Welcome to libmsr, a friendly (well, friendlier) interface to several of the model-specific registers in Intel processors.

version 0.1.17

Installation is simple. You will need cmake version 2.8 or higher.

mkdir BUILD && cd BUILD
cmake .. -DCMAKE_INSTALL_PREFIX=/path/to/install
make
make install

This software depends on the files /dev/cpu/*/msr being present with r/w permissions. Recent kernels require additional capabilities. We have found it easier to use our own msr-safe kernel module, but running as root (or going through the bother of additing the capabilities to the binaries) are other options.

Call msr_init() before using any of the APIs.

For sample code, see libmsr_test.c in the test folder.

Our most up-to-date documentation for libmsr use is the pdf files in the documentation folder, however there is some additional useful information in API as well.

Please feel free to contact the authors with questions and suggestions.

• Scott Walker ([email protected])
• Kathleen Shoga ([email protected])
• Barry Rountreee ([email protected])
• Lauren Morita ([email protected])