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[209.132.180.67]) by mx.google.com with ESMTP id d63si2927978pld.450.2017.11.02.11.21.55; Thu, 02 Nov 2017 11:22:17 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@amacapital-net.20150623.gappssmtp.com header.s=20150623 header.b=abE7fXvD; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933910AbdKBST5 (ORCPT + 97 others); Thu, 2 Nov 2017 14:19:57 -0400 Received: from mail-pg0-f68.google.com ([74.125.83.68]:52868 "EHLO mail-pg0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933207AbdKBST4 (ORCPT ); Thu, 2 Nov 2017 14:19:56 -0400 Received: by mail-pg0-f68.google.com with SMTP id a192so311989pge.9 for ; Thu, 02 Nov 2017 11:19:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amacapital-net.20150623.gappssmtp.com; s=20150623; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=PgUX4x0mYocb0umn7IiB0ur3M9198TR4J2sXuKDAb1Y=; b=abE7fXvDaWBywdKaE++J20rBiwC2wOjmVD/GobjaAt1ZKumHr8fAVkD7SARlMaHpG6 3a/98Xi0xdM62XxmNJCgDmDR6OX6IHqFiGreq8BSn4ROdrQizuCv0SRbmiJOwDxDFg4Y XhevbvAhjehqAME4sp+mNbAU5scIhr+xgCtO/PO1Fse+onh0CFIUSkV6HC5VDOA9cfyU 6uN0CDTdVv9T+InETQJeakhQp1f2X2zOuWOdPppERXKArc8ApZfQ78QWi5QpSzCbFess BbcPr27wIIkS+nl4/NNAveKinuPhkZih1famZqTXaXJVLHP2z/Hw9bGcO+RY89Z7e3xn kmZQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=PgUX4x0mYocb0umn7IiB0ur3M9198TR4J2sXuKDAb1Y=; b=DyQHpo9+COuLDzgImdYr/1bNUDlqGcs4lZsVDqBQ6NPC4gFfuwKSk7CYvwOHlqIHwd 1LfAveHC+Zt1/QBMX0p6KxvEiS5Bin1sCDopOzyJoVClsRxpZeZ+7HSl+MoqM7LdQCqa phgHnvROAnX/1nT8Dz2Qhbm5c+mq9fq2ERq/BbuKUB4hnsvmils9RsEETnqswXdeUp65 9C3omfpEWXID1jg71P4nNQTFEmI5jrO9v0B4/ESa0DdRl1iQYF4LQSzFEx5G9xOhyMK3 pvHfC63MDPlNKOzCqenYaXgtp9fSw2TQUVmeGVErQq0+AglrfbQcPMIgc1b3I6H6Jtn6 YOGw== X-Gm-Message-State: AMCzsaXg/J84qcrGkRyfaEgj9XSCuotSe63O5dKaPkb+Cy0IKFWKMlQ/ uSkMbliX0isu2+/2+HyiUuMfKQ== X-Received: by 10.84.143.162 with SMTP id 31mr4078844plz.254.1509646795575; Thu, 02 Nov 2017 11:19:55 -0700 (PDT) Received: from [25.170.16.224] ([172.56.30.248]) by smtp.gmail.com with ESMTPSA id k76sm8449147pfb.37.2017.11.02.11.19.54 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 02 Nov 2017 11:19:54 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (1.0) Subject: Re: [PATCH 02/23] x86, kaiser: do not set _PAGE_USER for init_mm page tables From: Andy Lutomirski X-Mailer: iPhone Mail (15A432) In-Reply-To: Date: Thu, 2 Nov 2017 19:19:49 +0100 Cc: Thomas Gleixner , Andy Lutomirski , Linus Torvalds , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , moritz.lipp@iaik.tugraz.at, Daniel Gruss , michael.schwarz@iaik.tugraz.at, Kees Cook , Hugh Dickins , X86 ML Content-Transfer-Encoding: quoted-printable Message-Id: References: <20171031223146.6B47C861@viggo.jf.intel.com> <20171031223150.AB41C68F@viggo.jf.intel.com> To: Dave Hansen Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Nov 2, 2017, at 5:38 PM, Dave Hansen wrot= e: >=20 >> On 11/02/2017 04:33 AM, Thomas Gleixner wrote: >> So for the problem at hand, I'd suggest we disable the vsyscall stuff if >> CONFIG_KAISER=3Dy and be done with it. >=20 > Just to be clear, are we suggesting to just disable > LEGACY_VSYSCALL_NATIVE if KAISER=3Dy, and allow LEGACY_VSYSCALL_EMULATE? > Or, do we just force LEGACY_VSYSCALL_NONE=3Dy? We'd have to force NONE, and Linus won't like it.= From 1582973096871824014@xxx Thu Nov 02 16:39:46 +0000 2017 X-GM-THRID: 1582814524376334722 X-Gmail-Labels: Inbox,Category Forums,HistoricalUnread