From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 365D4C54FCB for ; Thu, 23 Apr 2020 15:51:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 21EBF20CC7 for ; Thu, 23 Apr 2020 15:51:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729319AbgDWPvL (ORCPT ); Thu, 23 Apr 2020 11:51:11 -0400 Received: from mga09.intel.com ([134.134.136.24]:47577 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729212AbgDWPvL (ORCPT ); Thu, 23 Apr 2020 11:51:11 -0400 IronPort-SDR: QJsMvB0BMJQIHoPzevHn7Irh3dNDocrfhUlkDi5K5xRMwTAyF0c8E0EPhOHjYlrKQz3b7zWJks M4CDhaz1EzAQ== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Apr 2020 08:51:10 -0700 IronPort-SDR: B+irv8OhOSdHt7XQDod4Mdv7W3npq8mQj6RTSAXE5lQXWciQE/vNqNB+YyyQq6GKZi3vzC5O/4 7j6vMjK4igXQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,307,1583222400"; d="scan'208";a="402957569" Received: from sjchrist-coffee.jf.intel.com (HELO linux.intel.com) ([10.54.74.202]) by orsmga004.jf.intel.com with ESMTP; 23 Apr 2020 08:51:10 -0700 Date: Thu, 23 Apr 2020 08:51:09 -0700 From: Sean Christopherson To: Yang Weijiang Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, pbonzini@redhat.com, jmattson@google.com, yu.c.zhang@linux.intel.com Subject: Re: [PATCH v11 0/9] Introduce support for guest CET feature Message-ID: <20200423155109.GD17824@linux.intel.com> References: <20200326081847.5870-1-weijiang.yang@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200326081847.5870-1-weijiang.yang@intel.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Thu, Mar 26, 2020 at 04:18:37PM +0800, Yang Weijiang wrote: > Control-flow Enforcement Technology (CET) provides protection against > Return/Jump-Oriented Programming (ROP/JOP) attack. It includes two > sub-features: Shadow Stack (SHSTK) and Indirect Branch Tracking (IBT). > > KVM needs to update to enable guest CET feature. > This patchset implements CET related CPUID/XSAVES enumeration, MSRs > and vmentry/vmexit configuration etc.so that guest kernel can setup CET > runtime infrastructure based on them. Some CET MSRs and related feature > flags used reference the definitions in kernel patchset. > > CET kernel patches are here: > https://lkml.org/lkml/2020/2/5/593 > https://lkml.org/lkml/2020/2/5/604 lkml.org is pretty worthless for this sort of thing, and lkml.kernel.org is the preferred link method in general. The syntax is https://lkml.kernel.org/r/ e.g. https://lkml.kernel.org/r/20200205181935.3712-1-yu-cheng.yu@intel.com Note, that will redirect to lore.kernel.org, but the above format is preferred because it isn't dependent on binning the thread to a specific mailing list. Anyways, kernel.org provides a link to download the entire thread in mbox format, which allows reviewers to get the prerequisite series without much fuss. https://lore.kernel.org/linux-api/20200205181935.3712-1-yu-cheng.yu@intel.com/t.mbox.gz