From coreboot
Revision as of 22:57, 30 June 2012 by XVilka (talk | contribs) (svn -> git fixes)
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msrtool is a small utility that dumps chipset-specific MSR registers.

Supported OSes and chipsets


  • Linux with /dev/cpu/*/msr
  • Darwin / OS X with DirectIO
  • FreeBSD with /dev/cpuctl*


  • AMD Geode GX2
  • AMD Geode LX
  • AMD Geode CS5536
  • AMD K8
  • Intel Pentium III and later


Manual installation

$ git clone
$ cd coreboot/util/msrtool
$ ./configure
$ make
$ sudo make install

You can browse the msrtool source code using the gitweb interface.


Show basic information:

$ msrtool

Please see msrtool -h for information on various other options.

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