5 Replies Latest reply on Sep 4, 2015 5:35 PM by CMata_Intel

    Bios Locks for making changes to registers

    M_Sherlock

      Hi,

       

      I am trying to make changes the the Thermal Sensor Register located at IntelQNCLib.c

      ./QuarkSocPkg/QuarkNorthCluster/Library/IntelQNCLib/IntelQNCLib.c


      The register gets locked after it is set up in Bios so I cannot make changes to it

       

      I have taken out the lock located in this file but I am still not able to write to the Register

       

      I can read the register back without a problem using IOCTL through Side band
      from BIOS > kernel space > User space

       

      I try the opposite for write and it doesn't work
      User space > Kernel space > BIOS

       

       

       

      Is there other locks that I do not know about ?

       

      Is the way I am writing wrong ?

       

      Regards

      Mark