9344f09215
https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
325 lines
17 KiB
C
325 lines
17 KiB
C
/** @file
|
|
MDE DXE Services Library provides functions that simplify the development of DXE Drivers.
|
|
These functions help access data from sections of FFS files or from file path.
|
|
|
|
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
(C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#ifndef __DXE_SERVICES_LIB_H__
|
|
#define __DXE_SERVICES_LIB_H__
|
|
|
|
/**
|
|
Searches all the available firmware volumes and returns the first matching FFS section.
|
|
|
|
This function searches all the firmware volumes for FFS files with FV file type specified by FileType
|
|
The order that the firmware volumes is searched is not deterministic. For each available FV a search
|
|
is made for FFS file of type FileType. If the FV contains more than one FFS file with the same FileType,
|
|
the FileInstance instance will be the matched FFS file. For each FFS file found a search
|
|
is made for FFS sections of type SectionType. If the FFS file contains at least SectionInstance instances
|
|
of the FFS section specified by SectionType, then the SectionInstance instance is returned in Buffer.
|
|
Buffer is allocated using AllocatePool(), and the size of the allocated buffer is returned in Size.
|
|
It is the caller's responsibility to use FreePool() to free the allocated buffer.
|
|
See EFI_FIRMWARE_VOLUME2_PROTOCOL.ReadSection() for details on how sections
|
|
are retrieved from an FFS file based on SectionType and SectionInstance.
|
|
|
|
If SectionType is EFI_SECTION_TE, and the search with an FFS file fails,
|
|
the search will be retried with a section type of EFI_SECTION_PE32.
|
|
This function must be called with a TPL <= TPL_NOTIFY.
|
|
|
|
If Buffer is NULL, then ASSERT().
|
|
If Size is NULL, then ASSERT().
|
|
|
|
@param FileType Indicates the FV file type to search for within all available FVs.
|
|
@param FileInstance Indicates which file instance within all available FVs specified by FileType.
|
|
FileInstance starts from zero.
|
|
@param SectionType Indicates the FFS section type to search for within the FFS file
|
|
specified by FileType with FileInstance.
|
|
@param SectionInstance Indicates which section instance within the FFS file
|
|
specified by FileType with FileInstance to retrieve. SectionInstance starts from zero.
|
|
@param Buffer On output, a pointer to a callee allocated buffer containing the FFS file section that was found.
|
|
Is it the caller's responsibility to free this buffer using FreePool().
|
|
@param Size On output, a pointer to the size, in bytes, of Buffer.
|
|
|
|
@retval EFI_SUCCESS The specified FFS section was returned.
|
|
@retval EFI_NOT_FOUND The specified FFS section could not be found.
|
|
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to retrieve the matching FFS section.
|
|
@retval EFI_DEVICE_ERROR The FFS section could not be retrieves due to a device error.
|
|
@retval EFI_ACCESS_DENIED The FFS section could not be retrieves because the firmware volume that
|
|
contains the matching FFS section does not allow reads.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
GetSectionFromAnyFvByFileType (
|
|
IN EFI_FV_FILETYPE FileType,
|
|
IN UINTN FileInstance,
|
|
IN EFI_SECTION_TYPE SectionType,
|
|
IN UINTN SectionInstance,
|
|
OUT VOID **Buffer,
|
|
OUT UINTN *Size
|
|
);
|
|
|
|
/**
|
|
Searches all the available firmware volumes and returns the first matching FFS section.
|
|
|
|
This function searches all the firmware volumes for FFS files with an FFS filename specified by NameGuid.
|
|
The order in which the firmware volumes are searched is not deterministic. For each FFS file found, a search
|
|
is made for FFS sections of type SectionType. If the FFS file contains at least SectionInstance instances
|
|
of the FFS section specified by SectionType, then the SectionInstance instance is returned in Buffer.
|
|
Buffer is allocated using AllocatePool(), and the size of the allocated buffer is returned in Size.
|
|
It is the caller's responsibility to use FreePool() to free the allocated buffer.
|
|
See EFI_FIRMWARE_VOLUME2_PROTOCOL.ReadSection() for details on how sections
|
|
are retrieved from an FFS file based on SectionType and SectionInstance.
|
|
|
|
If SectionType is EFI_SECTION_TE, and the search with an FFS file fails,
|
|
the search will be retried with a section type of EFI_SECTION_PE32.
|
|
This function must be called with a TPL <= TPL_NOTIFY.
|
|
|
|
If NameGuid is NULL, then ASSERT().
|
|
If Buffer is NULL, then ASSERT().
|
|
If Size is NULL, then ASSERT().
|
|
|
|
|
|
@param NameGuid A pointer to to the FFS filename GUID to search for
|
|
within any of the firmware volumes in the platform.
|
|
@param SectionType Indicates the FFS section type to search for within
|
|
the FFS file specified by NameGuid.
|
|
@param SectionInstance Indicates which section instance within the FFS file
|
|
specified by NameGuid to retrieve.
|
|
@param Buffer On output, a pointer to a callee-allocated buffer
|
|
containing the FFS file section that was found.
|
|
It is the caller's responsibility to free this
|
|
buffer using FreePool().
|
|
@param Size On output, a pointer to the size, in bytes, of Buffer.
|
|
|
|
@retval EFI_SUCCESS The specified FFS section was returned.
|
|
@retval EFI_NOT_FOUND The specified FFS section could not be found.
|
|
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to retrieve
|
|
the matching FFS section.
|
|
@retval EFI_DEVICE_ERROR The FFS section could not be retrieves due to a
|
|
device error.
|
|
@retval EFI_ACCESS_DENIED The FFS section could not be retrieves because the
|
|
firmware volume that contains the matching FFS
|
|
section does not allow reads.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
GetSectionFromAnyFv (
|
|
IN CONST EFI_GUID *NameGuid,
|
|
IN EFI_SECTION_TYPE SectionType,
|
|
IN UINTN SectionInstance,
|
|
OUT VOID **Buffer,
|
|
OUT UINTN *Size
|
|
);
|
|
|
|
/**
|
|
Searches the firmware volume that the currently executing module was loaded from and returns the first matching FFS section.
|
|
|
|
This function searches the firmware volume that the currently executing module was loaded
|
|
from for an FFS file with an FFS filename specified by NameGuid. If the FFS file is found, a search
|
|
is made for FFS sections of type SectionType. If the FFS file contains at least SectionInstance
|
|
instances of the FFS section specified by SectionType, then the SectionInstance instance is returned in Buffer.
|
|
Buffer is allocated using AllocatePool(), and the size of the allocated buffer is returned in Size.
|
|
It is the caller's responsibility to use FreePool() to free the allocated buffer.
|
|
See EFI_FIRMWARE_VOLUME2_PROTOCOL.ReadSection() for details on how sections are retrieved from
|
|
an FFS file based on SectionType and SectionInstance.
|
|
|
|
If the currently executing module was not loaded from a firmware volume, then EFI_NOT_FOUND is returned.
|
|
If SectionType is EFI_SECTION_TE, and the search with an FFS file fails,
|
|
the search will be retried with a section type of EFI_SECTION_PE32.
|
|
|
|
This function must be called with a TPL <= TPL_NOTIFY.
|
|
If NameGuid is NULL, then ASSERT().
|
|
If Buffer is NULL, then ASSERT().
|
|
If Size is NULL, then ASSERT().
|
|
|
|
@param NameGuid A pointer to to the FFS filename GUID to search for
|
|
within the firmware volumes that the currently
|
|
executing module was loaded from.
|
|
@param SectionType Indicates the FFS section type to search for within
|
|
the FFS file specified by NameGuid.
|
|
@param SectionInstance Indicates which section instance within the FFS
|
|
file specified by NameGuid to retrieve.
|
|
@param Buffer On output, a pointer to a callee allocated buffer
|
|
containing the FFS file section that was found.
|
|
It is the caller's responsibility to free this buffer
|
|
using FreePool().
|
|
@param Size On output, a pointer to the size, in bytes, of Buffer.
|
|
|
|
|
|
@retval EFI_SUCCESS The specified FFS section was returned.
|
|
@retval EFI_NOT_FOUND The specified FFS section could not be found.
|
|
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to retrieve
|
|
the matching FFS section.
|
|
@retval EFI_DEVICE_ERROR The FFS section could not be retrieves due to a
|
|
device error.
|
|
@retval EFI_ACCESS_DENIED The FFS section could not be retrieves because the
|
|
firmware volume that contains the matching FFS
|
|
section does not allow reads.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
GetSectionFromFv (
|
|
IN CONST EFI_GUID *NameGuid,
|
|
IN EFI_SECTION_TYPE SectionType,
|
|
IN UINTN SectionInstance,
|
|
OUT VOID **Buffer,
|
|
OUT UINTN *Size
|
|
);
|
|
|
|
|
|
/**
|
|
Searches the FFS file the the currently executing module was loaded from and returns the first matching FFS section.
|
|
|
|
This function searches the FFS file that the currently executing module was loaded from for a FFS sections of type SectionType.
|
|
If the FFS file contains at least SectionInstance instances of the FFS section specified by SectionType,
|
|
then the SectionInstance instance is returned in Buffer. Buffer is allocated using AllocatePool(),
|
|
and the size of the allocated buffer is returned in Size. It is the caller's responsibility
|
|
to use FreePool() to free the allocated buffer. See EFI_FIRMWARE_VOLUME2_PROTOCOL.ReadSection() for
|
|
details on how sections are retrieved from an FFS file based on SectionType and SectionInstance.
|
|
|
|
If the currently executing module was not loaded from an FFS file, then EFI_NOT_FOUND is returned.
|
|
If SectionType is EFI_SECTION_TE, and the search with an FFS file fails,
|
|
the search will be retried with a section type of EFI_SECTION_PE32.
|
|
This function must be called with a TPL <= TPL_NOTIFY.
|
|
|
|
If Buffer is NULL, then ASSERT().
|
|
If Size is NULL, then ASSERT().
|
|
|
|
|
|
@param SectionType Indicates the FFS section type to search for within
|
|
the FFS file that the currently executing module
|
|
was loaded from.
|
|
@param SectionInstance Indicates which section instance to retrieve within
|
|
the FFS file that the currently executing module
|
|
was loaded from.
|
|
@param Buffer On output, a pointer to a callee allocated buffer
|
|
containing the FFS file section that was found.
|
|
It is the caller's responsibility to free this buffer
|
|
using FreePool().
|
|
@param Size On output, a pointer to the size, in bytes, of Buffer.
|
|
|
|
@retval EFI_SUCCESS The specified FFS section was returned.
|
|
@retval EFI_NOT_FOUND The specified FFS section could not be found.
|
|
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to retrieve
|
|
the matching FFS section.
|
|
@retval EFI_DEVICE_ERROR The FFS section could not be retrieves due to a
|
|
device error.
|
|
@retval EFI_ACCESS_DENIED The FFS section could not be retrieves because the
|
|
firmware volume that contains the matching FFS
|
|
section does not allow reads.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
GetSectionFromFfs (
|
|
IN EFI_SECTION_TYPE SectionType,
|
|
IN UINTN SectionInstance,
|
|
OUT VOID **Buffer,
|
|
OUT UINTN *Size
|
|
);
|
|
|
|
|
|
/**
|
|
Get the image file buffer data and buffer size by its device path.
|
|
|
|
Access the file either from a firmware volume, from a file system interface,
|
|
or from the load file interface.
|
|
|
|
Allocate memory to store the found image. The caller is responsible to free memory.
|
|
|
|
If FilePath is NULL, then NULL is returned.
|
|
If FileSize is NULL, then NULL is returned.
|
|
If AuthenticationStatus is NULL, then NULL is returned.
|
|
|
|
@param[in] BootPolicy The policy for Open Image File.If TRUE,
|
|
indicates that the request originates from
|
|
the boot manager, and that the boot manager is
|
|
attempting to load FilePath as a boot selection.
|
|
If FALSE, then FilePath must match an exact
|
|
file to be loaded.
|
|
@param[in] FilePath Pointer to the device path of the file that is abstracted to
|
|
the file buffer.
|
|
@param[out] FileSize Pointer to the size of the abstracted file buffer.
|
|
@param[out] AuthenticationStatus Pointer to the authentication status.
|
|
|
|
@retval NULL FilePath is NULL, or FileSize is NULL, or AuthenticationStatus is NULL, or the file can't be found.
|
|
@retval other The abstracted file buffer. The caller is responsible to free memory.
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
GetFileBufferByFilePath (
|
|
IN BOOLEAN BootPolicy,
|
|
IN CONST EFI_DEVICE_PATH_PROTOCOL *FilePath,
|
|
OUT UINTN *FileSize,
|
|
OUT UINT32 *AuthenticationStatus
|
|
);
|
|
|
|
/**
|
|
Searches all the available firmware volumes and returns the file device path of first matching
|
|
FFS section.
|
|
|
|
This function searches all the firmware volumes for FFS files with an FFS filename specified by NameGuid.
|
|
The order that the firmware volumes is searched is not deterministic. For each FFS file found a search
|
|
is made for FFS sections of type SectionType.
|
|
|
|
If SectionType is EFI_SECTION_TE, and the search with an FFS file fails,
|
|
the search will be retried with a section type of EFI_SECTION_PE32.
|
|
This function must be called with a TPL <= TPL_NOTIFY.
|
|
|
|
If NameGuid is NULL, then ASSERT().
|
|
|
|
@param NameGuid A pointer to to the FFS filename GUID to search for
|
|
within any of the firmware volumes in the platform.
|
|
@param SectionType Indicates the FFS section type to search for within
|
|
the FFS file specified by NameGuid.
|
|
@param SectionInstance Indicates which section instance within the FFS file
|
|
specified by NameGuid to retrieve.
|
|
@param FvFileDevicePath Device path for the target FFS
|
|
file.
|
|
|
|
@retval EFI_SUCCESS The specified file device path of FFS section was returned.
|
|
@retval EFI_NOT_FOUND The specified file device path of FFS section could not be found.
|
|
@retval EFI_DEVICE_ERROR The FFS section could not be retrieves due to a
|
|
device error.
|
|
@retval EFI_ACCESS_DENIED The FFS section could not be retrieves because the
|
|
firmware volume that contains the matching FFS section does not
|
|
allow reads.
|
|
@retval EFI_INVALID_PARAMETER FvFileDevicePath is NULL.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
GetFileDevicePathFromAnyFv (
|
|
IN CONST EFI_GUID *NameGuid,
|
|
IN EFI_SECTION_TYPE SectionType,
|
|
IN UINTN SectionInstance,
|
|
OUT EFI_DEVICE_PATH_PROTOCOL **FvFileDevicePath
|
|
);
|
|
|
|
/**
|
|
Allocates one or more 4KB pages of a given type from a memory region that is
|
|
accessible to PEI.
|
|
|
|
Allocates the number of 4KB pages of type 'MemoryType' and returns a
|
|
pointer to the allocated buffer. The buffer returned is aligned on a 4KB
|
|
boundary. If Pages is 0, then NULL is returned. If there is not enough
|
|
memory remaining to satisfy the request, then NULL is returned.
|
|
|
|
@param[in] MemoryType The memory type to allocate
|
|
@param[in] Pages The number of 4 KB pages to allocate.
|
|
|
|
@return A pointer to the allocated buffer or NULL if allocation fails.
|
|
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
AllocatePeiAccessiblePages (
|
|
IN EFI_MEMORY_TYPE MemoryType,
|
|
IN UINTN Pages
|
|
);
|
|
|
|
#endif
|