-/** @file
- Provides library functions for common SMBIOS operations. Only available to DXE
- and UEFI module types.
-
-
-Copyright (c) 2012, Apple Inc. All rights reserved.
-Portitions Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
-This program and the accompanying materials are licensed and made available under
-the terms and conditions of the BSD License that accompanies this distribution.
-The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php.
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include <PiDxe.h>
-#include <Library/BaseLib.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/DebugLib.h>
-#include <Library/MemoryAllocationLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiLib.h>
-#include <Library/SmbiosLib.h>
-
-
-EFI_SMBIOS_PROTOCOL *gSmbios = NULL;
-
-
-/**
- Create an initial SMBIOS Table from an array of SMBIOS_TEMPLATE_ENTRY
- entries. SMBIOS_TEMPLATE_ENTRY.NULL indicates the end of the table.
-
- @param Template Array of SMBIOS_TEMPLATE_ENTRY entries.
-
- @retval EFI_SUCCESS New SMBIOS tables were created.
- @retval EFI_OUT_OF_RESOURCES New SMBIOS tables were not created.
-**/
-EFI_STATUS
-EFIAPI
-SmbiosLibInitializeFromTemplate (
- IN SMBIOS_TEMPLATE_ENTRY *Template
- )
-{
- EFI_STATUS Status;
- UINTN Index;
-
- if (Template == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- Status = EFI_SUCCESS;
-
- for (Index = 0; Template[Index].Entry != NULL; Index++) {
- Status = SmbiosLibCreateEntry (Template[Index].Entry, Template[Index].StringArray);
- }
-
- return Status;
-}
-
-
-
-/**
- Create SMBIOS record.
-
- Converts a fixed SMBIOS structure and an array of pointers to strings into
- an SMBIOS record where the strings are cat'ed on the end of the fixed record
- and terminated via a double NULL and add to SMBIOS table.
-
- SMBIOS_TABLE_TYPE32 gSmbiosType12 = {
- { EFI_SMBIOS_TYPE_SYSTEM_CONFIGURATION_OPTIONS, sizeof (SMBIOS_TABLE_TYPE12), 0 },
- 1 // StringCount
- };
- CHAR8 *gSmbiosType12Strings[] = {
- "Not Found",
- NULL
- };
-
- ...
- CreateSmbiosEntry (
- (EFI_SMBIOS_TABLE_HEADER*)&gSmbiosType12,
- gSmbiosType12Strings
- );
-
- @param SmbiosEntry Fixed SMBIOS structure
- @param StringArray Array of strings to convert to an SMBIOS string pack.
- NULL is OK.
-
-**/
-EFI_STATUS
-EFIAPI
-SmbiosLibCreateEntry (
- IN SMBIOS_STRUCTURE *SmbiosEntry,
- IN CHAR8 **StringArray
- )
-{
- EFI_STATUS Status;
- EFI_SMBIOS_HANDLE SmbiosHandle;
- EFI_SMBIOS_TABLE_HEADER *Record;
- UINTN Index;
- UINTN StringSize;
- UINTN Size;
- CHAR8 *Str;
-
- // Calculate the size of the fixed record and optional string pack
- Size = SmbiosEntry->Length;
- if (StringArray == NULL) {
- Size += 2; // Min string section is double null
- } else if (StringArray[0] == NULL) {
- Size += 2; // Min string section is double null
- } else {
- for (Index = 0; StringArray[Index] != NULL; Index++) {
- StringSize = AsciiStrSize (StringArray[Index]);
- Size += StringSize;
- }
- // Don't forget the terminating double null
- Size += 1;
- }
-
- // Copy over Template
- Record = (EFI_SMBIOS_TABLE_HEADER *)AllocateZeroPool (Size);
- if (Record == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
- CopyMem (Record, SmbiosEntry, SmbiosEntry->Length);
-
- if (StringArray != NULL) {
- // Append string pack
- Str = ((CHAR8 *)Record) + Record->Length;
- for (Index = 0; StringArray[Index] != NULL; Index++) {
- StringSize = AsciiStrSize (StringArray[Index]);
- CopyMem (Str, StringArray[Index], StringSize);
- Str += StringSize;
- }
- *Str = 0;
- }
-
- SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
- Status = gSmbios->Add (
- gSmbios,
- gImageHandle,
- &SmbiosHandle,
- Record
- );
-
- FreePool (Record);
- return Status;
-}
-
-
-
-/**
- Update the string associated with an existing SMBIOS record.
-
- This function allows the update of specific SMBIOS strings. The number of valid strings for any
- SMBIOS record is defined by how many strings were present when Add() was called.
-
- @param[in] SmbiosHandle SMBIOS Handle of structure that will have its string updated.
- @param[in] StringNumber The non-zero string number of the string to update.
- @param[in] String Update the StringNumber string with String.
-
- @retval EFI_SUCCESS SmbiosHandle had its StringNumber String updated.
- @retval EFI_INVALID_PARAMETER SmbiosHandle does not exist. Or String is invalid.
- @retval EFI_UNSUPPORTED String was not added because it is longer than the SMBIOS Table supports.
- @retval EFI_NOT_FOUND The StringNumber.is not valid for this SMBIOS record.
-**/
-EFI_STATUS
-EFIAPI
-SmbiosLibUpdateString (
- IN EFI_SMBIOS_HANDLE SmbiosHandle,
- IN SMBIOS_TABLE_STRING StringNumber,
- IN CHAR8 *String
- )
-{
- UINTN StringIndex;
-
- if (String == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (*String == '\0') {
- // A string with no data is not legal in SMBIOS
- return EFI_INVALID_PARAMETER;
- }
-
- StringIndex = StringNumber;
- return gSmbios->UpdateString (gSmbios, &SmbiosHandle, &StringIndex, String);
-}
-
-
-/**
- Update the string associated with an existing SMBIOS record.
-
- This function allows the update of specific SMBIOS strings. The number of valid strings for any
- SMBIOS record is defined by how many strings were present when Add() was called.
-
- @param[in] SmbiosHandle SMBIOS Handle of structure that will have its string updated.
- @param[in] StringNumber The non-zero string number of the string to update.
- @param[in] String Update the StringNumber string with String.
-
- @retval EFI_SUCCESS SmbiosHandle had its StringNumber String updated.
- @retval EFI_INVALID_PARAMETER SmbiosHandle does not exist. Or String is invalid.
- @retval EFI_UNSUPPORTED String was not added because it is longer than the SMBIOS Table supports.
- @retval EFI_NOT_FOUND The StringNumber.is not valid for this SMBIOS record.
-**/
-EFI_STATUS
-EFIAPI
-SmbiosLibUpdateUnicodeString (
- IN EFI_SMBIOS_HANDLE SmbiosHandle,
- IN SMBIOS_TABLE_STRING StringNumber,
- IN CHAR16 *String
- )
-{
- EFI_STATUS Status;
- UINTN StringIndex;
- CHAR8 *Ascii;
-
- if (String == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (*String == '\0') {
- // A string with no data is not legal in SMBIOS
- return EFI_INVALID_PARAMETER;
- }
-
- Ascii = AllocateZeroPool (StrSize (String));
- if (Ascii == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
- UnicodeStrToAsciiStr (String, Ascii);
-
- StringIndex = StringNumber;
- Status = gSmbios->UpdateString (gSmbios, &SmbiosHandle, &StringIndex, Ascii);
-
- FreePool (Ascii);
- return Status;
-}
-
-
-/**
- Allow caller to read a specific SMBIOS string
-
- @param[in] Header SMBIOS record that contains the string.
- @param[in[ StringNumber Instance of SMBIOS string 1 - N.
-
- @retval NULL Instance of Type SMBIOS string was not found.
- @retval Other Pointer to matching SMBIOS string.
-**/
-CHAR8 *
-EFIAPI
-SmbiosLibReadString (
- IN SMBIOS_STRUCTURE *Header,
- IN EFI_SMBIOS_STRING StringNumber
- )
-{
- CHAR8 *Data;
- UINTN Match;
-
- Data = (CHAR8 *)Header + Header->Length;
- for (Match = 1;!(*Data == 0 && *(Data+1) == 0); ) {
- if (StringNumber == Match) {
- return Data;
- }
- Data++;
- if (*(Data - 1) == '\0') {
- Match++;
- }
- }
-
- return NULL;
-}
-
-
-/**
- Allow the caller to discover a specific SMBIOS entry, and patch it if necissary.
-
- @param[in] Type Type of the next SMBIOS record to return.
- @param[in[ Instance Instance of SMBIOS record 0 - N-1.
- @param[out] SmbiosHandle Returns SMBIOS handle for the matching record.
-
- @retval NULL Instance of Type SMBIOS record was not found.
- @retval Other Pointer to matching SMBIOS record.
-**/
-SMBIOS_STRUCTURE *
-EFIAPI
-SmbiosLibGetRecord (
- IN EFI_SMBIOS_TYPE Type,
- IN UINTN Instance,
- OUT EFI_SMBIOS_HANDLE *SmbiosHandle
- )
-{
- EFI_STATUS Status;
- EFI_SMBIOS_TABLE_HEADER *Record;
- UINTN Match;
-
- Match = 0;
- *SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
- do {
- Status = gSmbios->GetNext (gSmbios, SmbiosHandle, &Type, &Record, NULL);
- if (!EFI_ERROR (Status)) {
- if (Match == Instance) {
- return (SMBIOS_STRUCTURE *)Record;
- }
- Match++;
- }
- } while (!EFI_ERROR (Status));
-
- return NULL;
-}
-
-
-/**
- Remove an SMBIOS record.
-
- This function removes an SMBIOS record using the handle specified by SmbiosHandle.
-
- @param[in] SmbiosHandle The handle of the SMBIOS record to remove.
-
- @retval EFI_SUCCESS SMBIOS record was removed.
- @retval EFI_INVALID_PARAMETER SmbiosHandle does not specify a valid SMBIOS record.
-**/
-EFI_STATUS
-EFIAPI
-SmbiosLibRemove (
- OUT EFI_SMBIOS_HANDLE SmbiosHandle
- )
-{
- return gSmbios->Remove (gSmbios, SmbiosHandle);
-}
-
-
-
-/**
-
- @param ImageHandle ImageHandle of the loaded driver.
- @param SystemTable Pointer to the EFI System Table.
-
- @retval EFI_SUCCESS Register successfully.
- @retval EFI_OUT_OF_RESOURCES No enough memory to register this handler.
-**/
-EFI_STATUS
-EFIAPI
-SmbiosLibConstructor (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- return gBS->LocateProtocol (&gEfiSmbiosProtocolGuid, NULL, (VOID **)&gSmbios);
-}
-
+/** @file\r
+ Provides library functions for common SMBIOS operations. Only available to DXE\r
+ and UEFI module types.\r
+\r
+\r
+Copyright (c) 2012, Apple Inc. All rights reserved.\r
+Portitions Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials are licensed and made available under\r
+the terms and conditions of the BSD License that accompanies this distribution.\r
+The full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php.\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include <PiDxe.h>\r
+#include <Library/BaseLib.h>\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/DebugLib.h>\r
+#include <Library/MemoryAllocationLib.h>\r
+#include <Library/UefiBootServicesTableLib.h>\r
+#include <Library/UefiLib.h>\r
+#include <Library/SmbiosLib.h>\r
+\r
+\r
+EFI_SMBIOS_PROTOCOL *gSmbios = NULL;\r
+\r
+\r
+/**\r
+ Create an initial SMBIOS Table from an array of SMBIOS_TEMPLATE_ENTRY\r
+ entries. SMBIOS_TEMPLATE_ENTRY.NULL indicates the end of the table.\r
+\r
+ @param Template Array of SMBIOS_TEMPLATE_ENTRY entries.\r
+\r
+ @retval EFI_SUCCESS New SMBIOS tables were created.\r
+ @retval EFI_OUT_OF_RESOURCES New SMBIOS tables were not created.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SmbiosLibInitializeFromTemplate (\r
+ IN SMBIOS_TEMPLATE_ENTRY *Template\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ UINTN Index;\r
+\r
+ if (Template == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ Status = EFI_SUCCESS;\r
+\r
+ for (Index = 0; Template[Index].Entry != NULL; Index++) {\r
+ Status = SmbiosLibCreateEntry (Template[Index].Entry, Template[Index].StringArray);\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+\r
+\r
+/**\r
+ Create SMBIOS record.\r
+\r
+ Converts a fixed SMBIOS structure and an array of pointers to strings into\r
+ an SMBIOS record where the strings are cat'ed on the end of the fixed record\r
+ and terminated via a double NULL and add to SMBIOS table.\r
+\r
+ SMBIOS_TABLE_TYPE32 gSmbiosType12 = {\r
+ { EFI_SMBIOS_TYPE_SYSTEM_CONFIGURATION_OPTIONS, sizeof (SMBIOS_TABLE_TYPE12), 0 },\r
+ 1 // StringCount\r
+ };\r
+ CHAR8 *gSmbiosType12Strings[] = {\r
+ "Not Found",\r
+ NULL\r
+ };\r
+\r
+ ...\r
+ CreateSmbiosEntry (\r
+ (EFI_SMBIOS_TABLE_HEADER*)&gSmbiosType12,\r
+ gSmbiosType12Strings\r
+ );\r
+\r
+ @param SmbiosEntry Fixed SMBIOS structure\r
+ @param StringArray Array of strings to convert to an SMBIOS string pack.\r
+ NULL is OK.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SmbiosLibCreateEntry (\r
+ IN SMBIOS_STRUCTURE *SmbiosEntry,\r
+ IN CHAR8 **StringArray\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_SMBIOS_HANDLE SmbiosHandle;\r
+ EFI_SMBIOS_TABLE_HEADER *Record;\r
+ UINTN Index;\r
+ UINTN StringSize;\r
+ UINTN Size;\r
+ CHAR8 *Str;\r
+\r
+ // Calculate the size of the fixed record and optional string pack\r
+ Size = SmbiosEntry->Length;\r
+ if (StringArray == NULL) {\r
+ Size += 2; // Min string section is double null\r
+ } else if (StringArray[0] == NULL) {\r
+ Size += 2; // Min string section is double null\r
+ } else {\r
+ for (Index = 0; StringArray[Index] != NULL; Index++) {\r
+ StringSize = AsciiStrSize (StringArray[Index]);\r
+ Size += StringSize;\r
+ }\r
+ // Don't forget the terminating double null\r
+ Size += 1;\r
+ }\r
+\r
+ // Copy over Template\r
+ Record = (EFI_SMBIOS_TABLE_HEADER *)AllocateZeroPool (Size);\r
+ if (Record == NULL) {\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
+ CopyMem (Record, SmbiosEntry, SmbiosEntry->Length);\r
+\r
+ if (StringArray != NULL) {\r
+ // Append string pack\r
+ Str = ((CHAR8 *)Record) + Record->Length;\r
+ for (Index = 0; StringArray[Index] != NULL; Index++) {\r
+ StringSize = AsciiStrSize (StringArray[Index]);\r
+ CopyMem (Str, StringArray[Index], StringSize);\r
+ Str += StringSize;\r
+ }\r
+ *Str = 0;\r
+ }\r
+\r
+ SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;\r
+ Status = gSmbios->Add (\r
+ gSmbios,\r
+ gImageHandle,\r
+ &SmbiosHandle,\r
+ Record\r
+ );\r
+\r
+ FreePool (Record);\r
+ return Status;\r
+}\r
+\r
+\r
+\r
+/**\r
+ Update the string associated with an existing SMBIOS record.\r
+\r
+ This function allows the update of specific SMBIOS strings. The number of valid strings for any\r
+ SMBIOS record is defined by how many strings were present when Add() was called.\r
+\r
+ @param[in] SmbiosHandle SMBIOS Handle of structure that will have its string updated.\r
+ @param[in] StringNumber The non-zero string number of the string to update.\r
+ @param[in] String Update the StringNumber string with String.\r
+\r
+ @retval EFI_SUCCESS SmbiosHandle had its StringNumber String updated.\r
+ @retval EFI_INVALID_PARAMETER SmbiosHandle does not exist. Or String is invalid.\r
+ @retval EFI_UNSUPPORTED String was not added because it is longer than the SMBIOS Table supports.\r
+ @retval EFI_NOT_FOUND The StringNumber.is not valid for this SMBIOS record.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SmbiosLibUpdateString (\r
+ IN EFI_SMBIOS_HANDLE SmbiosHandle,\r
+ IN SMBIOS_TABLE_STRING StringNumber,\r
+ IN CHAR8 *String\r
+ )\r
+{\r
+ UINTN StringIndex;\r
+\r
+ if (String == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ if (*String == '\0') {\r
+ // A string with no data is not legal in SMBIOS\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ StringIndex = StringNumber;\r
+ return gSmbios->UpdateString (gSmbios, &SmbiosHandle, &StringIndex, String);\r
+}\r
+\r
+\r
+/**\r
+ Update the string associated with an existing SMBIOS record.\r
+\r
+ This function allows the update of specific SMBIOS strings. The number of valid strings for any\r
+ SMBIOS record is defined by how many strings were present when Add() was called.\r
+\r
+ @param[in] SmbiosHandle SMBIOS Handle of structure that will have its string updated.\r
+ @param[in] StringNumber The non-zero string number of the string to update.\r
+ @param[in] String Update the StringNumber string with String.\r
+\r
+ @retval EFI_SUCCESS SmbiosHandle had its StringNumber String updated.\r
+ @retval EFI_INVALID_PARAMETER SmbiosHandle does not exist. Or String is invalid.\r
+ @retval EFI_UNSUPPORTED String was not added because it is longer than the SMBIOS Table supports.\r
+ @retval EFI_NOT_FOUND The StringNumber.is not valid for this SMBIOS record.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SmbiosLibUpdateUnicodeString (\r
+ IN EFI_SMBIOS_HANDLE SmbiosHandle,\r
+ IN SMBIOS_TABLE_STRING StringNumber,\r
+ IN CHAR16 *String\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ UINTN StringIndex;\r
+ CHAR8 *Ascii;\r
+\r
+ if (String == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ if (*String == '\0') {\r
+ // A string with no data is not legal in SMBIOS\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ Ascii = AllocateZeroPool (StrSize (String));\r
+ if (Ascii == NULL) {\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
+ UnicodeStrToAsciiStr (String, Ascii);\r
+\r
+ StringIndex = StringNumber;\r
+ Status = gSmbios->UpdateString (gSmbios, &SmbiosHandle, &StringIndex, Ascii);\r
+\r
+ FreePool (Ascii);\r
+ return Status;\r
+}\r
+\r
+\r
+/**\r
+ Allow caller to read a specific SMBIOS string\r
+\r
+ @param[in] Header SMBIOS record that contains the string.\r
+ @param[in[ StringNumber Instance of SMBIOS string 1 - N.\r
+\r
+ @retval NULL Instance of Type SMBIOS string was not found.\r
+ @retval Other Pointer to matching SMBIOS string.\r
+**/\r
+CHAR8 *\r
+EFIAPI\r
+SmbiosLibReadString (\r
+ IN SMBIOS_STRUCTURE *Header,\r
+ IN EFI_SMBIOS_STRING StringNumber\r
+ )\r
+{\r
+ CHAR8 *Data;\r
+ UINTN Match;\r
+\r
+ Data = (CHAR8 *)Header + Header->Length;\r
+ for (Match = 1;!(*Data == 0 && *(Data+1) == 0); ) {\r
+ if (StringNumber == Match) {\r
+ return Data;\r
+ }\r
+ Data++;\r
+ if (*(Data - 1) == '\0') {\r
+ Match++;\r
+ }\r
+ }\r
+\r
+ return NULL;\r
+}\r
+\r
+\r
+/**\r
+ Allow the caller to discover a specific SMBIOS entry, and patch it if necissary.\r
+\r
+ @param[in] Type Type of the next SMBIOS record to return.\r
+ @param[in[ Instance Instance of SMBIOS record 0 - N-1.\r
+ @param[out] SmbiosHandle Returns SMBIOS handle for the matching record.\r
+\r
+ @retval NULL Instance of Type SMBIOS record was not found.\r
+ @retval Other Pointer to matching SMBIOS record.\r
+**/\r
+SMBIOS_STRUCTURE *\r
+EFIAPI\r
+SmbiosLibGetRecord (\r
+ IN EFI_SMBIOS_TYPE Type,\r
+ IN UINTN Instance,\r
+ OUT EFI_SMBIOS_HANDLE *SmbiosHandle\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_SMBIOS_TABLE_HEADER *Record;\r
+ UINTN Match;\r
+\r
+ Match = 0;\r
+ *SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;\r
+ do {\r
+ Status = gSmbios->GetNext (gSmbios, SmbiosHandle, &Type, &Record, NULL);\r
+ if (!EFI_ERROR (Status)) {\r
+ if (Match == Instance) {\r
+ return (SMBIOS_STRUCTURE *)Record;\r
+ }\r
+ Match++;\r
+ }\r
+ } while (!EFI_ERROR (Status));\r
+\r
+ return NULL;\r
+}\r
+\r
+\r
+/**\r
+ Remove an SMBIOS record.\r
+\r
+ This function removes an SMBIOS record using the handle specified by SmbiosHandle.\r
+\r
+ @param[in] SmbiosHandle The handle of the SMBIOS record to remove.\r
+\r
+ @retval EFI_SUCCESS SMBIOS record was removed.\r
+ @retval EFI_INVALID_PARAMETER SmbiosHandle does not specify a valid SMBIOS record.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SmbiosLibRemove (\r
+ OUT EFI_SMBIOS_HANDLE SmbiosHandle\r
+ )\r
+{\r
+ return gSmbios->Remove (gSmbios, SmbiosHandle);\r
+}\r
+\r
+\r
+\r
+/**\r
+\r
+ @param ImageHandle ImageHandle of the loaded driver.\r
+ @param SystemTable Pointer to the EFI System Table.\r
+\r
+ @retval EFI_SUCCESS Register successfully.\r
+ @retval EFI_OUT_OF_RESOURCES No enough memory to register this handler.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SmbiosLibConstructor (\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
+ )\r
+{\r
+ return gBS->LocateProtocol (&gEfiSmbiosProtocolGuid, NULL, (VOID **)&gSmbios);\r
+}\r
+\r
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