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=-6.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 91059C433DB for ; Mon, 15 Mar 2021 15:26:20 +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 12D1064E45 for ; Mon, 15 Mar 2021 15:26:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 12D1064E45 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:60762 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lLp6p-0003Pr-4A for qemu-devel@archiver.kernel.org; Mon, 15 Mar 2021 11:26:19 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41706) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lLp5K-0002ON-Ms for qemu-devel@nongnu.org; Mon, 15 Mar 2021 11:24:46 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:49551) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lLp5J-0001R1-5q for qemu-devel@nongnu.org; Mon, 15 Mar 2021 11:24:46 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1615821884; 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: in-reply-to:in-reply-to:references:references; bh=IwsEi8heIKKT+y5O8RQSjADSvV/H07C2hyZeHHxvtyc=; b=KQ5ue4aWVi9Sl/ChsW5FX30QqTN3R95FR8IbSMRSf+1SN+pYZGPpQr0k7TccsvQ20YaoHZ gCTtxWYF6FKoxjMxZqNJhqnYQgTPGz0DkxH77QGjhsbUtfgyyYZtpLAWsOCtOP5Eg72bvA H3tMvyh2ZgaX+/yWuV087HvQHfrXw28= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-477-SrFs0BHiPdidYgAUN3Mifw-1; Mon, 15 Mar 2021 11:24:42 -0400 X-MC-Unique: SrFs0BHiPdidYgAUN3Mifw-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 72E121932480; Mon, 15 Mar 2021 15:24:41 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-112-141.ams2.redhat.com [10.36.112.141]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 363DA60C0F; Mon, 15 Mar 2021 15:24:41 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id AA0EC1800609; Mon, 15 Mar 2021 16:24:38 +0100 (CET) Date: Mon, 15 Mar 2021 16:24:38 +0100 From: Gerd Hoffmann To: Vitaly Chipounov Subject: Re: [PATCH] hw/display/virtio-vga: made vga memory size configurable Message-ID: <20210315152438.crifvkfhvmmxnxut@sirius.home.kraxel.org> References: <20210314122314.3201195-1-vitaly@cyberhaven.com> <20210315072150.rst46y4l23box7jq@sirius.home.kraxel.org> MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=216.205.24.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.25, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, 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: qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Mon, Mar 15, 2021 at 12:29:16PM +0100, Vitaly Chipounov wrote: > On Mon, Mar 15, 2021 at 8:21 AM Gerd Hoffmann wrote: > > > > On Sun, Mar 14, 2021 at 01:23:14PM +0100, vitaly@cyberhaven.com wrote: > > > From: Vitaly Chipounov > > > > > > This enables higher resolutions. > > > > No. virtio-vga supports higher resolutions just fine once the guest > > driver is loaded. The video memory is used at boot only, before the > > guest driver is loaded, and 8MB just for a boot display is more than > > generous. > > > > If your guest has no virtio driver use stdvga instead of running > > virtio-vga permanently in vga compatibility mode. > > I tried -device VGA,vgamem_mb=32. I did not see any resolution above > 1080p on a Windows 10 guest. Try "-device VGA,vgamem_mb=32,edid=off". Windows seems to not like our edid block for some reason. take care, Gerd