From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <SRS0=ZTvs=4H=vger.kernel.org=linux-kernel-owner@kernel.org>
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 7B680C34047
	for <linux-kernel@archiver.kernel.org>; Wed, 19 Feb 2020 10:42:18 +0000 (UTC)
Received: from vger.kernel.org (vger.kernel.org [209.132.180.67])
	by mail.kernel.org (Postfix) with ESMTP id 5C5F821D56
	for <linux-kernel@archiver.kernel.org>; Wed, 19 Feb 2020 10:42:18 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1726701AbgBSKmR (ORCPT
        <rfc822;linux-kernel@archiver.kernel.org>);
        Wed, 19 Feb 2020 05:42:17 -0500
Received: from 8bytes.org ([81.169.241.247]:54872 "EHLO theia.8bytes.org"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S1726469AbgBSKmQ (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
        Wed, 19 Feb 2020 05:42:16 -0500
Received: by theia.8bytes.org (Postfix, from userid 1000)
        id ED39936A; Wed, 19 Feb 2020 11:42:14 +0100 (CET)
Date:   Wed, 19 Feb 2020 11:42:13 +0100
From:   Joerg Roedel <joro@8bytes.org>
To:     =?iso-8859-1?Q?J=FCrgen_Gro=DF?= <jgross@suse.com>
Cc:     Andy Lutomirski <luto@amacapital.net>,
        Andy Lutomirski <luto@kernel.org>, X86 ML <x86@kernel.org>,
        "H. Peter Anvin" <hpa@zytor.com>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Thomas Hellstrom <thellstrom@vmware.com>,
        Jiri Slaby <jslaby@suse.cz>,
        Dan Williams <dan.j.williams@intel.com>,
        Tom Lendacky <Thomas.Lendacky@amd.com>,
        Kees Cook <keescook@chromium.org>,
        LKML <linux-kernel@vger.kernel.org>,
        kvm list <kvm@vger.kernel.org>,
        Linux Virtualization <virtualization@lists.linux-foundation.org>,
        Joerg Roedel <jroedel@suse.de>
Subject: Re: [PATCH 23/62] x86/idt: Move IDT to data segment
Message-ID: <20200219104213.GJ22063@8bytes.org>
References: <20200212115516.GE20066@8bytes.org>
 <EEAC8672-C98F-45D0-9F2D-0802516C3908@amacapital.net>
 <879ace44-cee3-98aa-0dff-549b69355096@suse.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <879ace44-cee3-98aa-0dff-549b69355096@suse.com>
User-Agent: Mutt/1.10.1 (2018-07-13)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

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?

Regards,

	Joerg