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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 155D9C678D4 for ; Fri, 3 Mar 2023 09:48:48 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pY21Z-0000Fu-UJ; Fri, 03 Mar 2023 04:48:25 -0500 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 1pY21Y-0000F3-D5 for qemu-devel@nongnu.org; Fri, 03 Mar 2023 04:48:24 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pY21W-0007Rn-HX for qemu-devel@nongnu.org; Fri, 03 Mar 2023 04:48:24 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1677836901; 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=ItWIX9zRhNEcSply1kPR8eT5f45DN4cFJIRFCI59ebs=; b=KXyC8oI9HcEzE09nMKQmSKFUS6JQ07OjC0FosGuZNHnc7bOwYjVsOFOpSlJ5NBLcrlHGL1 sEhwp8QRSyn1SgGGQl9M58QIv+D7dJWQEI8iD243ki4NNAq+eZHPFPY4dloAyltbmFvY+l xr1NoAPo2meVjkTgs850MYfM5dKOYuY= Received: from mail-wr1-f70.google.com (mail-wr1-f70.google.com [209.85.221.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_128_GCM_SHA256) id us-mta-593-VYJtjclhMHC1_h1XeYlDkw-1; Fri, 03 Mar 2023 04:48:19 -0500 X-MC-Unique: VYJtjclhMHC1_h1XeYlDkw-1 Received: by mail-wr1-f70.google.com with SMTP id n4-20020a5d5984000000b002c3b562d76cso298888wri.12 for ; Fri, 03 Mar 2023 01:48:19 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:subject:from:references:cc:to :content-language:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=ItWIX9zRhNEcSply1kPR8eT5f45DN4cFJIRFCI59ebs=; b=VFSx6hrzXYQrnIWuf03DKQdZZmOA6q5uHKy5ci+LGYCfNTvNMKnmGpG5Dr6f77RI8a bWVO0fWweqttStvSPEiHpcHQgt1EY2j35xrw4v7OHtR5SHNJ04OjDp8SZEKTur0c9LCJ PLYD/z+cr1XkV0+wFGs1lbmzCCvOo9q1TA5/ZEZ+YnOE0yyc3IX/uELaZzRkxxS56VOD KJH0zmQFa25aKuA7Hsg+coFmEkDPRpzYpDmw2us3XPmfmPDRYld5Kq8/RKhy5g7IkYMn YmGxI/4BNGH4DAg0hwYEkfBC5Q8m0YH4wWNVxZs9id+OKQEVaNELyMKhjlj6plH3gVw7 wi7g== X-Gm-Message-State: AO0yUKWTN2HgyaESdBbRTuLshv53g169LwG7zQOqykXJGE3Nr4RQvEzN fubinhor6o08kGOiFLVTsAYP0STjImowP6cPOGdn+YzBfu6w8qoKYXjxH/IN41wl3gsXn8wV1Le a+//oCS4U/EtTZo4= X-Received: by 2002:a05:600c:4509:b0:3eb:29fe:7343 with SMTP id t9-20020a05600c450900b003eb29fe7343mr904169wmo.33.1677836898784; Fri, 03 Mar 2023 01:48:18 -0800 (PST) X-Google-Smtp-Source: AK7set90kOf+t50U+lkBEG3QcglfuhduO561ikJbIwTI1cvMR/JJzdn3/vk/aPcFI5eUoUJ7JyGBaQ== X-Received: by 2002:a05:600c:4509:b0:3eb:29fe:7343 with SMTP id t9-20020a05600c450900b003eb29fe7343mr904148wmo.33.1677836898529; Fri, 03 Mar 2023 01:48:18 -0800 (PST) Received: from [192.168.0.2] (ip-109-43-176-203.web.vodafone.de. [109.43.176.203]) by smtp.gmail.com with ESMTPSA id l26-20020a05600c1d1a00b003e20970175dsm6271925wms.32.2023.03.03.01.48.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 03 Mar 2023 01:48:18 -0800 (PST) Message-ID: <6c1f0d05-924e-854e-0175-5e345945e086@redhat.com> Date: Fri, 3 Mar 2023 10:48:16 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.13.0 Content-Language: en-US To: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , qemu-devel@nongnu.org, Peter Maydell , Daniel Berrange , Paolo Bonzini Cc: Markus Armbruster , =?UTF-8?Q?Alex_Benn=c3=a9e?= , qemu-arm@nongnu.org, Maxim Levitsky , libvir-list@redhat.com, Richard Henderson , xen-devel@lists.xenproject.org, Reinoud Zandijk , Michael Tokarev , John Paul Adrian Glaubitz , Helge Deller References: <20230302163106.465559-1-thuth@redhat.com> <4bed38c3-ab4f-cd32-05a4-afa090ad8b9a@linaro.org> From: Thomas Huth Subject: Re: [PATCH v2 0/6] Deprecate support for 32-bit x86 and arm hosts In-Reply-To: <4bed38c3-ab4f-cd32-05a4-afa090ad8b9a@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=170.10.129.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-0.092, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: 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 On 02/03/2023 23.07, Philippe Mathieu-Daudé wrote: > On 2/3/23 17:31, Thomas Huth wrote: >> We're struggling quite badly with our CI minutes on the shared >> gitlab runners, so we urgently need to think of ways to cut down >> our supported build and target environments. qemu-system-i386 and >> qemu-system-arm are not really required anymore, since nobody uses >> KVM on the corresponding systems for production anymore, and the >> -x86_64 and -arch64 variants are a proper superset of those binaries. >> So it's time to deprecate them and the corresponding 32-bit host >> environments now. >> >> This is a follow-up patch series from the previous discussion here: >> >> >> https://lore.kernel.org/qemu-devel/20230130114428.1297295-1-thuth@redhat.com/ >> >> where people still mentioned that there is still interest in certain >> support for 32-bit host hardware. But as far as I could see, there is >> no real need for 32-bit x86 host support and for system emulation on >> 32-bit arm hosts anymore, so it should be fine if we drop these host >> environments soon (these are also the two architectures that contribute >> the most to the long test times in our CI, so we would benefit a lot by >> dropping those). > > It is not clear from your cover that the deprecation only concern system > emulation on these hosts, not user emulation. x86 ==> deprecate both, user and system emulation support on 32-bit hosts arm ==> deprecate only system emulation on 32-bit hosts. I tried to say it with the sentence "there is no real need for 32-bit x86 host support and for system emulation on 32-bit arm hosts anymore, so it should be fine if we drop these host environments soon" ... not sure why it's unclear, but if you have some better sentences, I'm open for suggestions. > I wonder about tools. Apparently they depend on sysemu now. I was > building a 'configure --enable-tools --disable-system' but now it > is empty. I just did a try in a fresh build directory, and for me it was working: it builds qemu-img, qemu-io, qemu-edid etc. just fine. What was missing in your case? Thomas