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=-2.2 required=3.0 tests=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 CD2A3C3404D for ; Wed, 19 Feb 2020 10:47:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AEE7121D56 for ; Wed, 19 Feb 2020 10:47:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726691AbgBSKri (ORCPT ); Wed, 19 Feb 2020 05:47:38 -0500 Received: from mx2.suse.de ([195.135.220.15]:41128 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726484AbgBSKri (ORCPT ); Wed, 19 Feb 2020 05:47:38 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 3D5C4ACE8; Wed, 19 Feb 2020 10:47:36 +0000 (UTC) Subject: Re: [PATCH 23/62] x86/idt: Move IDT to data segment To: Joerg Roedel Cc: Andy Lutomirski , Andy Lutomirski , X86 ML , "H. Peter Anvin" , Dave Hansen , Peter Zijlstra , Thomas Hellstrom , Jiri Slaby , Dan Williams , Tom Lendacky , Kees Cook , LKML , kvm list , Linux Virtualization , Joerg Roedel References: <20200212115516.GE20066@8bytes.org> <879ace44-cee3-98aa-0dff-549b69355096@suse.com> <20200219104213.GJ22063@8bytes.org> From: =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= Message-ID: <64f1fa87-17c2-928b-06f5-17b6771fc753@suse.com> Date: Wed, 19 Feb 2020 11:47:33 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <20200219104213.GJ22063@8bytes.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On 19.02.20 11:42, Joerg Roedel wrote: > Hi Jürgen, > > On Wed, Feb 12, 2020 at 05:28:21PM +0100, Jürgen Groß wrote: >> Xen-PV is clearing BSS as the very first action. > > In the kernel image? Or in the ELF loader before jumping to the kernel > image? In the kernel image. See arch/x86/xen/xen-head.S - startup_xen is the entry point of the kernel. Juergen