mirror of
https://github.com/tianocore/edk2
synced 2026-08-27 00:23:19 -04:00
DynamicTablesPkg: Smbios Additional Information (Type 40)
Add a DynamicTables SMBIOS generator for the Additional Information
(Type 40) structure.
SMBIOS Type 40 provides additional information for fields in other
SMBIOS structures. Each Type 40 entry references an existing SMBIOS
record by handle and offset, provides an optional entry string, and
carries a supplemental field value.
The generator consumes one or more top-level CM objects, each referencing
a list of Additional Information entries. Each entry provides:
- the CM object token of the referenced SMBIOS structure,
- the referenced table generator ID,
- the offset of the referenced field,
- an optional entry string,
- a token to a typed Additional Information Value object.
Example platform CM object layout:
CM_ARCH_COMMON_ADDITIONAL_INFORMATION AdditionalInformation[] = {
{
REFERENCE_TOKEN (AdditionalInformation[0]),
REFERENCE_TOKEN (AdditionalInformationEntry[0])
}
};
CM_ARCH_COMMON_ADDITIONAL_INFORMATION_ENTRY
AdditionalInformationEntry[] = {
{
REFERENCE_TOKEN (MemoryDeviceInfo[0]),
CREATE_STD_SMBIOS_TABLE_GEN_ID (EStdSmbiosTableIdType17),
OFFSET_OF (SMBIOS_TABLE_TYPE17, MemoryType),
"DIMM0 memory type",
REFERENCE_TOKEN (AdditionalInformationValue[0])
}
};
CM_ARCH_COMMON_ADDITIONAL_INFORMATION_VALUE
AdditionalInformationValue[] = {
{
sizeof (UINT8),
{
MemoryTypeDram
}
}
};
The generator resolves referenced SMBIOS handles using CM object tokens
and table generator IDs. It validates the typed value objects, individual
entry lengths, and aggregate formatted record size. The maximum accepted
value length is controlled by PcdMaxAdditionalInformationValue.
Build the variable-length Type 40 formatted area and append the entry
strings to the SMBIOS string area.
Signed-off-by: Varshit Pandya <varshit.pandya@arm.com>
This commit is contained in:
VarshitPandya
mergify[bot]
parent
2bdb08ab00
commit
b551e8bb32
4 changed files with 801 additions and 0 deletions
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@ -66,6 +66,7 @@
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DynamicTablesPkg/Library/Smbios/SmbiosType28Lib/SmbiosType28Lib.inf
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DynamicTablesPkg/Library/Smbios/SmbiosType29Lib/SmbiosType29Lib.inf
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DynamicTablesPkg/Library/Smbios/SmbiosType37Lib/SmbiosType37Lib.inf
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DynamicTablesPkg/Library/Smbios/SmbiosType40Lib/SmbiosType40Lib.inf
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DynamicTablesPkg/Library/Smbios/SmbiosType44Lib/SmbiosType44Lib.inf
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# AML Fixup (Common)
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@ -185,6 +186,7 @@
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NULL|DynamicTablesPkg/Library/Smbios/SmbiosType28Lib/SmbiosType28Lib.inf
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NULL|DynamicTablesPkg/Library/Smbios/SmbiosType29Lib/SmbiosType29Lib.inf
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NULL|DynamicTablesPkg/Library/Smbios/SmbiosType37Lib/SmbiosType37Lib.inf
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NULL|DynamicTablesPkg/Library/Smbios/SmbiosType40Lib/SmbiosType40Lib.inf
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NULL|DynamicTablesPkg/Library/Smbios/SmbiosType44Lib/SmbiosType44Lib.inf
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}
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@ -97,5 +97,8 @@
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# Generate Tpm2 device table when generate TPM2 acpi table together.
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gEdkiiDynamicTablesPkgTokenSpaceGuid.PcdGenTpm2DeviceTable|FALSE|BOOLEAN|0x4000000B
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# Maximum number of Additional Information Value bytes used by SMBIOS Type 40.
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gEdkiiDynamicTablesPkgTokenSpaceGuid.PcdMaxAdditionalInformationValue|128|UINT8|0xC0000005
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[Guids]
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gEdkiiDynamicTablesPkgTokenSpaceGuid = { 0xab226e66, 0x31d8, 0x4613, { 0x87, 0x9d, 0xd2, 0xfa, 0xb6, 0x10, 0x26, 0x3c } }
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@ -0,0 +1,758 @@
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/** @file
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SMBIOS Type40 Table Generator.
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Copyright (c) 2026, Arm Limited. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Library/BaseMemoryLib.h>
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#include <Library/DebugLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/SmbiosStringTableLib.h>
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// Module specific include files.
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#include <ConfigurationManagerObject.h>
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#include <ConfigurationManagerHelper.h>
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#include <Protocol/ConfigurationManagerProtocol.h>
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#include <Protocol/DynamicTableFactoryProtocol.h>
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#include <IndustryStandard/SmBios.h>
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/** SMBIOS Type 40 Additional Information Generator
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Requirements:
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The following Configuration Manager Object(s) are required by
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this Generator:
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- EArchCommonObjAdditionalInformation
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- EArchCommonObjAdditionalInformationEntry
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- EArchCommonObjAdditionalInformationValue
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The Additional Information object provides the list of Type 40 entries.
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Each Additional Information Entry references the SMBIOS structure field
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being described and a value object containing the raw entry Value bytes.
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*/
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/**
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This macro expands to a function that retrieves the Additional Information
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object from the Configuration Manager.
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*/
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GET_OBJECT_LIST (
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EObjNameSpaceArchCommon,
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EArchCommonObjAdditionalInformation,
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CM_ARCH_COMMON_ADDITIONAL_INFORMATION
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);
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/**
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This macro expands to a function that retrieves the Additional Information
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Entry array from the Configuration Manager.
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*/
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GET_OBJECT_LIST (
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EObjNameSpaceArchCommon,
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EArchCommonObjAdditionalInformationEntry,
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CM_ARCH_COMMON_ADDITIONAL_INFORMATION_ENTRY
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);
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/**
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This macro expands to a function that retrieves the Additional Information
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Value bytes from the Configuration Manager.
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*/
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GET_OBJECT_LIST (
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EObjNameSpaceArchCommon,
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EArchCommonObjAdditionalInformationValue,
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CM_ARCH_COMMON_ADDITIONAL_INFORMATION_VALUE
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);
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/**
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Ensure the platform-configured maximum value size is non-zero and does not
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exceed the capacity of the Additional Information Value CM object.
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*/
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STATIC_ASSERT (
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(FixedPcdGet8 (PcdMaxAdditionalInformationValue) > 0) &&
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(FixedPcdGet8 (PcdMaxAdditionalInformationValue) <=
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SMBIOS_MAX_ADDITIONAL_INFORMATION_VALUE_SIZE),
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"PcdMaxAdditionalInformationValue is invalid"
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);
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/** Validate an SMBIOS Type 40 CM object and calculate its record size.
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@param [in] TableFactoryProtocol Pointer to the SMBIOS table
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factory protocol.
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@param [in] CfgMgrProtocol Pointer to the Configuration
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Manager Protocol interface.
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@param [in] AdditionalInformation Pointer to the Additional
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Information CM object.
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@param [in] AdditionalInformationIndex Index of the Additional
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Information CM object.
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@param [out] AdditionalInformationEntry Pointer to the Additional
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Information Entry CM objects.
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@param [out] AdditionalInformationEntryCount Number of Additional
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Information Entry CM objects.
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@param [out] RecordSize Size of the formatted SMBIOS
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Type 40 record.
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@retval EFI_SUCCESS The CM object is valid.
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@retval EFI_INVALID_PARAMETER The CM object is invalid.
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@retval EFI_NOT_FOUND A referenced SMBIOS handle is not found.
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@retval Others Error returned by the Configuration Manager.
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**/
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STATIC
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EFI_STATUS
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ValidateSmbiosType40Table (
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IN CONST EDKII_DYNAMIC_TABLE_FACTORY_PROTOCOL *TableFactoryProtocol,
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IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CfgMgrProtocol,
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IN CONST CM_ARCH_COMMON_ADDITIONAL_INFORMATION *AdditionalInformation,
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IN UINTN AdditionalInformationIndex,
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OUT CM_ARCH_COMMON_ADDITIONAL_INFORMATION_ENTRY **AdditionalInformationEntry,
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OUT UINT32 *AdditionalInformationEntryCount,
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OUT UINTN *RecordSize
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)
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{
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EFI_STATUS Status;
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CM_ARCH_COMMON_ADDITIONAL_INFORMATION_VALUE *AdditionalInformationValue;
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SMBIOS_HANDLE ReferencedHandle;
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UINT32 AdditionalInformationValueCount;
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UINTN EntryIndex;
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UINTN EntryLength;
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if ((AdditionalInformation->AdditionalInformationToken == CM_NULL_TOKEN) ||
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(AdditionalInformation->AdditionalInformationEntryListToken == CM_NULL_TOKEN))
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{
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DEBUG ((
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DEBUG_ERROR,
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"%a: Invalid token for object %u\n",
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__func__,
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AdditionalInformationIndex
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));
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return EFI_INVALID_PARAMETER;
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}
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Status = GetEArchCommonObjAdditionalInformationEntry (
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CfgMgrProtocol,
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AdditionalInformation->AdditionalInformationEntryListToken,
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AdditionalInformationEntry,
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AdditionalInformationEntryCount
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);
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if (EFI_ERROR (Status)) {
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DEBUG ((
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DEBUG_ERROR,
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"%a: Failed to get Additional Information Entry CM Object "
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"for object %u. Status = %r\n",
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__func__,
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AdditionalInformationIndex,
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Status
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));
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return Status;
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}
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if ((*AdditionalInformationEntryCount == 0) ||
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(*AdditionalInformationEntryCount > MAX_UINT8))
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{
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DEBUG ((
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DEBUG_ERROR,
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"%a: Invalid Additional Information Entry count %u for object %u\n",
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__func__,
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*AdditionalInformationEntryCount,
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AdditionalInformationIndex
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));
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return EFI_INVALID_PARAMETER;
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}
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*RecordSize = OFFSET_OF (
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SMBIOS_TABLE_TYPE40,
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AdditionalInfoEntries
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);
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for (EntryIndex = 0;
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EntryIndex < *AdditionalInformationEntryCount;
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EntryIndex++)
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{
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if (((*AdditionalInformationEntry)[EntryIndex].ReferencedObjectToken ==
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CM_NULL_TOKEN) ||
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((*AdditionalInformationEntry)[EntryIndex].ValueToken == CM_NULL_TOKEN))
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{
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DEBUG ((
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DEBUG_ERROR,
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"%a: Invalid token for Additional Information Entry %u\n",
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__func__,
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EntryIndex
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));
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return EFI_INVALID_PARAMETER;
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}
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ReferencedHandle = TableFactoryProtocol->GetSmbiosHandleEx (
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(*AdditionalInformationEntry)[EntryIndex].ReferencedTableGeneratorId,
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(*AdditionalInformationEntry)[EntryIndex].ReferencedObjectToken
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);
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if (ReferencedHandle == SMBIOS_HANDLE_INVALID) {
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DEBUG ((
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DEBUG_ERROR,
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"%a: Failed to resolve referenced SMBIOS handle for Additional Information Entry %u\n",
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__func__,
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EntryIndex
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));
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return EFI_NOT_FOUND;
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}
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Status = GetEArchCommonObjAdditionalInformationValue (
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CfgMgrProtocol,
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(*AdditionalInformationEntry)[EntryIndex].ValueToken,
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&AdditionalInformationValue,
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&AdditionalInformationValueCount
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);
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if (EFI_ERROR (Status)) {
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DEBUG ((
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DEBUG_ERROR,
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"%a: Failed to get Additional Information Value CM Object for Entry %u. Status = %r\n",
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__func__,
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EntryIndex,
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Status
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));
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return Status;
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}
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if ((AdditionalInformationValue == NULL) ||
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(AdditionalInformationValueCount != 1) ||
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(AdditionalInformationValue->Len == 0) ||
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(AdditionalInformationValue->Len >
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FixedPcdGet8 (PcdMaxAdditionalInformationValue)))
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{
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DEBUG ((
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DEBUG_ERROR,
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"%a: Invalid Additional Information Value for Entry %u\n",
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__func__,
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EntryIndex
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));
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return EFI_INVALID_PARAMETER;
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}
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EntryLength = OFFSET_OF (ADDITIONAL_INFORMATION_ENTRY, Value) +
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AdditionalInformationValue->Len;
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if (EntryLength > MAX_UINT8) {
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DEBUG ((
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DEBUG_ERROR,
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"%a: Additional Information Entry %u length %u exceeds SMBIOS Type 40 limit\n",
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__func__,
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EntryIndex,
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EntryLength
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));
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return EFI_INVALID_PARAMETER;
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}
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*RecordSize += EntryLength;
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}
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if (*RecordSize > MAX_UINT8) {
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DEBUG ((
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DEBUG_ERROR,
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"%a: Type 40 record size %u exceeds SMBIOS header length limit\n",
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__func__,
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*RecordSize
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));
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return EFI_INVALID_PARAMETER;
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}
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return EFI_SUCCESS;
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}
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/** Construct SMBIOS Type 40 table describing Additional Information.
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If this function allocates any resources then they must be freed in
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FreeSmbiosType40TableEx().
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@param [in] This Pointer to the SMBIOS table generator.
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@param [in] TableFactoryProtocol Pointer to the SMBIOS table factory protocol.
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@param [in] SmbiosTableInfo Pointer to the SMBIOS table information.
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@param [in] CfgMgrProtocol Pointer to the Configuration Manager
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Protocol interface.
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@param [out] Table Pointer to the generated SMBIOS table.
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@param [out] CmObjectToken Pointer to the CM object token for the
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generated SMBIOS table.
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@param [out] TableCount Number of generated SMBIOS tables.
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@retval EFI_SUCCESS Table generated successfully.
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@retval EFI_INVALID_PARAMETER A parameter is invalid.
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@retval EFI_NOT_FOUND Required CM object is not found.
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@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
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**/
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STATIC
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EFI_STATUS
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EFIAPI
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BuildSmbiosType40TableEx (
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IN CONST SMBIOS_TABLE_GENERATOR *This,
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IN CONST EDKII_DYNAMIC_TABLE_FACTORY_PROTOCOL *CONST TableFactoryProtocol,
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IN CM_STD_OBJ_SMBIOS_TABLE_INFO *CONST SmbiosTableInfo,
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IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,
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OUT SMBIOS_STRUCTURE ***Table,
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OUT CM_OBJECT_TOKEN **CmObjectToken,
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OUT UINTN *CONST TableCount
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)
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{
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EFI_STATUS Status;
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CM_ARCH_COMMON_ADDITIONAL_INFORMATION *AdditionalInformation;
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CM_ARCH_COMMON_ADDITIONAL_INFORMATION_ENTRY *AdditionalInformationEntry;
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CM_ARCH_COMMON_ADDITIONAL_INFORMATION_VALUE *AdditionalInformationValue;
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UINT32 AdditionalInformationCount;
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UINT32 AdditionalInformationEntryCount;
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UINT32 AdditionalInformationValueCount;
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STRING_TABLE StrTable;
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SMBIOS_STRUCTURE **TableList;
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CM_OBJECT_TOKEN *CmObjectList;
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SMBIOS_TABLE_TYPE40 *SmbiosRecord;
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ADDITIONAL_INFORMATION_ENTRY *SmbiosEntry;
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SMBIOS_TABLE_STRING *EntryStringRef;
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SMBIOS_HANDLE ReferencedHandle;
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UINTN EntryLength;
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UINTN RecordSize;
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UINTN StringAreaSize;
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UINTN TableIndex;
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UINTN EntryIndex;
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BOOLEAN StrTableInitialized;
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AdditionalInformation = NULL;
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AdditionalInformationEntry = NULL;
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AdditionalInformationValue = NULL;
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AdditionalInformationCount = 0;
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AdditionalInformationEntryCount = 0;
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AdditionalInformationValueCount = 0;
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TableList = NULL;
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CmObjectList = NULL;
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SmbiosRecord = NULL;
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SmbiosEntry = NULL;
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EntryStringRef = NULL;
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RecordSize = 0;
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StringAreaSize = 0;
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StrTableInitialized = FALSE;
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ASSERT (This != NULL);
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ASSERT (TableFactoryProtocol != NULL);
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ASSERT (SmbiosTableInfo != NULL);
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ASSERT (CfgMgrProtocol != NULL);
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ASSERT (Table != NULL);
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ASSERT (CmObjectToken != NULL);
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ASSERT (TableCount != NULL);
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ASSERT (SmbiosTableInfo->TableGeneratorId == This->GeneratorID);
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if ((This == NULL) || (TableFactoryProtocol == NULL) ||
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(SmbiosTableInfo == NULL) || (CfgMgrProtocol == NULL) ||
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(Table == NULL) || (CmObjectToken == NULL) ||
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(TableCount == NULL))
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{
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DEBUG ((DEBUG_ERROR, "%a: Invalid Parameter\n", __func__));
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return EFI_INVALID_PARAMETER;
|
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}
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|
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if (SmbiosTableInfo->TableGeneratorId != This->GeneratorID) {
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DEBUG ((
|
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DEBUG_ERROR,
|
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"%a: Invalid Generator ID. Expected 0x%x, got 0x%x\n",
|
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__func__,
|
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This->GeneratorID,
|
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SmbiosTableInfo->TableGeneratorId
|
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));
|
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return EFI_INVALID_PARAMETER;
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}
|
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|
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*Table = NULL;
|
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*CmObjectToken = NULL;
|
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*TableCount = 0;
|
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|
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Status = GetEArchCommonObjAdditionalInformation (
|
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CfgMgrProtocol,
|
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CM_NULL_TOKEN,
|
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&AdditionalInformation,
|
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&AdditionalInformationCount
|
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);
|
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|
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if (EFI_ERROR (Status)) {
|
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DEBUG ((
|
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DEBUG_ERROR,
|
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"%a: Failed to get Additional Information CM Object. Status = %r\n",
|
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__func__,
|
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Status
|
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));
|
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return Status;
|
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}
|
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|
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if (AdditionalInformationCount == 0) {
|
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DEBUG ((
|
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DEBUG_ERROR,
|
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"%a: No Additional Information CM Objects found\n",
|
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__func__
|
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));
|
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return EFI_NOT_FOUND;
|
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}
|
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|
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TableList = AllocateZeroPool (
|
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sizeof (SMBIOS_STRUCTURE *) *
|
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AdditionalInformationCount
|
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);
|
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if (TableList == NULL) {
|
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Status = EFI_OUT_OF_RESOURCES;
|
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goto exitBuildSmbiosType40TableEx;
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}
|
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|
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CmObjectList = AllocateZeroPool (
|
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sizeof (CM_OBJECT_TOKEN) *
|
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AdditionalInformationCount
|
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);
|
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if (CmObjectList == NULL) {
|
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Status = EFI_OUT_OF_RESOURCES;
|
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goto exitBuildSmbiosType40TableEx;
|
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}
|
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|
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for (TableIndex = 0;
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TableIndex < AdditionalInformationCount;
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TableIndex++)
|
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{
|
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AdditionalInformationEntry = NULL;
|
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AdditionalInformationValue = NULL;
|
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AdditionalInformationEntryCount = 0;
|
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AdditionalInformationValueCount = 0;
|
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SmbiosRecord = NULL;
|
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SmbiosEntry = NULL;
|
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EntryStringRef = NULL;
|
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RecordSize = 0;
|
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StringAreaSize = 0;
|
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StrTableInitialized = FALSE;
|
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|
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Status = ValidateSmbiosType40Table (
|
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TableFactoryProtocol,
|
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CfgMgrProtocol,
|
||||
&AdditionalInformation[TableIndex],
|
||||
TableIndex,
|
||||
&AdditionalInformationEntry,
|
||||
&AdditionalInformationEntryCount,
|
||||
&RecordSize
|
||||
);
|
||||
if (EFI_ERROR (Status)) {
|
||||
goto exitBuildSmbiosType40TableEx;
|
||||
}
|
||||
|
||||
Status = StringTableInitialize (
|
||||
&StrTable,
|
||||
AdditionalInformationEntryCount
|
||||
);
|
||||
if (EFI_ERROR (Status)) {
|
||||
DEBUG ((
|
||||
DEBUG_ERROR,
|
||||
"%a: Failed to initialise Type 40 string table for object %u. "
|
||||
"Status = %r\n",
|
||||
__func__,
|
||||
TableIndex,
|
||||
Status
|
||||
));
|
||||
goto exitBuildSmbiosType40TableEx;
|
||||
}
|
||||
|
||||
StrTableInitialized = TRUE;
|
||||
|
||||
EntryStringRef = AllocateZeroPool (
|
||||
sizeof (SMBIOS_TABLE_STRING) *
|
||||
AdditionalInformationEntryCount
|
||||
);
|
||||
if (EntryStringRef == NULL) {
|
||||
Status = EFI_OUT_OF_RESOURCES;
|
||||
goto exitBuildSmbiosType40TableEx;
|
||||
}
|
||||
|
||||
for (EntryIndex = 0;
|
||||
EntryIndex < AdditionalInformationEntryCount;
|
||||
EntryIndex++)
|
||||
{
|
||||
if (AdditionalInformationEntry[EntryIndex].EntryString[0] != '\0') {
|
||||
Status = StringTableAddString (
|
||||
&StrTable,
|
||||
AdditionalInformationEntry[EntryIndex].EntryString,
|
||||
&EntryStringRef[EntryIndex]
|
||||
);
|
||||
if (EFI_ERROR (Status)) {
|
||||
DEBUG ((
|
||||
DEBUG_ERROR,
|
||||
"%a: Failed to add EntryString for Additional Information Entry %u. Status = %r\n",
|
||||
__func__,
|
||||
EntryIndex,
|
||||
Status
|
||||
));
|
||||
goto exitBuildSmbiosType40TableEx;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
SmbiosRecord = (SMBIOS_TABLE_TYPE40 *)AllocateSmbiosRecord (
|
||||
RecordSize,
|
||||
&StrTable
|
||||
);
|
||||
if (SmbiosRecord == NULL) {
|
||||
Status = EFI_OUT_OF_RESOURCES;
|
||||
goto exitBuildSmbiosType40TableEx;
|
||||
}
|
||||
|
||||
SmbiosRecord->Hdr.Type = EFI_SMBIOS_TYPE_ADDITIONAL_INFORMATION;
|
||||
SmbiosRecord->Hdr.Length = (UINT8)RecordSize;
|
||||
SmbiosRecord->Hdr.Handle = SMBIOS_HANDLE_PI_RESERVED;
|
||||
SmbiosRecord->NumberOfAdditionalInformationEntries =
|
||||
(UINT8)AdditionalInformationEntryCount;
|
||||
|
||||
SmbiosEntry = SmbiosRecord->AdditionalInfoEntries;
|
||||
|
||||
for (EntryIndex = 0;
|
||||
EntryIndex < AdditionalInformationEntryCount;
|
||||
EntryIndex++)
|
||||
{
|
||||
AdditionalInformationValue = NULL;
|
||||
AdditionalInformationValueCount = 0;
|
||||
|
||||
Status = GetEArchCommonObjAdditionalInformationValue (
|
||||
CfgMgrProtocol,
|
||||
AdditionalInformationEntry[EntryIndex].ValueToken,
|
||||
&AdditionalInformationValue,
|
||||
&AdditionalInformationValueCount
|
||||
);
|
||||
if (EFI_ERROR (Status)) {
|
||||
DEBUG ((
|
||||
DEBUG_ERROR,
|
||||
"%a: Failed to get Additional Information Value CM Object for Entry %u. Status = %r\n",
|
||||
__func__,
|
||||
EntryIndex,
|
||||
Status
|
||||
));
|
||||
goto exitBuildSmbiosType40TableEx;
|
||||
}
|
||||
|
||||
if ((AdditionalInformationValue == NULL) ||
|
||||
(AdditionalInformationValueCount != 1))
|
||||
{
|
||||
DEBUG ((
|
||||
DEBUG_ERROR,
|
||||
"%a: Invalid Additional Information Value CM Object for Entry %u\n",
|
||||
__func__,
|
||||
EntryIndex
|
||||
));
|
||||
Status = EFI_INVALID_PARAMETER;
|
||||
goto exitBuildSmbiosType40TableEx;
|
||||
}
|
||||
|
||||
ReferencedHandle = TableFactoryProtocol->GetSmbiosHandleEx (
|
||||
AdditionalInformationEntry[EntryIndex].ReferencedTableGeneratorId,
|
||||
AdditionalInformationEntry[EntryIndex].ReferencedObjectToken
|
||||
);
|
||||
|
||||
EntryLength = OFFSET_OF (ADDITIONAL_INFORMATION_ENTRY, Value) +
|
||||
AdditionalInformationValue->Len;
|
||||
|
||||
SmbiosEntry->EntryLength = (UINT8)EntryLength;
|
||||
SmbiosEntry->ReferencedHandle = ReferencedHandle;
|
||||
SmbiosEntry->ReferencedOffset =
|
||||
AdditionalInformationEntry[EntryIndex].ReferencedOffset;
|
||||
SmbiosEntry->EntryString = EntryStringRef[EntryIndex];
|
||||
|
||||
CopyMem (
|
||||
SmbiosEntry->Value,
|
||||
AdditionalInformationValue->Value,
|
||||
AdditionalInformationValue->Len
|
||||
);
|
||||
|
||||
SmbiosEntry = (ADDITIONAL_INFORMATION_ENTRY *)(
|
||||
(UINT8 *)SmbiosEntry + EntryLength
|
||||
);
|
||||
}
|
||||
|
||||
StringAreaSize = StringTableGetStringSetSize (&StrTable);
|
||||
|
||||
Status = StringTablePublishStringSet (
|
||||
&StrTable,
|
||||
(CHAR8 *)SmbiosRecord + RecordSize,
|
||||
StringAreaSize
|
||||
);
|
||||
if (EFI_ERROR (Status)) {
|
||||
DEBUG ((
|
||||
DEBUG_ERROR,
|
||||
"%a: Failed to publish Type 40 string set. Status = %r\n",
|
||||
__func__,
|
||||
Status
|
||||
));
|
||||
goto exitBuildSmbiosType40TableEx;
|
||||
}
|
||||
|
||||
TableList[TableIndex] = (SMBIOS_STRUCTURE *)SmbiosRecord;
|
||||
CmObjectList[TableIndex] =
|
||||
AdditionalInformation[TableIndex].AdditionalInformationToken;
|
||||
|
||||
SmbiosRecord = NULL;
|
||||
|
||||
if (StrTableInitialized) {
|
||||
StringTableFree (&StrTable);
|
||||
StrTableInitialized = FALSE;
|
||||
}
|
||||
|
||||
if (EntryStringRef != NULL) {
|
||||
FreePool (EntryStringRef);
|
||||
EntryStringRef = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
*Table = TableList;
|
||||
*CmObjectToken = CmObjectList;
|
||||
*TableCount = AdditionalInformationCount;
|
||||
Status = EFI_SUCCESS;
|
||||
|
||||
exitBuildSmbiosType40TableEx:
|
||||
if (StrTableInitialized) {
|
||||
StringTableFree (&StrTable);
|
||||
}
|
||||
|
||||
if (EntryStringRef != NULL) {
|
||||
FreePool (EntryStringRef);
|
||||
}
|
||||
|
||||
if (EFI_ERROR (Status)) {
|
||||
if (TableList != NULL) {
|
||||
for (TableIndex = 0;
|
||||
TableIndex < AdditionalInformationCount;
|
||||
TableIndex++)
|
||||
{
|
||||
if (TableList[TableIndex] != NULL) {
|
||||
FreePool (TableList[TableIndex]);
|
||||
}
|
||||
}
|
||||
|
||||
FreePool (TableList);
|
||||
}
|
||||
|
||||
if (CmObjectList != NULL) {
|
||||
FreePool (CmObjectList);
|
||||
}
|
||||
|
||||
if (SmbiosRecord != NULL) {
|
||||
FreePool (SmbiosRecord);
|
||||
}
|
||||
}
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
/** Free any resources allocated for constructing SMBIOS Type 40 table.
|
||||
|
||||
@param [in] This Pointer to the SMBIOS table generator.
|
||||
@param [in] TableFactoryProtocol Pointer to the SMBIOS table factory
|
||||
protocol.
|
||||
@param [in] SmbiosTableInfo Pointer to the SMBIOS table information.
|
||||
@param [in] CfgMgrProtocol Pointer to the Configuration Manager
|
||||
Protocol interface.
|
||||
@param [in] Table Pointer to the SMBIOS table.
|
||||
@param [in] CmObjectToken Pointer to the CM object token.
|
||||
@param [in] TableCount Number of generated SMBIOS tables.
|
||||
|
||||
@retval EFI_SUCCESS Resources freed successfully.
|
||||
@retval EFI_INVALID_PARAMETER A parameter is invalid.
|
||||
**/
|
||||
STATIC
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
FreeSmbiosType40TableEx (
|
||||
IN CONST SMBIOS_TABLE_GENERATOR *CONST This,
|
||||
IN CONST EDKII_DYNAMIC_TABLE_FACTORY_PROTOCOL *CONST TableFactoryProtocol,
|
||||
IN CONST CM_STD_OBJ_SMBIOS_TABLE_INFO *CONST SmbiosTableInfo,
|
||||
IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,
|
||||
IN SMBIOS_STRUCTURE ***CONST Table,
|
||||
IN CM_OBJECT_TOKEN **CmObjectToken,
|
||||
IN CONST UINTN TableCount
|
||||
)
|
||||
{
|
||||
UINTN Index;
|
||||
|
||||
if ((This == NULL) || (TableFactoryProtocol == NULL) ||
|
||||
(SmbiosTableInfo == NULL) || (CfgMgrProtocol == NULL) ||
|
||||
(Table == NULL) || (CmObjectToken == NULL))
|
||||
{
|
||||
DEBUG ((DEBUG_ERROR, "%a: Invalid Parameter\n", __func__));
|
||||
return EFI_INVALID_PARAMETER;
|
||||
}
|
||||
|
||||
if (*Table != NULL) {
|
||||
for (Index = 0; Index < TableCount; Index++) {
|
||||
if ((*Table)[Index] != NULL) {
|
||||
FreePool ((*Table)[Index]);
|
||||
}
|
||||
}
|
||||
|
||||
FreePool (*Table);
|
||||
*Table = NULL;
|
||||
}
|
||||
|
||||
if (*CmObjectToken != NULL) {
|
||||
FreePool (*CmObjectToken);
|
||||
*CmObjectToken = NULL;
|
||||
}
|
||||
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
/** The SMBIOS Type 40 Table Generator.
|
||||
*/
|
||||
STATIC CONST SMBIOS_TABLE_GENERATOR SmbiosType40Generator = {
|
||||
// Generator ID
|
||||
CREATE_STD_SMBIOS_TABLE_GEN_ID (EStdSmbiosTableIdType40),
|
||||
// Generator Description
|
||||
L"SMBIOS.TYPE40.GENERATOR",
|
||||
// SMBIOS structure type
|
||||
SMBIOS_TYPE_ADDITIONAL_INFORMATION,
|
||||
NULL,
|
||||
NULL,
|
||||
// Build table function.
|
||||
BuildSmbiosType40TableEx,
|
||||
// Free function.
|
||||
FreeSmbiosType40TableEx
|
||||
};
|
||||
|
||||
/** Register the Generator with the SMBIOS Table Factory.
|
||||
|
||||
@param [in] ImageHandle The handle to the image.
|
||||
@param [in] SystemTable Pointer to the System Table.
|
||||
|
||||
@retval EFI_SUCCESS The Generator is registered.
|
||||
@retval EFI_INVALID_PARAMETER A parameter is invalid.
|
||||
@retval EFI_ALREADY_STARTED The Generator for the Table ID
|
||||
is already registered.
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
SmbiosType40LibConstructor (
|
||||
IN EFI_HANDLE ImageHandle,
|
||||
IN EFI_SYSTEM_TABLE *SystemTable
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
|
||||
Status = RegisterSmbiosTableGenerator (&SmbiosType40Generator);
|
||||
DEBUG ((DEBUG_INFO, "SMBIOS Type 40: Register Generator. Status = %r\n", Status));
|
||||
ASSERT_EFI_ERROR (Status);
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
/** Deregister the Generator from the SMBIOS Table Factory.
|
||||
|
||||
@param [in] ImageHandle The handle to the image.
|
||||
@param [in] SystemTable Pointer to the System Table.
|
||||
|
||||
@retval EFI_SUCCESS The Generator is deregistered.
|
||||
@retval EFI_INVALID_PARAMETER A parameter is invalid.
|
||||
@retval EFI_NOT_FOUND The Generator is not registered.
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
SmbiosType40LibDestructor (
|
||||
IN EFI_HANDLE ImageHandle,
|
||||
IN EFI_SYSTEM_TABLE *SystemTable
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
|
||||
Status = DeregisterSmbiosTableGenerator (&SmbiosType40Generator);
|
||||
DEBUG ((DEBUG_INFO, "SMBIOS Type 40: Deregister Generator. Status = %r\n", Status));
|
||||
ASSERT_EFI_ERROR (Status);
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
|
@ -0,0 +1,38 @@
|
|||
## @file
|
||||
# SMBIOS Type40 Table Generator.
|
||||
#
|
||||
# Copyright (c) 2026, Arm Limited. All rights reserved.<BR>
|
||||
#
|
||||
# SPDX-License-Identifier: BSD-2-Clause-Patent
|
||||
##
|
||||
|
||||
[Defines]
|
||||
INF_VERSION = 0x0001001B
|
||||
BASE_NAME = SmbiosType40LibArm
|
||||
FILE_GUID = aae7f4ca-f8f5-460a-b0fa-91a478f273d4
|
||||
MODULE_TYPE = DXE_DRIVER
|
||||
VERSION_STRING = 1.0
|
||||
LIBRARY_CLASS = NULL|DXE_DRIVER
|
||||
CONSTRUCTOR = SmbiosType40LibConstructor
|
||||
DESTRUCTOR = SmbiosType40LibDestructor
|
||||
|
||||
[Sources]
|
||||
SmbiosType40Generator.c
|
||||
|
||||
[Packages]
|
||||
DynamicTablesPkg/DynamicTablesPkg.dec
|
||||
MdePkg/MdePkg.dec
|
||||
|
||||
[LibraryClasses]
|
||||
BaseLib
|
||||
BaseMemoryLib
|
||||
DebugLib
|
||||
MemoryAllocationLib
|
||||
SmbiosStringTableLib
|
||||
|
||||
[Protocols]
|
||||
gEdkiiConfigurationManagerProtocolGuid
|
||||
gEdkiiDynamicTableFactoryProtocolGuid
|
||||
|
||||
[FixedPcd]
|
||||
gEdkiiDynamicTablesPkgTokenSpaceGuid.PcdMaxAdditionalInformationValue
|
||||
Loading…
Add table
Add a link
Reference in a new issue