I have tried to disable it using setcpi utility and it remains the same value. Also the flashrom utility also tries but it remains the same.
Warning: BIOS region SMM protection is enabled!
Warning: Setting Bios Control at 0xdc from 0xab to 0x89 failed.
Also FLOCKDN=1 is set as 1 as well.
I can clearly tell the BIOS region is read and writable but Protected registers are read only that's also the reason I am not able to write the BIOS region.
What are the options/methods to unlock / disable the Bios Write enable(BIOS_CNTL) or to access the HSFS registers to set the FLOCKDN bit to 0.