msr-tools are utilities to access MSRs and CPU ID directly. Accessing any MSR or CPU ID with a simple console command is quite useful, especially when working on CPU related issues.
This project is composed of three different user space console applications.
- rdmsr – read MSR from any CPU or all CPUs
- wrmsr – write values to MSR on any CPU or all CPUs
- cpuid – show identification and feature information of any CPU
This project is released under GPL v2 or later.