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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,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 C9CE2C433E0 for ; Tue, 26 May 2020 11:55:30 +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 981E920663 for ; Tue, 26 May 2020 11:55:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lucina.net header.i=@lucina.net header.b="jLgJZgWP" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 981E920663 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=lucina.net 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 1jdYAU-0001hd-Au; Tue, 26 May 2020 11:54:50 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1jdYAT-0001hX-7k for xen-devel@lists.xenproject.org; Tue, 26 May 2020 11:54:49 +0000 X-Inumbo-ID: b27c9a4a-9f47-11ea-9947-bc764e2007e4 Received: from smtp.lucina.net (unknown [62.176.169.44]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id b27c9a4a-9f47-11ea-9947-bc764e2007e4; Tue, 26 May 2020 11:54:48 +0000 (UTC) Received: from nodbug.lucina.net (78-141-76-187.dynamic.orange.sk [78.141.76.187]) by smtp.lucina.net (Postfix) with ESMTPSA id 0D2D2122804; Tue, 26 May 2020 13:54:47 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=lucina.net; s=dkim-201811; t=1590494087; bh=QFPqT+wMGFf0hsPuefeEdPUGLpxgodt6U7aKLQIqJtQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=jLgJZgWPv9JNi73tAsS754tnBDH0rRz6wRinU0Se2qyr7pgjUxvs8OLsHRS95HevT hppI8NMQngUX7awqmCeuZu7eIS9OIgiMMh0EAy+svRk/JJYUc7XqKewSuJS87XzXXZ KjMhT+GIrF9yQG9gIGyiNHs5jJLqcwMR/nuWKxZcN56HqUIgCJNimNVYLHsFp9WTi4 d1D+pmC/FD0kDs4zNY5VApzb72hGEImzYhUD8eD1ihgh2f2/53nFfCoyPEl8ebJ7tv XUtacmkeS9hPhjLIc5Cym0+j8IP1ZzRVKm0qvf/Z1edMa+rSw8BVe7NJTINUZ/blV8 w7IBUPKcFkvIg== Received: by nodbug.lucina.net (Postfix, from userid 1000) id DF22D268436E; Tue, 26 May 2020 13:54:46 +0200 (CEST) Date: Tue, 26 May 2020 13:54:46 +0200 From: Martin Lucina To: Andrew Cooper Subject: Mail-Followup-To (was Re: Xen PVH domU start-of-day VCPU state) Message-ID: <20200526115446.GA24386@nodbug.lucina.net> Mail-Followup-To: Andrew Cooper , xen-devel@lists.xenproject.org, mirageos-devel@lists.xenproject.org References: <20200525160401.GA3091@nodbug.lucina.net> <6a22e477-c9e7-f0d7-6cb1-615137a778be@citrix.com> <20200526085221.GB5942@nodbug.lucina.net> <36363b39-c8c1-82bf-af37-f0d917844bb4@citrix.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <36363b39-c8c1-82bf-af37-f0d917844bb4@citrix.com> User-Agent: Mutt/1.10.1 (2018-07-13) 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: xen-devel@lists.xenproject.org, mirageos-devel@lists.xenproject.org Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" On Tuesday, 26.05.2020 at 11:58, Andrew Cooper wrote: > On 26/05/2020 09:52, Martin Lucina wrote: > > On Monday, 25.05.2020 at 17:59, Andrew Cooper wrote: > >> On 25/05/2020 17:42, Jürgen Groß wrote: > >>> You need to setup virtual addressing and enable 64 bit mode before using > >>> 64-bit GDT. > >>> > >>> See Mini-OS source arch/x86/x86_hvm.S > >> Or > >> https://xenbits.xen.org/gitweb/?p=people/andrewcoop/xen-test-framework.git;a=blob;f=arch/x86/hvm/head.S;h=f7dc72b58ab9ec68538f0087969ab6f72d181d80;hb=HEAD > >> > >> But yes - Juergen is correct.  Until you have enabled long mode, lgdt > >> will only load the bottom 32 bits of GDTR.base. > > Ah, I missed Jurgen's and your reply here. > > So the mailing list is doing something evil and setting: > > Mail-Followup-To: Andrew Cooper , >     =?iso-8859-1?Q?J=FCrgen_Gro=DF?= , >     xen-devel@lists.xenproject.org, mirageos-devel@lists.xenproject.org, >     anil@recoil.org, dave@recoil.org > > which causes normal replies to cut you out. I _think_ I've fixed this, it was due to ancient Mutt configuration (using xensource.com / xen.org !?) for xen-devel at my end. Dropped the other direct Ccs to lessen the noise, but I have no real way of testing without replying, so here goes. -mato