Please see my code below.
If you’ll notice, I’m passing
In EFI_SMBIOS_HANDLE InSmbiosHandle = 0xFFFE;EFI_SMBIOS_TYPE Type=160;
Which is as the header file“Smbios.h” and the protocol implementation
“SmbiosDxe.c”
Instruct. According to myunderstanding, GetNext should return the address of the
First table whose Type=160. I used SmbiosView.efi and saw that indeed such a
table
with Type=160 is present. I tried other valid Types too, though and the result
is the same.
What I expect to be returned isthe EFI_STATUS of “Success” and the correct
Address for the SmbiosRecordwith type=160. I’m getting neither. I’m getting an
EFI_STATUS
Code of 0xB58FBD02. At the veryleast, I would expect EFI_NOT_FOUND. According
To the protocol, this weird 0xB58FBD02should not be returned for EFI_STATUS.
I did search archives however,and it seems that others have had problems with
Smbios GetNext,
With no resolution that I saw.
The following two paths are the Smbios Protocolimplementation in the latest
EDK2 repo:
C:\edk2\MyWorkspace\MdeModulePkg\Universal\SmbiosDxe\SmbiosDxe.c
C:\edk2\MyWorkspace\MdeModulePkg\Universal\SmbiosDxe\Smbios.h
There is also a shell
toolC:\edk2\MyWorkspace\ShellPkg\Library\UefiShellDebug1CommandsLib\Sm
biosView which does not use the Smbios protocol at all. Itseems to use a
backdoor approach of
internal data structures. I wonder why ? Is this because theSmbios protocol
doesn’t work ?
We would like to use the Smbios Protocol because it’s simpleand provides what
we need.
We would like to avoid the backdoor approach embraced bySmbiosview if possible.
Can someone comment on my issue ? Am I using GetNextincorrectly ?
EFI_STATUSEFIAPISmbiosMain ( IN EFI_HANDLE ImageHandle, IN
EFI_SYSTEM_TABLE *SystemTable ){
EFI_SMBIOS_PROTOCOL Smb; EFI_STATUS Status = EFI_SUCCESS;
EFI_SMBIOS_HANDLE InSmbiosHandle = 0xFFFE; EFI_SMBIOS_TYPE Type=160;
EFI_SMBIOS_TABLE_HEADER *SmbiosRecord = NULL; KNL_GENERAL_INFORMATION knl;
UINT16 size = 0; Status = gBS->LocateProtocol (&gEfiSmbiosProtocolGuid, NULL,
(VOID **) &Smb);
if (EFI_ERROR (Status)) { return Status; }
Print(L"Status after gBS->LocateProtocol: %r\n", Status);
SmbiosRecord = AllocateZeroPool (sizeof(EFI_SMBIOS_TABLE_HEADER)); Status =
Smb.GetNext (&Smb, &InSmbiosHandle, &Type, &SmbiosRecord, NULL);
Print(L"Status after SmbiosProtocol->GetNext: %r\n", Status);
if (EFI_ERROR (Status)) { return Status; }
Print(L"Smbios In Handle: %d\n", InSmbiosHandle); Print(L"SmbiosRecord
Address : 0X%llx\n", &SmbiosRecord); Print(L"SmbiosRecord->Type : %d\n",
SmbiosRecord->Type); Print(L"SmbiosRecord->Length : %d\n\n",
SmbiosRecord->Length); Print(L"SmbiosRecord->Handle : %d\n\n",
SmbiosRecord->Handle); Print(L"Sizeof SmbiosRecord : %d\n",
sizeof(SmbiosRecord));
FreePool (SmbiosRecord); return EFI_SUCCESS; Shubha D.
ramanishubharam...@gmail.com
shubharam...@yahoo.com------------------------------------------------------------------------------
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