intelpt / WindowsIntelPT

This driver implements the Intel Processor Trace functionality in Intel Skylake architecture for Microsoft Windows
GNU General Public License v3.0
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Windows Intel PT Support

This driver implements the Intel Processor Trace functionality in Intel Skylake architecture for Microsoft Windows.

Overview

Intel Processor Trace is a high performance hardware supported branch tracing mechanism in Intel Skylake architecure.

Primary benefits include:

Driver Features

Build Instructions

Driver Loading Instructions

Current Limitations

All threads in a usermode process will log to a single buffer, making it difficult to determine accurate execution per-thread. This something we are working to fix.

The IOCTLs for this driver must not be called from within the traced process. The driver maps the physical memory ranges holding the trace data into the process that initialized the trace, this is unstable if mapped into the trace target. Use the included command line tool for executing traces against target processes.

Development Notes

The driver currently executes a DbgBreak() on load if a kernel debugger is attached.

TODO List

Last revision: 04/15/2018