lkml.org 
[lkml]   [2018]   [Feb]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH v5 2/5] KVM: x86: Add IBPB support
    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@intel.com>
    >
    > 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

    \
     
     \ /
      Last update: 2018-02-01 18:00    [W:2.543 / U:0.220 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site