From patchwork Fri May 12 12:40:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 1780574 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=aWLBcx5o; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4QHpMP6SZ8z20KJ for ; Fri, 12 May 2023 22:42:57 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pxS4j-0007X2-IM; Fri, 12 May 2023 08:40:45 -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 1pxS4i-0007Wm-NL for qemu-devel@nongnu.org; Fri, 12 May 2023 08:40:44 -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 1pxS4h-0006Jh-37 for qemu-devel@nongnu.org; Fri, 12 May 2023 08:40:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1683895242; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=3neinR8MEJhTuDj8ra6ZWrpLW+xh3Te3jouJUdxwKIM=; b=aWLBcx5oGb5PeE5MCXWuwLLIDyS8MkNjHAAVl0EVBU3Kd07JFsZH9O4ws0OZAamO0m7cc9 lHofBNpIOakUWetZh2tsovEwD2XyM9cNCZCTKAYkpVWFBOwunYxAyVMQALqWDAYVk4y6ZY uszpFcmNi4w5c0Zz3sTphN0bu3tbJGU= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-170-GZ1exGe4Mx6Koz7eP0SUAQ-1; Fri, 12 May 2023 08:40:39 -0400 X-MC-Unique: GZ1exGe4Mx6Koz7eP0SUAQ-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 4658688D013; Fri, 12 May 2023 12:40:39 +0000 (UTC) Received: from thuth.com (unknown [10.39.192.251]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2F8101121314; Fri, 12 May 2023 12:40:38 +0000 (UTC) From: Thomas Huth To: qemu-devel@nongnu.org, Paolo Bonzini , =?utf-8?q?Al?= =?utf-8?q?ex_Benn=C3=A9e?= , Fabiano Rosas Cc: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Subject: [PATCH 02/18] softmmu/vl.c: Check for the availability of the VGA device before using it Date: Fri, 12 May 2023 14:40:17 +0200 Message-Id: <20230512124033.502654-3-thuth@redhat.com> In-Reply-To: <20230512124033.502654-1-thuth@redhat.com> References: <20230512124033.502654-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.3 Received-SPF: pass client-ip=170.10.133.124; envelope-from=thuth@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_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org In case the user disabled the default VGA device in the binary (e.g. with the "--without-default-devices" configure switch), we should not try to use it by default if QEMU is running with the default devices, otherwise it aborts when trying to use it. Simply emit a warning instead. Signed-off-by: Thomas Huth --- softmmu/vl.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/softmmu/vl.c b/softmmu/vl.c index 6c2427262b..43d3b972da 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -957,7 +957,18 @@ static const char * get_default_vga_model(const MachineClass *machine_class) { if (machine_class->default_display) { - return machine_class->default_display; + for (int t = 0; t < VGA_TYPE_MAX; t++) { + const VGAInterfaceInfo *ti = &vga_interfaces[t]; + + if (ti->opt_name && vga_interface_available(t) && + g_str_equal(ti->opt_name, machine_class->default_display)) { + return machine_class->default_display; + } + } + + warn_report_once("Default display '%s' is not available in this binary", + machine_class->default_display); + return NULL; } else if (vga_interface_available(VGA_CIRRUS)) { return "cirrus"; } else if (vga_interface_available(VGA_STD)) {