCodeCallbackGuid);\r
105	FreePacket = NULL;\r
106	while (Hob.Raw != NULL) {\r
107	NumberOfEntries = GET_GUID_HOB_DATA (Hob);\r
108	CallbackEntry = (EFI_PEI_RSC_HANDLER_CALLBACK *) (NumberOfEntries + 1);\r
109	if (*NumberOfEntries < 64) {\r
110	FreePacket = NumberOfEntries;\r
111	}\r
112	for (Index = 0; Index < *NumberOfEntries; Index++) {\r
113	if (CallbackEntry[Index] == Callback) {\r
114	//\r
115	// If the function was already registered. It can't be registered again.\r
116	//\r
117	return EFI_ALREADY_STARTED;\r
118	}\r
119	}\r
120	Hob.Raw = GET_NEXT_HOB (Hob);\r
121	Hob.Raw = GetNextGuidHob (&gStatusCodeCallbackGuid, Hob.Raw);\r
122	}\r
123	\r
124	if (FreePacket == NULL) {\r
125	FreePacket = CreateRscHandlerCallbackPacket();\r
126	}\r
127	\r
128	CallbackEntry = (EFI_PEI_RSC_HANDLER_CALLBACK *) (FreePacket + 1);\r
129	CallbackEntry[*FreePacket] = Callback;\r
130	*FreePacket += 1;\r
131	\r
132	return EFI_SUCCESS;\r
133	}\r
134	\r
135	/**\r
136	Remove a previously registered callback function from the notification list.\r
137	\r
138	ReportStatusCode() messages will no longer be forwarded to the Callback function.\r
139	\r
140	@param[in] Callback A pointer to a function of type EFI_PEI_RSC_HANDLER_CALLBACK that is to be\r
141	unregistered.\r
142	\r
143	@retval EFI_SUCCESS The function was successfully unregistered.\r
144	@retval EFI_INVALID_PARAMETER The callback function was NULL.\r
145	@retval EFI_NOT_FOUND The callback function was not found to be unregistered.\r
146	\r
147	**/\r
148	EFI_STATUS\r
149	EFIAPI\r
150	Unregister (\r
151	IN EFI_PEI_RSC_HANDLER_CALLBACK Callback\r
152	)\r
153	{\r
154	EFI_PEI_HOB_POINTERS Hob;\r
155	EFI_PEI_RSC_HANDLER_CALLBACK *CallbackEntry;\r
156	UINTN *NumberOfEntries;\r
157	UINTN Index;\r
158	\r
159	if (Callback == NULL) {\r
160	return EFI_INVALID_PARAMETER;\r
161	}\r
162	\r
163	Hob.Raw = GetFirstGuidHob (&gStatusCodeCallbackGuid);\r
164	while (Hob.Raw != NULL) {\r
165	NumberOfEntries = GET_GUID_HOB_DATA (Hob);\r
166	CallbackEntry = (EFI_PEI_RSC_HANDLER_CALLBACK *) (NumberOfEntries + 1);\r
167	for (Index = 0; Index < *NumberOfEntries; Index++) {\r
168	if (CallbackEntry[Index] == Callback) {\r
169	CallbackEntry[Index] = CallbackEntry[*NumberOfEntries - 1];\r
170	*NumberOfEntries -= 1;\r
171	return EFI_SUCCESS;\r
172	}\r
173	}\r
174	Hob.Raw = GET_NEXT_HOB (Hob);\r
175	Hob.Raw = GetNextGuidHob (&gStatusCodeCallbackGuid, Hob.Raw);\r
176	}\r
177	\r
178	return EFI_NOT_FOUND;\r
179	}\r
180	\r
181	/**\r
182	Publishes an interface that allows PEIMs to report status codes.\r
183	\r
184	This function implements EFI_PEI_PROGRESS_CODE_PPI.ReportStatusCode().\r
185	It publishes an interface that allows PEIMs to report status codes.\r
186	\r
187	@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r
188	@param CodeType Indicates the type of status code being reported.\r
189	@param Value Describes the current status of a hardware or\r
190	software entity. This includes information about the class and\r
191	subclass that is used to classify the entity as well as an operation.\r
192	For progress codes, the operation is the current activity.\r
193	For error codes, it is the exception.For debug codes,it is not defined at this time.\r
194	@param Instance The enumeration of a hardware or software entity within\r
195	the system. A system may contain multiple entities that match a class/subclass\r
196	pairing. The instance differentiates between them. An instance of 0 indicates\r
197	that instance information is unavailable, not meaningful, or not relevant.\r
198	Valid instance numbers start with 1.\r
199	@param CallerId This optional parameter may be used to identify the caller.\r
200	This parameter allows the status code driver to apply different rules to\r
201	different callers.\r
202	@param Data This optional parameter may be used to pass additional data.\r
203	\r
204	@retval EFI_SUCCESS The function completed successfully.\r
205	\r
206	**/\r
207	EFI_STATUS\r
208	EFIAPI\r
209	ReportDispatcher (\r
210	IN CONST EFI_PEI_SERVICES **PeiServices,\r
211	IN EFI_STATUS_CODE_TYPE CodeType,\r
212	IN EFI_STATUS_CODE_VALUE Value,\r
213	IN UINT32 Instance,\r
214	IN CONST EFI_GUID *CallerId OPTIONAL,\r
215	IN CONST EFI_STATUS_CODE_DATA *Data OPTIONAL\r
216	)\r
217	{\r
218	EFI_PEI_HOB_POINTERS Hob;\r
219	EFI_PEI_RSC_HANDLER_CALLBACK *CallbackEntry;\r
220	UINTN *NumberOfEntries;\r
221	UINTN Index;\r
222	\r
223	Hob.Raw = GetFirstGuidHob (&gStatusCodeCallbackGuid);\r
224	while (Hob.Raw != NULL) {\r
225	NumberOfEntries = GET_GUID_HOB_DATA (Hob);\r
226	CallbackEntry = (EFI_PEI_RSC_HANDLER_CALLBACK *) (NumberOfEntries + 1);\r
227	for (Index = 0; Index < *NumberOfEntries; Index++) {\r
228	CallbackEntry[Index](\r
229	PeiServices,\r
230	CodeType,\r
231	Value,\r
232	Instance,\r
233	CallerId,\r
234	Data\r
235	);\r
236	}\r
237	Hob.Raw = GET_NEXT_HOB (Hob);\r
238	Hob.Raw = GetNextGuidHob (&gStatusCodeCallbackGuid, Hob.Raw);\r
239	}\r
240	\r
241	return EFI_SUCCESS;\r
242	}\r
243	\r
244	/**\r
245	Entry point of Status Code PEIM.\r
246	\r
247	This function is the entry point of this Status Code Router PEIM.\r
248	It produces Report Stataus Code Handler PPI and Status Code PPI.\r
249	\r
250	@param FileHandle Handle of the file being invoked.\r
251	@param PeiServices Describes the list of possible PEI Services.\r
252	\r
253	@retval EFI_SUCESS The entry point of DXE IPL PEIM executes successfully.\r
254	\r
255	**/\r
256	EFI_STATUS\r
257	EFIAPI\r
258	GenericStatusCodePeiEntry (\r
259	IN EFI_PEI_FILE_HANDLE FileHandle,\r
260	IN CONST EFI_PEI_SERVICES **PeiServices\r
261	)\r
262	{\r
e9867606	263	EFI_STATUS Status;\r
	264	EFI_PEI_PPI_DESCRIPTOR *OldDescriptor;\r
	265	EFI_PEI_PROGRESS_CODE_PPI *OldStatusCodePpi;\r
25126a05	266	\r
	267	CreateRscHandlerCallbackPacket ();\r
	268	\r
e9867606	269	//\r
	270	// Install Report Status Code Handler PPI\r
	271	//\r
	272	Status = PeiServicesInstallPpi (mRscHandlerPpiList);\r
	273	ASSERT_EFI_ERROR (Status);\r
	274	\r
	275	//\r
	276	// Install Status Code PPI. PI spec specifies that there can be only one instance\r
	277	// of this PPI in system. So first check if other instance already exists.\r
	278	// If no other instance exists, then just install the PPI.\r
	279	// If other instance already exists, then reinstall it.\r
	280	//\r
	281	Status = PeiServicesLocatePpi (\r
	282	&gEfiPeiStatusCodePpiGuid,\r
	283	0,\r
	284	&OldDescriptor,\r
	285	(VOID **) &OldStatusCodePpi\r
	286	);\r
	287	if (!EFI_ERROR (Status)) {\r
	288	Status = PeiServicesReInstallPpi (OldDescriptor, mStatusCodePpiList);\r
	289	} else {\r
	290	Status = PeiServicesInstallPpi (mStatusCodePpiList);\r
	291	}\r
25126a05	292	ASSERT_EFI_ERROR (Status);\r
	293	\r
	294	return EFI_SUCCESS;\r
	295	}\r