From nobody Sat Apr 11 19:55:06 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=quarantine dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1775123601; cv=none; d=zohomail.com; s=zohoarc; b=EbZwGQMygAqW+d+TX8CjfVAmhD4OadiMf2NwJbUjyS47KoUFYQoQ7KtaYZ2ucrmNlzWgq9RYJJeYczpHSCM/n4rgxukYS4Y4PbGsIN70orB3WU8VT8ZfRlQN65Viwap0Q6jedexbE+74UdMKH63ig9ma6Ixyeni/qznj/1+FelA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1775123601; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=1XTWrPgq4sCwgSTOwpsTMMw/F62QUQmlEI3gOkYR/ZE=; b=IOKtvyweRJp4nXxRtegowNKkx/fRrFY67GIctMAt6awGXQEw998uVsu864UPzsyZJ+s/pkgATpsa2WfJuMQRotLZMFMIuFmMribhC/fcDlZYEoUjX542SZ/2PkvbM0+OoUYNlSCziMQJ4kiONYnNDMGJ17lJhMsKlYX+KkhnVSM= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1775123601987718.5025285608888; Thu, 2 Apr 2026 02:53:21 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1w8Ej1-0007GD-5I; Thu, 02 Apr 2026 05:52:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1w8Eiy-0007Dc-Ca for qemu-devel@nongnu.org; Thu, 02 Apr 2026 05:52:28 -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 1w8Eiw-0008Tg-Oq for qemu-devel@nongnu.org; Thu, 02 Apr 2026 05:52:28 -0400 Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-680-t3LmcyEeNnWluNdasNIvrQ-1; Thu, 02 Apr 2026 05:52:21 -0400 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (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-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id B5B85180044D; Thu, 2 Apr 2026 09:52:20 +0000 (UTC) Received: from thuth-p1g4.redhat.com (unknown [10.44.34.44]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 7C2F1196B088; Thu, 2 Apr 2026 09:52:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1775123544; 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=1XTWrPgq4sCwgSTOwpsTMMw/F62QUQmlEI3gOkYR/ZE=; b=cNtWkpbMxk3K45QhDHhC1ZtlohCsWYgVceKD8J2agfYqBvQtNPZGq+hK8sNn0/cw8Dg08U 09L8iTUHIeW7gautHFlctppnflRDvm7+XWyqWL4pILEyYHTEbTqPPBKyVgal0iCNjinTL7 /yzaBCdPvvPulhtk0Tt/LhpSZ6miVt0= X-MC-Unique: t3LmcyEeNnWluNdasNIvrQ-1 X-Mimecast-MFC-AGG-ID: t3LmcyEeNnWluNdasNIvrQ_1775123540 From: Thomas Huth To: Paolo Bonzini , qemu-devel@nongnu.org Cc: Pierrick Bouvier , "Michael S. Tsirkin" , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Zhao Liu , Thomas Huth Subject: [PATCH 10/10] docs/about/deprecated: Deprecate the qemu-system-i386 binary Date: Thu, 2 Apr 2026 11:51:32 +0200 Message-ID: <20260402095132.29245-11-thuth@redhat.com> In-Reply-To: <20260402095132.29245-1-thuth@redhat.com> References: <20260402095132.29245-1-thuth@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -6 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=-0.01, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=1, RCVD_IN_VALIDITY_RPBL_BLOCKED=1, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1775123602945158500 From: Thomas Huth Aside from not supporting KVM on 32-bit hosts, the qemu-system-x86_64 binary is a proper superset of the qemu-system-i386 binary. And with the 32-bit x86 host support being removed now, it is possible to deprecate the qemu-system-i386 binary now, too. With regards to 32-bit KVM support in the x86 Linux kernel, the developers confirmed that they do not need a recent qemu-system-i386 binary here: https://lore.kernel.org/kvm/Y%2ffkTs5ajFy0hP1U@google.com/ Reviewed-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Thomas Huth --- docs/about/deprecated.rst | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index a6d6a713265..2de51337d75 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -301,6 +301,25 @@ machine must ensure that they're setting the ``spike``= machine in the command line (``-M spike``). =20 =20 +System emulator binaries +------------------------ + +``qemu-system-i386`` binary (since 11.1) +'''''''''''''''''''''''''''''''''''''''' + +The ``qemu-system-i386`` binary was mainly useful for running with KVM +on 32-bit x86 hosts, but most Linux distributions already removed their +support for 32-bit x86 kernels, so hardly anybody still needs this. The +``qemu-system-x86_64`` binary is a proper superset and can be used to +run 32-bit guests by selecting a 32-bit CPU model, including KVM support +on x86_64 hosts. Thus users are recommended to reconfigure their systems +to use the ``qemu-system-x86_64`` binary instead. If a 32-bit CPU guest +environment should be enforced, you can switch off the "long mode" CPU +flag with ``-cpu max,lm=3Doff``, or rename/symlink ``qemu-system-x86_64`` +to ``qemu-system-i386`` -- QEMU will then run with the 64-bit extensions +disabled. + + Backend options --------------- =20 --=20 2.53.0