#include "PeiMain.h"

Functions
EFI_STATUS EFIAPI	PeiDefaultMemRead (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN EFI_PEI_CPU_IO_PPI_WIDTH Width, IN UINT64 Address, IN UINTN Count, IN OUT VOID *Buffer)

EFI_STATUS EFIAPI	PeiDefaultMemWrite (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN EFI_PEI_CPU_IO_PPI_WIDTH Width, IN UINT64 Address, IN UINTN Count, IN OUT VOID *Buffer)

EFI_STATUS EFIAPI	PeiDefaultIoRead (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN EFI_PEI_CPU_IO_PPI_WIDTH Width, IN UINT64 Address, IN UINTN Count, IN OUT VOID *Buffer)

EFI_STATUS EFIAPI	PeiDefaultIoWrite (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN EFI_PEI_CPU_IO_PPI_WIDTH Width, IN UINT64 Address, IN UINTN Count, IN OUT VOID *Buffer)

UINT8 EFIAPI	PeiDefaultIoRead8 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address)

UINT16 EFIAPI	PeiDefaultIoRead16 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address)

UINT32 EFIAPI	PeiDefaultIoRead32 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address)

UINT64 EFIAPI	PeiDefaultIoRead64 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address)

VOID EFIAPI	PeiDefaultIoWrite8 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address, IN UINT8 Data)

VOID EFIAPI	PeiDefaultIoWrite16 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address, IN UINT16 Data)

VOID EFIAPI	PeiDefaultIoWrite32 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address, IN UINT32 Data)

VOID EFIAPI	PeiDefaultIoWrite64 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address, IN UINT64 Data)

UINT8 EFIAPI	PeiDefaultMemRead8 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address)

UINT16 EFIAPI	PeiDefaultMemRead16 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address)

UINT32 EFIAPI	PeiDefaultMemRead32 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address)

UINT64 EFIAPI	PeiDefaultMemRead64 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address)

VOID EFIAPI	PeiDefaultMemWrite8 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address, IN UINT8 Data)

VOID EFIAPI	PeiDefaultMemWrite16 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address, IN UINT16 Data)

VOID EFIAPI	PeiDefaultMemWrite32 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address, IN UINT32 Data)

VOID EFIAPI	PeiDefaultMemWrite64 (IN CONST EFI_PEI_SERVICES *PeiServices, IN CONST EFI_PEI_CPU_IO_PPI This, IN UINT64 Address, IN UINT64 Data)

Variables
EFI_PEI_CPU_IO_PPI	gPeiDefaultCpuIoPpi

Detailed Description

The default version of EFI_PEI_CPU_IO_PPI support published by PeiServices in PeiCore initialization phase.

EFI_PEI_CPU_IO_PPI is installed by some platform or chipset-specific PEIM that abstracts the processor-visible I/O operations. When PeiCore is started, the default version of EFI_PEI_CPU_IO_PPI will be assigned to PeiServices table.

Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file CpuIo.c.

Function Documentation

◆ PeiDefaultIoRead()

EFI_STATUS EFIAPI PeiDefaultIoRead	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN EFI_PEI_CPU_IO_PPI_WIDTH	Width,
		IN UINT64	Address,
		IN UINTN	Count,
		IN OUT VOID *	Buffer
	)

IO-based read services.

This function is to perform the IO-base read service for the EFI_PEI_CPU_IO_PPI. If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then return EFI_NOT_YET_AVAILABLE.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Width	The width of the access. Enumerated in bytes.
Address	The physical address of the access.
Count	The number of accesses to perform.
Buffer	A pointer to the buffer of data.

Return values

EFI_SUCCESS	The function completed successfully.
EFI_NOT_YET_AVAILABLE	The service has not been installed.

Definition at line 133 of file CpuIo.c.

◆ PeiDefaultIoRead16()

UINT16 EFIAPI PeiDefaultIoRead16	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address
	)

Reads an 16-bit I/O port.

If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then return 0.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.

Returns: A 16-bit value returned from the I/O space.

Definition at line 214 of file CpuIo.c.

◆ PeiDefaultIoRead32()

UINT32 EFIAPI PeiDefaultIoRead32	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address
	)

Reads an 32-bit I/O port.

If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then return 0.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.

Returns: A 32-bit value returned from the I/O space.

Definition at line 237 of file CpuIo.c.

◆ PeiDefaultIoRead64()

UINT64 EFIAPI PeiDefaultIoRead64	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address
	)

Reads an 64-bit I/O port.

If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then return 0.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.

Returns: A 64-bit value returned from the I/O space.

Definition at line 260 of file CpuIo.c.

◆ PeiDefaultIoRead8()

UINT8 EFIAPI PeiDefaultIoRead8	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address
	)

8-bit I/O read operations.

If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then return 0.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.

Returns: An 8-bit value returned from the I/O space.

Definition at line 191 of file CpuIo.c.

◆ PeiDefaultIoWrite()

EFI_STATUS EFIAPI PeiDefaultIoWrite	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN EFI_PEI_CPU_IO_PPI_WIDTH	Width,
		IN UINT64	Address,
		IN UINTN	Count,
		IN OUT VOID *	Buffer
	)

IO-based write services.

This function is to perform the IO-base write service for the EFI_PEI_CPU_IO_PPI. If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then return EFI_NOT_YET_AVAILABLE.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Width	The width of the access. Enumerated in bytes.
Address	The physical address of the access.
Count	The number of accesses to perform.
Buffer	A pointer to the buffer of data.

Return values

EFI_SUCCESS	The function completed successfully.
EFI_NOT_YET_AVAILABLE	The service has not been installed.

Definition at line 165 of file CpuIo.c.

◆ PeiDefaultIoWrite16()

VOID EFIAPI PeiDefaultIoWrite16	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address,
		IN UINT16	Data
	)

16-bit I/O write operations. If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do nothing.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.
Data	The data to write.

Definition at line 302 of file CpuIo.c.

◆ PeiDefaultIoWrite32()

VOID EFIAPI PeiDefaultIoWrite32	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address,
		IN UINT32	Data
	)

32-bit I/O write operations. If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do nothing.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.
Data	The data to write.

Definition at line 323 of file CpuIo.c.

◆ PeiDefaultIoWrite64()

VOID EFIAPI PeiDefaultIoWrite64	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address,
		IN UINT64	Data
	)

64-bit I/O write operations. If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do nothing.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.
Data	The data to write.

Definition at line 344 of file CpuIo.c.

◆ PeiDefaultIoWrite8()

VOID EFIAPI PeiDefaultIoWrite8	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address,
		IN UINT8	Data
	)

8-bit I/O write operations. If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do nothing.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.
Data	The data to write.

Definition at line 281 of file CpuIo.c.

◆ PeiDefaultMemRead()

EFI_STATUS EFIAPI PeiDefaultMemRead	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN EFI_PEI_CPU_IO_PPI_WIDTH	Width,
		IN UINT64	Address,
		IN UINTN	Count,
		IN OUT VOID *	Buffer
	)

Memory-based read services.

This function is to perform the Memory Access Read service based on installed instance of the EFI_PEI_CPU_IO_PPI. If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then return EFI_NOT_YET_AVAILABLE.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Width	The width of the access. Enumerated in bytes.
Address	The physical address of the access.
Count	The number of accesses to perform.
Buffer	A pointer to the buffer of data.

Return values

EFI_SUCCESS	The function completed successfully.
EFI_NOT_YET_AVAILABLE	The service has not been installed.

Definition at line 68 of file CpuIo.c.

◆ PeiDefaultMemRead16()

UINT16 EFIAPI PeiDefaultMemRead16	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address
	)

16-bit memory read operations.

If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then return 0.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.

Returns: An 16-bit value returned from the memory space.

Definition at line 392 of file CpuIo.c.

◆ PeiDefaultMemRead32()

UINT32 EFIAPI PeiDefaultMemRead32	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address
	)

32-bit memory read operations.

If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then return 0.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.

Returns: An 32-bit value returned from the memory space.

Definition at line 416 of file CpuIo.c.

◆ PeiDefaultMemRead64()

UINT64 EFIAPI PeiDefaultMemRead64	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address
	)

64-bit memory read operations.

If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then return 0.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.

Returns: An 64-bit value returned from the memory space.

Definition at line 440 of file CpuIo.c.

◆ PeiDefaultMemRead8()

UINT8 EFIAPI PeiDefaultMemRead8	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address
	)

8-bit memory read operations.

If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then return 0.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.

Returns: An 8-bit value returned from the memory space.

Definition at line 368 of file CpuIo.c.

◆ PeiDefaultMemWrite()

EFI_STATUS EFIAPI PeiDefaultMemWrite	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN EFI_PEI_CPU_IO_PPI_WIDTH	Width,
		IN UINT64	Address,
		IN UINTN	Count,
		IN OUT VOID *	Buffer
	)

Memory-based write services.

This function is to perform the Memory Access Write service based on installed instance of the EFI_PEI_CPU_IO_PPI. If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then return EFI_NOT_YET_AVAILABLE.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Width	The width of the access. Enumerated in bytes.
Address	The physical address of the access.
Count	The number of accesses to perform.
Buffer	A pointer to the buffer of data.

Return values

EFI_SUCCESS	The function completed successfully.
EFI_NOT_YET_AVAILABLE	The service has not been installed.

Definition at line 101 of file CpuIo.c.

◆ PeiDefaultMemWrite16()

VOID EFIAPI PeiDefaultMemWrite16	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address,
		IN UINT16	Data
	)

16-bit memory write operations. If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do nothing.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.
Data	The data to write.

Definition at line 484 of file CpuIo.c.

◆ PeiDefaultMemWrite32()

VOID EFIAPI PeiDefaultMemWrite32	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address,
		IN UINT32	Data
	)

32-bit memory write operations. If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do nothing.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.
Data	The data to write.

Definition at line 506 of file CpuIo.c.

◆ PeiDefaultMemWrite64()

VOID EFIAPI PeiDefaultMemWrite64	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address,
		IN UINT64	Data
	)

64-bit memory write operations. If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do nothing.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.
Data	The data to write.

Definition at line 528 of file CpuIo.c.

◆ PeiDefaultMemWrite8()

VOID EFIAPI PeiDefaultMemWrite8	(	IN CONST EFI_PEI_SERVICES **	PeiServices,
		IN CONST EFI_PEI_CPU_IO_PPI *	This,
		IN UINT64	Address,
		IN UINT8	Data
	)

8-bit memory write operations. If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do nothing.

Parameters

PeiServices	An indirect pointer to the PEI Services Table published by the PEI Foundation.
This	Pointer to local data for the interface.
Address	The physical address of the access.
Data	The data to write.

Definition at line 462 of file CpuIo.c.

Variable Documentation

◆ gPeiDefaultCpuIoPpi

EFI_PEI_CPU_IO_PPI gPeiDefaultCpuIoPpi

Initial value:

= {
  {
    PeiDefaultMemRead,
    PeiDefaultMemWrite
  },
  {
    PeiDefaultIoRead,
    PeiDefaultIoWrite
  },
  PeiDefaultIoRead8,
  PeiDefaultIoRead16,
  PeiDefaultIoRead32,
  PeiDefaultIoRead64,
  PeiDefaultIoWrite8,
  PeiDefaultIoWrite16,
  PeiDefaultIoWrite32,
  PeiDefaultIoWrite64,
  PeiDefaultMemRead8,
  PeiDefaultMemRead16,
  PeiDefaultMemRead32,
  PeiDefaultMemRead64,
  PeiDefaultMemWrite8,
  PeiDefaultMemWrite16,
  PeiDefaultMemWrite32,
  PeiDefaultMemWrite64
}

This default instance of EFI_PEI_CPU_IO_PPI install assigned to EFI_PEI_SERVICE.CpuIo when PeiCore's initialization.

Definition at line 20 of file CpuIo.c.

Functions

Variables

Detailed Description

Function Documentation

◆ PeiDefaultIoRead()

◆ PeiDefaultIoRead16()

◆ PeiDefaultIoRead32()

◆ PeiDefaultIoRead64()

◆ PeiDefaultIoRead8()

◆ PeiDefaultIoWrite()

◆ PeiDefaultIoWrite16()

◆ PeiDefaultIoWrite32()

◆ PeiDefaultIoWrite64()

◆ PeiDefaultIoWrite8()

◆ PeiDefaultMemRead()

◆ PeiDefaultMemRead16()

◆ PeiDefaultMemRead32()

◆ PeiDefaultMemRead64()

◆ PeiDefaultMemRead8()

◆ PeiDefaultMemWrite()

◆ PeiDefaultMemWrite16()

◆ PeiDefaultMemWrite32()

◆ PeiDefaultMemWrite64()

◆ PeiDefaultMemWrite8()

Variable Documentation

◆ gPeiDefaultCpuIoPpi