This driver implements the Intel Processor Trace functionality in Intel Skylake architecture for Microsoft Windows.
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
sc create intelpt BinPath=%cd%\WindowsPtDriver\x64\Release\WindowsPtDriver.sys
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