In BaseConfigBlockLib add function to get next config block from config blocks table in order to iterate over blocks of the same GUID. REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3700 Cc: Ray Ni ray.ni@intel.com Cc: Rangasai V Chaganty rangasai.v.chaganty@intel.com Signed-off-by: Jakub Fedorowicz jakub.fedorowicz@intel.com --- .../Include/Library/ConfigBlockLib.h | 20 +++++++ .../BaseConfigBlockLib/BaseConfigBlockLib.c | 54 ++++++++++++++++--- 2 files changed, 68 insertions(+), 6 deletions(-) diff --git a/Silicon/Intel/IntelSiliconPkg/Include/Library/ConfigBlockLib.h b/Silicon/Intel/IntelSiliconPkg/Include/Library/ConfigBlockLib.h index 37a396816..64a13bca9 100644 --- a/Silicon/Intel/IntelSiliconPkg/Include/Library/ConfigBlockLib.h +++ b/Silicon/Intel/IntelSiliconPkg/Include/Library/ConfigBlockLib.h @@ -9,6 +9,8 @@ #ifndef _CONFIG_BLOCK_LIB_H_ #define _CONFIG_BLOCK_LIB_H_ +#include + /** Create config block table. @@ -61,4 +63,22 @@ GetConfigBlock ( OUT VOID **ConfigBlockAddress ); +/** + Search through ConfigBlockTable blocks to find following Config Block of given GUID. + If there is no such following Config Block found until the end of the table, return EFI_NOT_FOUND. + + @param[in] ConfigBlockTable A pointer to the beginning of Config Block Table + @param[in] ConfigBlock A pointer to the Config Block, against which the search begins + @param[in] TargetGuid A pointer to the Guid of Config Block to find + + @return Pointer to config block, or NULL if config block of given guid was not found +**/ +CONFIG_BLOCK* +EFIAPI +GetNextConfigBlock ( + IN CONFIG_BLOCK_TABLE_HEADER *ConfigBlockTable, + IN CONFIG_BLOCK *ConfigBlock, + IN EFI_GUID *TargetGuid + ); + #endif // _CONFIG_BLOCK_LIB_H_ diff --git a/Silicon/Intel/IntelSiliconPkg/Library/BaseConfigBlockLib/BaseConfigBlockLib.c b/Silicon/Intel/IntelSiliconPkg/Library/BaseConfigBlockLib/BaseConfigBlockLib.c index c89699ea4..30847d561 100644 --- a/Silicon/Intel/IntelSiliconPkg/Library/BaseConfigBlockLib/BaseConfigBlockLib.c +++ b/Silicon/Intel/IntelSiliconPkg/Library/BaseConfigBlockLib/BaseConfigBlockLib.c @@ -5,7 +5,6 @@ Copyright (c) 2017 - 2019, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent **/ -#include #include #include #include @@ -14,12 +13,12 @@ SPDX-License-Identifier: BSD-2-Clause-Patent /** Create config block table. - @param[in] TotalSize - Max size to be allocated for the Config Block Table - @param[out] ConfigBlockTableAddress - On return, points to a pointer to the beginning of Config Block Table Address + @param[in] TotalSize Max size to be allocated for the Config Block Table + @param[out] ConfigBlockTableAddress On return, points to a pointer to the beginning of Config Block Table Address - @retval EFI_INVALID_PARAMETER - Invalid Parameter - @retval EFI_OUT_OF_RESOURCES - Out of resources - @retval EFI_SUCCESS - Successfully created Config Block Table at ConfigBlockTableAddress + @retval EFI_INVALID_PARAMETER Invalid Parameter + @retval EFI_OUT_OF_RESOURCES Out of resources + @retval EFI_SUCCESS Successfully created Config Block Table at ConfigBlockTableAddress **/ EFI_STATUS EFIAPI @@ -137,3 +136,46 @@ GetConfigBlock ( return EFI_NOT_FOUND; } + + +/** + Search through ConfigBlockTable blocks to find following Config Block of given GUID. + If there is no such following Config Block found until the end of the table, return EFI_NOT_FOUND. + + @param[in] ConfigBlockTable A pointer to the beginning of Config Block Table + @param[in] ConfigBlock A pointer to the Config Block, against which the search begins + @param[in] TargetGuid A pointer to the Guid of Config Block to find + + @return Pointer to config block, or NULL if config block of given guid was not found +**/ +CONFIG_BLOCK* +EFIAPI +GetNextConfigBlock ( + IN CONFIG_BLOCK_TABLE_HEADER *ConfigBlockTable, + IN CONFIG_BLOCK *ConfigBlock, + IN EFI_GUID *TargetGuid + ) +{ + CONFIG_BLOCK_TABLE_HEADER *ConfigBlkTblHdrPtr; + UINTN ConfigBlkTblEndAddr; + UINTN ConfigBlkOffset; + CONFIG_BLOCK *TempConfigBlk; + + ConfigBlkTblHdrPtr = ConfigBlockTable; + ConfigBlkTblEndAddr = (UINTN) ConfigBlockTable + (UINTN) ConfigBlkTblHdrPtr->Header.GuidHob.Header.HobLength; + TempConfigBlk = (CONFIG_BLOCK *) ConfigBlock; + ConfigBlkOffset = (UINTN) ConfigBlock + (UINTN) TempConfigBlk->Header.GuidHob.Header.HobLength; + + // + // Loop until exceeding ConfigBlockTable range + // + while (ConfigBlkOffset < ConfigBlkTblEndAddr) { + TempConfigBlk = (CONFIG_BLOCK *) ConfigBlkOffset; + if (CompareGuid (TargetGuid, &(TempConfigBlk->Header.GuidHob.Name))) { + return TempConfigBlk; + } + ConfigBlkOffset += (UINTN) TempConfigBlk->Header.GuidHob.Header.HobLength; + } + + return NULL; +} -- 2.30.0.windows.2 --------------------------------------------------------------------- Intel Technology Poland sp. z o.o. ul. Slowackiego 173 | 80-298 Gdansk | Sad Rejonowy Gdansk Polnoc | VII Wydzial Gospodarczy Krajowego Rejestru Sadowego - KRS 101882 | NIP 957-07-52-316 | Kapital zakladowy 200.000 PLN. Ta wiadomosc wraz z zalacznikami jest przeznaczona dla okreslonego adresata i moze zawierac informacje poufne. W razie przypadkowego otrzymania tej wiadomosci, prosimy o powiadomienie nadawcy oraz trwale jej usuniecie; jakiekolwiek przegladanie lub rozpowszechnianie jest zabronione. This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). If you are not the intended recipient, please contact the sender and delete all copies; any review or distribution by others is strictly prohibited.