Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752164AbeAJR2s (ORCPT + 1 other); Wed, 10 Jan 2018 12:28:48 -0500 Received: from mail.skyhub.de ([5.9.137.197]:43846 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751062AbeAJR2r (ORCPT ); Wed, 10 Jan 2018 12:28:47 -0500 Date: Wed, 10 Jan 2018 18:28:34 +0100 From: Borislav Petkov To: Willy Tarreau Cc: Andy Lutomirski , LKML , X86 ML , Brian Gerst , Dave Hansen , Ingo Molnar , Linus Torvalds , Peter Zijlstra , Thomas Gleixner , Josh Poimboeuf , "H. Peter Anvin" , Kees Cook Subject: Re: [RFC PATCH v2 2/6] x86/arch_prctl: add ARCH_GET_NOPTI and ARCH_SET_NOPTI to enable/disable PTI Message-ID: <20180110172833.srfx257iwwckvkfj@pd.tnic> References: <20180109212940.ffvqb6wmehmxre4i@pd.tnic> <20180109213227.GA13282@1wt.eu> <20180109214602.k7cuxwikg6xshztu@pd.tnic> <20180109220605.GE13282@1wt.eu> <20180109222036.6h7jjyaayusn4yb5@pd.tnic> <20180109224009.GA13326@1wt.eu> <20180110144239.cm5t7j6s7akkpked@pd.tnic> <20180110153946.GB14178@1wt.eu> <20180110160922.c26iaeley5nh3xk6@pd.tnic> <20180110161929.GA14347@1wt.eu> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20180110161929.GA14347@1wt.eu> User-Agent: NeoMutt/20170609 (1.8.3) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: On Wed, Jan 10, 2018 at 05:19:29PM +0100, Willy Tarreau wrote: > Well, indeed. It will never be 100% equivalent to pti=off however since > the alternative code will remain in place, but why not. Or maybe we have > a way to change the alternatives at run time by changing a sysctl, Not yet. We need to think about it. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.