From patchwork Fri Mar 1 04:13:08 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: 08005325@163.com X-Patchwork-Id: 10834539 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2B3A41399 for ; Fri, 1 Mar 2019 06:16:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0A5E92F48B for ; Fri, 1 Mar 2019 06:16:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F1AAE2F497; Fri, 1 Mar 2019 06:16:11 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,FREEMAIL_FROM,MAILING_LIST_MULTI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 47CA92F48B for ; Fri, 1 Mar 2019 06:16:11 +0000 (UTC) Received: from localhost ([127.0.0.1]:51408 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gzbSr-0000pa-P3 for patchwork-qemu-devel@patchwork.kernel.org; Fri, 01 Mar 2019 01:16:09 -0500 Received: from eggs.gnu.org ([209.51.188.92]:47013) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from <08005325@163.com>) id 1gzZY6-00036p-Gy for qemu-devel@nongnu.org; Thu, 28 Feb 2019 23:13:27 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from <08005325@163.com>) id 1gzZY5-0001XB-Lh for qemu-devel@nongnu.org; Thu, 28 Feb 2019 23:13:26 -0500 Received: from m50-138.163.com ([123.125.50.138]:50584) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <08005325@163.com>) id 1gzZY4-0001Uc-GM for qemu-devel@nongnu.org; Thu, 28 Feb 2019 23:13:25 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id; bh=49nO+Bk73t9uid3bNz jysz+RUgRDYPJaa9AFmcCs494=; b=ZSNxhktYVffTPNDu/TepRPbK9kwwRcUEFJ aVA6e/Kr3SKS4O9QE7aXxhxNoD7BktV/I39WP2c8cFUYsX3xstdXMOdZGgu1an0R seR21i1hhmJ1LrgXQgdRiMPvyz3ZPaxkK8mVTMiob9rl/eRGCZWuDjiZUgsDXBLV fG0kii1Iw= Received: from computevgpu01.localdomain (unknown [180.168.17.114]) by smtp1 (Coremail) with SMTP id C9GowABn1jZWsXhcNKKuAw--.19S2; Fri, 01 Mar 2019 12:13:14 +0800 (CST) From: 08005325@163.com To: qemu-devel@nongnu.org Date: Fri, 1 Mar 2019 12:13:08 +0800 Message-Id: <1551413588-36475-1-git-send-email-08005325@163.com> X-Mailer: git-send-email 1.8.3.1 X-CM-TRANSID: C9GowABn1jZWsXhcNKKuAw--.19S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7uFW7ZF4kAw4kCFW8WF1rWFg_yoW8JFyDpw nrXF1fZr17JFnrtan3A3WUWF1Ykw4qqryxtry3Za4Igw1xXrnxt3WUCrya9rZ2kFW8Aa1x WF10gr42qrWkZaDanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07jV_M3UUUUU= X-Originating-IP: [180.168.17.114] X-CM-SenderInfo: qqyqikqtsvqiywtou0bp/ X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 123.125.50.138 X-Mailman-Approved-At: Fri, 01 Mar 2019 01:15:14 -0500 Subject: [Qemu-devel] [PATCH] Fix coredump when using virtio-vga X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Michael Qiu , kraxel@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Michael Qiu When using command -device virtio-vga,virgl=on the default max_outputs is 0, this will lead coredump, (con=0x0, hw_ops=0x5555564452e0 , opaque=0x55555754ec60) at ui/console.c:1872 (vpci_dev=0x55555754ec60, errp=0x7fffffffdbb8) at qemu/hw/display/virtio-vga.c:160 (pci_dev=0x55555754ec60, errp=0x7fffffffdbb8) at hw/virtio/virtio-pci.c:1786 ... This patch force ths max_outputs to 1 when it not greater than 0. Signed-off-by: Michael Qiu --- hw/display/virtio-gpu-pci.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/hw/display/virtio-gpu-pci.c b/hw/display/virtio-gpu-pci.c index bdcd33c..59b571d 100644 --- a/hw/display/virtio-gpu-pci.c +++ b/hw/display/virtio-gpu-pci.c @@ -46,6 +46,11 @@ static void virtio_gpu_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) int i; Error *local_error = NULL; + if (g->conf.max_outputs <= 0) { + qemu_log("WARNING: virtio gpu max_outputs must greater than 1"); + g->conf.max_outputs = 1; + } + qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); virtio_pci_force_virtio_1(vpci_dev); object_property_set_bool(OBJECT(vdev), true, "realized", &local_error);