From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EC785C433E0 for ; Wed, 15 Jul 2020 09:57:12 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C41EE206E9 for ; Wed, 15 Jul 2020 09:57:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C41EE206E9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1jve9o-0004OV-LU; Wed, 15 Jul 2020 09:56:56 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1jve9n-0004OQ-Fo for xen-devel@lists.xenproject.org; Wed, 15 Jul 2020 09:56:55 +0000 X-Inumbo-ID: 8353465e-c681-11ea-bca7-bc764e2007e4 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 8353465e-c681-11ea-bca7-bc764e2007e4; Wed, 15 Jul 2020 09:56:54 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 40A7CAF8A; Wed, 15 Jul 2020 09:56:57 +0000 (UTC) To: "xen-devel@lists.xenproject.org" From: Jan Beulich Subject: [PATCH 0/5] x86: mostly shadow related XSA-319 follow-up Message-ID: Date: Wed, 15 Jul 2020 11:56:54 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: George Dunlap , Andrew Cooper , Tim Deegan , Wei Liu , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" This in particular goes a few small steps further towards proper !HVM and !PV config handling (i.e. no carrying of unnecessary baggage). 1: x86/shadow: dirty VRAM tracking is needed for HVM only 2: x86/shadow: shadow_table[] needs only one entry for PV-only configs 3: x86/PV: drop a few misleading paging_mode_refcounts() checks 4: x86/shadow: have just a single instance of sh_set_toplevel_shadow() 5: x86/shadow: l3table[] and gl3e[] are HVM only Jan