Obtaining Z530 CPU Temperature
rtmistler - March 17, 2011
What would be required to support reading the CPU temperature in a MVL6.0 Z530 distribution?
Are there kernel configuration option requirements?
Are there modules that need to be included in the RFS?
Does anything need to be started in the init to support this capability?
CONFIG_SENSORS_CORETEMP
Add CONFIG_SENSORS_CORETEMP and you should get the temperature reading under /sys/class/hwmon/temp1*. The processor contains an on die Digital Thermal Sensor (DTS) that is read using an MSR IA32_THERM_STATUS[16:22]. Refer to the Intel® 64 and IA-32 Architectures Software Development Manual http://www.intel.com/Assets/PDF/manual/253668.pdf chapter 13.4.5.2 Reading the Digital Sensor