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 87089EE57DF for ; Mon, 11 Sep 2023 13:14:05 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qfgii-0001Pf-R6; Mon, 11 Sep 2023 09:12:52 -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 1qfgig-0001Ow-5z for qemu-devel@nongnu.org; Mon, 11 Sep 2023 09:12:50 -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 1qfgid-0002cc-En for qemu-devel@nongnu.org; Mon, 11 Sep 2023 09:12:49 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1694437965; 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=vdftCAnUI2Kn7OsEG+/A7jqEnolehB6PCKS+Evlh0Ho=; b=f8b1gm2wgvxqdKHP1j07zDIxF5GGlufq2gytf4FuA+zVNJsHXEyu4OEqp2kEdc9CFgu8Td WRLzEoLqNBtJI3z78xiFkyqOW54+DU/bJ4q94965tYO/78KGCZnftugOMJUv3JLJKEuhdc q44J/y0gimsH7ojpd5sabjIzrpFiLKk= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-488-sj-tP6SDN7-piqGtENLxSg-1; Mon, 11 Sep 2023 09:12:40 -0400 X-MC-Unique: sj-tP6SDN7-piqGtENLxSg-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 007251C05EBA; Mon, 11 Sep 2023 13:12:40 +0000 (UTC) Received: from [10.39.195.23] (unknown [10.39.195.23]) by smtp.corp.redhat.com (Postfix) with ESMTPS id AC66A40C6EA8; Mon, 11 Sep 2023 13:12:37 +0000 (UTC) Message-ID: <1d5713bd-5be3-d1c2-8d71-f0f59e8f1bca@redhat.com> Date: Mon, 11 Sep 2023 15:12:36 +0200 MIME-Version: 1.0 Subject: Re: riscv64 virt board crash upon startup To: Gerd Hoffmann , =?UTF-8?Q?Marc-Andr=c3=a9_Lureau?= Cc: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , qemu devel list , "Richard W.M. Jones" , Sunil V L , Andrew Jones , "Warkentin, Andrei" , Palmer Dabbelt , Alistair Francis , Bin Meng , Weiwei Li , Daniel Henrique Barboza , Liu Zhiwei , qemu-riscv@nongnu.org References: <139b9697-5732-dafa-0942-6d93eed674c7@redhat.com> <1398e971-8115-13e1-6ee4-4c46df0814dc@linaro.org> Content-Language: en-US From: Laszlo Ersek In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Received-SPF: pass client-ip=170.10.133.124; envelope-from=lersek@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, RCVD_IN_DNSWL_NONE=-0.0001, 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: 2.1.29 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 9/11/23 10:53, Gerd Hoffmann wrote: > On Mon, Sep 11, 2023 at 12:12:43PM +0400, Marc-André Lureau wrote: >>> Gerd, here's the question for you: why are "device" and "head" QOM properties in the first place? What are they needed for? >>> >> >> You get QOM tree introspection (ex: (qemu) qom-get >> /backend/console[0]/device type). Other than that, I don't think it >> brings anything else. > > You can configure vnc server(s) to show a specific device + head, which > allows to run multihead configurations by using multiple vnc servers (one > for each head). > > You can link input devices to device + head, so input events can go to > different devices depending on where they are coming from. Which is > most useful for tablet devices in a vnc multihead setup, each head has > its own tablet device then. Requires manual guest-side configuration > to establish the same tablet <-> head relationship (tested that years > ago with X11, not sure if and how this can be done with wayland). OK, so I'm going to drop patch#3. Thanks! Laszlo