spd_wd moduleΒΆ

This module checks that SPD Write Disable bit in SMBus controller has been set

References:

Intel 8 Series/C220 Series Chipset Family Platform Controller Hub datasheet Intel 300 Series Chipset Families Platform Controller Hub datasheet

This module checks the following:

SMBUS_HCFG.SPD_WD

The module returns the following results:

PASSED : SMBUS_HCFG.SPD_WD is set

FAILED : SMBUS_HCFG.SPD_WD is not set and SPDs were detected

INFORMATION: SMBUS_HCFG.SPD_WD is not set, but no SPDs were detected

Hardware registers used:

SMBUS_HCFG

Usage:

chipsec_main -m common.spd_wd

Examples:
>>> chipsec_main.py -m common.spd_wd

Note

This module will only run if:

  • SMBUS device is enabled

  • SMBUS_HCFG.SPD_WD is defined for the platform