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Add compatibility modules for Firmware Volume, PCI CFG, and Read Only Variable

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4984 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
mdkinney 2008-04-03 00:03:04 +00:00
parent 107eebef21
commit a69a84d3cb
12 changed files with 3214 additions and 0 deletions
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1492
EdkCompatibilityPkg/Compatiblity/Fv2ToFvThunk/Fv2ToFvThunk.c Normal file
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EdkCompatibilityPkg/Compatiblity/Fv2ToFvThunk/Fv2ToFvThunk.inf Normal file
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#/** @file
# Component description file for PeiVariable module.
#
# PEIM to provide the Variable functionality.
# Copyright (c) 2006 - 2007, Intel Corporation
#
# All rights reserved. This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = Fv2ToFvThunk
FILE_GUID = D8A6F4A6-0E97-4a8b-A475-39F1B28B5AEC
MODULE_TYPE = DXE_DRIVER
VERSION_STRING = 1.0
EDK_RELEASE_VERSION = 0x00020000
EFI_SPECIFICATION_VERSION = 0x00020000
ENTRY_POINT = InitializeFirmwareVolume
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 IPF EBC
#
[Sources.common]
Fv2ToFvThunk.c
[Packages]
MdePkg/MdePkg.dec
IntelFrameworkPkg/IntelFrameworkPkg.dec
[LibraryClasses]
UefiDriverEntryPoint
UefiBootServicesTableLib
BaseLib
DebugLib
UefiLib
MemoryAllocationLib
[Protocols]
gEfiFirmwareVolume2ProtocolGuid
gEfiFirmwareVolumeProtocolGuid
[Depex]
TRUE

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EdkCompatibilityPkg/Compatiblity/FvToFv2Thunk/FvToFv2Thunk.c Normal file
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/*++
Copyright (c) 2006 - 2008 Intel Corporation. <BR>
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
FvToFv2Thunk.c
Abstract:
DXE driver
--*/
#include <PiDxe.h>
#include <Protocol/FirmwareVolume2.h>
#include <Protocol/FirmwareVolume.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiLib.h>
#include <Library/MemoryAllocationLib.h>
/**
Retrieves attributes, insures positive polarity of attribute bits, returns
resulting attributes in output parameter
@param This Calling context
@param Attributes output buffer which contains attributes
@retval EFI_INVALID_PARAMETER
@retval EFI_SUCCESS
**/
EFI_STATUS
EFIAPI
FvGetVolumeAttributes (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
OUT FRAMEWORK_EFI_FV_ATTRIBUTES *Attributes
);
/**
Sets volume attributes
@param This Calling context
@param Attributes Buffer which contains attributes
@retval EFI_INVALID_PARAMETER
@retval EFI_DEVICE_ERROR
@retval EFI_SUCCESS
**/
EFI_STATUS
EFIAPI
FvSetVolumeAttributes (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
IN OUT FRAMEWORK_EFI_FV_ATTRIBUTES *Attributes
);
/**
Read the requested file (NameGuid) and returns data in Buffer.
@param This Calling context
@param NameGuid Filename identifying which file to read
@param Buffer Pointer to pointer to buffer in which contents of file are returned.
<br>
If Buffer is NULL, only type, attributes, and size are returned as
there is no output buffer.
<br>
If Buffer != NULL and *Buffer == NULL, the output buffer is allocated
from BS pool by ReadFile
<br>
If Buffer != NULL and *Buffer != NULL, the output buffer has been
allocated by the caller and is being passed in.
@param BufferSize Indicates the buffer size passed in, and on output the size
required to complete the read
@param FoundType Indicates the type of the file who's data is returned
@param FileAttributes Indicates the attributes of the file who's data is resturned
@param AuthenticationStatus Indicates the authentication status of the data
@retval EFI_SUCCESS
@retval EFI_WARN_BUFFER_TOO_SMALL
@retval EFI_NOT_FOUND
@retval EFI_DEVICE_ERROR
@retval EFI_ACCESS_DENIED
**/
EFI_STATUS
EFIAPI
FvReadFile (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
IN EFI_GUID *NameGuid,
IN OUT VOID **Buffer,
IN OUT UINTN *BufferSize,
OUT EFI_FV_FILETYPE *FoundType,
OUT EFI_FV_FILE_ATTRIBUTES *FileAttributes,
OUT UINT32 *AuthenticationStatus
);
/**
Read the requested section from the specified file and returns data in Buffer.
@param This Calling context
@param NameGuid Filename identifying the file from which to read
@param SectionType Indicates what section type to retrieve
@param SectionInstance Indicates which instance of SectionType to retrieve
@param Buffer Pointer to pointer to buffer in which contents of file are returned.
<br>
If Buffer is NULL, only type, attributes, and size are returned as
there is no output buffer.
<br>
If Buffer != NULL and *Buffer == NULL, the output buffer is allocated
from BS pool by ReadFile
<br>
If Buffer != NULL and *Buffer != NULL, the output buffer has been
allocated by the caller and is being passed in.
@param BufferSize Indicates the buffer size passed in, and on output the size
required to complete the read
@param AuthenticationStatus Indicates the authentication status of the data
@retval EFI_SUCCESS
@retval EFI_WARN_BUFFER_TOO_SMALL
@retval EFI_OUT_OF_RESOURCES
@retval EFI_NOT_FOUND
@retval EFI_DEVICE_ERROR
@retval EFI_ACCESS_DENIED
**/
EFI_STATUS
EFIAPI
FvReadSection (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
IN EFI_GUID *NameGuid,
IN EFI_SECTION_TYPE SectionType,
IN UINTN SectionInstance,
IN OUT VOID **Buffer,
IN OUT UINTN *BufferSize,
OUT UINT32 *AuthenticationStatus
);
/**
Write the supplied file (NameGuid) to the FV.
@param This Calling context
@param NumberOfFiles Indicates the number of file records pointed to by FileData
@param WritePolicy Indicates the level of reliability of the write with respect to
things like power failure events.
@param FileData A pointer to an array of EFI_FV_WRITE_FILE_DATA structures. Each
element in the array indicates a file to write, and there are
NumberOfFiles elements in the input array.
@retval EFI_SUCCESS
@retval EFI_OUT_OF_RESOURCES
@retval EFI_DEVICE_ERROR
@retval EFI_WRITE_PROTECTED
@retval EFI_NOT_FOUND
@retval EFI_INVALID_PARAMETER
**/
EFI_STATUS
EFIAPI
FvWriteFile (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
IN UINT32 NumberOfFiles,
IN FRAMEWORK_EFI_FV_WRITE_POLICY WritePolicy,
IN FRAMEWORK_EFI_FV_WRITE_FILE_DATA *FileData
);
/**
Given the input key, search for the next matching file in the volume.
@param This Calling context
@param Key Pointer to a caller allocated buffer that contains an implementation
specific key that is used to track where to begin searching on
successive calls.
@param FileType Indicates the file type to filter for
@param NameGuid Guid filename of the file found
@param Attributes Attributes of the file found
@param Size Size in bytes of the file found
@retval EFI_SUCCESS
@retval EFI_NOT_FOUND
@retval EFI_DEVICE_ERROR
@retval EFI_ACCESS_DENIED
**/
EFI_STATUS
EFIAPI
FvGetNextFile (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
IN OUT VOID *Key,
IN OUT EFI_FV_FILETYPE *FileType,
OUT EFI_GUID *NameGuid,
OUT EFI_FV_FILE_ATTRIBUTES *Attributes,
OUT UINTN *Size
);
#define FIRMWARE_VOLUME_PRIVATE_DATA_SIGNATURE EFI_SIGNATURE_32 ('f', 'v', 't', 'h')
typedef struct {
UINTN Signature;
EFI_FIRMWARE_VOLUME_PROTOCOL FirmwareVolume;
EFI_FIRMWARE_VOLUME2_PROTOCOL *FirmwareVolume2;
} FIRMWARE_VOLUME_PRIVATE_DATA;
#define FIRMWARE_VOLUME_PRIVATE_DATA_FROM_THIS(a) CR (a, FIRMWARE_VOLUME_PRIVATE_DATA, FirmwareVolume, FIRMWARE_VOLUME_PRIVATE_DATA_SIGNATURE)
//
// Firmware Volume Protocol template
//
EFI_EVENT mFvRegistration;
FIRMWARE_VOLUME_PRIVATE_DATA gFirmwareVolumePrivateDataTemplate = {
FIRMWARE_VOLUME_PRIVATE_DATA_SIGNATURE,
{
FvGetVolumeAttributes,
FvSetVolumeAttributes,
FvReadFile,
FvReadSection,
FvWriteFile,
FvGetNextFile,
0,
NULL
},
NULL
};
//
// Module globals
//
VOID
EFIAPI
FvNotificationEvent (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_STATUS Status;
UINTN BufferSize;
EFI_HANDLE Handle;
FIRMWARE_VOLUME_PRIVATE_DATA *Private;
EFI_FIRMWARE_VOLUME_PROTOCOL *FirmwareVolume;
while (TRUE) {
BufferSize = sizeof (Handle);
Status = gBS->LocateHandle (
ByRegisterNotify,
&gEfiFirmwareVolume2ProtocolGuid,
mFvRegistration,
&BufferSize,
&Handle
);
if (EFI_ERROR (Status)) {
//
// Exit Path of While Loop....
//
break;
}
//
// Skip this handle if the Firmware Volume Protocol is already installed
//
Status = gBS->HandleProtocol (
Handle,
&gEfiFirmwareVolumeProtocolGuid,
(VOID **)&FirmwareVolume
);
if (!EFI_ERROR (Status)) {
continue;
}
//
// Allocate private data structure
//
Private = AllocateCopyPool (sizeof (FIRMWARE_VOLUME_PRIVATE_DATA), &gFirmwareVolumePrivateDataTemplate);
if (Private == NULL) {
continue;
}
//
// Retrieve the Firmware Volume2 Protocol
//
Status = gBS->HandleProtocol (
Handle,
&gEfiFirmwareVolume2ProtocolGuid,
(VOID **)&Private->FirmwareVolume2
);
ASSERT_EFI_ERROR (Status);
//
// Fill in rest of private data structure
//
Private->FirmwareVolume.KeySize = Private->FirmwareVolume2->KeySize;
Private->FirmwareVolume.ParentHandle = Private->FirmwareVolume2->ParentHandle;
//
// Install Firmware Volume Protocol onto same handle
//
Status = gBS->InstallMultipleProtocolInterfaces (
&Handle,
&gEfiFirmwareVolumeProtocolGuid,
&Private->FirmwareVolume,
NULL
);
ASSERT_EFI_ERROR (Status);
}
}
/**
The user Entry Point for DXE driver. The user code starts with this function
as the real entry point for the image goes into a library that calls this
function.
@param[in] ImageHandle The firmware allocated handle for the EFI image.
@param[in] SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
@retval other Some error occurs when executing this entry point.
**/
EFI_STATUS
EFIAPI
InitializeFirmwareVolume2 (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EfiCreateProtocolNotifyEvent (
&gEfiFirmwareVolume2ProtocolGuid,
TPL_CALLBACK,
FvNotificationEvent,
NULL,
&mFvRegistration
);
return EFI_SUCCESS;
}
/**
Retrieves attributes, insures positive polarity of attribute bits, returns
resulting attributes in output parameter
@param This Calling context
@param Attributes output buffer which contains attributes
@retval EFI_INVALID_PARAMETER
@retval EFI_SUCCESS
**/
EFI_STATUS
EFIAPI
FvGetVolumeAttributes (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
OUT FRAMEWORK_EFI_FV_ATTRIBUTES *Attributes
)
{
EFI_STATUS Status;
FIRMWARE_VOLUME_PRIVATE_DATA *Private;
EFI_FIRMWARE_VOLUME2_PROTOCOL *FirmwareVolume2;
Private = FIRMWARE_VOLUME_PRIVATE_DATA_FROM_THIS (This);
FirmwareVolume2 = Private->FirmwareVolume2;
Status = FirmwareVolume2->GetVolumeAttributes (
FirmwareVolume2,
Attributes
);
if (!EFI_ERROR (Status)) {
*Attributes = (*Attributes & 0x1ff) | ((UINTN)EFI_FV_ALIGNMENT_2 << ((*Attributes & EFI_FV2_ALIGNMENT) >> 16));
}
return Status;
}
/**
Sets volume attributes
@param This Calling context
@param Attributes Buffer which contains attributes
@retval EFI_INVALID_PARAMETER
@retval EFI_DEVICE_ERROR
@retval EFI_SUCCESS
**/
EFI_STATUS
EFIAPI
FvSetVolumeAttributes (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
IN OUT FRAMEWORK_EFI_FV_ATTRIBUTES *Attributes
)
{
FIRMWARE_VOLUME_PRIVATE_DATA *Private;
EFI_FIRMWARE_VOLUME2_PROTOCOL *FirmwareVolume2;
INTN Alignment;
EFI_FV_ATTRIBUTES Fv2Attributes;
Private = FIRMWARE_VOLUME_PRIVATE_DATA_FROM_THIS (This);
FirmwareVolume2 = Private->FirmwareVolume2;
Fv2Attributes = (*Attributes & 0x1ff);
Alignment = LowBitSet64 (RShiftU64 (*Attributes, 16) & 0xffff);
if (Alignment != -1) {
Fv2Attributes |= LShiftU64 (Alignment, 16);
}
return FirmwareVolume2->SetVolumeAttributes (
FirmwareVolume2,
&Fv2Attributes
);
}
/**
Read the requested file (NameGuid) and returns data in Buffer.
@param This Calling context
@param NameGuid Filename identifying which file to read
@param Buffer Pointer to pointer to buffer in which contents of file are returned.
<br>
If Buffer is NULL, only type, attributes, and size are returned as
there is no output buffer.
<br>
If Buffer != NULL and *Buffer == NULL, the output buffer is allocated
from BS pool by ReadFile
<br>
If Buffer != NULL and *Buffer != NULL, the output buffer has been
allocated by the caller and is being passed in.
@param BufferSize Indicates the buffer size passed in, and on output the size
required to complete the read
@param FoundType Indicates the type of the file who's data is returned
@param FileAttributes Indicates the attributes of the file who's data is resturned
@param AuthenticationStatus Indicates the authentication status of the data
@retval EFI_SUCCESS
@retval EFI_WARN_BUFFER_TOO_SMALL
@retval EFI_NOT_FOUND
@retval EFI_DEVICE_ERROR
@retval EFI_ACCESS_DENIED
**/
EFI_STATUS
EFIAPI
FvReadFile (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
IN EFI_GUID *NameGuid,
IN OUT VOID **Buffer,
IN OUT UINTN *BufferSize,
OUT EFI_FV_FILETYPE *FoundType,
OUT EFI_FV_FILE_ATTRIBUTES *FileAttributes,
OUT UINT32 *AuthenticationStatus
)
{
FIRMWARE_VOLUME_PRIVATE_DATA *Private;
EFI_FIRMWARE_VOLUME2_PROTOCOL *FirmwareVolume2;
Private = FIRMWARE_VOLUME_PRIVATE_DATA_FROM_THIS (This);
FirmwareVolume2 = Private->FirmwareVolume2;
return FirmwareVolume2->ReadFile (
FirmwareVolume2,
NameGuid,
Buffer,
BufferSize,
FoundType,
FileAttributes,
AuthenticationStatus
);
}
/**
Read the requested section from the specified file and returns data in Buffer.
@param This Calling context
@param NameGuid Filename identifying the file from which to read
@param SectionType Indicates what section type to retrieve
@param SectionInstance Indicates which instance of SectionType to retrieve
@param Buffer Pointer to pointer to buffer in which contents of file are returned.
<br>
If Buffer is NULL, only type, attributes, and size are returned as
there is no output buffer.
<br>
If Buffer != NULL and *Buffer == NULL, the output buffer is allocated
from BS pool by ReadFile
<br>
If Buffer != NULL and *Buffer != NULL, the output buffer has been
allocated by the caller and is being passed in.
@param BufferSize Indicates the buffer size passed in, and on output the size
required to complete the read
@param AuthenticationStatus Indicates the authentication status of the data
@retval EFI_SUCCESS
@retval EFI_WARN_BUFFER_TOO_SMALL
@retval EFI_OUT_OF_RESOURCES
@retval EFI_NOT_FOUND
@retval EFI_DEVICE_ERROR
@retval EFI_ACCESS_DENIED
**/
EFI_STATUS
EFIAPI
FvReadSection (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
IN EFI_GUID *NameGuid,
IN EFI_SECTION_TYPE SectionType,
IN UINTN SectionInstance,
IN OUT VOID **Buffer,
IN OUT UINTN *BufferSize,
OUT UINT32 *AuthenticationStatus
)
{
FIRMWARE_VOLUME_PRIVATE_DATA *Private;
EFI_FIRMWARE_VOLUME2_PROTOCOL *FirmwareVolume2;
Private = FIRMWARE_VOLUME_PRIVATE_DATA_FROM_THIS (This);
FirmwareVolume2 = Private->FirmwareVolume2;
return FirmwareVolume2->ReadSection (
FirmwareVolume2,
NameGuid,
SectionType,
SectionInstance,
Buffer,
BufferSize,
AuthenticationStatus
);
}
/**
Write the supplied file (NameGuid) to the FV.
@param This Calling context
@param NumberOfFiles Indicates the number of file records pointed to by FileData
@param WritePolicy Indicates the level of reliability of the write with respect to
things like power failure events.
@param FileData A pointer to an array of EFI_FV_WRITE_FILE_DATA structures. Each
element in the array indicates a file to write, and there are
NumberOfFiles elements in the input array.
@retval EFI_SUCCESS
@retval EFI_OUT_OF_RESOURCES
@retval EFI_DEVICE_ERROR
@retval EFI_WRITE_PROTECTED
@retval EFI_NOT_FOUND
@retval EFI_INVALID_PARAMETER
**/
EFI_STATUS
EFIAPI
FvWriteFile (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
IN UINT32 NumberOfFiles,
IN FRAMEWORK_EFI_FV_WRITE_POLICY WritePolicy,
IN FRAMEWORK_EFI_FV_WRITE_FILE_DATA *FileData
)
{
FIRMWARE_VOLUME_PRIVATE_DATA *Private;
EFI_FIRMWARE_VOLUME2_PROTOCOL *FirmwareVolume2;
Private = FIRMWARE_VOLUME_PRIVATE_DATA_FROM_THIS (This);
FirmwareVolume2 = Private->FirmwareVolume2;
return FirmwareVolume2->WriteFile (
FirmwareVolume2,
NumberOfFiles,
WritePolicy,
(EFI_FV_WRITE_FILE_DATA *)FileData
);
}
/**
Given the input key, search for the next matching file in the volume.
@param This Calling context
@param Key Pointer to a caller allocated buffer that contains an implementation
specific key that is used to track where to begin searching on
successive calls.
@param FileType Indicates the file type to filter for
@param NameGuid Guid filename of the file found
@param Attributes Attributes of the file found
@param Size Size in bytes of the file found
@retval EFI_SUCCESS
@retval EFI_NOT_FOUND
@retval EFI_DEVICE_ERROR
@retval EFI_ACCESS_DENIED
**/
EFI_STATUS
EFIAPI
FvGetNextFile (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
IN OUT VOID *Key,
IN OUT EFI_FV_FILETYPE *FileType,
OUT EFI_GUID *NameGuid,
OUT EFI_FV_FILE_ATTRIBUTES *Attributes,
OUT UINTN *Size
)
{
FIRMWARE_VOLUME_PRIVATE_DATA *Private;
EFI_FIRMWARE_VOLUME2_PROTOCOL *FirmwareVolume2;
Private = FIRMWARE_VOLUME_PRIVATE_DATA_FROM_THIS (This);
FirmwareVolume2 = Private->FirmwareVolume2;
return FirmwareVolume2->GetNextFile (
FirmwareVolume2,
Key,
FileType,
NameGuid,
Attributes,
Size
);
}

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EdkCompatibilityPkg/Compatiblity/FvToFv2Thunk/FvToFv2Thunk.inf Normal file
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#/** @file
# Component description file for PeiVariable module.
#
# PEIM to provide the Variable functionality.
# Copyright (c) 2006 - 2007, Intel Corporation
#
# All rights reserved. This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = FvToFv2Thunk
FILE_GUID = 5007A40E-A5E0-44f7-86AE-662F9A91DA26
MODULE_TYPE = DXE_DRIVER
VERSION_STRING = 1.0
EDK_RELEASE_VERSION = 0x00020000
EFI_SPECIFICATION_VERSION = 0x00020000
ENTRY_POINT = InitializeFirmwareVolume2
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 IPF EBC
#
[Sources.common]
FvToFv2Thunk.c
[Packages]
MdePkg/MdePkg.dec
IntelFrameworkPkg/IntelFrameworkPkg.dec
[LibraryClasses]
UefiDriverEntryPoint
UefiBootServicesTableLib
BaseLib
DebugLib
UefiLib
MemoryAllocationLib
[Protocols]
gEfiFirmwareVolume2ProtocolGuid
gEfiFirmwareVolumeProtocolGuid
[Depex]
TRUE

219
EdkCompatibilityPkg/Compatiblity/PciCfg2ToPciCfgThunk/PciCfg2ToPciCfgThunk.c Normal file
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/*++
Copyright (c) 2006 - 2008 Intel Corporation. <BR>
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
Variable.c
Abstract:
PEIM to provide the Variable functionality
--*/
#include <PiPei.h>
#include <Ppi/PciCfg.h>
#include <Ppi/PciCfg2.h>
#include <Ppi/EcpPciCfg.h>
#include <Library/DebugLib.h>
//
// Function Prototypes - Callbacks
//
EFI_STATUS
EFIAPI
EcpPciCfgPpiNotifyCallback (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
IN VOID *Ppi
);
//
// Function Prototypes
//
EFI_STATUS
EFIAPI
PciCfg2Read (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_PCI_CFG2_PPI *This,
IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
IN UINT64 Address,
IN OUT VOID *Buffer
);
EFI_STATUS
EFIAPI
PciCfg2Write (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_PCI_CFG2_PPI *This,
IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
IN UINT64 Address,
IN OUT VOID *Buffer
);
EFI_STATUS
EFIAPI
PciCfg2Modify (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_PCI_CFG2_PPI *This,
IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
IN UINT64 Address,
IN CONST VOID *SetBits,
IN CONST VOID *ClearBits
);
//
// Module globals
//
EFI_PEI_NOTIFY_DESCRIPTOR mNotifyOnEcpPciCfgList = {
(EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gEcpPeiPciCfgPpiGuid,
EcpPciCfgPpiNotifyCallback
};
EFI_PEI_PCI_CFG2_PPI mPciCfg2Ppi = {
PciCfg2Read,
PciCfg2Write,
PciCfg2Modify,
0
};
EFI_PEI_PPI_DESCRIPTOR mPpiListPciCfg2 = {
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gEfiPciCfg2PpiGuid,
&mPciCfg2Ppi
};
EFI_STATUS
EFIAPI
PeimInitializePciCfg2 (
IN EFI_FFS_FILE_HEADER *FfsHeader,
IN CONST EFI_PEI_SERVICES **PeiServices
)
/*++
Routine Description:
Provide the functionality of the variable services.
Arguments:
FfsHeadher - The FFS file header
PeiServices - General purpose services available to every PEIM.
Returns:
Status - EFI_SUCCESS if the interface could be successfully
installed
--*/
{
EFI_STATUS Status;
//
// Register a notification for ECP PCI CFG PPI
//
Status = (*PeiServices)->NotifyPpi (PeiServices, &mNotifyOnEcpPciCfgList);
ASSERT_EFI_ERROR (Status);
return Status;
}
EFI_STATUS
EFIAPI
EcpPciCfgPpiNotifyCallback (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
IN VOID *Ppi
)
{
//
// When ECP PCI CFG PPI is installed, publish the PCI CFG2 PPI in the
// PEI Services Table and the PPI database
//
(*PeiServices)->PciCfg = &mPciCfg2Ppi;
return (*PeiServices)->InstallPpi ((CONST EFI_PEI_SERVICES **)PeiServices, &mPpiListPciCfg2);
}
EFI_STATUS
EFIAPI
PciCfg2Read (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_PCI_CFG2_PPI *This,
IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
IN UINT64 Address,
IN OUT VOID *Buffer
)
{
EFI_STATUS Status;
EFI_PEI_PCI_CFG_PPI *PciCfg;
Status = (*PeiServices)->LocatePpi (
PeiServices,
&gEcpPeiPciCfgPpiGuid,
0,
NULL,
(VOID **)&PciCfg
);
ASSERT_EFI_ERROR (Status);
return PciCfg->Read ((EFI_PEI_SERVICES **)PeiServices, PciCfg, Width, Address, Buffer);
}
EFI_STATUS
EFIAPI
PciCfg2Write (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_PCI_CFG2_PPI *This,
IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
IN UINT64 Address,
IN OUT VOID *Buffer
)
{
EFI_STATUS Status;
EFI_PEI_PCI_CFG_PPI *PciCfg;
Status = (*PeiServices)->LocatePpi (
PeiServices,
&gEcpPeiPciCfgPpiGuid,
0,
NULL,
(VOID **)&PciCfg
);
ASSERT_EFI_ERROR (Status);
return PciCfg->Write ((EFI_PEI_SERVICES **)PeiServices, PciCfg, Width, Address, Buffer);
}
EFI_STATUS
EFIAPI
PciCfg2Modify (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_PCI_CFG2_PPI *This,
IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
IN UINT64 Address,
IN CONST VOID *SetBits,
IN CONST VOID *ClearBits
)
{
EFI_STATUS Status;
EFI_PEI_PCI_CFG_PPI *PciCfg;
Status = (*PeiServices)->LocatePpi (
PeiServices,
&gEcpPeiPciCfgPpiGuid,
0,
NULL,
(VOID **)&PciCfg
);
ASSERT_EFI_ERROR (Status);
return PciCfg->Modify ((EFI_PEI_SERVICES **)PeiServices, PciCfg, Width, Address, *(UINTN *)SetBits, *(UINTN *)ClearBits);
}

53
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#/** @file
# Component description file for PeiVariable module.
#
# PEIM to provide the Variable functionality.
# Copyright (c) 2006 - 2007, Intel Corporation
#
# All rights reserved. This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = PciCfg2ToPciCfgThunk
FILE_GUID = 41401688-2862-431b-BAAC-6ECADAC384AB
MODULE_TYPE = PEIM
VERSION_STRING = 1.0
EDK_RELEASE_VERSION = 0x00020000
EFI_SPECIFICATION_VERSION = 0x00020000
ENTRY_POINT = PeimInitializePciCfg2
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 IPF EBC
#
[Sources.common]
PciCfg2ToPciCfgThunk.c
[Packages]
MdePkg/MdePkg.dec
IntelFrameworkPkg/IntelFrameworkPkg.dec
EdkCompatibilityPkg/EdkCompatibilityPkg.dec
[LibraryClasses]
PeimEntryPoint
DebugLib
[Ppis]
gEfiPciCfgPpiInServiceTableGuid
gEfiPciCfg2PpiGuid
gEcpPeiPciCfgPpiGuid
[Depex]
TRUE
# gEcpPeiPciCfgPpiGuid

155
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/*++
Copyright (c) 2006 - 2008 Intel Corporation. <BR>
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
Variable.c
Abstract:
PEIM to provide the Variable functionality
--*/
#include <PiPei.h>
#include <Ppi/PciCfg.h>
#include <Ppi/PciCfg2.h>
#include <Library/DebugLib.h>
//
// Function Prototypes
//
EFI_STATUS
EFIAPI
PciCfgRead (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_PCI_CFG_PPI *This,
IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
IN UINT64 Address,
IN OUT VOID *Buffer
);
EFI_STATUS
EFIAPI
PciCfgWrite (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_PCI_CFG_PPI *This,
IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
IN UINT64 Address,
IN OUT VOID *Buffer
);
EFI_STATUS
EFIAPI
PciCfgModify (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_PCI_CFG_PPI *This,
IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
IN UINT64 Address,
IN UINTN SetBits,
IN UINTN ClearBits
);
//
// Module globals
//
EFI_PEI_PCI_CFG_PPI mPciCfgPpi = {
PciCfgRead,
PciCfgWrite,
PciCfgModify,
};
EFI_PEI_PPI_DESCRIPTOR mPpiListPciCfg = {
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gEfiPciCfgPpiInServiceTableGuid,
&mPciCfgPpi
};
EFI_STATUS
EFIAPI
PeimInitializePciCfg (
IN EFI_FFS_FILE_HEADER *FfsHeader,
IN CONST EFI_PEI_SERVICES **PeiServices
)
/*++
Routine Description:
Provide the functionality of the variable services.
Arguments:
FfsHeadher - The FFS file header
PeiServices - General purpose services available to every PEIM.
Returns:
Status - EFI_SUCCESS if the interface could be successfully
installed
--*/
{
//
// Publish the variable capability to other modules
//
return (*PeiServices)->InstallPpi (PeiServices, &mPpiListPciCfg);
}
EFI_STATUS
EFIAPI
PciCfgRead (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_PCI_CFG_PPI *This,
IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
IN UINT64 Address,
IN OUT VOID *Buffer
)
{
EFI_PEI_PCI_CFG2_PPI *PciCfg2;
PciCfg2 = (*PeiServices)->PciCfg;
return PciCfg2->Read ((CONST EFI_PEI_SERVICES **)PeiServices, PciCfg2, Width, Address, Buffer);
}
EFI_STATUS
EFIAPI
PciCfgWrite (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_PCI_CFG_PPI *This,
IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
IN UINT64 Address,
IN OUT VOID *Buffer
)
{
EFI_PEI_PCI_CFG2_PPI *PciCfg2;
PciCfg2 = (*PeiServices)->PciCfg;
return PciCfg2->Write ((CONST EFI_PEI_SERVICES **)PeiServices, PciCfg2, Width, Address, Buffer);
}
EFI_STATUS
EFIAPI
PciCfgModify (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_PCI_CFG_PPI *This,
IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
IN UINT64 Address,
IN UINTN SetBits,
IN UINTN ClearBits
)
{
EFI_PEI_PCI_CFG2_PPI *PciCfg2;
PciCfg2 = (*PeiServices)->PciCfg;
return PciCfg2->Modify ((CONST EFI_PEI_SERVICES **)PeiServices, PciCfg2, Width, Address, &SetBits, &ClearBits);
}

50
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#/** @file
# Component description file for PeiVariable module.
#
# PEIM to provide the Variable functionality.
# Copyright (c) 2006 - 2007, Intel Corporation
#
# All rights reserved. This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = PciCfgToPciCfg2Thunk
FILE_GUID = 717886AB-C40A-44cf-9114-4119E84B0DC7
MODULE_TYPE = PEIM
VERSION_STRING = 1.0
EDK_RELEASE_VERSION = 0x00020000
EFI_SPECIFICATION_VERSION = 0x00020000
ENTRY_POINT = PeimInitializePciCfg
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 IPF EBC
#
[Sources.common]
PciCfgToPciCfg2Thunk.c
[Packages]
MdePkg/MdePkg.dec
IntelFrameworkPkg/IntelFrameworkPkg.dec
[LibraryClasses]
PeimEntryPoint
DebugLib
[Ppis]
gEfiPciCfgPpiInServiceTableGuid
gEfiPciCfg2PpiGuid
[Depex]
gEfiPciCfg2PpiGuid

208
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/*++
Copyright (c) 2006 - 2008 Intel Corporation. <BR>
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
Variable.c
Abstract:
PEIM to provide the Variable functionality
--*/
#include <PiPei.h>
#include <Ppi/ReadOnlyVariable2.h>
#include <Ppi/ReadOnlyVariable.h>
#include <Library/DebugLib.h>
#include <Library/PeiServicesTablePointerLib.h>
#include <Library/PeiServicesLib.h>
//
// Function Prototypes
//
EFI_STATUS
EFIAPI
PeiGetVariable (
IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *This,
IN CONST CHAR16 *VariableName,
IN CONST EFI_GUID *VariableGuid,
OUT UINT32 *Attributes,
IN OUT UINTN *DataSize,
OUT VOID *Data
);
EFI_STATUS
EFIAPI
PeiGetNextVariableName (
IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *This,
IN OUT UINTN *VariableNameSize,
IN OUT CHAR16 *VariableName,
IN OUT EFI_GUID *VariableGuid
);
//
// Module globals
//
EFI_PEI_READ_ONLY_VARIABLE2_PPI mVariablePpi = {
PeiGetVariable,
PeiGetNextVariableName
};
EFI_PEI_PPI_DESCRIPTOR mPpiListVariable = {
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gEfiPeiReadOnlyVariable2PpiGuid,
&mVariablePpi
};
EFI_STATUS
EFIAPI
PeimInitializeReadOnlyVariable2 (
IN EFI_FFS_FILE_HEADER *FfsHeader,
IN EFI_PEI_SERVICES **PeiServices
)
/*++
Routine Description:
Provide the functionality of the variable services.
Arguments:
FfsHeadher - The FFS file header
PeiServices - General purpose services available to every PEIM.
Returns:
Status - EFI_SUCCESS if the interface could be successfully
installed
--*/
{
//
// Publish the variable capability to other modules
//
return PeiServicesInstallPpi (&mPpiListVariable);
}
EFI_STATUS
EFIAPI
PeiGetVariable (
IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *This,
IN CONST CHAR16 *VariableName,
IN CONST EFI_GUID *VariableGuid,
OUT UINT32 *Attributes,
IN OUT UINTN *DataSize,
OUT VOID *Data
)
/*++
Routine Description:
Provide the read variable functionality of the variable services.
Arguments:
PeiServices - General purpose services available to every PEIM.
VariableName - The variable name
VendorGuid - The vendor's GUID
Attributes - Pointer to the attribute
DataSize - Size of data
Data - Pointer to data
Returns:
EFI_SUCCESS - The interface could be successfully installed
EFI_NOT_FOUND - The variable could not be discovered
EFI_BUFFER_TOO_SMALL - The caller buffer is not large enough
--*/
{
EFI_STATUS Status;
EFI_PEI_READ_ONLY_VARIABLE_PPI *ReadOnlyVariable;
Status = PeiServicesLocatePpi (
&gEfiPeiReadOnlyVariablePpiGuid,
0,
NULL,
(VOID **)&ReadOnlyVariable
);
ASSERT_EFI_ERROR (Status);
return ReadOnlyVariable->PeiGetVariable (
GetPeiServicesTablePointer (),
(CHAR16 *)VariableName,
(EFI_GUID *)VariableGuid,
Attributes,
DataSize,
Data
);
}
EFI_STATUS
EFIAPI
PeiGetNextVariableName (
IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *This,
IN OUT UINTN *VariableNameSize,
IN OUT CHAR16 *VariableName,
IN OUT EFI_GUID *VariableGuid
)
/*++
Routine Description:
Provide the get next variable functionality of the variable services.
Arguments:
PeiServices - General purpose services available to every PEIM.
VariabvleNameSize - The variable name's size.
VariableName - A pointer to the variable's name.
VariableGuid - A pointer to the EFI_GUID structure.
VariableNameSize - Size of the variable name
VariableName - The variable name
VendorGuid - The vendor's GUID
Returns:
EFI_SUCCESS - The interface could be successfully installed
EFI_NOT_FOUND - The variable could not be discovered
--*/
{
EFI_STATUS Status;
EFI_PEI_READ_ONLY_VARIABLE_PPI *ReadOnlyVariable;
Status = PeiServicesLocatePpi (
&gEfiPeiReadOnlyVariablePpiGuid,
0,
NULL,
(VOID **)&ReadOnlyVariable
);
ASSERT_EFI_ERROR (Status);
return ReadOnlyVariable->PeiGetNextVariableName (
GetPeiServicesTablePointer (),
VariableNameSize,
VariableName,
VariableGuid
);
}

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#/** @file
# Component description file for PeiVariable module.
#
# PEIM to provide the Variable functionality.
# Copyright (c) 2006 - 2007, Intel Corporation
#
# All rights reserved. This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = ReadOnlyVariable2ToReadOnlyVariableThunk
FILE_GUID = 950216A2-A621-479c-A13D-2990617BDFE7
MODULE_TYPE = PEIM
VERSION_STRING = 1.0
EDK_RELEASE_VERSION = 0x00020000
EFI_SPECIFICATION_VERSION = 0x00020000
ENTRY_POINT = PeimInitializeReadOnlyVariable2
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 IPF EBC
#
[Sources.common]
ReadOnlyVariable2ToReadOnlyVariableThunk.c
[Packages]
MdePkg/MdePkg.dec
IntelFrameworkPkg/IntelFrameworkPkg.dec
[LibraryClasses]
PeimEntryPoint
PeiServicesLib
PeiServicesTablePointerLib
DebugLib
[Ppis]
gEfiPeiReadOnlyVariablePpiGuid # PPI ALWAYS_CONSUMED
gEfiPeiReadOnlyVariable2PpiGuid # PPI ALWAYS_PRODUCED
[Depex]
gEfiPeiReadOnlyVariablePpiGuid

208
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/*++
Copyright (c) 2006 - 2008 Intel Corporation. <BR>
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
Variable.c
Abstract:
PEIM to provide the Variable functionality
--*/
#include <PiPei.h>
#include <Ppi/ReadOnlyVariable.h>
#include <Ppi/ReadOnlyVariable2.h>
#include <Library/DebugLib.h>
//
// Function Prototypes
//
EFI_STATUS
EFIAPI
PeiGetVariable (
IN EFI_PEI_SERVICES **PeiServices,
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
OUT UINT32 *Attributes OPTIONAL,
IN OUT UINTN *DataSize,
OUT VOID *Data
);
EFI_STATUS
EFIAPI
PeiGetNextVariableName (
IN EFI_PEI_SERVICES **PeiServices,
IN OUT UINTN *VariableNameSize,
IN OUT CHAR16 *VariableName,
IN OUT EFI_GUID *VendorGuid
);
//
// Module globals
//
EFI_PEI_READ_ONLY_VARIABLE_PPI mVariablePpi = {
PeiGetVariable,
PeiGetNextVariableName
};
EFI_PEI_PPI_DESCRIPTOR mPpiListVariable = {
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gEfiPeiReadOnlyVariablePpiGuid,
&mVariablePpi
};
EFI_STATUS
EFIAPI
PeimInitializeReadOnlyVariable (
IN EFI_FFS_FILE_HEADER *FfsHeader,
IN CONST EFI_PEI_SERVICES **PeiServices
)
/*++
Routine Description:
Provide the functionality of the variable services.
Arguments:
FfsHeadher - The FFS file header
PeiServices - General purpose services available to every PEIM.
Returns:
Status - EFI_SUCCESS if the interface could be successfully
installed
--*/
{
//
// Publish the variable capability to other modules
//
return (*PeiServices)->InstallPpi (PeiServices, &mPpiListVariable);
}
EFI_STATUS
EFIAPI
PeiGetVariable (
IN EFI_PEI_SERVICES **PeiServices,
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
OUT UINT32 *Attributes OPTIONAL,
IN OUT UINTN *DataSize,
OUT VOID *Data
)
/*++
Routine Description:
Provide the read variable functionality of the variable services.
Arguments:
PeiServices - General purpose services available to every PEIM.
VariableName - The variable name
VendorGuid - The vendor's GUID
Attributes - Pointer to the attribute
DataSize - Size of data
Data - Pointer to data
Returns:
EFI_SUCCESS - The interface could be successfully installed
EFI_NOT_FOUND - The variable could not be discovered
EFI_BUFFER_TOO_SMALL - The caller buffer is not large enough
--*/
{
EFI_STATUS Status;
EFI_PEI_READ_ONLY_VARIABLE2_PPI *ReadOnlyVariable2;
Status = (*PeiServices)->LocatePpi (
(CONST EFI_PEI_SERVICES **)PeiServices,
&gEfiPeiReadOnlyVariable2PpiGuid,
0,
NULL,
(VOID **)&ReadOnlyVariable2
);
ASSERT_EFI_ERROR (Status);
return ReadOnlyVariable2->GetVariable (
ReadOnlyVariable2,
VariableName,
VendorGuid,
Attributes,
DataSize,
Data
);
}
EFI_STATUS
EFIAPI
PeiGetNextVariableName (
IN EFI_PEI_SERVICES **PeiServices,
IN OUT UINTN *VariableNameSize,
IN OUT CHAR16 *VariableName,
IN OUT EFI_GUID *VendorGuid
)
/*++
Routine Description:
Provide the get next variable functionality of the variable services.
Arguments:
PeiServices - General purpose services available to every PEIM.
VariabvleNameSize - The variable name's size.
VariableName - A pointer to the variable's name.
VariableGuid - A pointer to the EFI_GUID structure.
VariableNameSize - Size of the variable name
VariableName - The variable name
VendorGuid - The vendor's GUID
Returns:
EFI_SUCCESS - The interface could be successfully installed
EFI_NOT_FOUND - The variable could not be discovered
--*/
{
EFI_STATUS Status;
EFI_PEI_READ_ONLY_VARIABLE2_PPI *ReadOnlyVariable2;
Status = (*PeiServices)->LocatePpi (
(CONST EFI_PEI_SERVICES **)PeiServices,
&gEfiPeiReadOnlyVariable2PpiGuid,
0,
NULL,
(VOID **)&ReadOnlyVariable2
);
ASSERT_EFI_ERROR (Status);
return ReadOnlyVariable2->NextVariableName (
ReadOnlyVariable2,
VariableNameSize,
VariableName,
VendorGuid
);
}

52
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#/** @file
# Component description file for PeiVariable module.
#
# PEIM to provide the Variable functionality.
# Copyright (c) 2006 - 2007, Intel Corporation
#
# All rights reserved. This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = ReadOnlyVariableToReadOnlyVariable2Thunk
FILE_GUID = 0FDB764B-E669-4c69-83AC-5EDD99A2711E
MODULE_TYPE = PEIM
VERSION_STRING = 1.0
EDK_RELEASE_VERSION = 0x00020000
EFI_SPECIFICATION_VERSION = 0x00020000
ENTRY_POINT = PeimInitializeReadOnlyVariable
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 IPF EBC
#
[Sources.common]
ReadOnlyVariableToReadOnlyVariable2Thunk.c
[Packages]
MdePkg/MdePkg.dec
IntelFrameworkPkg/IntelFrameworkPkg.dec
[LibraryClasses]
PeimEntryPoint
# PeiServicesLib
# PeiServicesTablePointerLib
DebugLib
[Ppis]
gEfiPeiReadOnlyVariable2PpiGuid # PPI ALWAYS_CONSUMED
gEfiPeiReadOnlyVariablePpiGuid # PPI ALWAYS_PRODUCED
[Depex]
gEfiPeiReadOnlyVariable2PpiGuid