From: "Sami Mujawar" <sami.mujawar@arm.com>
To: Girish Mahadevan <gmahadevan@nvidia.com>, devel@edk2.groups.io
Cc: Alexei.Fedorov@arm.com, pierre.gondois@arm.com,
jbrasen@nvidia.com, ashishsingha@nvidia.com, nramirez@nvidia.com,
wwatson@nvidia.com, Samer.El-Haj-Mahmoud@arm.com,
Akanksha.Jain2@arm.com, Matteo.Carlini@arm.com,
Ben.Adderson@arm.com, nd@arm.com
Subject: Re: [PATCH v1 1/1] DynamicTablesPkg: Add SMBIOS String table helper library
Date: Tue, 4 Oct 2022 09:16:19 +0100 [thread overview]
Message-ID: <d12e8dea-acd3-6193-9b89-5128008df462@arm.com> (raw)
In-Reply-To: <73ca18d0-1984-e428-2c2a-96244172e9f3@nvidia.com>
Hi Girish,
There are 2 cases that need handling. Please see my response inline
marked [SAMI].
Regards,
Sami Mujawar
On 04/10/2022 04:01 am, Girish Mahadevan wrote:
> Hello Sami,
>
> My apologies for the late response. I had one question/comment.
>
> Comment marked with [GM] inline.
>
> Best Regards
> Girish
>
> On 9/12/2022 8:18 AM, Sami Mujawar wrote:
>> External email: Use caution opening links or attachments
>>
>>
>> The Section 6.1.3, SMBIOS specification version 3.6.0 describes the
>> handling of test strings in SMBIOS tables.
>>
>> Test strings are added at the end of the formatted portion of the SMBIOS
>> structure and are referenced by index in the SMBIOS structure.
>>
>> Therefore, introduce a SmbiosStringTableLib to simplify the publishing
>> of the string set.
>>
>> SmbiosStringTableLib introduces a concept of string table which records
>> the references to the SMBIOS strings as they are added and returns an
>> string reference which is then assigned to the string field in the
>> formatted portion of the SMBIOS structure. Once all strings are added,
>> the library provides an interface to get the required size for the
>> string
>> set. This allows sufficient memory to be allocated for the SMBIOS table.
>> The library also provides an interface to publish the string set in
>> accordance with the SMBIOS specification.
>>
>> Example:
>> EFI_STATUS
>> BuildSmbiosType17Table () {
>> STRING_TABLE StrTable;
>> UINT8 DevLocatorRef;
>> UINT8 BankLocatorRef;
>> SMBIOS_TABLE_TYPE17 *SmbiosRecord;
>> CHAR8 *StringSet;
>> ...
>>
>> // Initialize string table for 7 strings
>> StringTableInitialize (&StrTable, 7);
>>
>> StringTableAddString (&StrTable, "SIMM 3", &DevLocatorRef);
>> StringTableAddString (&StrTable, "Bank 0", &BankLocatorRef);
>> ...
>>
>> SmbiosRecord = AllocateZeroPool (
>> sizeof (SMBIOS_TABLE_TYPE17) +
>> StringTableGetStringSetSize (&StrTable)
>> );
>> ...
>> SmbiosRecord->DeviceLocator = DevLocatorRef;
>> SmbiosRecord->BankLocator = BankLocatorRef;
>> ...
>> // get the string set area
>> StringSet = (CHAR8*)(SmbiosRecord + 1);
>>
>> // publish the string set
>> StringTablePublishStringSet (
>> &StrTable,
>> StringSet,
>> StringTableGetStringSetSize (&StrTable)
>> );
>>
>> // free string table
>> StringTableFree (&StrTable);
>>
>> return EFI_SUCCESS;
>> }
>>
>> Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
>> Cc: Alexei Fedorov <Alexei.Fedorov@arm.com>
>> Cc: Pierre Gondois <pierre.gondois@arm.com>
>> Cc: Girish Mahadevan <gmahadevan@nvidia.com>
>> Cc: Jeff Brasen <jbrasen@nvidia.com>
>> Cc: Ashish Singhal <ashishsingha@nvidia.com>
>> Cc: Nick Ramirez <nramirez@nvidia.com>
>> Cc: William Watson <wwatson@nvidia.com>
>> Cc: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
>> ---
>> The changes can be seen at:
>> https://github.com/samimujawar/edk2/tree/2370_smbios_stringlib_v1
>>
>> DynamicTablesPkg/DynamicTables.dsc.inc | 3 +-
>> DynamicTablesPkg/DynamicTablesPkg.dec | 5 +-
>> DynamicTablesPkg/DynamicTablesPkg.dsc | 3 +-
>> DynamicTablesPkg/Include/Library/SmbiosStringTableLib.h | 119 ++++++++++
>> DynamicTablesPkg/Library/Common/SmbiosStringTableLib/SmbiosStringTableLib.c
>> | 227 ++++++++++++++++++++
>> DynamicTablesPkg/Library/Common/SmbiosStringTableLib/SmbiosStringTableLib.inf
>> | 25 +++
>> 6 files changed, 379 insertions(+), 3 deletions(-)
>>
>> diff --git a/DynamicTablesPkg/DynamicTables.dsc.inc
>> b/DynamicTablesPkg/DynamicTables.dsc.inc
>> index
>> 3d4fa0c4c4b67d6770aee8705c80cc18d20c823a..d35acc1788f2ddc5e2b5fc3e4bedfd48251f7ec8
>> 100644
>> --- a/DynamicTablesPkg/DynamicTables.dsc.inc
>> +++ b/DynamicTablesPkg/DynamicTables.dsc.inc
>> @@ -1,7 +1,7 @@
>> ## @file
>> # Dsc include file for Dynamic Tables Framework.
>> #
>> -# Copyright (c) 2017 - 2021, Arm Limited. All rights reserved.<BR>
>> +# Copyright (c) 2017 - 2022, Arm Limited. All rights reserved.<BR>
>> #
>> # SPDX-License-Identifier: BSD-2-Clause-Patent
>> #
>> @@ -18,6 +18,7 @@ [LibraryClasses.common]
>> SsdtPcieSupportLib|DynamicTablesPkg/Library/Common/SsdtPcieSupportLib/SsdtPcieSupportLib.inf
>> SsdtSerialPortFixupLib|DynamicTablesPkg/Library/Common/SsdtSerialPortFixupLib/SsdtSerialPortFixupLib.inf
>> TableHelperLib|DynamicTablesPkg/Library/Common/TableHelperLib/TableHelperLib.inf
>> +
>> SmbiosStringTableLib|DynamicTablesPkg/Library/Common/SmbiosStringTableLib/SmbiosStringTableLib.inf
>>
>> [Components.common]
>> #
>> diff --git a/DynamicTablesPkg/DynamicTablesPkg.dec
>> b/DynamicTablesPkg/DynamicTablesPkg.dec
>> index
>> cc34c2bdd6ff9b5ca508961b3d0fe85ffbb73c12..2a79cfd4edebbdff05bee66fa01a17d68252e8a7
>> 100644
>> --- a/DynamicTablesPkg/DynamicTablesPkg.dec
>> +++ b/DynamicTablesPkg/DynamicTablesPkg.dec
>> @@ -1,7 +1,7 @@
>> ## @file
>> # dec file for Dynamic Tables Framework.
>> #
>> -# Copyright (c) 2017 - 2021, Arm Limited. All rights reserved.<BR>
>> +# Copyright (c) 2017 - 2022, Arm Limited. All rights reserved.<BR>
>> #
>> # SPDX-License-Identifier: BSD-2-Clause-Patent
>> #
>> @@ -39,6 +39,9 @@ [LibraryClasses]
>> ## @libraryclass Defines a set of helper methods.
>> TableHelperLib|Include/Library/TableHelperLib.h
>>
>> + ## @libraryclass Defines a set of SMBIOS string helper methods.
>> + SmbiosStringTableLib|Include/Library/SmbiosStringTableLib.h
>> +
>> [Protocols]
>> # Configuration Manager Protocol GUID
>> gEdkiiConfigurationManagerProtocolGuid = { 0xd85a4835, 0x5a82,
>> 0x4894, { 0xac, 0x2, 0x70, 0x6f, 0x43, 0xd5, 0x97, 0x8e } }
>> diff --git a/DynamicTablesPkg/DynamicTablesPkg.dsc
>> b/DynamicTablesPkg/DynamicTablesPkg.dsc
>> index
>> 07cc837552f587fe5bf9031e0061b0234e8698d4..bd5084a9008f040acdd16200ae8cdb23455ac101
>> 100644
>> --- a/DynamicTablesPkg/DynamicTablesPkg.dsc
>> +++ b/DynamicTablesPkg/DynamicTablesPkg.dsc
>> @@ -2,7 +2,7 @@
>> # Dsc file for Dynamic Tables Framework.
>> #
>> # Copyright (c) 2019, Linaro Limited. All rights reserved.<BR>
>> -# Copyright (c) 2019 - 2021, Arm Limited. All rights reserved.<BR>
>> +# Copyright (c) 2019 - 2022, Arm Limited. All rights reserved.<BR>
>> #
>> # SPDX-License-Identifier: BSD-2-Clause-Patent
>> #
>> @@ -46,6 +46,7 @@ [Components.common]
>> DynamicTablesPkg/Library/Common/TableHelperLib/TableHelperLib.inf
>> DynamicTablesPkg/Library/FdtHwInfoParserLib/FdtHwInfoParserLib.inf
>> DynamicTablesPkg/Library/Common/DynamicPlatRepoLib/DynamicPlatRepoLib.inf
>> +
>> DynamicTablesPkg/Library/Common/SmbiosStringTableLib/SmbiosStringTableLib.inf
>>
>> [BuildOptions]
>> *_*_*_CC_FLAGS = -D DISABLE_NEW_DEPRECATED_INTERFACES
>> diff --git a/DynamicTablesPkg/Include/Library/SmbiosStringTableLib.h
>> b/DynamicTablesPkg/Include/Library/SmbiosStringTableLib.h
>> new file mode 100644
>> index
>> 0000000000000000000000000000000000000000..246d4d30ddf901640ea720c108e2971552ec6c96
>> --- /dev/null
>> +++ b/DynamicTablesPkg/Include/Library/SmbiosStringTableLib.h
>> @@ -0,0 +1,119 @@
>> +/** @file
>> + SMBIOS String Table Helper library.
>> +
>> + Copyright (c) 2022, Arm Limited. All rights reserved.<BR>
>> + SPDX-License-Identifier: BSD-2-Clause-Patent
>> +**/
>> +
>> +#ifndef SMBIOS_STRING_TABLE_H_
>> +#define SMBIOS_STRING_TABLE_H_
>> +
>> +/** A structure representing a string in the string table.
>> +*/
>> +typedef struct StringElement {
>> + /// Length of the string (does not include the NULL termination)
>> + UINTN StringLen;
>> +
>> + /// Reference to the string
>> + CONST CHAR8 *String;
>> +} STRING_ELEMENT;
>> +
>> +/** A structure representing a string table.
>> +*/
>> +typedef struct StringTable {
>> + /// Count of strings in the table
>> + UINT8 StrCount;
>> +
>> + /// Total length of all strings in the table (does not include
>> + // the NULL termination for each string)
>> + UINTN TotalStrLen;
>> +
>> + /// Maximum string count
>> + UINT8 MaxStringElements;
>> +
>> + /// Pointer to the string table elements
>> + STRING_ELEMENT *Elements;
>> +} STRING_TABLE;
>> +
>> +/** Add a string to the string table
>> +
>> + @param [IN] StrTable Pointer to the string table
>> + @param [IN] Str Pointer to the string
>> + @param [OUT] StrRef Optional pointer to retrieve the string field
>> + reference of the string in the string table
>> +
>> + @return EFI_SUCCESS Success
>> + @return EFI_INVALID_PARAMETER Invalid string table pointer
>> + @return EFI_BUFFER_TOO_SMALL Insufficient space to add string
>> +**/
>> +EFI_STATUS
>> +EFIAPI
>> +StringTableAddString (
>> + IN STRING_TABLE *CONST StrTable,
>> + IN CONST CHAR8 *Str,
>> + OUT UINT8 *StrRef OPTIONAL
>> + );
>> +
>> +/** Returns the total size required to publish the strings to the
>> SMBIOS
>> + string area.
>> +
>> + @param [IN] StrTable Pointer to the string table
>> +
>> + @return Total size required to publish the strings in the SMBIOS
>> string area.
>> +**/
>> +UINTN
>> +EFIAPI
>> +StringTableGetStringSetSize (
>> + IN STRING_TABLE *CONST StrTable
>> + );
>> +
>> +/** Iterate through the string table and publish the strings in the
>> SMBIOS
>> + string area.
>> +
>> + @param [IN] StrTable Pointer to the string table
>> + @param [IN] SmbiosStringAreaStart Start address of the SMBIOS
>> string area.
>> + @param [IN] SmbiosStringAreaSize Size of the SMBIOS string area.
>> +
>> + @return EFI_SUCCESS Success
>> + @return EFI_INVALID_PARAMETER Invalid string table pointer
>> + @return EFI_BUFFER_TOO_SMALL Insufficient space to publish strings
>> +**/
>> +EFI_STATUS
>> +EFIAPI
>> +StringTablePublishStringSet (
>> + IN STRING_TABLE *CONST StrTable,
>> + IN CHAR8 *CONST SmbiosStringAreaStart,
>> + IN CONST UINTN SmbiosStringAreaSize
>> + );
>> +
>> +/** Initialise the string table and allocate memory for the string
>> elements.
>> +
>> + @param [IN] StrTable Pointer to the string table
>> + @param [IN] MaxStringElements Maximum number of strings that the
>> string
>> + table can hold.
>> +
>> + @return EFI_SUCCESS Success
>> + @return EFI_INVALID_PARAMETER Invalid string table pointer
>> + @return EFI_OUT_OF_RESOURCES Failed to allocate memory for
>> string elements
>> +**/
>> +EFI_STATUS
>> +EFIAPI
>> +StringTableInitialize (
>> + IN STRING_TABLE *CONST StrTable,
>> + IN UINTN MaxStringElements
>> + );
>> +
>> +/** Free memory allocated for the string elements in the string table.
>> +
>> + @param [IN] StrTable Pointer to the string table
>> +
>> + @return EFI_SUCCESS Success
>> + @return EFI_INVALID_PARAMETER Invalid string table pointer or
>> string elements
>> +**/
>> +EFI_STATUS
>> +EFIAPI
>> +StringTableFree (
>> + IN STRING_TABLE *CONST StrTable
>> + );
>> +
>> +#endif // SMBIOS_STRING_TABLE_H_
>> diff --git
>> a/DynamicTablesPkg/Library/Common/SmbiosStringTableLib/SmbiosStringTableLib.c
>> b/DynamicTablesPkg/Library/Common/SmbiosStringTableLib/SmbiosStringTableLib.c
>>
>> new file mode 100644
>> index
>> 0000000000000000000000000000000000000000..bd186f27fe1613cf819b6600e62960c003a796d6
>> --- /dev/null
>> +++
>> b/DynamicTablesPkg/Library/Common/SmbiosStringTableLib/SmbiosStringTableLib.c
>> @@ -0,0 +1,227 @@
>> +/** @file
>> + SMBIOS String Table Helper
>> +
>> + Copyright (c) 2022, Arm Limited. All rights reserved.<BR>
>> +
>> + SPDX-License-Identifier: BSD-2-Clause-Patent
>> +
>> + @par Reference(s):
>> + - DSP0134 - SMBIOS Specification Version 3.6.0, 2022-06-17
>> +**/
>> +
>> +#include <Library/BaseLib.h>
>> +#include <Library/BaseMemoryLib.h>
>> +#include <Library/DebugLib.h>
>> +#include <Library/MemoryAllocationLib.h>
>> +#include <Library/SmbiosStringTableLib.h>
>> +
>> +/** Add a string to the string table
>> +
>> + @param [IN] StrTable Pointer to the string table
>> + @param [IN] Str Pointer to the string
>> + @param [OUT] StrRef Optional pointer to retrieve the string field
>> + reference of the string in the string table
>> +
>> + @return EFI_SUCCESS Success
>> + @return EFI_INVALID_PARAMETER Invalid string table pointer
>> + @return EFI_BUFFER_TOO_SMALL Insufficient space to add string
>> +**/
>> +EFI_STATUS
>> +EFIAPI
>> +StringTableAddString (
>> + IN STRING_TABLE *CONST StrTable,
>> + IN CONST CHAR8 *Str,
>> + OUT UINT8 *StrRef OPTIONAL
>> + )
>> +{
>> + UINTN StrLength;
>> + STRING_ELEMENT *StrElement;
>> +
>> + if ((StrTable == NULL) || (Str == NULL)) {
>> + return EFI_INVALID_PARAMETER;
>> + }
>> +
>> + if (StrTable->StrCount >= StrTable->MaxStringElements) {
>> + return EFI_BUFFER_TOO_SMALL;
>> + }
>> +
>> + StrLength = AsciiStrLen (Str);
>> + if (StrLength == 0) {
>> + return EFI_INVALID_PARAMETER;
>> + }
>> +
>> + // Update the string element
>> + StrElement = &StrTable->Elements[StrTable->StrCount];
>> + StrElement->StringLen = StrLength;
>> + StrElement->String = Str;
>> +
>> + // Update String table information
>> + StrTable->TotalStrLen += StrLength;
>> + StrTable->StrCount++;
>> +
>> + // Return the index of the string in the string table if requested
>> + if (StrRef != NULL) {
>> + // Note: SMBIOS string field references start at 1. So, return the
>> + // StrCount as the string refrence after it is updated.
>> + *StrRef = StrTable->StrCount;
>> + }
>> +
>> + return EFI_SUCCESS;
>> +}
>> +
>> +/** Returns the total size required to publish the strings to the
>> SMBIOS
>> + string area.
>> +
>> + @param [IN] StrTable Pointer to the string table
>> +
>> + @return Total size required to publish the strings in the SMBIOS
>> string area.
>> +**/
>> +UINTN
>> +EFIAPI
>> +StringTableGetStringSetSize (
>> + IN STRING_TABLE *CONST StrTable
>> + )
>> +{
>> + if (StrTable == NULL) {
>> + ASSERT (0);
>> + return 0;
>> + }
>> +
>> + // See Section 6.1.3 Text strings, SMBIOS Specification Version 3.6.0
>> + // - If the formatted portion of the structure contains
>> string-reference
>> + // fields and all the string fields are set to 0 (no string
>> references),
>> + // the formatted section of the structure is followed by two
>> null (00h)
>> + // BYTES.
>> + // - Each string is terminated with a null (00h) BYTE
>> + // - and the set of strings is terminated with an additional null
>> (00h) BYTE.
>> +
>> + // Therefore, if string count = 0, return 2
>> + // if string count > 0, the string set size =
>> + // StrTable->TotalStrLen (total length of the strings in the
>> string table)
>> + // + StrTable->StrCount (add string count to include '\0' for each
>> string)
>> + // +1 (an additional '\0' is required at the end of the string set).
>> + return (StrTable->StrCount == 0) ? 2 :
>> + (StrTable->TotalStrLen + StrTable->StrCount + 1);
>> +}
>> +
>> +/** Iterate through the string table and publish the strings in the
>> SMBIOS
>> + string area.
>> +
>> + @param [IN] StrTable Pointer to the string table
>> + @param [IN] SmbiosStringAreaStart Start address of the SMBIOS
>> string area.
>> + @param [IN] SmbiosStringAreaSize Size of the SMBIOS string area.
>> +
>> + @return EFI_SUCCESS Success
>> + @return EFI_INVALID_PARAMETER Invalid string table pointer
>> + @return EFI_BUFFER_TOO_SMALL Insufficient space to publish strings
>> +**/
>> +EFI_STATUS
>> +EFIAPI
>> +StringTablePublishStringSet (
>> + IN STRING_TABLE *CONST StrTable,
>> + IN CHAR8 *CONST SmbiosStringAreaStart,
>> + IN CONST UINTN SmbiosStringAreaSize
>> + )
>> +{
>> + UINT8 Index;
>> + STRING_ELEMENT *StrElement;
>> + CHAR8 *SmbiosString;
>> + UINTN BytesRemaining;
>> + UINTN BytesCopied;
>> +
>> + if ((StrTable == NULL) || (SmbiosStringAreaStart == NULL)) {
>> + return EFI_INVALID_PARAMETER;
>> + }
>> +
>> + if (SmbiosStringAreaSize < StringTableGetStringSetSize (StrTable)) {
>> + return EFI_BUFFER_TOO_SMALL;
>> + }
>> +
>> + SmbiosString = SmbiosStringAreaStart;
>> + BytesRemaining = SmbiosStringAreaSize;
[SAMI] SmbiosString points to the startof the sting storage area.
>> +
>> + if (StrTable->StrCount == 0) {
>> + // See Section 6.1.3 Text strings, SMBIOS Specification Version
>> 3.6.0
>> + // If the formatted portion of the structure contains
>> string-reference
>> + // fields and all the string fields are set to 0 (no string
>> references),
>> + // the formatted section of the structure is followed by two
>> null (00h)
>> + // BYTES.
>> + *SmbiosString++ = '\0';
[SAMI] Case 1: SmbiosString[0] is set to '\0' and the pointer is
incremented. So now it points to SmbiosString[1] which will be updated
with the String table null terminator before the function returns.
>> + } else {
>> + for (Index = 0; Index < StrTable->StrCount; Index++) {
>> + StrElement = &StrTable->Elements[Index];
>> + AsciiStrCpyS (SmbiosString, BytesRemaining, StrElement->String);
>> +
>> + // See Section 6.1.3 Text strings, SMBIOS Specification
>> Version 3.6.0
>> + // - Each string is terminated with a null (00h) BYTE
>> + // Bytes Copied = String length + 1 for the string NULL
>> terminator.
>> + BytesCopied = StrElement->StringLen + 1;
>> + BytesRemaining -= BytesCopied;
>> + SmbiosString += BytesCopied;
[SAMI] Case 2: AsciiStrCpyS() copies the string including the
terrminating null character and BytesCopied is incremented accordingly.
SmbiosString is then incremented by BytesCopied. So, SmbiosString should
point to the byte where the next string starts or will be updated with
the String table null terminator before the function returns.
>> + }
>> + }
>> +
>> + // See Section 6.1.3 Text strings, SMBIOS Specification Version 3.6.0
>> + // - the set of strings is terminated with an additional null
>> (00h) BYTE.
>> + *SmbiosString = '\0';
> [GM] Shouldn't you advance the SmbiosString pointer by one more ?
> After the loop isn't SmbiosString going to be at the NULL char of the
> last string ? And we're trying to add one more NULL character ?
> Should it be:
> SmbiosString++;
[SAMI] I don't think this increment is required for the reasons
explained above in Case 1 & Case 2. However, please let me know if I
have missed something.
> *SmbiosString = '\0';
>
>
>> + return EFI_SUCCESS;
>> +}
>> +
>> +/** Initialise the string table and allocate memory for the string
>> elements.
>> +
>> + @param [IN] StrTable Pointer to the string table
>> + @param [IN] MaxStringElements Maximum number of strings that the
>> string
>> + table can hold.
>> +
>> + @return EFI_SUCCESS Success
>> + @return EFI_INVALID_PARAMETER Invalid string table pointer
>> + @return EFI_OUT_OF_RESOURCES Failed to allocate memory for
>> string elements
>> +**/
>> +EFI_STATUS
>> +EFIAPI
>> +StringTableInitialize (
>> + IN STRING_TABLE *CONST StrTable,
>> + IN UINTN MaxStringElements
>> + )
>> +{
>> + STRING_ELEMENT *Elements;
>> +
>> + if ((StrTable == NULL) || (MaxStringElements > MAX_UINT8)) {
>> + return EFI_INVALID_PARAMETER;
>> + }
>> +
>> + ZeroMem (StrTable, sizeof (STRING_TABLE));
>> +
>> + Elements = (STRING_ELEMENT *)AllocateZeroPool (
>> + sizeof (STRING_ELEMENT) *
>> MaxStringElements
>> + );
>> + if (Elements == NULL) {
>> + return EFI_OUT_OF_RESOURCES;
>> + }
>> +
>> + StrTable->Elements = Elements;
>> + StrTable->MaxStringElements = (UINT8)MaxStringElements;
>> + return EFI_SUCCESS;
>> +}
>> +
>> +/** Free memory allocated for the string elements in the string table.
>> +
>> + @param [IN] StrTable Pointer to the string table
>> +
>> + @return EFI_SUCCESS Success
>> + @return EFI_INVALID_PARAMETER Invalid string table pointer or
>> string elements
>> +**/
>> +EFI_STATUS
>> +EFIAPI
>> +StringTableFree (
>> + IN STRING_TABLE *CONST StrTable
>> + )
>> +{
>> + if ((StrTable == NULL) || (StrTable->Elements == NULL)) {
>> + return EFI_INVALID_PARAMETER;
>> + }
>> +
>> + FreePool (StrTable->Elements);
>> + ZeroMem (StrTable, sizeof (STRING_TABLE));
>> + return EFI_SUCCESS;
>> +}
>> diff --git
>> a/DynamicTablesPkg/Library/Common/SmbiosStringTableLib/SmbiosStringTableLib.inf
>> b/DynamicTablesPkg/Library/Common/SmbiosStringTableLib/SmbiosStringTableLib.inf
>>
>> new file mode 100644
>> index
>> 0000000000000000000000000000000000000000..88624c50e3f3e930074222b6d686f75485538b26
>> --- /dev/null
>> +++
>> b/DynamicTablesPkg/Library/Common/SmbiosStringTableLib/SmbiosStringTableLib.inf
>> @@ -0,0 +1,25 @@
>> +## @file
>> +# SMBIOS String Table Helper library.
>> +#
>> +# Copyright (c) 2022, Arm Limited. All rights reserved.
>> +#
>> +# SPDX-License-Identifier: BSD-2-Clause-Patent
>> +##
>> +
>> +[Defines]
>> + INF_VERSION = 0x0001001B
>> + BASE_NAME = SmbiosStringTableLib
>> + FILE_GUID = 8C570DD8-531E-473F-85C6-9252746DBAC1
>> + VERSION_STRING = 1.0
>> + MODULE_TYPE = DXE_DRIVER
>> + LIBRARY_CLASS = SmbiosStringTableLib
>> +
>> +[Sources]
>> + SmbiosStringTableLib.c
>> +
>> +[Packages]
>> + MdePkg/MdePkg.dec
>> + DynamicTablesPkg/DynamicTablesPkg.dec
>> +
>> +[LibraryClasses]
>> + BaseLib
>> --
>> 'Guid(CE165669-3EF3-493F-B85D-6190EE5B9759)'
>>
next prev parent reply other threads:[~2022-10-04 8:16 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-12 14:18 [PATCH v1 1/1] DynamicTablesPkg: Add SMBIOS String table helper library Sami Mujawar
2022-09-12 15:02 ` Sami Mujawar
2022-09-13 3:24 ` [edk2-devel] " Chang, Abner
2022-10-04 3:01 ` Girish Mahadevan
2022-10-04 8:16 ` Sami Mujawar [this message]
2022-10-04 14:38 ` Girish Mahadevan
2022-10-04 8:21 ` PierreGondois
2023-03-09 11:11 ` [edk2-devel] " Sami Mujawar
2023-03-10 7:50 ` PierreGondois
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--in-reply-to=d12e8dea-acd3-6193-9b89-5128008df462@arm.com \
--to=devel@edk2.groups.io \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
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for how to clone and mirror all data and code used for this inbox