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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,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 14CF5C433DB for ; Wed, 3 Mar 2021 18:45:26 +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 9BD6964ECF for ; Wed, 3 Mar 2021 18:45:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9BD6964ECF Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:37972 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lHWUu-00037I-LN for qemu-devel@archiver.kernel.org; Wed, 03 Mar 2021 13:45:24 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:59798) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lHWOj-0004no-6u for qemu-devel@nongnu.org; Wed, 03 Mar 2021 13:39:01 -0500 Received: from mx2.suse.de ([195.135.220.15]:39644) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lHWOf-0005R3-Un for qemu-devel@nongnu.org; Wed, 03 Mar 2021 13:39:00 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 5C65DACBC; Wed, 3 Mar 2021 18:38:56 +0000 (UTC) Subject: Re: [RFC v1 00/38] arm cleanup experiment for kvm-only build To: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , =?UTF-8?Q?Alex_Benn=c3=a9e?= 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> <25bce8e9-2fad-6568-66a5-278a04817f63@redhat.com> From: Claudio Fontana Message-ID: <57a2c344-e54e-a4f9-64b6-df810f3c3c35@suse.de> Date: Wed, 3 Mar 2021 19:38:55 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: <25bce8e9-2fad-6568-66a5-278a04817f63@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=195.135.220.15; envelope-from=cfontana@suse.de; helo=mx2.suse.de X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Eduardo Habkost , Richard Henderson , qemu-devel@nongnu.org, Roman Bolshakov , Paolo Bonzini Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 3/3/21 7:34 PM, Philippe Mathieu-Daudé wrote: > On 3/3/21 6:57 PM, Claudio Fontana wrote: >> On 3/1/21 5:23 PM, Alex Bennée wrote: >>> >>> Claudio Fontana writes: >>> >>>> On 2/23/21 10:18 AM, Philippe Mathieu-Daudé wrote: >>>>> On 2/22/21 8:00 PM, Alex Bennée wrote: >>>>>> >>>>>> Claudio Fontana writes: >>>>>> >>>>>>> Hi all, >>>>>>> >>>>>>> this is an experiment, a cleanup based on and requiring the series >>>>>>> "i386 cleanup PART 2": >>>>>>> >>>>>>> https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg05935.html >>>>>>> >>>>>>> The goal is to split the code between TCG-only and non-TCG code, >>>>>>> fixing the KVM-only build (configure --disable-tcg), >>>>>>> >>>>>>> and laying the ground for further cleanups and the use of the >>>>>>> new accel objects in the hierarchy to specialize the cpu >>>>>>> according to the accelerator. >>>>>>> >>>>>>> This is known to be an early state, with probably a lot of work >>>>>>> still needed. >>>>>> >>>>>> Well early work is looking pretty good: >>>>>> >>>>>> 18:59:22 [alex@idun:~/l/q/b/default] review/arm-cleanup-rfc1|… ± ls -lh qemu-system-aarch64 >>>>>> -rwxr-xr-x 1 alex alex 107M Feb 22 18:08 qemu-system-aarch64* >>>>>> 18:59:29 [alex@idun:~/l/q/b/default] review/arm-cleanup-rfc1|… ± ls -lh ../disable.tcg/qemu-system-aarch64 >>>>>> -rwxr-xr-x 1 alex alex 76M Feb 22 17:47 ../disable.tcg/qemu-system-aarch64* >>>>> >>>>> :~) >>>>> >>>>>> >>>>>> and I've tested the KVM side works well enough with a basic image. >>>>> >>>>> >>>> >>>> I am working on the next version, one thing I noticed among others as I get close to the v2, >>>> is the fact that tests/ for arm require tcg in many cases. >>> >>> I think in a lot of cases they are historical because developers >>> generally weren't running on native hardware. That said off the top of >>> my head: >>> >>> tests/tcg - linux-user, so implies TCG >>> tests/tcg/system - use semihosting (at least for arm/aarch64) - which implies TCG >>> tests/acceptance/[replay_kernel/reverse_debugging/tcg_plugins] - all need TCG features >>> >>> I don't think there is any reason the others can't run with KVM - and >>> probably should on real hardware. >> >> >> One thing I noticed is that tests try to run qemu-system-aarch64 with accel "qtest" and machine "virt", >> and the thing tries to create a cortex-a15 cpu model for some unknown reason. >> >> Digging and sweating.. > > I already sent a series to fix that, feel free to reuse > some patches: > https://www.mail-archive.com/qemu-block@nongnu.org/msg80440.html > Ah yes I took already something from here, will look some more thanks! Ciao, Claudio