DxePrmContextBufferLib.c File Reference

#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/PrmContextBufferLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Protocol/PrmConfig.h>

Go to the source code of this file.

Macros
#define	_DBGMSGID_   "[PRMCONTEXTBUFFERLIB]"

Functions
EFI_STATUS	FindContextBufferInModuleBuffers (IN CONST EFI_GUID *HandlerGuid, IN CONST PRM_MODULE_CONTEXT_BUFFERS *ModuleContextBuffers, OUT CONST PRM_CONTEXT_BUFFER **ContextBuffer)
EFI_STATUS	GetModuleContextBuffers (IN PRM_GUID_SEARCH_TYPE GuidSearchType, IN CONST EFI_GUID *Guid, OUT CONST PRM_MODULE_CONTEXT_BUFFERS **PrmModuleContextBuffers)
EFI_STATUS	GetContextBuffer (IN CONST EFI_GUID *PrmHandlerGuid, IN CONST PRM_MODULE_CONTEXT_BUFFERS *PrmModuleContextBuffers OPTIONAL, OUT CONST PRM_CONTEXT_BUFFER **PrmContextBuffer)

Detailed Description

The PRM Buffer Context library provides a general abstraction for context buffer management.

Copyright (c) Microsoft Corporation SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file DxePrmContextBufferLib.c.

Macro Definition Documentation

_DBGMSGID_

#define _DBGMSGID_   "[PRMCONTEXTBUFFERLIB]"

Definition at line 17 of file DxePrmContextBufferLib.c.

Function Documentation

FindContextBufferInModuleBuffers()

EFI_STATUS FindContextBufferInModuleBuffers	(	IN CONST EFI_GUID *	HandlerGuid,
		IN CONST PRM_MODULE_CONTEXT_BUFFERS *	ModuleContextBuffers,
		OUT CONST PRM_CONTEXT_BUFFER **	ContextBuffer
	)

Finds a PRM context buffer for the given PRM handler GUID.

Note: PRM_MODULE_CONTEXT_BUFFERS is at the PRM module level while PRM_CONTEXT_BUFFER is at the PRM handler level.

Parameters

[in]	HandlerGuid	A pointer to the PRM handler GUID.
[in]	ModuleContextBuffers	A pointer to the PRM context buffers structure for the PRM module.
[out]	PrmModuleContextBuffer	A pointer to a pointer that will be set to the PRM context buffer if successfully found.

Return values

EFI_SUCCESS	The PRM context buffer was found.
EFI_INVALID_PARAMETER	A required parameter pointer is NULL.
EFI_NOT_FOUND	The context buffer for the given PRM handler GUID could not be found.

Definition at line 35 of file DxePrmContextBufferLib.c.

GetContextBuffer()

EFI_STATUS GetContextBuffer	(	IN CONST EFI_GUID *	PrmHandlerGuid,
		IN CONST PRM_MODULE_CONTEXT_BUFFERS *PrmModuleContextBuffers	OPTIONAL,
		OUT CONST PRM_CONTEXT_BUFFER **	PrmContextBuffer
	)

Returns a PRM context buffer for the given PRM handler.

Parameters

[in]	PrmHandlerGuid	A pointer to the GUID for the PRM handler.
[in]	PrmModuleContextBuffers	A pointer to a PRM_MODULE_CONTEXT_BUFFERS structure. If this optional parameter is provided, the handler context buffer will be searched for in this buffer structure which saves time by not performing a global search for the module buffer structure.
[out]	PrmContextBuffer	A pointer to a pointer that will be set to the PRM context buffer if successfully found.

Return values

EFI_SUCCESS	The PRM context buffer was found.
EFI_INVALID_PARAMETER	A required parameter pointer is NULL.
EFI_NOT_FOUND	The context buffer for the PRM handler could not be found.

Definition at line 170 of file DxePrmContextBufferLib.c.

GetModuleContextBuffers()

EFI_STATUS GetModuleContextBuffers	(	IN PRM_GUID_SEARCH_TYPE	GuidSearchType,
		IN CONST EFI_GUID *	Guid,
		OUT CONST PRM_MODULE_CONTEXT_BUFFERS **	PrmModuleContextBuffers
	)

Returns a PRM context buffers structure for the given PRM search type.

This function allows a caller to get the context buffers structure for a PRM module with either the PRM module GUID or the GUID for a PRM handler in the module.

Note: PRM_MODULE_CONTEXT_BUFFERS is at the PRM module level while PRM_CONTEXT_BUFFER is at the PRM handler level.

Parameters

[in]	GuidSearchType	The type of GUID passed in the Guid argument.
[in]	Guid	A pointer to the GUID of a PRM module or PRM handler. The actual GUID type will be interpreted based on the value passed in GuidSearchType.
[out]	PrmModuleContextBuffers	A pointer to a pointer that will be set to the PRM context buffers structure if successfully found.

Return values

EFI_SUCCESS	The PRM context buffers structure was found.
EFI_INVALID_PARAMETER	A required parameter pointer is NULL.
EFI_NOT_FOUND	The context buffers for the given GUID could not be found.

Definition at line 79 of file DxePrmContextBufferLib.c.