UefiCpuPkg/ExceptionLib: Update UpdateIdtTable()

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

/** @file\r
  Common header file for CPU Exception Handler Library.\r
\r
  Copyright (c) 2012 - 2016, 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
\r
#define  CPU_EXCEPTION_NUM          32\r
#define  CPU_INTERRUPT_NUM         256\r
#define  HOOKAFTER_STUB_SIZE        16\r
\r
#include "ArchInterruptDefs.h"\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                 mImageAlignSize;\r
extern CONST UINTN                 mDoFarReturnFlag;\r
extern RESERVED_VECTORS_DATA       *mReservedVectors;\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
  @param EntryPoint      Return module entry point if module header is found.\r
  \r
  @return !0     Image base address.\r
  @return 0      Image header cannot be found.\r
**/\r
UINTN \r
FindModuleImageBase (\r
  IN  UINTN              CurrentEip,\r
  OUT UINTN              *EntryPoint\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
DumpCpuContent (\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
\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
  );\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
\r
**/\r
VOID\r
ArchSaveExceptionContext (\r
  IN UINTN                ExceptionType,\r
  IN EFI_SYSTEM_CONTEXT   SystemContext \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
\r
**/\r
VOID\r
ArchRestoreExceptionContext (\r
  IN UINTN                ExceptionType,\r
  IN EFI_SYSTEM_CONTEXT   SystemContext \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
#endif\r
\r