From patchwork Fri Jul 26 20:32:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Cooper X-Patchwork-Id: 11061801 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 06F4B1398 for ; Fri, 26 Jul 2019 20:33:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EC61D28B4B for ; Fri, 26 Jul 2019 20:33:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E047128B56; Fri, 26 Jul 2019 20:33:51 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 8058928B4B for ; Fri, 26 Jul 2019 20:33:51 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hr6tF-0007S2-9A; Fri, 26 Jul 2019 20:32:33 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hr6tD-0007Ri-9t for xen-devel@lists.xenproject.org; Fri, 26 Jul 2019 20:32:31 +0000 X-Inumbo-ID: 7b1ecb16-afe4-11e9-82ba-4318581a012c Received: from esa2.hc3370-68.iphmx.com (unknown [216.71.145.153]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 7b1ecb16-afe4-11e9-82ba-4318581a012c; Fri, 26 Jul 2019 20:32:27 +0000 (UTC) Authentication-Results: esa2.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none; spf=None smtp.pra=andrew.cooper3@citrix.com; spf=Pass smtp.mailfrom=Andrew.Cooper3@citrix.com; spf=None smtp.helo=postmaster@mail.citrix.com Received-SPF: None (esa2.hc3370-68.iphmx.com: no sender authenticity information available from domain of andrew.cooper3@citrix.com) identity=pra; client-ip=162.221.158.21; receiver=esa2.hc3370-68.iphmx.com; envelope-from="Andrew.Cooper3@citrix.com"; x-sender="andrew.cooper3@citrix.com"; x-conformance=sidf_compatible Received-SPF: Pass (esa2.hc3370-68.iphmx.com: domain of Andrew.Cooper3@citrix.com designates 162.221.158.21 as permitted sender) identity=mailfrom; client-ip=162.221.158.21; receiver=esa2.hc3370-68.iphmx.com; envelope-from="Andrew.Cooper3@citrix.com"; x-sender="Andrew.Cooper3@citrix.com"; x-conformance=sidf_compatible; x-record-type="v=spf1"; x-record-text="v=spf1 ip4:209.167.231.154 ip4:178.63.86.133 ip4:195.66.111.40/30 ip4:85.115.9.32/28 ip4:199.102.83.4 ip4:192.28.146.160 ip4:192.28.146.107 ip4:216.52.6.88 ip4:216.52.6.188 ip4:162.221.158.21 ip4:162.221.156.83 ~all" Received-SPF: None (esa2.hc3370-68.iphmx.com: no sender authenticity information available from domain of postmaster@mail.citrix.com) identity=helo; client-ip=162.221.158.21; receiver=esa2.hc3370-68.iphmx.com; envelope-from="Andrew.Cooper3@citrix.com"; x-sender="postmaster@mail.citrix.com"; x-conformance=sidf_compatible IronPort-SDR: 2qGDk3Fcpv3iFgZlTq1SQxCz+ePirgQ85xL1K86CoKu8yD11XfOUNatRfJVfiA8XL/gFUaFzqa 5UIEpThnJe+kmOtd/TyG3IHy4zy1VmoOg8w6hSYxe/GJZKSKw9oVQaLfIu62jhe5ULWPCkaqZA A5zX2sscGzOvs81GbaoFWPfMTstr7VPW3IzhYe+ocbJZrUaWmhhV/La+dWqwNTvO5uFXRlFoM8 GD65036jO4osQaFUrLsOzcHIYF2sYuGAqG+x5UnZh1VyoBBv4ic/PGucH+IoIApBA8Z/kNr5MO 6Io= X-SBRS: 2.7 X-MesageID: 3492871 X-Ironport-Server: esa2.hc3370-68.iphmx.com X-Remote-IP: 162.221.158.21 X-Policy: $RELAYED X-IronPort-AV: E=Sophos;i="5.64,312,1559534400"; d="scan'208";a="3492871" From: Andrew Cooper To: Xen-devel Date: Fri, 26 Jul 2019 21:32:20 +0100 Message-ID: <20190726203222.4833-1-andrew.cooper3@citrix.com> X-Mailer: git-send-email 2.11.0 MIME-Version: 1.0 Subject: [Xen-devel] [PATCH v2 0/2] x86/xpti: Don't leak TSS-adjacent percpu data via Meltdown X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Stefano Stabellini , Wei Liu , Andrew Cooper , Julien Grall , Jan Beulich , Volodymyr Babchuk , =?utf-8?q?Roger_Pau_Monn?= =?utf-8?q?=C3=A9?= Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP Reworked to allow DEFINE_PER_CPU_PAGE_ALIGNED() to specify the __aligned(PAGE_SIZE) itself. Andrew Cooper (2): xen/link: Introduce .bss.percpu.page_aligned x86/xpti: Don't leak TSS-adjacent percpu data via Meltdown xen/arch/arm/xen.lds.S | 5 +++-- xen/arch/x86/setup.c | 3 --- xen/arch/x86/traps.c | 6 ++++++ xen/arch/x86/xen.lds.S | 7 +++++-- xen/include/asm-arm/percpu.h | 6 ++---- xen/include/asm-x86/percpu.h | 6 ++---- xen/include/asm-x86/processor.h | 4 ++-- xen/include/xen/percpu.h | 10 ++++++++-- 8 files changed, 28 insertions(+), 19 deletions(-)