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,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 1921EC2D0E4 for ; Fri, 27 Nov 2020 13:37:22 +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 4747D2224E for ; Fri, 27 Nov 2020 13:37:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4747D2224E 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]:37970 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kidw8-0006Ze-5U for qemu-devel@archiver.kernel.org; Fri, 27 Nov 2020 08:37:20 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:45214) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kidrd-0002ef-Sr for qemu-devel@nongnu.org; Fri, 27 Nov 2020 08:32:42 -0500 Received: from mx2.suse.de ([195.135.220.15]:40108) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kidrY-0001kP-B8 for qemu-devel@nongnu.org; Fri, 27 Nov 2020 08:32:40 -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 9BF55ABD7; Fri, 27 Nov 2020 13:32:30 +0000 (UTC) Subject: Re: [RFC v6 10/11] accel: introduce AccelCPUClass extending CPUClass To: Paolo Bonzini , Thomas Huth , Richard Henderson , Stefano Stabellini , Wenchao Wang , Roman Bolshakov , Sunil Muthuswamy , =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= References: <20201126223218.31480-1-cfontana@suse.de> <20201126223218.31480-11-cfontana@suse.de> <6cbd508c-b24b-3219-3302-196dfefaa8f7@redhat.com> <925030fe-4a98-cfb2-ead6-b4b5dbe581ca@suse.de> <5415cf3a-d25b-1a8f-6388-5b665f777237@redhat.com> From: Claudio Fontana Message-ID: Date: Fri, 27 Nov 2020 14:32:29 +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: <5415cf3a-d25b-1a8f-6388-5b665f777237@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit 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: Laurent Vivier , Eduardo Habkost , Paul Durrant , Jason Wang , Marcelo Tosatti , qemu-devel@nongnu.org, Peter Xu , Dario Faggioli , "Emilio G . Cota" , haxm-team@intel.com, Cameron Esfahani , Anthony Perard , Bruce Rogers , Olaf Hering , Colin Xu Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 11/27/20 2:31 PM, Paolo Bonzini wrote: > On 27/11/20 12:41, Claudio Fontana wrote: >> This seems to be due to "-machine none", is machine none supposed to >> have no default cpu_type? Is it expected that for machine none >> current_machine->cpu_type is NULL, or is it a bug? > > "-machine none" has no CPU at all, so I think anything is acceptable. > There's also the possibility of emulating big.LITTLE machines in the > future with >1 cpu_type, so the cop out of doing it on the whole > hierarchy is easiest. > > Paolo > Ok will take that route then. Thanks! Claudio