From nobody Mon Feb 9 04:05:53 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=suse.de Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1628898267372268.05421575636535; Fri, 13 Aug 2021 16:44:27 -0700 (PDT) Received: from localhost ([::1]:57912 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mEgqg-0002Iv-Bx for importer@patchew.org; Fri, 13 Aug 2021 19:44:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:53900) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mEgjU-000147-AO for qemu-devel@nongnu.org; Fri, 13 Aug 2021 19:37:00 -0400 Received: from smtp-out1.suse.de ([195.135.220.28]:40358) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mEgjS-0007Tb-In for qemu-devel@nongnu.org; Fri, 13 Aug 2021 19:36:59 -0400 Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 8BD49223A3; Fri, 13 Aug 2021 23:36:55 +0000 (UTC) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 1897013B06; Fri, 13 Aug 2021 23:36:53 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id E+U4MxUCF2FuXwAAMHmgww (envelope-from ); Fri, 13 Aug 2021 23:36:53 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1628897815; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=X/UKWplQSLmkRHtR3f8GCDp8miuTm7kUrc8RF1r2uTc=; b=dRlH+XctiKq1HwZHNC0aIv5uFsG4gB9tlc4luPK6NyIbaSpAGv52aS3risMETztHC5HU8v Q3mLNqs/dMAmQATr410Tp1a/6QPPzEwZK1xCNsGrl0Z9VNouxhbkQVPhENSd8ERtQR1x2Z HY28tCDHKzDXAUCCWOqZZFmO/ndg5Uo= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1628897815; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=X/UKWplQSLmkRHtR3f8GCDp8miuTm7kUrc8RF1r2uTc=; b=mzx7iruyEO30RitZesGHeDep2qWf2iXI0x7n4Zj9x7KSiQdRCeZFAuDELNcWaIw9pF5NHz 1QR14IPaGDJ206Aw== From: "Jose R. Ziviani" To: qemu-devel@nongnu.org Subject: [PATCH] vga: don't abort when adding a duplicate isa-vga device Date: Fri, 13 Aug 2021 20:36:19 -0300 Message-Id: <20210813233619.32178-1-jziviani@suse.de> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=195.135.220.28; envelope-from=jziviani@suse.de; helo=smtp-out1.suse.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, 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: thuth@redhat.com, kraxel@redhat.com, "Jose R. Ziviani" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (found 2 invalid signatures) X-ZM-MESSAGEID: 1628898268483100001 Content-Type: text/plain; charset="utf-8" If users try to add an isa-vga device that was already registered, still in command line, qemu will crash: $ qemu-system-mips64el -M pica61 -device isa-vga RAMBlock "vga.vram" already registered, abort! Aborted (core dumped) That particular board registers such device automaticaly, so it's not obvious that a VGA device already exists. This patch changes this behavior by displaying a message and ignoring that device, starting qemu normally. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/44 Signed-off-by: Jose R. Ziviani --- hw/display/vga-isa.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/hw/display/vga-isa.c b/hw/display/vga-isa.c index 90851e730b..69db502dde 100644 --- a/hw/display/vga-isa.c +++ b/hw/display/vga-isa.c @@ -61,6 +61,15 @@ static void vga_isa_realizefn(DeviceState *dev, Error **= errp) MemoryRegion *vga_io_memory; const MemoryRegionPortio *vga_ports, *vbe_ports; =20 + /* + * some machines register VGA by default, so instead of aborting + * it, show a message and ignore this device. + */ + if (qemu_ram_block_by_name("vga.vram")) { + error_report("vga.vram is already registered, ignoring this device= "); + return; + } + s->global_vmstate =3D true; vga_common_init(s, OBJECT(dev)); s->legacy_address_space =3D isa_address_space(isadev); --=20 2.32.0