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 Received: from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 79B46EBFD0B for ; Mon, 13 Apr 2026 07:30:02 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wCBjl-0005E6-0E; Mon, 13 Apr 2026 03:29:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wCBjh-0005C0-Lv for qemu-devel@nongnu.org; Mon, 13 Apr 2026 03:29:33 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wCBjg-0002t7-6T for qemu-devel@nongnu.org; Mon, 13 Apr 2026 03:29:33 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1776065371; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=qmQOShNP/QeFQ+an/+WZQS6PcHMVutQEjoheAnkTkRE=; b=TnCfDxPi03kRQc9qXzeZEFcSDXHIhnRfSWR6ZIrN8KxFrXP7ZgflLwMXHdGhh7jxIQ2VOI ADgF0mYni/WfxRCj7lrNWJQSyLRTedbuh8UYvDZUREgcb8pq4CLCje/Uk504GNYzxcRluk 50NNSU9wCFknh4aB9CofL77+75AH/+o= Received: from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-166-vbmSYp64Pk-h9tw86bLomA-1; Mon, 13 Apr 2026 03:29:29 -0400 X-MC-Unique: vbmSYp64Pk-h9tw86bLomA-1 X-Mimecast-MFC-AGG-ID: vbmSYp64Pk-h9tw86bLomA_1776065368 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 69B431956095; Mon, 13 Apr 2026 07:29:28 +0000 (UTC) Received: from blackfin.pond.sub.org (unknown [10.44.22.4]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id E164519560AB; Mon, 13 Apr 2026 07:29:26 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 6B0FA21E6A28; Mon, 13 Apr 2026 09:29:24 +0200 (CEST) From: Markus Armbruster To: Daniel P. =?utf-8?Q?Berrang=C3=A9?= Cc: Helge Deller , qemu-devel@nongnu.org, Richard Henderson , Michael Tokarev Subject: Re: [PATCH v3] Allow building qemu tools on 32-bit hosts In-Reply-To: ("Daniel P. =?utf-8?Q?Berrang?= =?utf-8?Q?=C3=A9=22's?= message of "Tue, 7 Apr 2026 11:00:01 +0100") References: Date: Mon, 13 Apr 2026 09:29:24 +0200 Message-ID: <87qzojgvxn.fsf@pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Received-SPF: pass client-ip=170.10.133.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 7 X-Spam_score: 0.7 X-Spam_bar: / X-Spam_report: (0.7 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.54, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=0.001, RCVD_IN_SBL_CSS=3.335, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Daniel P. Berrang=C3=A9 writes: > On Sun, Apr 05, 2026 at 12:40:16AM +0200, Helge Deller wrote: >> Qemu's tools like qemu-img are often needed on 32-bit platforms, >> although the actual qemu emulators have been discontinued on 32-bit. > > IMHO, the thought behind disabling 32-bit builds was not making > a statement about whether the code was useful on 32-bit platforms. > Users of 32-bit platforms will naturally always want to have as > much as possible available on their platform. > > Rather it was that 32-bit platforms were no longer considered > important as targets by QEMU maintainers. The goal is thus to > reduce the set of targets that maintainers have to think about. > > Thus the commit message needs to be justifying why 32-bit platforms > should still be treated as a target. > > In terms of the impact on QEMU maintainers / subsystems we see > > * QEMU guest agent > > =3D> util/, qapi/, qobject/, qom/, qga/ > > Total about 300 C files > > * Adding in tools on top we also get > > =3D> block/, chardev/, crypto/, io/, authz/, storage-daemon/ > > Total about 700 C files > > > I'll support the build of QEMU guest agent on 32-bit, as we were > clear that we wanted to continue supporting 32-bit guests in > general. > > I'm not in favour of re-introducing 32-bit support for anything > else. Neither am I.