Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751594AbeAPSOV (ORCPT + 1 other); Tue, 16 Jan 2018 13:14:21 -0500 Received: from mga05.intel.com ([192.55.52.43]:8301 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750890AbeAPSOU (ORCPT ); Tue, 16 Jan 2018 13:14:20 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,369,1511856000"; d="scan'208";a="193813334" Subject: Re: [RFC PATCH 00/16] PTI support for x86-32 To: Joerg Roedel , Thomas Gleixner , Ingo Molnar , "H . Peter Anvin" References: <1516120619-1159-1-git-send-email-joro@8bytes.org> Cc: x86@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Linus Torvalds , Andy Lutomirski , Josh Poimboeuf , Juergen Gross , Peter Zijlstra , Borislav Petkov , Jiri Kosina , Boris Ostrovsky , Brian Gerst , David Laight , Denys Vlasenko , Eduardo Valentin , Greg KH , Will Deacon , aliguori@amazon.com, daniel.gruss@iaik.tugraz.at, hughd@google.com, keescook@google.com, Andrea Arcangeli , Waiman Long , jroedel@suse.de From: Dave Hansen Message-ID: <1c7da3dc-279a-fa07-247b-7596cf758a55@intel.com> Date: Tue, 16 Jan 2018 10:14:19 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.0 MIME-Version: 1.0 In-Reply-To: <1516120619-1159-1-git-send-email-joro@8bytes.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: Joerg, Very cool!. I really appreciate you putting this together. I don't see any real showstoppers or things that I think will *break* 64-bit. I just hope that we can merge this _slowly_ in case it breaks 64-bit along the way. I didn't look at the assembly in too much detail.