[mirror_edk2.git] / MdePkg / Library / PeiServicesLib / PeiServicesLib.c

/** @file\r
  Implementation for PEI Services Library.\r
\r
  Copyright (c) 2006 - 2007, Intel Corporation<BR>\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
//\r
// The package level header files this module uses\r
//\r
#include <PiPei.h>\r
//\r
// The protocols, PPI and GUID defintions for this module\r
//\r
//\r
// The Library classes this module consumes\r
//\r
#include <Library/PeiServicesLib.h>\r
#include <Library/PeiServicesTablePointerLib.h>\r
\r
/**\r
  This service enables a given PEIM to register an interface into the PEI Foundation.\r
\r
  @param  PpiList               A pointer to the list of interfaces that the caller shall install.\r
\r
  @retval EFI_SUCCESS           The interface was successfully installed.\r
  @retval EFI_INVALID_PARAMETER The PpiList pointer is NULL.\r
  @retval EFI_INVALID_PARAMETER Any of the PEI PPI descriptors in the list do not have the\r
                                EFI_PEI_PPI_DESCRIPTOR_PPI bit set in the Flags field.\r
  @retval EFI_OUT_OF_RESOURCES  There is no additional space in the PPI database.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiServicesInstallPpi (\r
  IN EFI_PEI_PPI_DESCRIPTOR     *PpiList\r
  )\r
{\r
  EFI_PEI_SERVICES  **PeiServices;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  return (*PeiServices)->InstallPpi (PeiServices, PpiList);\r
}\r
\r
/**\r
  This service enables PEIMs to replace an entry in the PPI database with an alternate entry.\r
\r
  @param  OldPpi                Pointer to the old PEI PPI Descriptors.\r
  @param  NewPpi                Pointer to the new PEI PPI Descriptors.\r
\r
  @retval EFI_SUCCESS           The interface was successfully installed.\r
  @retval EFI_INVALID_PARAMETER The OldPpi or NewPpi is NULL.\r
  @retval EFI_INVALID_PARAMETER Any of the PEI PPI descriptors in the list do not have the\r
                                EFI_PEI_PPI_DESCRIPTOR_PPI bit set in the Flags field.\r
  @retval EFI_OUT_OF_RESOURCES  There is no additional space in the PPI database.\r
  @retval EFI_NOT_FOUND         The PPI for which the reinstallation was requested has not been\r
                                installed.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiServicesReInstallPpi (\r
  IN EFI_PEI_PPI_DESCRIPTOR     *OldPpi,\r
  IN EFI_PEI_PPI_DESCRIPTOR     *NewPpi\r
  )\r
{\r
  EFI_PEI_SERVICES  **PeiServices;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  return (*PeiServices)->ReInstallPpi (PeiServices, OldPpi, NewPpi);\r
}\r
\r
/**\r
  This service enables PEIMs to discover a given instance of an interface.\r
\r
  @param  Guid                  A pointer to the GUID whose corresponding interface needs to be\r
                                found.\r
  @param  Instance              The N-th instance of the interface that is required.\r
  @param  PpiDescriptor         A pointer to instance of the EFI_PEI_PPI_DESCRIPTOR.\r
  @param  Ppi                   A pointer to the instance of the interface.\r
\r
  @retval EFI_SUCCESS           The interface was successfully returned.\r
  @retval EFI_NOT_FOUND         The PPI descriptor is not found in the database.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiServicesLocatePpi (\r
  IN EFI_GUID                   *Guid,\r
  IN UINTN                      Instance,\r
  IN OUT EFI_PEI_PPI_DESCRIPTOR **PpiDescriptor,\r
  IN OUT VOID                   **Ppi\r
  )\r
{\r
  EFI_PEI_SERVICES  **PeiServices;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  return (*PeiServices)->LocatePpi (PeiServices, Guid, Instance, PpiDescriptor, Ppi);\r
}\r
\r
/**\r
  This service enables PEIMs to register a given service to be invoked when another service is\r
  installed or reinstalled.\r
\r
  @param  NotifyList            A pointer to the list of notification interfaces that the caller\r
                                shall install.\r
\r
  @retval EFI_SUCCESS           The interface was successfully installed.\r
  @retval EFI_INVALID_PARAMETER The NotifyList pointer is NULL.\r
  @retval EFI_INVALID_PARAMETER Any of the PEI notify descriptors in the list do not have the\r
                                EFI_PEI_PPI_DESCRIPTOR_NOTIFY_TYPES bit set in the Flags field.\r
  @retval EFI_OUT_OF_RESOURCES  There is no additional space in the PPI database.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiServicesNotifyPpi (\r
  IN EFI_PEI_NOTIFY_DESCRIPTOR  *NotifyList\r
  )\r
{\r
  EFI_PEI_SERVICES  **PeiServices;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  return (*PeiServices)->NotifyPpi (PeiServices, NotifyList);\r
}\r
\r
/**\r
  This service enables PEIMs to ascertain the present value of the boot mode.\r
\r
  @param  BootMode              A pointer to contain the value of the boot mode.\r
\r
  @retval EFI_SUCCESS           The boot mode was returned successfully.\r
  @retval EFI_INVALID_PARAMETER BootMode is NULL.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiServicesGetBootMode (\r
  IN OUT EFI_BOOT_MODE          *BootMode\r
  )\r
{\r
  EFI_PEI_SERVICES  **PeiServices;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  return (*PeiServices)->GetBootMode (PeiServices, BootMode);\r
}\r
\r
/**\r
  This service enables PEIMs to update the boot mode variable.\r
\r
  @param  BootMode              The value of the boot mode to set.\r
\r
  @retval EFI_SUCCESS           The value was successfully updated\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiServicesSetBootMode (\r
  IN EFI_BOOT_MODE              BootMode\r
  )\r
{\r
  EFI_PEI_SERVICES  **PeiServices;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  return (*PeiServices)->SetBootMode (PeiServices, BootMode);\r
}\r
\r
/**\r
  This service enables a PEIM to ascertain the address of the list of HOBs in memory.\r
\r
  @param  HobList               A pointer to the list of HOBs that the PEI Foundation will initialize.\r
\r
  @retval EFI_SUCCESS           The list was successfully returned.\r
  @retval EFI_NOT_AVAILABLE_YET The HOB list is not yet published.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiServicesGetHobList (\r
  IN OUT VOID                   **HobList\r
  )\r
{\r
  EFI_PEI_SERVICES  **PeiServices;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  return (*PeiServices)->GetHobList (PeiServices, HobList);\r
}\r
\r
/**\r
  This service enables PEIMs to create various types of HOBs.\r
\r
  @param  Type                  The type of HOB to be installed.\r
  @param  Length                The length of the HOB to be added.\r
  @param  Hob                   The address of a pointer that will contain the HOB header.\r
\r
  @retval EFI_SUCCESS           The HOB was successfully created.\r
  @retval EFI_OUT_OF_RESOURCES  There is no additional space for HOB creation.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiServicesCreateHob (\r
  IN UINT16                     Type,\r
  IN UINT16                     Length,\r
  IN OUT VOID                   **Hob\r
  )\r
{\r
  EFI_PEI_SERVICES  **PeiServices;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  return (*PeiServices)->CreateHob (PeiServices, Type, Length, Hob);\r
}\r
\r
/**\r
  This service enables PEIMs to discover additional firmware volumes.\r
\r
  @param  Instance              This instance of the firmware volume to find.  The value 0 is the\r
                                Boot Firmware Volume (BFV).\r
  @param  FwVolHeader           Pointer to the firmware volume header of the volume to return.\r
\r
  @retval EFI_SUCCESS           The volume was found.\r
  @retval EFI_NOT_FOUND         The volume was not found.\r
  @retval EFI_INVALID_PARAMETER FwVolHeader is NULL.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiServicesFfsFindNextVolume (\r
  IN UINTN                          Instance,\r
  IN OUT EFI_FIRMWARE_VOLUME_HEADER **FwVolHeader\r
  )\r
{\r
  EFI_PEI_SERVICES  **PeiServices;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  return (*PeiServices)->FfsFindNextVolume (PeiServices, Instance, FwVolHeader);\r
}\r
\r
/**\r
  This service enables PEIMs to discover additional firmware files.\r
\r
  @param  SearchType            A filter to find files only of this type.\r
  @param  FwVolHeader           Pointer to the firmware volume header of the volume to search.\r
                                This parameter must point to a valid FFS volume.\r
  @param  FileHeader            Pointer to the current file from which to begin searching.\r
\r
  @retval EFI_SUCCESS           The file was found.\r
  @retval EFI_NOT_FOUND         The file was not found.\r
  @retval EFI_NOT_FOUND         The header checksum was not zero.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiServicesFfsFindNextFile (\r
  IN EFI_FV_FILETYPE            SearchType,\r
  IN EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader,\r
  IN OUT EFI_FFS_FILE_HEADER    **FileHeader\r
  )\r
{\r
  EFI_PEI_SERVICES  **PeiServices;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  return (*PeiServices)->FfsFindNextFile (PeiServices, SearchType, FwVolHeader, FileHeader);\r
}\r
\r
/**\r
  This service enables PEIMs to discover sections of a given type within a valid FFS file.\r
\r
  @param  SearchType            The value of the section type to find.\r
  @param  FfsFileHeader         A pointer to the file header that contains the set of sections to\r
                                be searched.\r
  @param  SectionData           A pointer to the discovered section, if successful.\r
\r
  @retval EFI_SUCCESS           The section was found.\r
  @retval EFI_NOT_FOUND         The section was not found.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiServicesFfsFindSectionData (\r
  IN EFI_SECTION_TYPE           SectionType,\r
  IN EFI_FFS_FILE_HEADER        *FfsFileHeader,\r
  IN OUT VOID                   **SectionData\r
  )\r
{\r
  EFI_PEI_SERVICES  **PeiServices;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  return (*PeiServices)->FfsFindSectionData (PeiServices, SectionType, FfsFileHeader, SectionData);\r
}\r
\r
/**\r
  This service enables PEIMs to register the permanent memory configuration\r
  that has been initialized with the PEI Foundation.\r
\r
  @param  MemoryBegin           The value of a region of installed memory.\r
  @param  MemoryLength          The corresponding length of a region of installed memory.\r
\r
  @retval EFI_SUCCESS           The region was successfully installed in a HOB.\r
  @retval EFI_INVALID_PARAMETER MemoryBegin and MemoryLength are illegal for this system.\r
  @retval EFI_OUT_OF_RESOURCES  There is no additional space for HOB creation.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiServicesInstallPeiMemory (\r
  IN EFI_PHYSICAL_ADDRESS       MemoryBegin,\r
  IN UINT64                     MemoryLength\r
  )\r
{\r
  EFI_PEI_SERVICES  **PeiServices;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  return (*PeiServices)->InstallPeiMemory (PeiServices, MemoryBegin, MemoryLength);\r
}\r
\r
/**\r
  This service enables PEIMs to allocate memory after the permanent memory has been installed by a\r
  PEIM.\r
\r
  @param  MemoryType            Type of memory to allocate.\r
  @param  Pages                 Number of pages to allocate.\r
  @param  Memory                Pointer of memory allocated.\r
\r
  @retval EFI_SUCCESS           The memory range was successfully allocated.\r
  @retval EFI_INVALID_PARAMETER Type is not equal to AllocateAnyPages.\r
  @retval EFI_NOT_AVAILABLE_YET Called with permanent memory not available.\r
  @retval EFI_OUT_OF_RESOURCES  The pages could not be allocated.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiServicesAllocatePages (\r
  IN EFI_MEMORY_TYPE            MemoryType,\r
  IN UINTN                      Pages,\r
  IN OUT EFI_PHYSICAL_ADDRESS   *Memory\r
  )\r
{\r
  EFI_PEI_SERVICES  **PeiServices;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  return (*PeiServices)->AllocatePages (PeiServices, MemoryType, Pages, Memory);\r
}\r
\r
/**\r
  This service allocates memory from the Hand-Off Block (HOB) heap.\r
\r
  @param  Size                  The number of bytes to allocate from the pool.\r
  @param  Buffer                If the call succeeds, a pointer to a pointer to the allocate\r
                                buffer; undefined otherwise.\r
\r
  @retval EFI_SUCCESS           The allocation was successful\r
  @retval EFI_OUT_OF_RESOURCES  There is not enough heap to allocate the requested size.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiServicesAllocatePool (\r
  IN UINTN                      Size,\r
  OUT VOID                      **Buffer\r
  )\r
{\r
  EFI_PEI_SERVICES  **PeiServices;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  return (*PeiServices)->AllocatePool (PeiServices, Size, Buffer);\r
}\r
\r
/**\r
  This service resets the entire platform, including all processors and devices, and reboots the\r
  system.\r
\r
  @retval EFI_NOT_AVAILABLE_YET The service has not been installed yet.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiServicesResetSystem (\r
  VOID\r
  )\r
{\r
  EFI_PEI_SERVICES  **PeiServices;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  return (*PeiServices)->ResetSystem (PeiServices);\r
}\r
Commit	Line	Data
738ec565	1	/** @file\r
	2	Implementation for PEI Services Library.\r
	3	\r
	4	Copyright (c) 2006 - 2007, Intel Corporation<BR>\r
	5	All rights reserved. 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
738ec565	13	**/\r
	14	\r
	15	//\r
c7d265a9	16	// The package level header files this module uses\r
738ec565	17	//\r
c7d265a9	18	#include <PiPei.h>\r
	19	//\r
	20	// The protocols, PPI and GUID defintions for this module\r
	21	//\r
	22	//\r
	23	// The Library classes this module consumes\r
	24	//\r
	25	#include <Library/PeiServicesLib.h>\r
	26	#include <Library/PeiServicesTablePointerLib.h>\r
738ec565	27	\r
	28	/**\r
	29	This service enables a given PEIM to register an interface into the PEI Foundation.\r
	30	\r
	31	@param PpiList A pointer to the list of interfaces that the caller shall install.\r
	32	\r
	33	@retval EFI_SUCCESS The interface was successfully installed.\r
	34	@retval EFI_INVALID_PARAMETER The PpiList pointer is NULL.\r
	35	@retval EFI_INVALID_PARAMETER Any of the PEI PPI descriptors in the list do not have the\r
	36	EFI_PEI_PPI_DESCRIPTOR_PPI bit set in the Flags field.\r
	37	@retval EFI_OUT_OF_RESOURCES There is no additional space in the PPI database.\r
	38	\r
	39	**/\r
	40	EFI_STATUS\r
	41	EFIAPI\r
	42	PeiServicesInstallPpi (\r
	43	IN EFI_PEI_PPI_DESCRIPTOR *PpiList\r
	44	)\r
	45	{\r
	46	EFI_PEI_SERVICES **PeiServices;\r
	47	\r
	48	PeiServices = GetPeiServicesTablePointer ();\r
	49	return (*PeiServices)->InstallPpi (PeiServices, PpiList);\r
	50	}\r
	51	\r
	52	/**\r
	53	This service enables PEIMs to replace an entry in the PPI database with an alternate entry.\r
	54	\r
	55	@param OldPpi Pointer to the old PEI PPI Descriptors.\r
	56	@param NewPpi Pointer to the new PEI PPI Descriptors.\r
	57	\r
	58	@retval EFI_SUCCESS The interface was successfully installed.\r
	59	@retval EFI_INVALID_PARAMETER The OldPpi or NewPpi is NULL.\r
	60	@retval EFI_INVALID_PARAMETER Any of the PEI PPI descriptors in the list do not have the\r
	61	EFI_PEI_PPI_DESCRIPTOR_PPI bit set in the Flags field.\r
	62	@retval EFI_OUT_OF_RESOURCES There is no additional space in the PPI database.\r
	63	@retval EFI_NOT_FOUND The PPI for which the reinstallation was requested has not been\r
	64	installed.\r
	65	\r
	66	**/\r
	67	EFI_STATUS\r
	68	EFIAPI\r
	69	PeiServicesReInstallPpi (\r
	70	IN EFI_PEI_PPI_DESCRIPTOR *OldPpi,\r
	71	IN EFI_PEI_PPI_DESCRIPTOR *NewPpi\r
	72	)\r
	73	{\r
	74	EFI_PEI_SERVICES **PeiServices;\r
	75	\r
	76	PeiServices = GetPeiServicesTablePointer ();\r
	77	return (*PeiServices)->ReInstallPpi (PeiServices, OldPpi, NewPpi);\r
	78	}\r
	79	\r
	80	/**\r
	81	This service enables PEIMs to discover a given instance of an interface.\r
	82	\r
	83	@param Guid A pointer to the GUID whose corresponding interface needs to be\r
	84	found.\r
	85	@param Instance The N-th instance of the interface that is required.\r
	86	@param PpiDescriptor A pointer to instance of the EFI_PEI_PPI_DESCRIPTOR.\r
	87	@param Ppi A pointer to the instance of the interface.\r
	88	\r
	89	@retval EFI_SUCCESS The interface was successfully returned.\r
	90	@retval EFI_NOT_FOUND The PPI descriptor is not found in the database.\r
91	\r
92	**/\r
93	EFI_STATUS\r
94	EFIAPI\r
95	PeiServicesLocatePpi (\r
96	IN EFI_GUID *Guid,\r
97	IN UINTN Instance,\r
98	IN OUT EFI_PEI_PPI_DESCRIPTOR **PpiDescriptor,\r
99	IN OUT VOID **Ppi\r
100	)\r
101	{\r
102	EFI_PEI_SERVICES **PeiServices;\r
103	\r
104	PeiServices = GetPeiServicesTablePointer ();\r
105	return (*PeiServices)->LocatePpi (PeiServices, Guid, Instance, PpiDescriptor, Ppi);\r
106	}\r
107	\r
108	/**\r
109	This service enables PEIMs to register a given service to be invoked when another service is\r
110	installed or reinstalled.\r
111	\r
112	@param NotifyList A pointer to the list of notification interfaces that the caller\r
113	shall install.\r
114	\r
115	@retval EFI_SUCCESS The interface was successfully installed.\r
116	@retval EFI_INVALID_PARAMETER The NotifyList pointer is NULL.\r
117	@retval EFI_INVALID_PARAMETER Any of the PEI notify descriptors in the list do not have the\r
118	EFI_PEI_PPI_DESCRIPTOR_NOTIFY_TYPES bit set in the Flags field.\r
119	@retval EFI_OUT_OF_RESOURCES There is no additional space in the PPI database.\r
120	\r
121	**/\r
122	EFI_STATUS\r
123	EFIAPI\r
124	PeiServicesNotifyPpi (\r
125	IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyList\r
126	)\r
127	{\r
128	EFI_PEI_SERVICES **PeiServices;\r
129	\r
130	PeiServices = GetPeiServicesTablePointer ();\r
131	return (*PeiServices)->NotifyPpi (PeiServices, NotifyList);\r
132	}\r
133	\r
134	/**\r
135	This service enables PEIMs to ascertain the present value of the boot mode.\r
136	\r
137	@param BootMode A pointer to contain the value of the boot mode.\r
138	\r
139	@retval EFI_SUCCESS The boot mode was returned successfully.\r
140	@retval EFI_INVALID_PARAMETER BootMode is NULL.\r
141	\r
142	**/\r
143	EFI_STATUS\r
144	EFIAPI\r
145	PeiServicesGetBootMode (\r
146	IN OUT EFI_BOOT_MODE *BootMode\r
147	)\r
148	{\r
149	EFI_PEI_SERVICES **PeiServices;\r
150	\r
151	PeiServices = GetPeiServicesTablePointer ();\r
152	return (*PeiServices)->GetBootMode (PeiServices, BootMode);\r
153	}\r
154	\r
155	/**\r
156	This service enables PEIMs to update the boot mode variable.\r
157	\r
158	@param BootMode The value of the boot mode to set.\r
159	\r
160	@retval EFI_SUCCESS The value was successfully updated\r
161	\r
162	**/\r
163	EFI_STATUS\r
164	EFIAPI\r
165	PeiServicesSetBootMode (\r
166	IN EFI_BOOT_MODE BootMode\r
167	)\r
168	{\r
169	EFI_PEI_SERVICES **PeiServices;\r
170	\r
171	PeiServices = GetPeiServicesTablePointer ();\r
172	return (*PeiServices)->SetBootMode (PeiServices, BootMode);\r
173	}\r
174	\r
175	/**\r
176	This service enables a PEIM to ascertain the address of the list of HOBs in memory.\r
177	\r
178	@param HobList A pointer to the list of HOBs that the PEI Foundation will initialize.\r
179	\r
180	@retval EFI_SUCCESS The list was successfully returned.\r
181	@retval EFI_NOT_AVAILABLE_YET The HOB list is not yet published.\r
182	\r
183	**/\r
184	EFI_STATUS\r
185	EFIAPI\r
186	PeiServicesGetHobList (\r
187	IN OUT VOID **HobList\r
188	)\r
189	{\r
190	EFI_PEI_SERVICES **PeiServices;\r
191	\r
192	PeiServices = GetPeiServicesTablePointer ();\r
193	return (*PeiServices)->GetHobList (PeiServices, HobList);\r
194	}\r
195	\r
196	/**\r
197	This service enables PEIMs to create various types of HOBs.\r
198	\r
199	@param Type The type of HOB to be installed.\r
200	@param Length The length of the HOB to be added.\r
201	@param Hob The address of a pointer that will contain the HOB header.\r
202	\r
203	@retval EFI_SUCCESS The HOB was successfully created.\r
204	@retval EFI_OUT_OF_RESOURCES There is no additional space for HOB creation.\r
205	\r
206	**/\r
207	EFI_STATUS\r
208	EFIAPI\r
209	PeiServicesCreateHob (\r
210	IN UINT16 Type,\r
211	IN UINT16 Length,\r
212	IN OUT VOID **Hob\r
213	)\r
214	{\r
215	EFI_PEI_SERVICES **PeiServices;\r
216	\r
217	PeiServices = GetPeiServicesTablePointer ();\r
218	return (*PeiServices)->CreateHob (PeiServices, Type, Length, Hob);\r
219	}\r
220	\r
221	/**\r
222	This service enables PEIMs to discover additional firmware volumes.\r
223	\r
224	@param Instance This instance of the firmware volume to find. The value 0 is the\r
225	Boot Firmware Volume (BFV).\r
226	@param FwVolHeader Pointer to the firmware volume header of the volume to return.\r
227	\r
228	@retval EFI_SUCCESS The volume was found.\r
229	@retval EFI_NOT_FOUND The volume was not found.\r
230	@retval EFI_INVALID_PARAMETER FwVolHeader is NULL.\r
231	\r
232	**/\r
233	EFI_STATUS\r
234	EFIAPI\r
235	PeiServicesFfsFindNextVolume (\r
236	IN UINTN Instance,\r
237	IN OUT EFI_FIRMWARE_VOLUME_HEADER **FwVolHeader\r
238	)\r
239	{\r
240	EFI_PEI_SERVICES **PeiServices;\r
241	\r
242	PeiServices = GetPeiServicesTablePointer ();\r
243	return (*PeiServices)->FfsFindNextVolume (PeiServices, Instance, FwVolHeader);\r
244	}\r
245	\r
246	/**\r
247	This service enables PEIMs to discover additional firmware files.\r
248	\r
249	@param SearchType A filter to find files only of this type.\r
250	@param FwVolHeader Pointer to the firmware volume header of the volume to search.\r
251	This parameter must point to a valid FFS volume.\r
252	@param FileHeader Pointer to the current file from which to begin searching.\r
253	\r
254	@retval EFI_SUCCESS The file was found.\r
255	@retval EFI_NOT_FOUND The file was not found.\r
256	@retval EFI_NOT_FOUND The header checksum was not zero.\r
257	\r
258	**/\r
259	EFI_STATUS\r
260	EFIAPI\r
261	PeiServicesFfsFindNextFile (\r
262	IN EFI_FV_FILETYPE SearchType,\r
263	IN EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader,\r
264	IN OUT EFI_FFS_FILE_HEADER **FileHeader\r
265	)\r
266	{\r
267	EFI_PEI_SERVICES **PeiServices;\r
268	\r
269	PeiServices = GetPeiServicesTablePointer ();\r
270	return (*PeiServices)->FfsFindNextFile (PeiServices, SearchType, FwVolHeader, FileHeader);\r
271	}\r
272	\r
273	/**\r
274	This service enables PEIMs to discover sections of a given type within a valid FFS file.\r
275	\r
276	@param SearchType The value of the section type to find.\r
277	@param FfsFileHeader A pointer to the file header that contains the set of sections to\r
278	be searched.\r
279	@param SectionData A pointer to the discovered section, if successful.\r
280	\r
281	@retval EFI_SUCCESS The section was found.\r
282	@retval EFI_NOT_FOUND The section was not found.\r
283	\r
284	**/\r
285	EFI_STATUS\r
286	EFIAPI\r
287	PeiServicesFfsFindSectionData (\r
288	IN EFI_SECTION_TYPE SectionType,\r
289	IN EFI_FFS_FILE_HEADER *FfsFileHeader,\r
290	IN OUT VOID **SectionData\r
291	)\r
292	{\r
293	EFI_PEI_SERVICES **PeiServices;\r
294	\r
295	PeiServices = GetPeiServicesTablePointer ();\r
296	return (*PeiServices)->FfsFindSectionData (PeiServices, SectionType, FfsFileHeader, SectionData);\r
297	}\r
298	\r
299	/**\r
300	This service enables PEIMs to register the permanent memory configuration\r
301	that has been initialized with the PEI Foundation.\r
302	\r
303	@param MemoryBegin The value of a region of installed memory.\r
304	@param MemoryLength The corresponding length of a region of installed memory.\r
305	\r
306	@retval EFI_SUCCESS The region was successfully installed in a HOB.\r
307	@retval EFI_INVALID_PARAMETER MemoryBegin and MemoryLength are illegal for this system.\r
308	@retval EFI_OUT_OF_RESOURCES There is no additional space for HOB creation.\r
309	\r
310	**/\r
311	EFI_STATUS\r
312	EFIAPI\r
313	PeiServicesInstallPeiMemory (\r
314	IN EFI_PHYSICAL_ADDRESS MemoryBegin,\r
315	IN UINT64 MemoryLength\r
316	)\r
317	{\r
318	EFI_PEI_SERVICES **PeiServices;\r
319	\r
320	PeiServices = GetPeiServicesTablePointer ();\r
321	return (*PeiServices)->InstallPeiMemory (PeiServices, MemoryBegin, MemoryLength);\r
322	}\r
323	\r
324	/**\r
325	This service enables PEIMs to allocate memory after the permanent memory has been installed by a\r
326	PEIM.\r
327	\r
328	@param MemoryType Type of memory to allocate.\r
329	@param Pages Number of pages to allocate.\r
330	@param Memory Pointer of memory allocated.\r
331	\r
332	@retval EFI_SUCCESS The memory range was successfully allocated.\r
333	@retval EFI_INVALID_PARAMETER Type is not equal to AllocateAnyPages.\r
334	@retval EFI_NOT_AVAILABLE_YET Called with permanent memory not available.\r
335	@retval EFI_OUT_OF_RESOURCES The pages could not be allocated.\r
336	\r
337	**/\r
338	EFI_STATUS\r
339	EFIAPI\r
340	PeiServicesAllocatePages (\r
341	IN EFI_MEMORY_TYPE MemoryType,\r
342	IN UINTN Pages,\r
343	IN OUT EFI_PHYSICAL_ADDRESS *Memory\r
344	)\r
345	{\r
346	EFI_PEI_SERVICES **PeiServices;\r
347	\r
348	PeiServices = GetPeiServicesTablePointer ();\r
349	return (*PeiServices)->AllocatePages (PeiServices, MemoryType, Pages, Memory);\r
350	}\r
351	\r
352	/**\r
353	This service allocates memory from the Hand-Off Block (HOB) heap.\r
354	\r
355	@param Size The number of bytes to allocate from the pool.\r
356	@param Buffer If the call succeeds, a pointer to a pointer to the allocate\r
357	buffer; undefined otherwise.\r
358	\r
359	@retval EFI_SUCCESS The allocation was successful\r
360	@retval EFI_OUT_OF_RESOURCES There is not enough heap to allocate the requested size.\r
361	\r
362	**/\r
363	EFI_STATUS\r
364	EFIAPI\r
365	PeiServicesAllocatePool (\r
366	IN UINTN Size,\r
367	OUT VOID **Buffer\r
368	)\r
369	{\r
370	EFI_PEI_SERVICES **PeiServices;\r
371	\r
372	PeiServices = GetPeiServicesTablePointer ();\r
373	return (*PeiServices)->AllocatePool (PeiServices, Size, Buffer);\r
374	}\r
375	\r
376	/**\r
377	This service resets the entire platform, including all processors and devices, and reboots the\r
378	system.\r
379	\r
380	@retval EFI_NOT_AVAILABLE_YET The service has not been installed yet.\r
381	\r
382	**/\r
383	EFI_STATUS\r
384	EFIAPI\r
385	PeiServicesResetSystem (\r
386	VOID\r
387	)\r
388	{\r
389	EFI_PEI_SERVICES **PeiServices;\r
390	\r
391	PeiServices = GetPeiServicesTablePointer ();\r
392	return (*PeiServices)->ResetSystem (PeiServices);\r
393	}\r