[mirror_edk2.git] / UefiCpuPkg / Library / CpuExceptionHandlerLib / CpuExceptionCommon.h

/** @file\r
  Common header file for CPU Exception Handler Library.\r
\r
  Copyright (c) 2012 - 2019, 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
#ifndef _CPU_EXCEPTION_COMMON_H_\r
#define _CPU_EXCEPTION_COMMON_H_\r
\r
#include <Ppi/VectorHandoffInfo.h>\r
#include <Protocol/Cpu.h>\r
#include <Library/BaseLib.h>\r
#include <Library/SerialPortLib.h>\r
#include <Library/PrintLib.h>\r
#include <Library/LocalApicLib.h>\r
#include <Library/PeCoffGetEntryPointLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/SynchronizationLib.h>\r
#include <Library/CpuExceptionHandlerLib.h>\r
\r
#define  CPU_EXCEPTION_NUM          32\r
#define  CPU_INTERRUPT_NUM         256\r
#define  HOOKAFTER_STUB_SIZE        16\r
\r
//\r
// Exception Error Code of Page-Fault Exception\r
//\r
#define IA32_PF_EC_P                BIT0\r
#define IA32_PF_EC_WR               BIT1\r
#define IA32_PF_EC_US               BIT2\r
#define IA32_PF_EC_RSVD             BIT3\r
#define IA32_PF_EC_ID               BIT4\r
#define IA32_PF_EC_PK               BIT5\r
#define IA32_PF_EC_SS               BIT6\r
#define IA32_PF_EC_SGX              BIT15\r
\r
#include "ArchInterruptDefs.h"\r
\r
#define CPU_STACK_SWITCH_EXCEPTION_NUMBER \\r
  FixedPcdGetSize (PcdCpuStackSwitchExceptionList)\r
\r
#define CPU_STACK_SWITCH_EXCEPTION_LIST \\r
  FixedPcdGetPtr (PcdCpuStackSwitchExceptionList)\r
\r
#define CPU_KNOWN_GOOD_STACK_SIZE \\r
  FixedPcdGet32 (PcdCpuKnownGoodStackSize)\r
\r
#define CPU_TSS_GDT_SIZE (SIZE_2KB + CPU_TSS_DESC_SIZE + CPU_TSS_SIZE)\r
\r
//\r
// Record exception handler information\r
//\r
typedef struct {\r
  UINTN ExceptionStart;\r
  UINTN ExceptionStubHeaderSize;\r
  UINTN HookAfterStubHeaderStart;\r
} EXCEPTION_HANDLER_TEMPLATE_MAP;\r
\r
typedef struct {\r
  UINTN                       IdtEntryCount;\r
  SPIN_LOCK                   DisplayMessageSpinLock;\r
  RESERVED_VECTORS_DATA       *ReservedVectors;\r
  EFI_CPU_INTERRUPT_HANDLER   *ExternalInterruptHandler;\r
} EXCEPTION_HANDLER_DATA;\r
\r
extern CONST UINT32                mErrorCodeFlag;\r
extern CONST UINTN                 mDoFarReturnFlag;\r
\r
/**\r
  Return address map of exception handler template so that C code can generate\r
  exception tables.\r
\r
  @param AddressMap  Pointer to a buffer where the address map is returned.\r
**/\r
VOID\r
EFIAPI\r
AsmGetTemplateAddressMap (\r
  OUT EXCEPTION_HANDLER_TEMPLATE_MAP *AddressMap\r
  );\r
\r
/**\r
  Return address map of exception handler template so that C code can generate\r
  exception tables.\r
\r
  @param IdtEntry          Pointer to IDT entry to be updated.\r
  @param InterruptHandler  IDT handler value.\r
\r
**/\r
VOID\r
ArchUpdateIdtEntry (\r
  IN IA32_IDT_GATE_DESCRIPTOR        *IdtEntry,\r
  IN UINTN                           InterruptHandler\r
  );\r
\r
/**\r
  Read IDT handler value from IDT entry.\r
\r
  @param IdtEntry          Pointer to IDT entry to be read.\r
\r
**/\r
UINTN\r
ArchGetIdtHandler (\r
  IN IA32_IDT_GATE_DESCRIPTOR        *IdtEntry\r
  );\r
\r
/**\r
  Prints a message to the serial port.\r
\r
  @param  Format      Format string for the message to print.\r
  @param  ...         Variable argument list whose contents are accessed\r
                      based on the format string specified by Format.\r
\r
**/\r
VOID\r
EFIAPI\r
InternalPrintMessage (\r
  IN  CONST CHAR8  *Format,\r
  ...\r
  );\r
\r
/**\r
  Find and display image base address and return image base and its entry point.\r
\r
  @param CurrentEip      Current instruction pointer.\r
\r
**/\r
VOID\r
DumpModuleImageInfo (\r
  IN  UINTN              CurrentEip\r
  );\r
\r
/**\r
  Display CPU information.\r
\r
  @param ExceptionType  Exception type.\r
  @param SystemContext  Pointer to EFI_SYSTEM_CONTEXT.\r
**/\r
VOID\r
DumpImageAndCpuContent (\r
  IN EFI_EXCEPTION_TYPE   ExceptionType,\r
  IN EFI_SYSTEM_CONTEXT   SystemContext\r
  );\r
\r
/**\r
  Internal worker function to initialize exception handler.\r
\r
  @param[in]      VectorInfo            Pointer to reserved vector list.\r
  @param[in, out] ExceptionHandlerData  Pointer to exception handler data.\r
\r
  @retval EFI_SUCCESS           CPU Exception Entries have been successfully initialized\r
                                with default exception handlers.\r
  @retval EFI_INVALID_PARAMETER VectorInfo includes the invalid content if VectorInfo is not NULL.\r
  @retval EFI_UNSUPPORTED       This function is not supported.\r
\r
**/\r
EFI_STATUS\r
InitializeCpuExceptionHandlersWorker (\r
  IN EFI_VECTOR_HANDOFF_INFO       *VectorInfo OPTIONAL,\r
  IN OUT EXCEPTION_HANDLER_DATA    *ExceptionHandlerData\r
  );\r
\r
/**\r
  Registers a function to be called from the processor interrupt handler.\r
\r
  @param[in]  InterruptType        Defines which interrupt or exception to hook.\r
  @param[in]  InterruptHandler     A pointer to a function of type EFI_CPU_INTERRUPT_HANDLER that is called\r
                                   when a processor interrupt occurs. If this parameter is NULL, then the handler\r
                                   will be uninstalled\r
  @param[in] ExceptionHandlerData  Pointer to exception handler data.\r
\r
  @retval EFI_SUCCESS           The handler for the processor interrupt was successfully installed or uninstalled.\r
  @retval EFI_ALREADY_STARTED   InterruptHandler is not NULL, and a handler for InterruptType was\r
                                previously installed.\r
  @retval EFI_INVALID_PARAMETER InterruptHandler is NULL, and a handler for InterruptType was not\r
                                previously installed.\r
  @retval EFI_UNSUPPORTED       The interrupt specified by InterruptType is not supported,\r
                                or this function is not supported.\r
**/\r
EFI_STATUS\r
RegisterCpuInterruptHandlerWorker (\r
  IN EFI_EXCEPTION_TYPE            InterruptType,\r
  IN EFI_CPU_INTERRUPT_HANDLER     InterruptHandler,\r
  IN EXCEPTION_HANDLER_DATA        *ExceptionHandlerData\r
  );\r
\r
/**\r
  Internal worker function to update IDT entries accordling to vector attributes.\r
\r
  @param[in] IdtTable              Pointer to IDT table.\r
  @param[in] TemplateMap           Pointer to a buffer where the address map is\r
                                   returned.\r
  @param[in] ExceptionHandlerData  Pointer to exception handler data.\r
\r
**/\r
VOID\r
UpdateIdtTable (\r
  IN IA32_IDT_GATE_DESCRIPTOR        *IdtTable,\r
  IN EXCEPTION_HANDLER_TEMPLATE_MAP  *TemplateMap,\r
  IN EXCEPTION_HANDLER_DATA          *ExceptionHandlerData\r
  );\r
\r
/**\r
  Save CPU exception context when handling EFI_VECTOR_HANDOFF_HOOK_AFTER case.\r
\r
  @param[in] ExceptionType        Exception type.\r
  @param[in] SystemContext        Pointer to EFI_SYSTEM_CONTEXT.\r
  @param[in] ExceptionHandlerData Pointer to exception handler data.\r
**/\r
VOID\r
ArchSaveExceptionContext (\r
  IN UINTN                        ExceptionType,\r
  IN EFI_SYSTEM_CONTEXT           SystemContext,\r
  IN EXCEPTION_HANDLER_DATA       *ExceptionHandlerData\r
  );\r
\r
/**\r
  Restore CPU exception context when handling EFI_VECTOR_HANDOFF_HOOK_AFTER case.\r
\r
  @param[in] ExceptionType        Exception type.\r
  @param[in] SystemContext        Pointer to EFI_SYSTEM_CONTEXT.\r
  @param[in] ExceptionHandlerData Pointer to exception handler data.\r
**/\r
VOID\r
ArchRestoreExceptionContext (\r
  IN UINTN                        ExceptionType,\r
  IN EFI_SYSTEM_CONTEXT           SystemContext,\r
  IN EXCEPTION_HANDLER_DATA       *ExceptionHandlerData\r
  );\r
\r
/**\r
  Fix up the vector number and function address in the vector code.\r
\r
  @param[in] NewVectorAddr   New vector handler address.\r
  @param[in] VectorNum       Index of vector.\r
  @param[in] OldVectorAddr   Old vector handler address.\r
\r
**/\r
VOID\r
EFIAPI\r
AsmVectorNumFixup (\r
  IN VOID    *NewVectorAddr,\r
  IN UINT8   VectorNum,\r
  IN VOID    *OldVectorAddr\r
  );\r
\r
/**\r
  Read and save reserved vector information\r
\r
  @param[in]  VectorInfo        Pointer to reserved vector list.\r
  @param[out] ReservedVector    Pointer to reserved vector data buffer.\r
  @param[in]  VectorCount       Vector number to be updated.\r
\r
  @return EFI_SUCCESS           Read and save vector info successfully.\r
  @retval EFI_INVALID_PARAMETER VectorInfo includes the invalid content if VectorInfo is not NULL.\r
\r
**/\r
EFI_STATUS\r
ReadAndVerifyVectorInfo (\r
  IN  EFI_VECTOR_HANDOFF_INFO       *VectorInfo,\r
  OUT RESERVED_VECTORS_DATA         *ReservedVector,\r
  IN  UINTN                         VectorCount\r
  );\r
\r
/**\r
  Get ASCII format string exception name by exception type.\r
\r
  @param ExceptionType  Exception type.\r
\r
  @return  ASCII format string exception name.\r
**/\r
CONST CHAR8 *\r
GetExceptionNameStr (\r
  IN EFI_EXCEPTION_TYPE          ExceptionType\r
  );\r
\r
/**\r
  Internal worker function for common exception handler.\r
\r
  @param ExceptionType         Exception type.\r
  @param SystemContext         Pointer to EFI_SYSTEM_CONTEXT.\r
  @param ExceptionHandlerData  Pointer to exception handler data.\r
**/\r
VOID\r
CommonExceptionHandlerWorker (\r
  IN EFI_EXCEPTION_TYPE          ExceptionType,\r
  IN EFI_SYSTEM_CONTEXT          SystemContext,\r
  IN EXCEPTION_HANDLER_DATA      *ExceptionHandlerData\r
  );\r
\r
/**\r
  Setup separate stack for specific exceptions.\r
\r
  @param[in] StackSwitchData      Pointer to data required for setuping up\r
                                  stack switch.\r
\r
  @retval EFI_SUCCESS             The exceptions have been successfully\r
                                  initialized with new stack.\r
  @retval EFI_INVALID_PARAMETER   StackSwitchData contains invalid content.\r
**/\r
EFI_STATUS\r
ArchSetupExceptionStack (\r
  IN CPU_EXCEPTION_INIT_DATA        *StackSwitchData\r
  );\r
\r
/**\r
  Return address map of exception handler template so that C code can generate\r
  exception tables. The template is only for exceptions using task gate instead\r
  of interrupt gate.\r
\r
  @param AddressMap  Pointer to a buffer where the address map is returned.\r
**/\r
VOID\r
EFIAPI\r
AsmGetTssTemplateMap (\r
  OUT EXCEPTION_HANDLER_TEMPLATE_MAP  *AddressMap\r
  );\r
\r
#endif\r
\r
Commit	Line	Data
8f07f895	1	/** @file\r
	2	Common header file for CPU Exception Handler Library.\r
	3	\r
0d25074c	4	Copyright (c) 2012 - 2019, Intel Corporation. All rights reserved.<BR>\r
8f07f895	5	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
	13	**/\r
	14	\r
	15	#ifndef _CPU_EXCEPTION_COMMON_H_\r
	16	#define _CPU_EXCEPTION_COMMON_H_\r
	17	\r
e41aad15 JF	18	#include <Ppi/VectorHandoffInfo.h>\r
e41aad15 JF	19	#include <Protocol/Cpu.h>\r
8f07f895	20	#include <Library/BaseLib.h>\r
	21	#include <Library/SerialPortLib.h>\r
	22	#include <Library/PrintLib.h>\r
	23	#include <Library/LocalApicLib.h>\r
	24	#include <Library/PeCoffGetEntryPointLib.h>\r
e41aad15 JF	25	#include <Library/BaseMemoryLib.h>\r
e41aad15 JF	26	#include <Library/SynchronizationLib.h>\r
1b2f7b3e	27	#include <Library/CpuExceptionHandlerLib.h>\r
e41aad15 JF	28	\r
	29	#define CPU_EXCEPTION_NUM 32\r
	30	#define CPU_INTERRUPT_NUM 256\r
	31	#define HOOKAFTER_STUB_SIZE 16\r
	32	\r
1b2f7b3e JF	33	//\r
	34	// Exception Error Code of Page-Fault Exception\r
	35	//\r
	36	#define IA32_PF_EC_P BIT0\r
	37	#define IA32_PF_EC_WR BIT1\r
	38	#define IA32_PF_EC_US BIT2\r
	39	#define IA32_PF_EC_RSVD BIT3\r
	40	#define IA32_PF_EC_ID BIT4\r
	41	#define IA32_PF_EC_PK BIT5\r
0d25074c	42	#define IA32_PF_EC_SS BIT6\r
1b2f7b3e JF	43	#define IA32_PF_EC_SGX BIT15\r
1b2f7b3e JF	44	\r
e41aad15	45	#include "ArchInterruptDefs.h"\r
8f07f895	46	\r
0ff5aa9c JW	47	#define CPU_STACK_SWITCH_EXCEPTION_NUMBER \\r
	48	FixedPcdGetSize (PcdCpuStackSwitchExceptionList)\r
	49	\r
	50	#define CPU_STACK_SWITCH_EXCEPTION_LIST \\r
	51	FixedPcdGetPtr (PcdCpuStackSwitchExceptionList)\r
	52	\r
	53	#define CPU_KNOWN_GOOD_STACK_SIZE \\r
	54	FixedPcdGet32 (PcdCpuKnownGoodStackSize)\r
	55	\r
	56	#define CPU_TSS_GDT_SIZE (SIZE_2KB + CPU_TSS_DESC_SIZE + CPU_TSS_SIZE)\r
	57	\r
8f07f895	58	//\r
	59	// Record exception handler information\r
	60	//\r
	61	typedef struct {\r
	62	UINTN ExceptionStart;\r
	63	UINTN ExceptionStubHeaderSize;\r
e41aad15	64	UINTN HookAfterStubHeaderStart;\r
8f07f895	65	} EXCEPTION_HANDLER_TEMPLATE_MAP;\r
8f07f895	66	\r
2c5873fe JF	67	typedef struct {\r
	68	UINTN IdtEntryCount;\r
	69	SPIN_LOCK DisplayMessageSpinLock;\r
	70	RESERVED_VECTORS_DATA *ReservedVectors;\r
	71	EFI_CPU_INTERRUPT_HANDLER *ExternalInterruptHandler;\r
	72	} EXCEPTION_HANDLER_DATA;\r
	73	\r
e41aad15	74	extern CONST UINT32 mErrorCodeFlag;\r
e41aad15	75	extern CONST UINTN mDoFarReturnFlag;\r
8f07f895	76	\r
	77	/**\r
	78	Return address map of exception handler template so that C code can generate\r
	79	exception tables.\r
	80	\r
	81	@param AddressMap Pointer to a buffer where the address map is returned.\r
	82	**/\r
	83	VOID\r
	84	EFIAPI\r
e41aad15	85	AsmGetTemplateAddressMap (\r
8f07f895	86	OUT EXCEPTION_HANDLER_TEMPLATE_MAP *AddressMap\r
	87	);\r
	88	\r
	89	/**\r
e41aad15 JF	90	Return address map of exception handler template so that C code can generate\r
	91	exception tables.\r
	92	\r
	93	@param IdtEntry Pointer to IDT entry to be updated.\r
	94	@param InterruptHandler IDT handler value.\r
8f07f895	95	\r
	96	**/\r
	97	VOID\r
e41aad15 JF	98	ArchUpdateIdtEntry (\r
	99	IN IA32_IDT_GATE_DESCRIPTOR *IdtEntry,\r
	100	IN UINTN InterruptHandler\r
	101	);\r
	102	\r
	103	/**\r
	104	Read IDT handler value from IDT entry.\r
	105	\r
	106	@param IdtEntry Pointer to IDT entry to be read.\r
	107	\r
	108	**/\r
	109	UINTN\r
	110	ArchGetIdtHandler (\r
	111	IN IA32_IDT_GATE_DESCRIPTOR *IdtEntry\r
8f07f895	112	);\r
	113	\r
	114	/**\r
	115	Prints a message to the serial port.\r
	116	\r
	117	@param Format Format string for the message to print.\r
dd563742	118	@param ... Variable argument list whose contents are accessed\r
8f07f895	119	based on the format string specified by Format.\r
	120	\r
	121	**/\r
	122	VOID\r
	123	EFIAPI\r
	124	InternalPrintMessage (\r
	125	IN CONST CHAR8 *Format,\r
	126	...\r
	127	);\r
	128	\r
	129	/**\r
	130	Find and display image base address and return image base and its entry point.\r
dd563742	131	\r
a9c7ab95	132	@param CurrentEip Current instruction pointer.\r
dd563742	133	\r
8f07f895	134	**/\r
dd563742	135	VOID\r
1b2f7b3e JF	136	DumpModuleImageInfo (\r
1b2f7b3e JF	137	IN UINTN CurrentEip\r
8f07f895	138	);\r
	139	\r
	140	/**\r
	141	Display CPU information.\r
	142	\r
3f25e6ea	143	@param ExceptionType Exception type.\r
8f07f895	144	@param SystemContext Pointer to EFI_SYSTEM_CONTEXT.\r
	145	**/\r
	146	VOID\r
1b2f7b3e	147	DumpImageAndCpuContent (\r
e41aad15	148	IN EFI_EXCEPTION_TYPE ExceptionType,\r
8f07f895	149	IN EFI_SYSTEM_CONTEXT SystemContext\r
	150	);\r
	151	\r
e41aad15 JF	152	/**\r
	153	Internal worker function to initialize exception handler.\r
	154	\r
ab95e54d JF	155	@param[in] VectorInfo Pointer to reserved vector list.\r
ab95e54d JF	156	@param[in, out] ExceptionHandlerData Pointer to exception handler data.\r
dd563742 JF	157	\r
dd563742 JF	158	@retval EFI_SUCCESS CPU Exception Entries have been successfully initialized\r
e41aad15 JF	159	with default exception handlers.\r
	160	@retval EFI_INVALID_PARAMETER VectorInfo includes the invalid content if VectorInfo is not NULL.\r
	161	@retval EFI_UNSUPPORTED This function is not supported.\r
	162	\r
	163	**/\r
	164	EFI_STATUS\r
	165	InitializeCpuExceptionHandlersWorker (\r
ab95e54d JF	166	IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL,\r
ab95e54d JF	167	IN OUT EXCEPTION_HANDLER_DATA *ExceptionHandlerData\r
e41aad15 JF	168	);\r
	169	\r
	170	/**\r
	171	Registers a function to be called from the processor interrupt handler.\r
	172	\r
670f13af JF	173	@param[in] InterruptType Defines which interrupt or exception to hook.\r
	174	@param[in] InterruptHandler A pointer to a function of type EFI_CPU_INTERRUPT_HANDLER that is called\r
	175	when a processor interrupt occurs. If this parameter is NULL, then the handler\r
	176	will be uninstalled\r
	177	@param[in] ExceptionHandlerData Pointer to exception handler data.\r
e41aad15 JF	178	\r
	179	@retval EFI_SUCCESS The handler for the processor interrupt was successfully installed or uninstalled.\r
	180	@retval EFI_ALREADY_STARTED InterruptHandler is not NULL, and a handler for InterruptType was\r
	181	previously installed.\r
	182	@retval EFI_INVALID_PARAMETER InterruptHandler is NULL, and a handler for InterruptType was not\r
	183	previously installed.\r
	184	@retval EFI_UNSUPPORTED The interrupt specified by InterruptType is not supported,\r
	185	or this function is not supported.\r
3f25e6ea	186	**/\r
e41aad15 JF	187	EFI_STATUS\r
	188	RegisterCpuInterruptHandlerWorker (\r
	189	IN EFI_EXCEPTION_TYPE InterruptType,\r
670f13af JF	190	IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler,\r
670f13af JF	191	IN EXCEPTION_HANDLER_DATA *ExceptionHandlerData\r
e41aad15 JF	192	);\r
	193	\r
	194	/**\r
	195	Internal worker function to update IDT entries accordling to vector attributes.\r
	196	\r
9db15f81 JF	197	@param[in] IdtTable Pointer to IDT table.\r
	198	@param[in] TemplateMap Pointer to a buffer where the address map is\r
	199	returned.\r
	200	@param[in] ExceptionHandlerData Pointer to exception handler data.\r
e41aad15 JF	201	\r
	202	**/\r
	203	VOID\r
	204	UpdateIdtTable (\r
	205	IN IA32_IDT_GATE_DESCRIPTOR *IdtTable,\r
	206	IN EXCEPTION_HANDLER_TEMPLATE_MAP *TemplateMap,\r
9db15f81	207	IN EXCEPTION_HANDLER_DATA *ExceptionHandlerData\r
e41aad15 JF	208	);\r
	209	\r
	210	/**\r
	211	Save CPU exception context when handling EFI_VECTOR_HANDOFF_HOOK_AFTER case.\r
	212	\r
81b21fc2 JF	213	@param[in] ExceptionType Exception type.\r
	214	@param[in] SystemContext Pointer to EFI_SYSTEM_CONTEXT.\r
	215	@param[in] ExceptionHandlerData Pointer to exception handler data.\r
e41aad15 JF	216	**/\r
	217	VOID\r
	218	ArchSaveExceptionContext (\r
81b21fc2 JF	219	IN UINTN ExceptionType,\r
	220	IN EFI_SYSTEM_CONTEXT SystemContext,\r
	221	IN EXCEPTION_HANDLER_DATA *ExceptionHandlerData\r
e41aad15 JF	222	);\r
	223	\r
	224	/**\r
	225	Restore CPU exception context when handling EFI_VECTOR_HANDOFF_HOOK_AFTER case.\r
	226	\r
368c54e7 JF	227	@param[in] ExceptionType Exception type.\r
	228	@param[in] SystemContext Pointer to EFI_SYSTEM_CONTEXT.\r
	229	@param[in] ExceptionHandlerData Pointer to exception handler data.\r
e41aad15 JF	230	**/\r
	231	VOID\r
	232	ArchRestoreExceptionContext (\r
368c54e7 JF	233	IN UINTN ExceptionType,\r
	234	IN EFI_SYSTEM_CONTEXT SystemContext,\r
	235	IN EXCEPTION_HANDLER_DATA *ExceptionHandlerData\r
e41aad15 JF	236	);\r
	237	\r
	238	/**\r
07da1ac8	239	Fix up the vector number and function address in the vector code.\r
dd563742	240	\r
07da1ac8 AF	241	@param[in] NewVectorAddr New vector handler address.\r
	242	@param[in] VectorNum Index of vector.\r
	243	@param[in] OldVectorAddr Old vector handler address.\r
e41aad15 JF	244	\r
	245	**/\r
	246	VOID\r
	247	EFIAPI\r
	248	AsmVectorNumFixup (\r
07da1ac8 AF	249	IN VOID *NewVectorAddr,\r
	250	IN UINT8 VectorNum,\r
	251	IN VOID *OldVectorAddr\r
e41aad15 JF	252	);\r
	253	\r
	254	/**\r
	255	Read and save reserved vector information\r
dd563742	256	\r
e41aad15 JF	257	@param[in] VectorInfo Pointer to reserved vector list.\r
	258	@param[out] ReservedVector Pointer to reserved vector data buffer.\r
	259	@param[in] VectorCount Vector number to be updated.\r
dd563742	260	\r
e41aad15 JF	261	@return EFI_SUCCESS Read and save vector info successfully.\r
	262	@retval EFI_INVALID_PARAMETER VectorInfo includes the invalid content if VectorInfo is not NULL.\r
	263	\r
	264	**/\r
	265	EFI_STATUS\r
	266	ReadAndVerifyVectorInfo (\r
	267	IN EFI_VECTOR_HANDOFF_INFO *VectorInfo,\r
	268	OUT RESERVED_VECTORS_DATA *ReservedVector,\r
	269	IN UINTN VectorCount\r
	270	);\r
	271	\r
a51ee144 JF	272	/**\r
	273	Get ASCII format string exception name by exception type.\r
	274	\r
	275	@param ExceptionType Exception type.\r
	276	\r
	277	@return ASCII format string exception name.\r
	278	**/\r
	279	CONST CHAR8 *\r
	280	GetExceptionNameStr (\r
	281	IN EFI_EXCEPTION_TYPE ExceptionType\r
	282	);\r
	283	\r
44ecbc28 JF	284	/**\r
	285	Internal worker function for common exception handler.\r
	286	\r
	287	@param ExceptionType Exception type.\r
	288	@param SystemContext Pointer to EFI_SYSTEM_CONTEXT.\r
	289	@param ExceptionHandlerData Pointer to exception handler data.\r
	290	**/\r
	291	VOID\r
	292	CommonExceptionHandlerWorker (\r
dd563742	293	IN EFI_EXCEPTION_TYPE ExceptionType,\r
44ecbc28 JF	294	IN EFI_SYSTEM_CONTEXT SystemContext,\r
	295	IN EXCEPTION_HANDLER_DATA *ExceptionHandlerData\r
	296	);\r
	297	\r
0ff5aa9c JW	298	/**\r
	299	Setup separate stack for specific exceptions.\r
	300	\r
	301	@param[in] StackSwitchData Pointer to data required for setuping up\r
	302	stack switch.\r
	303	\r
	304	@retval EFI_SUCCESS The exceptions have been successfully\r
	305	initialized with new stack.\r
	306	@retval EFI_INVALID_PARAMETER StackSwitchData contains invalid content.\r
	307	**/\r
	308	EFI_STATUS\r
7c4207e9	309	ArchSetupExceptionStack (\r
0ff5aa9c JW	310	IN CPU_EXCEPTION_INIT_DATA *StackSwitchData\r
	311	);\r
	312	\r
	313	/**\r
	314	Return address map of exception handler template so that C code can generate\r
	315	exception tables. The template is only for exceptions using task gate instead\r
	316	of interrupt gate.\r
	317	\r
	318	@param AddressMap Pointer to a buffer where the address map is returned.\r
	319	**/\r
	320	VOID\r
	321	EFIAPI\r
	322	AsmGetTssTemplateMap (\r
	323	OUT EXCEPTION_HANDLER_TEMPLATE_MAP *AddressMap\r
	324	);\r
	325	\r
8f07f895	326	#endif\r
e41aad15	327	\r