Re: [PATCH V1 2/3] perf/x86/intel/bm.c: Add Intel Branch Monitoring support

2017-11-13 Thread Megha Dey
On Mon, 2017-11-13 at 21:25 +0100, Thomas Gleixner wrote: > On Mon, 13 Nov 2017, Dey, Megha wrote: > > >-Original Message- > > >From: Peter Zijlstra [mailto:pet...@infradead.org] > > >Sent: Monday, November 13, 2017 1:00 AM > > >To: Megha Dey > > >Cc:

RE: [PATCH V1 2/3] perf/x86/intel/bm.c: Add Intel Branch Monitoring support

2017-11-13 Thread Thomas Gleixner
On Mon, 13 Nov 2017, Dey, Megha wrote: > >-Original Message- > >From: Peter Zijlstra [mailto:pet...@infradead.org] > >Sent: Monday, November 13, 2017 1:00 AM > >To: Megha Dey > >Cc: x...@kernel.org; linux-ker...@vger.kernel.org; linux- Please fix your mail

RE: [PATCH V1 2/3] perf/x86/intel/bm.c: Add Intel Branch Monitoring support

2017-11-13 Thread Dey, Megha
namhy...@kernel.org; vikas.shiva...@linux.intel.com; >pombreda...@nexb.com; m...@kylehuey.com; b...@suse.de; Andrejczuk, >Grzegorz <grzegorz.andrejc...@intel.com>; Luck, Tony ><tony.l...@intel.com>; cor...@lwn.net; Shankar, Ravi V ><ravi.v.shan...@intel.com>; Dey, Megha

Re: [PATCH V1 2/3] perf/x86/intel/bm.c: Add Intel Branch Monitoring support

2017-11-13 Thread Peter Zijlstra
On Sat, Nov 11, 2017 at 01:20:05PM -0800, Megha Dey wrote: > Currently, the cannonlake family of Intel processors support the > branch monitoring feature. Intel's Branch monitoring feature is trying > to utilize heuristics to detect the occurrence of an ROP (Return > Oriented Programming) attack.

[PATCH V1 2/3] perf/x86/intel/bm.c: Add Intel Branch Monitoring support

2017-11-11 Thread Megha Dey
Currently, the cannonlake family of Intel processors support the branch monitoring feature. Intel's Branch monitoring feature is trying to utilize heuristics to detect the occurrence of an ROP (Return Oriented Programming) attack. A perf-based kernel driver has been used to monitor the occurrence