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=-5.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, 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 A33C5C433DB for ; Thu, 4 Mar 2021 16:41:41 +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 4BA8364F40 for ; Thu, 4 Mar 2021 16:41:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4BA8364F40 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=amsat.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:39976 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lHr2i-0007Cq-AY for qemu-devel@archiver.kernel.org; Thu, 04 Mar 2021 11:41:40 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:36284) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lHr12-0006Lk-Ch for qemu-devel@nongnu.org; Thu, 04 Mar 2021 11:39:56 -0500 Received: from mail-wr1-x434.google.com ([2a00:1450:4864:20::434]:35367) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lHr10-00017a-46 for qemu-devel@nongnu.org; Thu, 04 Mar 2021 11:39:55 -0500 Received: by mail-wr1-x434.google.com with SMTP id l12so28360052wry.2 for ; Thu, 04 Mar 2021 08:39:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=6++V345q8e3idnkcKndXor5nJEwzYiTvDMED7MqAe5o=; b=ZbbaLXnI7elWXwHoUS2UGzqI26grk+OuY58XHS77w6IuQ5Uj/gNKWms1BEQaexsm1w yzg54sDg9Si9qgUya8LeAgtkcA7vGCpMDkHdzuwv9Jk0JMi8hOvjf4KXgNgI/Yf9dZYa uUGTekJO6+e/OHzO/TNJcN12q5zHPj1GhpAzoVksuOShmaNaUmeOrknjqJzOUtWyUXTh GRjQ/7QafyVDAp+6QggY2jiYW+wp7gBGoc99SiDb8rHTxOYeZY/Riqe9mmDP0zoL5cha cwVkQ4bj3UKSxnJJ/OKvHVHietFWlU7bzkUaCYi80pwgJMPuqj8l03wrt92ws6MR61UJ 3d+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:subject:to:cc:references:from:message-id :date:user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=6++V345q8e3idnkcKndXor5nJEwzYiTvDMED7MqAe5o=; b=Sp0Ibagnymfeib+UzaA81x0w5VRE7g/cFwGivfeKorYpOe7z4RQUB35YsacRFxrIYQ 5flzWKkSt80Ob4N/NdN6trac8D6zWpwwsmAx5w0hWMaX8e8brWGBy6f7aTtoDaQP4OwT gY91dQx/xyUW5MDTtC+xsLCo9BECVATg4KaLr/nP2Vzb9YMdrJXpKX0F107StfxhnTdz f0eaX5DNvgqQAEm8XYkYEQzs0iQLpHaU07uQzQy75S2WbSgOeXrqf3TcfZ/F4IZprpE6 hUtph/eYNbfi/wMVF18VGrMkJQ6/2XIJVi2oLeVk05uxpF0LHFFxN1CNuYnQ7VHF2JPH EJGA== X-Gm-Message-State: AOAM530cMLyh90/AzNQuKgV6oqw0afZhq8MNc5eElzBjcKenfWRXtSa8 JyCkaqj4Z2m0HTxPUnPf2z4= X-Google-Smtp-Source: ABdhPJxb1zTSPI27m3DymToqlZzlOoCEl1+/LB0BMnMMpF8uactP4C+wm3RE/PI00kbZg63GM9931Q== X-Received: by 2002:adf:fec5:: with SMTP id q5mr4720653wrs.43.1614875992644; Thu, 04 Mar 2021 08:39:52 -0800 (PST) Received: from [192.168.1.36] (68.red-83-57-175.dynamicip.rima-tde.net. [83.57.175.68]) by smtp.gmail.com with ESMTPSA id j12sm27934391wrt.27.2021.03.04.08.39.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 04 Mar 2021 08:39:51 -0800 (PST) Subject: Re: [RFC v1 00/38] arm cleanup experiment for kvm-only build To: Richard Henderson , Claudio Fontana , Peter Maydell References: <20210221092449.7545-1-cfontana@suse.de> <875z2k53mn.fsf@linaro.org> <63847c79-93c2-5ee3-d568-9091fedf325c@suse.de> <87a6rmkffo.fsf@linaro.org> <8d4a427a-94dd-7472-e8ae-98c4efa44ce0@suse.de> <5fb3cf49-fc09-7e7c-d34e-299f04e9842a@suse.de> <335966c3-9f31-5868-54e5-edb28a37c50c@suse.de> <1b92cbea-8abf-40b9-337a-15f34ef40f61@linaro.org> From: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= Message-ID: <38f0a65d-b5e4-3795-03a3-d6b1b3346816@amsat.org> Date: Thu, 4 Mar 2021 17:39:50 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.0 MIME-Version: 1.0 In-Reply-To: <1b92cbea-8abf-40b9-337a-15f34ef40f61@linaro.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::434; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wr1-x434.google.com X-Spam_score_int: -14 X-Spam_score: -1.5 X-Spam_bar: - X-Spam_report: (-1.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.249, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini , Roman Bolshakov , =?UTF-8?Q?Alex_Benn=c3=a9e?= , Eduardo Habkost , QEMU Developers Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 3/3/21 7:54 PM, Richard Henderson wrote: > On 3/3/21 10:45 AM, Claudio Fontana wrote: >> It is a bit weird that qemu-system-aarch64 runs with a cortex-a15 >> model tbh, as cortex-a15 is not capable of aarch64. > > No, but qemu-system-aarch64 is capable of 32-bit emulation (because most > 64-bit cpus retain 32-bit mode).  It takes no extra effort to run > cortex-a15 than it does a cortex-a57. IIRC qemu-system-arm starts the aa64 cores in 32-bit mode, while qemu-system-aarch64 in 64-bit (this gave me trouble because the kernels for the raspi 64-bit SoCs are in 32-bit mode -- because the GPU starts them in this mode). > I have wondered if we should have just one qemu-system-arm that does it > all and drop the separate qemu-system-aarch64 -- or vice versa.  But > we've had the separation around so long I'm sure someone would be confused. That would be great cleanup IMHO.