Data Structures
struct	EMU_THUNK_PPI

Macros
#define	EMU_THUNK_PPI_GUID { 0xB958B78C, 0x1D3E, 0xEE40, { 0x8B, 0xF4, 0xF0, 0x63, 0x2D, 0x06, 0x39, 0x16 } }

Typedefs
typedef OUT EFI_PHYSICAL_ADDRESS *	MemoryBase

typedef OUT EFI_PHYSICAL_ADDRESS OUT UINT64 *	MemorySize

typedef IN OUT EFI_PHYSICAL_ADDRESS *	FdBase

typedef IN OUT EFI_PHYSICAL_ADDRESS IN OUT UINT64 *	FdSize

typedef IN OUT EFI_PHYSICAL_ADDRESS IN OUT UINT64 IN OUT EFI_PHYSICAL_ADDRESS *	FixUp

typedef VOID EFIAPI	EMU_PEI_THUNK_INTERFACE (VOID)

typedef EFI_PHYSICAL_ADDRESS *	ImageAddress

typedef EFI_PHYSICAL_ADDRESS UINT64 *	ImageSize

typedef EFI_PHYSICAL_ADDRESS UINT64 EFI_PHYSICAL_ADDRESS *	EntryPoint

Functions
typedef	EFI_STATUS (EFIAPI *EMU_PEI_AUTOSCAN)(IN UINTN Index

Variables
EFI_GUID	gEmuThunkPpiGuid

Detailed Description

Emulator Thunk to abstract OS services from pure EFI code

SPDX-License-Identifier: BSD-2-Clause-Patent

Macro Definition Documentation

#define EMU_THUNK_PPI_GUID { 0xB958B78C, 0x1D3E, 0xEE40, { 0x8B, 0xF4, 0xF0, 0x63, 0x2D, 0x06, 0x39, 0x16 } }

Typedef Documentation

typedef VOID* EFIAPI* EMU_PEI_THUNK_INTERFACE(VOID)

typedef EFI_PHYSICAL_ADDRESS UINT64 EFI_PHYSICAL_ADDRESS* EntryPoint

typedef IN OUT EFI_PHYSICAL_ADDRESS* FdBase

typedef IN OUT EFI_PHYSICAL_ADDRESS IN OUT UINT64* FdSize

typedef IN OUT EFI_PHYSICAL_ADDRESS IN OUT UINT64 IN OUT EFI_PHYSICAL_ADDRESS* FixUp

typedef EFI_PHYSICAL_ADDRESS* ImageAddress

typedef EFI_PHYSICAL_ADDRESS UINT64* ImageSize

typedef OUT EFI_PHYSICAL_ADDRESS* MemoryBase

typedef OUT EFI_PHYSICAL_ADDRESS OUT UINT64* MemorySize

Function Documentation

typedef EFI_STATUS ( EFIAPI * EMU_BLOCK_FLUSH )

Enumerates the current set of protocol instances that abstract OS services from EFI.

A given protocol can have multiple instances. Usually a protocol is configured via a single PCD string. The data associated for each instance is seperated via a ! in the string. EMU_IO_THUNK_PROTOCOL_CLOSE.ConfigString will contain the information in the PCD string up to the next !. Thus each instance has a unique ConfigString.

Parameters

EmuBusDriver	TRUE means only return protocol instances that need to be produced by the EmuBusDriver. FALSE means return all possible protocols
Instance	On input the protocol to search for, or NULL to start a search of all the supported protocol instances.
NextProtocol	On output it represents the next value to be passed into Protocol.
Interface	A pointer to the EMU_IO_THUNK_PROTOCOL_CLOSE interface.

Return values

EFI_SUCCESS	The function completed successfully.
EFI_NOT_FOUND	The next protocol instance was not found.
EFI_INVALID_PARAMETER	Instance is NULL.

Read BufferSize bytes from Lba into Buffer.

This function reads the requested number of blocks from the device. All the blocks are read, or an error is returned. If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_or EFI_MEDIA_CHANGED is returned and non-blocking I/O is being used, the Event associated with this request will not be signaled.

Parameters

[in]	This	Indicates a pointer to the calling context.
[in]	MediaId	Id of the media, changes every time the media is replaced.
[in]	Lba	The starting Logical Block Address to read from.
[in,out]	Token	A pointer to the token associated with the transaction.
[in]	BufferSize	Size of Buffer, must be a multiple of device block size.
[out]	Buffer	A pointer to the destination buffer for the data. The caller is responsible for either having implicit or explicit ownership of the buffer.

Return values

EFI_SUCCESS	The read request was queued if Token->Event is not NULL.The data was read correctly from the device if the Token->Event is NULL.
EFI_DEVICE_ERROR	The device reported an error while performing the read.
EFI_NO_MEDIA	There is no media in the device.
EFI_MEDIA_CHANGED	The MediaId is not for the current media.
EFI_BAD_BUFFER_SIZE	The BufferSize parameter is not a multiple of the intrinsic block size of the device.
EFI_INVALID_PARAMETER	The read request contains LBAs that are not valid, or the buffer is not on proper alignment.
EFI_OUT_OF_RESOURCES	The request could not be completed due to a lack of resources.

Write BufferSize bytes from Lba into Buffer.

This function writes the requested number of blocks to the device. All blocks are written, or an error is returned.If EFI_DEVICE_ERROR, EFI_NO_MEDIA, EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED is returned and non-blocking I/O is being used, the Event associated with this request will not be signaled.

Parameters

[in]	This	Indicates a pointer to the calling context.
[in]	MediaId	The media ID that the write request is for.
[in]	Lba	The starting logical block address to be written. The caller is responsible for writing to only legitimate locations.
[in,out]	Token	A pointer to the token associated with the transaction.
[in]	BufferSize	Size of Buffer, must be a multiple of device block size.
[in]	Buffer	A pointer to the source buffer for the data.

Return values

EFI_SUCCESS	The write request was queued if Event is not NULL. The data was written correctly to the device if the Event is NULL.
EFI_WRITE_PROTECTED	The device can not be written to.
EFI_NO_MEDIA	There is no media in the device.
EFI_MEDIA_CHNAGED	The MediaId does not matched the current device.
EFI_DEVICE_ERROR	The device reported an error while performing the write.
EFI_BAD_BUFFER_SIZE	The Buffer was not a multiple of the block size of the device.
EFI_INVALID_PARAMETER	The write request contains LBAs that are not valid, or the buffer is not on proper alignment.
EFI_OUT_OF_RESOURCES	The request could not be completed due to a lack of resources.

Flush the Block Device.

If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED is returned and non-blocking I/O is being used, the Event associated with this request will not be signaled.

Parameters

[in]	This	Indicates a pointer to the calling context.
[in,out]	Token	A pointer to the token associated with the transaction

Return values

EFI_SUCCESS	The flush request was queued if Event is not NULL. All outstanding data was written correctly to the device if the Event is NULL.
EFI_DEVICE_ERROR	The device reported an error while writting back the data.
EFI_WRITE_PROTECTED	The device cannot be written to.
EFI_NO_MEDIA	There is no media in the device.
EFI_MEDIA_CHANGED	The MediaId is not for the current media.
EFI_OUT_OF_RESOURCES	The request could not be completed due to a lack of resources.

Variable Documentation

EFI_GUID gEmuThunkPpiGuid

Data Structures

Macros

Typedefs

Functions

Variables

Detailed Description

Macro Definition Documentation

Typedef Documentation

Function Documentation

Variable Documentation