Hi Karim Thanks for cracking at it through all the iterations. On Wed, Jan 31, 2018 at 08:37:44PM +0100, KarimAllah Ahmed wrote: > From: Ashok Raj <ashok.raj@xxxxxxxxx> > > The Indirect Branch Predictor Barrier (IBPB) is an indirect branch > control mechanism. It keeps earlier branches from influencing > later ones. It might be better to split this patch into two parts. - Just the place where we do IBPB barrier for VMX/SVM - The msr get/set handling to comprehend guest, nested support etc. The first part should be trivial so it can possibly make it into tip/x86/pti branch sooner, while we rework the feedback to address this completely. Cheers, Ashok