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=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 5775BC2B9F4 for ; Thu, 17 Jun 2021 07:17:11 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 DA6C7613B9 for ; Thu, 17 Jun 2021 07:17:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DA6C7613B9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bugs.launchpad.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:54766 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ltmGy-0003RE-MG for qemu-devel@archiver.kernel.org; Thu, 17 Jun 2021 03:17:08 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57112) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ltmFg-00022V-GM for qemu-devel@nongnu.org; Thu, 17 Jun 2021 03:15:48 -0400 Received: from indium.canonical.com ([91.189.90.7]:37462) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1ltmFc-0003Sx-Ep for qemu-devel@nongnu.org; Thu, 17 Jun 2021 03:15:48 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.93 #5 (Debian)) id 1ltmFZ-0004k6-MJ for ; Thu, 17 Jun 2021 07:15:41 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id A67752E8047 for ; Thu, 17 Jun 2021 07:15:41 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Thu, 17 Jun 2021 07:09:50 -0000 From: Thomas Huth <1860914@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=Expired; importance=Undecided; assignee=None; X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: felix.von.s th-huth X-Launchpad-Bug-Reporter: felix (felix.von.s) X-Launchpad-Bug-Modifier: Thomas Huth (th-huth) References: <158004768486.19485.8886711795112517187.malonedeb@gac.canonical.com> Message-Id: <162391379022.10888.12425632028509120001.malone@soybean.canonical.com> Subject: [Bug 1860914] Re: QEMU prepends pathnames to command lines of Multiboot kernels and modules, contrary to the specification X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="ed184eb8c3e03c8a0c3f47e69a5c546619a1af7c"; Instance="production" X-Launchpad-Hash: dd00e3e0be6ff265b90b35311f4c9a212cc855cf Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-Spam_score_int: -65 X-Spam_score: -6.6 X-Spam_bar: ------ X-Spam_report: (-6.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1860914 <1860914@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This is an automated cleanup. This bug report has been moved to QEMU's new bug tracker on gitlab.com and thus gets marked as 'expired' now. Please continue with the discussion here: https://gitlab.com/qemu-project/qemu/-/issues/425 ** Changed in: qemu Status: Incomplete =3D> Expired ** Bug watch added: gitlab.com/qemu-project/qemu/-/issues #425 https://gitlab.com/qemu-project/qemu/-/issues/425 -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1860914 Title: QEMU prepends pathnames to command lines of Multiboot kernels and modules, contrary to the specification Status in QEMU: Expired Bug description: When QEMU is launched with the -kernel option to boot a Multiboot image, the command line passed in the -append option is additionally prefixed the pathname of the kernel image and a space. Likewise, module command lines passed in the -initrd option are passed with the module pathname and a space prepended. At the very least the former is contary to what is prescribed in the Multiboot specification, version 0.6.96[0], which says in =C2=A73.3: > General-purpose boot loaders should allow user a complete control on command line independently of other factors like image name. With respect to module command lines, the spec is less clear, but GNU GRUB2 (the de facto reference implementation) does not prepend pathnames to command lines of either. I haven't tested GRUB legacy, but I assume it exhibits the same behaviour. It would be strange if passing pathnames was in fact intended; bootloader pathnames are useless to the loaded kernel, which may potentially have a completely different view of the file system from the bootloader. Also, given that a kernel pathname may contain spaces, skipping it in the command line cannot be done reliably, while loading a Multiboot module from a pathname that contains spaces is outright impossible. Found in 4.2.0, but latest git master apparently behaves the same. [0]: https://www.gnu.org/software/grub/manual/multiboot/multiboot.html To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1860914/+subscriptions