| The x86 kernel supports tracing most MSR (Model Specific Register) accesses. |
| To see the definition of the MSRs on Intel systems please see the SDM |
| at https://www.intel.com/sdm (Volume 3) |
| /sys/kernel/debug/tracing/events/msr/ |
| - failed: 1 if the access failed, otherwise 0 |
| - failed: 1 if the access failed, otherwise 0 |
| The trace data can be post processed with the postprocess/decode_msr.py script:: |
| cat /sys/kernel/debug/tracing/trace | decode_msr.py /usr/src/linux/include/asm/msr-index.h |
| to add symbolic MSR names. |