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[23.128.96.18]) by mx.google.com with ESMTP id gg26si1856874ejb.128.2020.07.15.13.02.46; Wed, 15 Jul 2020 13:03:11 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726878AbgGOUC3 (ORCPT + 99 others); Wed, 15 Jul 2020 16:02:29 -0400 Received: from mga05.intel.com ([192.55.52.43]:31992 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726491AbgGOUC2 (ORCPT ); Wed, 15 Jul 2020 16:02:28 -0400 IronPort-SDR: 5xGg3eW7aW/Ri6YbLmzdSOi0SdaLL5M/8ExcyEjpA9JQcAZhGJugB7yRf3HrFdibf37bjCFZ1C znqobmCwII8A== X-IronPort-AV: E=McAfee;i="6000,8403,9683"; a="234115543" X-IronPort-AV: E=Sophos;i="5.75,356,1589266800"; d="scan'208";a="234115543" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Jul 2020 13:02:28 -0700 IronPort-SDR: MkLInbnvcc7MzlFRLFR80N9TF9i4byCNeQBBRI8k0z1B4lJxv76xTM1XavfvVhqrC+mI3YeVsJ gxdjPuQGecwA== X-IronPort-AV: E=Sophos;i="5.75,356,1589266800"; d="scan'208";a="324931027" Received: from otcsectest.jf.intel.com (HELO 760745902f30) ([10.54.30.81]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Jul 2020 13:02:27 -0700 Date: Wed, 15 Jul 2020 19:58:48 +0000 From: "Andersen, John" To: Sean Christopherson Cc: Andy Lutomirski , Arvind Sankar , Dave Hansen , Paolo Bonzini , Jonathan Corbet , Thomas Gleixner , Ingo Molnar , Borislav Petkov , X86 ML , "H. Peter Anvin" , Shuah Khan , Liran Alon , Andrew Jones , Rick Edgecombe , Kristen Carlson Accardi , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , Mauro Carvalho Chehab , Greg KH , "Paul E. McKenney" , Pawan Gupta , Juergen Gross , Mike Kravetz , Oliver Neukum , Peter Zijlstra , Fenghua Yu , reinette.chatre@intel.com, vineela.tummalapalli@intel.com, Dave Hansen , Arjan van de Ven , caoj.fnst@cn.fujitsu.com, Baoquan He , Kees Cook , Dan Williams , eric.auger@redhat.com, aaronlewis@google.com, Peter Xu , makarandsonare@google.com, "open list:DOCUMENTATION" , LKML , kvm list , "open list:KERNEL SELFTEST FRAMEWORK" , Kernel Hardening Subject: Re: [PATCH 2/4] KVM: x86: Introduce paravirt feature CR0/CR4 pinning Message-ID: <20200715195848.GE25@760745902f30> References: <20200707211244.GN20096@linux.intel.com> <19b97891-bbb0-1061-5971-549a386f7cfb@intel.com> <31eb5b00-9e2a-aa10-0f20-4abc3cd35112@redhat.com> <20200709154412.GA25@64c96d3be97b> <6040c3b3-cac9-cc0e-f0de-baaa274920a2@intel.com> <20200714053930.GC25@760745902f30> <20200715044129.GA11248@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200715044129.GA11248@linux.intel.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 14, 2020 at 09:41:29PM -0700, Sean Christopherson wrote: > On Tue, Jul 14, 2020 at 05:39:30AM +0000, Andersen, John wrote: > > With regards to FSGSBASE, are we open to validating and adding that to the > > DEFAULT set as a part of a separate patchset? This patchset is focused on > > replicating the functionality we already have natively. > > Kees added FSGSBASE pinning in commit a13b9d0b97211 ("x86/cpu: Use pinning > mask for CR4 bits needing to be 0"), so I believe it's a done deal already. Ah my bad. Thanks, I'll look into it.