CpuIoPei

Function Table

Address	Name	Description
	CmosCheckMode
	GetPeiServicesTable
	GetDebugInstance
	CpuIoPeiEntryPoint
Library	helper: memset via compiler intrinsic
void	__cdecl SetMem(void buf, unsigned int count, char value)
Library	helper: memset32 via compiler intrinsic
void	__cdecl SetMem32(void buf, unsigned int count, int value)
Library	helper: memset32 for 2-dword fill pattern
int	__cdecl SetMem32Fill(int Buf, int Count, int Fill0, int Fill1)
Library	helper: memcpy with overlap handling
char	__cdecl CopyMem(char dst, char *src, unsigned int count)
No	overlap: copy dword-aligned first, then remainder
__int64	cdecl IoReadBufferFx(unsigned int16 Port, unsigned int Count, unsigned __int8 *Buffer)
__int64	cdecl IoReadPortWordString(unsigned int16 Port, unsigned int Count, unsigned __int16 *Buffer)
__int64	cdecl IoReadPortDwordString(unsigned int16 Port, unsigned int Count, unsigned int *Buffer)
__int64	cdecl IoWriteBufferByte(unsigned int16 Port, unsigned int Count, unsigned __int8 *Buffer)
__int64	cdecl IoWritePortWordString(unsigned int16 Port, unsigned int Count, unsigned __int16 *Buffer)
__int64	cdecl IoWritePortDwordString(unsigned int16 Port, unsigned int Count, unsigned int *Buffer)
int	fastcall IoReadPortWord(unsigned int16 Port)
unsigned	int16 fastcall IoWritePortWord(unsigned int16 Port, unsigned int16 Value)
unsigned	int32 fastcall IoReadPortDword(unsigned __int16 Port)
unsigned	int fastcall IoWritePortDword(unsigned int16 Port, unsigned int Value)
MMIO	Read - Word (aligned)
int	fastcall IoReadMmioWord(unsigned int16 *Address)
MMIO	Write - Word (aligned)
__int16	*fastcall IoWriteMmioWord(_WORD Address,** int16 Value)
MMIO	Read - Qword (aligned)
__int64	*__fastcall IoReadMmioQword(void Address)**
MMIO	Write - Qword (aligned)
int	*__cdecl IoWriteMmioQword(void Address, int Lo32, int Hi32)**
Unaligned	Read - 16-bit
__int16	*__thiscall ReadUnaligned16(void Buffer)**
Unaligned	Write - 16-bit
__int16	*fastcall WriteUnaligned16(_WORD Buffer,** int16 Value)
Unaligned	Read - 32-bit
int	*__thiscall ReadUnaligned32(void Buffer)**
Unaligned	Write - 32-bit
int	*__fastcall WriteUnaligned32(_DWORD Buffer, int Value)**
Unaligned	Read - 64-bit
__int64	*__thiscall ReadUnaligned64(void Buffer)**
Unaligned	Write - 64-bit
int	*__cdecl WriteUnaligned64(_DWORD Buffer, int Lo32, int Hi32)**
__int64	cdecl LShiftU64(int64 Value)
unsigned	int64 cdecl RShiftU64(unsigned __int64 Value)
CMOS	Check Mode: determine debug printing capabilities
Selects	RTC register 0x4A to read the debug mode.
Returns	0 (no debug), negative error codes, or status.
int	CmosCheckMode()
Get	PEI Services Table Pointer
Retrieves	via IDT entry at offset -4 from IDT base.
int	GetPeiServicesTable()
Read	IDTR (SIDT instruction)
void	__thiscall ReadIdtr(void Idtr)
Get	Debug Instance from PEI Services
Locates	the gEfiPeiDebug2PpiGuid PPI.
int	GetDebugInstance()
Debug	Print (conditional on error level via CmosCheckMode)
int	*__cdecl DebugPrint(int ErrorLevel, const char Format, ...)**
Debug	Assert (via debug instance)
int	__fastcall DebugAssert(
CpuIoPei	Entry Point
Installs	the CPU I/O PPI (EFI_PEI_CPU_IO_PPI) into the PEI database.
On	first invocation: installs via InstallPpi.
On	shadow (reload after memory): RegisterForShadow only.
EFI_STATUS	EFIAPI
RegisterForShadow	detects if this is first-time or reinstall
First	install: install the CPU I/O PPI descriptor

Generated by HR650X BIOS Decompilation Project