In BaseConfigBlockLib add function to get next config block from config blocks table in order to iterate over blocks of the same type.
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3700 Signed-off-by: Jakub Fedorowicz mailto:jakub.fedorow...@intel.com Cc: Ray Ni mailto:ray...@intel.com Cc: Rangasai V Chaganty mailto:rangasai.v.chaga...@intel.com --- .../Include/Library/ConfigBlockLib.h | 20 ++++++++ .../BaseConfigBlockLib/BaseConfigBlockLib.c | 50 +++++++++++++++++++ 2 files changed, 70 insertions(+) diff --git a/Silicon/Intel/IntelSiliconPkg/Include/Library/ConfigBlockLib.h b/Silicon/Intel/IntelSiliconPkg/Include/Library/ConfigBlockLib.h index 37a39681..77eff21b 100644 --- a/Silicon/Intel/IntelSiliconPkg/Include/Library/ConfigBlockLib.h +++ b/Silicon/Intel/IntelSiliconPkg/Include/Library/ConfigBlockLib.h @@ -45,6 +45,7 @@ AddConfigBlock ( /** Retrieve a specific Config Block data by GUID. + If there is more than one Config Block with given GUID, return the first found with given GUID. @param[in] ConfigBlockTableAddress - A pointer to the beginning of Config Block Table Address @param[in] ConfigBlockGuid - A pointer to the GUID uses to search specific Config Block @@ -61,4 +62,23 @@ GetConfigBlock ( OUT VOID **ConfigBlockAddress ); +/** + Search through ConfigBlockTable blocks to find following Config Block of the same GUID. + If there is no following Config Block found until the end of the table, return EFI_NOT_FOUND. + + @param[in] ConfigBlockTableAddress - A pointer to the beginning of Config Block Table + @param[in] ConfigBlockAddress - A pointer to the Config Block, against which the search begins + @param[out] NextConfigBlockAddress - On return, points to a pointer to the found Config Block + + @retval EFI_NOT_FOUND - Could not find the following Config Block + @retval EFI_SUCCESS - Config Block found and return +**/ +EFI_STATUS +EFIAPI +GetNextConfigBlock ( + IN VOID *ConfigBlockTableAddress, + IN VOID *ConfigBlockAddress, + OUT VOID **NextConfigBlockAddress + ); + #endif // _CONFIG_BLOCK_LIB_H_ diff --git a/Silicon/Intel/IntelSiliconPkg/Library/BaseConfigBlockLib/BaseConfigBlockLib.c b/Silicon/Intel/IntelSiliconPkg/Library/BaseConfigBlockLib/BaseConfigBlockLib.c index c89699ea..f026ac0b 100644 --- a/Silicon/Intel/IntelSiliconPkg/Library/BaseConfigBlockLib/BaseConfigBlockLib.c +++ b/Silicon/Intel/IntelSiliconPkg/Library/BaseConfigBlockLib/BaseConfi +++ gBlockLib.c @@ -95,6 +95,7 @@ AddConfigBlock ( /** Retrieve a specific Config Block data by GUID. + If there is more than one Config Block with given GUID, return the first found with given GUID. @param[in] ConfigBlockTableAddress - A pointer to the beginning of Config Block Table Address @param[in] ConfigBlockGuid - A pointer to the GUID uses to search specific Config Block @@ -137,3 +138,52 @@ GetConfigBlock ( return EFI_NOT_FOUND; } + +/** + Search through ConfigBlockTable blocks to find following Config Block of the same GUID. + If there is no following Config Block found until the end of the table, return EFI_NOT_FOUND. + + @param[in] ConfigBlockTableAddress - A pointer to the beginning of Config Block Table + @param[in] ConfigBlockAddress - A pointer to the Config Block, against which the search begins + @param[out] NextConfigBlockAddress - On return, points to a pointer to the found Config Block + + @retval EFI_NOT_FOUND - Could not find the following Config Block + @retval EFI_SUCCESS - Config Block found and return +**/ +EFI_STATUS +EFIAPI +GetNextConfigBlock ( + IN VOID *ConfigBlockTableAddress, + IN VOID *ConfigBlockAddress, + OUT VOID **NextConfigBlockAddress + ) +{ + CONFIG_BLOCK_TABLE_HEADER *ConfigBlkTblHdrPtr; + UINTN ConfigBlkTblEndAddr; + UINTN ConfigBlkOffset; + CONFIG_BLOCK *TempConfigBlk; + EFI_GUID *TargetGuid; + + ConfigBlkTblHdrPtr = (CONFIG_BLOCK_TABLE_HEADER *) + ConfigBlockTableAddress; ConfigBlkTblEndAddr = (UINTN) + ConfigBlockTableAddress + (UINTN) + ConfigBlkTblHdrPtr->Header.GuidHob.Header.HobLength; + + TempConfigBlk = (CONFIG_BLOCK *) ConfigBlockAddress; TargetGuid = + &(TempConfigBlk->Header.GuidHob.Name); + ConfigBlkOffset = (UINTN) ConfigBlockAddress + (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))) { + *NextConfigBlockAddress = (VOID *) TempConfigBlk; + return EFI_SUCCESS; + } + + ConfigBlkOffset += (UINTN) + TempConfigBlk->Header.GuidHob.Header.HobLength; + } + + return EFI_NOT_FOUND; +} -- 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. -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#83866): https://edk2.groups.io/g/devel/message/83866 Mute This Topic: https://groups.io/mt/87147363/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
