mirror of https://github.com/acidanthera/audk.git
IntelSiliconPkg: Add DxeSmbiosDataHobLib
Added NULL Library constructor DxeSmbiosDataHobLib which adds SMBIOS records from gIntelSmbiosDataHobGuid HOB to SMBIOS table using SMBIOS protocol. Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Giri P Mudusuru <giri.p.mudusuru@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
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Giri P Mudusuru
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fa1beef508
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0468303899
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/** @file
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Library to add SMBIOS data records from HOB to SMBIOS table.
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Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License which accompanies this distribution.
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The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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@par Specification Reference:
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System Management BIOS (SMBIOS) Reference Specification v3.0.0
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dated 2015-Feb-12 (DSP0134)
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http://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.0.0.pdf
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**/
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#include <IndustryStandard/SmBios.h>
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#include <Library/UefiLib.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/DebugLib.h>
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#include <Library/HobLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Protocol/Smbios.h>
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/**
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Get the full size of SMBIOS structure including optional strings that follow the formatted structure.
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@note: This function is copy from SmbiosDxe in MdeModulePkg.
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@param[in] This The EFI_SMBIOS_PROTOCOL instance.
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@param[in] Head Pointer to the beginning of SMBIOS structure.
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@param[out] Size The returned size.
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@param[out] NumberOfStrings The returned number of optional strings that follow the formatted structure.
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@retval EFI_SUCCESS Size returned in Size.
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@retval EFI_INVALID_PARAMETER Input SMBIOS structure mal-formed or Size is NULL.
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**/
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EFI_STATUS
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EFIAPI
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GetSmbiosStructureSize (
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IN CONST EFI_SMBIOS_PROTOCOL *This,
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IN EFI_SMBIOS_TABLE_HEADER *Head,
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OUT UINTN *Size,
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OUT UINTN *NumberOfStrings
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)
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{
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UINTN FullSize;
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UINTN StrLen;
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UINTN MaxLen;
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INT8* CharInStr;
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if (Size == NULL || NumberOfStrings == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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FullSize = Head->Length;
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CharInStr = (INT8*)Head + Head->Length;
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*Size = FullSize;
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*NumberOfStrings = 0;
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StrLen = 0;
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//
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// look for the two consecutive zeros, check the string limit by the way.
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//
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while (*CharInStr != 0 || *(CharInStr+1) != 0) {
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if (*CharInStr == 0) {
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*Size += 1;
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CharInStr++;
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}
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if (This->MajorVersion < 2 || (This->MajorVersion == 2 && This->MinorVersion < 7)) {
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MaxLen = SMBIOS_STRING_MAX_LENGTH;
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} else if (This->MajorVersion < 3) {
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//
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// Reference SMBIOS 2.7, chapter 6.1.3, it will have no limit on the length of each individual text string.
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// However, the length of the entire structure table (including all strings) must be reported
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// in the Structure Table Length field of the SMBIOS Structure Table Entry Point,
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// which is a WORD field limited to 65,535 bytes.
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//
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MaxLen = SMBIOS_TABLE_MAX_LENGTH;
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} else {
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//
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// SMBIOS 3.0 defines the Structure table maximum size as DWORD field limited to 0xFFFFFFFF bytes.
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// Locate the end of string as long as possible.
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//
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MaxLen = SMBIOS_3_0_TABLE_MAX_LENGTH;
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}
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for (StrLen = 0 ; StrLen < MaxLen; StrLen++) {
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if (*(CharInStr+StrLen) == 0) {
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break;
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}
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}
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if (StrLen == MaxLen) {
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return EFI_INVALID_PARAMETER;
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}
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//
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// forward the pointer
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//
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CharInStr += StrLen;
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*Size += StrLen;
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*NumberOfStrings += 1;
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}
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//
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// count ending two zeros.
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//
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*Size += 2;
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return EFI_SUCCESS;
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}
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/**
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Adds SMBIOS records to tables
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@param[in] ImageHandle Image handle of this driver.
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@param[in] SystemTable Global system service table.
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@retval EFI_UNSUPPORTED - Could not locate SMBIOS protocol
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@retval EFI_OUT_OF_RESOURCES - Failed to allocate memory for SMBIOS HOB type.
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@retval EFI_SUCCESS - Successfully added SMBIOS records based on HOB.
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**/
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EFI_STATUS
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EFIAPI
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DxeSmbiosDataHobLibConstructor (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_PEI_HOB_POINTERS Hob;
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EFI_SMBIOS_HANDLE SmbiosHandle;
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EFI_SMBIOS_PROTOCOL *Smbios;
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EFI_STATUS Status;
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UINTN InstalledPayloadSize;
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UINTN MaxPayloadSize;
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UINT8 *RecordPtr;
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UINT16 RecordCount;
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UINTN StructureSize;
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UINTN NumberOfStrings;
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RecordCount = 0;
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DEBUG ((DEBUG_INFO, "Adding SMBIOS records from HOB..\n"));
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Status = gBS->LocateProtocol (&gEfiSmbiosProtocolGuid, NULL, (VOID **)&Smbios);
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if (Smbios == NULL) {
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DEBUG ((DEBUG_WARN, " Can't locate SMBIOS protocol\n"));
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return EFI_UNSUPPORTED;
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}
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///
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/// Get SMBIOS HOB data
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///
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for (Hob.Raw = GetHobList (); !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB (Hob)) {
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if ((GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_GUID_EXTENSION) && (CompareGuid (&Hob.Guid->Name, &gIntelSmbiosDataHobGuid))) {
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RecordPtr = (UINT8 *)Hob.Raw + sizeof (EFI_HOB_GUID_TYPE);
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MaxPayloadSize = Hob.Guid->Header.HobLength - sizeof (EFI_HOB_GUID_TYPE);
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InstalledPayloadSize = 0;
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do {
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StructureSize = 0;
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Status = GetSmbiosStructureSize (Smbios, (EFI_SMBIOS_TABLE_HEADER *)RecordPtr, &StructureSize, &NumberOfStrings);
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if ((Status == EFI_SUCCESS) && (InstalledPayloadSize + StructureSize <= MaxPayloadSize)) {
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InstalledPayloadSize += StructureSize;
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///
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/// Add generic SMBIOS HOB to SMBIOS table
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///
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DEBUG ((DEBUG_VERBOSE, " Add SMBIOS record type: %x\n", ((EFI_SMBIOS_TABLE_HEADER *) RecordPtr)->Type));
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SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
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Status = Smbios->Add (Smbios, NULL, &SmbiosHandle, (EFI_SMBIOS_TABLE_HEADER *) RecordPtr);
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if (!EFI_ERROR (Status)) {
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RecordPtr += StructureSize;
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RecordCount++;
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}
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} else {
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break;
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}
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} while (TRUE);
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}
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}
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DEBUG ((DEBUG_INFO, " Found %d Records and added to SMBIOS table.\n", RecordCount));
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return EFI_SUCCESS;
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}
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@ -0,0 +1,44 @@
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## @file
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# Component INF file for the DxeSmbiosDataHob library.
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#
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# Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
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#
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# This program and the accompanying materials are licensed and made available under
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# the terms and conditions of the BSD License which accompanies this distribution.
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# The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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##
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[Defines]
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INF_VERSION = 0x00010017
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BASE_NAME = DxeSmbiosDataHobLib
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FILE_GUID = AF55A9B6-2AE6-4B08-8CF7-750B7CBF49D7
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MODULE_TYPE = DXE_DRIVER
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LIBRARY_CLASS = NULL|DXE_DRIVER
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CONSTRUCTOR = DxeSmbiosDataHobLibConstructor
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[Packages]
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MdePkg/MdePkg.dec
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IntelSiliconPkg/IntelSiliconPkg.dec
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[Sources]
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DxeSmbiosDataHobLib.c
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[LibraryClasses]
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DebugLib
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BaseMemoryLib
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MemoryAllocationLib
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BaseLib
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HobLib
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UefiLib
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[Guids]
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gIntelSmbiosDataHobGuid ## CONSUMES
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[Depex]
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gEfiSmbiosProtocolGuid
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