Intel core-family temperature sensor driver


The coretemp driver provides the system with a means of reading the per-core and, when available, per-package digital temperature sensors on Intel CPUs. Currently, the coretemp driver supports Intel Core family processors after Penryn microarchitecture and Intel Atom processors starting with the Silvermont microarchitecture.

Temperature information is available to the system via the fault management architecture (FMA). The file system location and programming interface to the coretemp driver are considered Volatile, subject to change without notice, and should not be used directly. Raw temperature information can be dumped through the FMA developer utility fmtopo.


Intel Corporation, Intel 64 and IA-32 Architectures Software Developer's Manual, Volume 3 (3A, 3B, 3C & 3D): System Programming Guide.

January 10, 2020 illumos