0 Replies Latest reply on May 11, 2008 7:53 AM by cbid@tut.by

    Expanded Configuration Space

    cbid@tut.by
      How to read ECS?

      Hi!

      I’m trying to read an expanded configuration space (from 100h to 1FFh) of Device 24 of Phenom processor. I use the following function for that purpose

      function GetPCRD(Bus, Dev, Func, Reg : word): dword;
      begin
      SetPortLong($0CF8, $80000000 or ((Reg and $F00) shl 16) or (dword(Bus) shl 16) or ((dword(Dev) and
      $1f) shl 11) or ((dword(Func) and $07) shl 8) or (Reg and $fc));
      GetPCRD:=GetPortLong($0CFC);
      end;

      Unfortunately, the ECS is the same as base configuration space (00h – FFh). I have checked the EnableCf8ExtCfg bit of the NB_CFG MSR and it is set! Can someone help me please?