From patchwork Tue Apr 21 21:48:53 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anthoine Bourgeois X-Patchwork-Id: 11502245 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 058EE913 for ; Tue, 21 Apr 2020 21:50:26 +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 CC4D0206D9 for ; Tue, 21 Apr 2020 21:50:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Ky44pJQw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CC4D0206D9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:36612 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jR0me-0005DH-Vi for patchwork-qemu-devel@patchwork.kernel.org; Tue, 21 Apr 2020 17:50:24 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51092) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jR0lv-0004nS-DV for qemu-devel@nongnu.org; Tue, 21 Apr 2020 17:49:39 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.90_1) (envelope-from ) id 1jR0ls-0006st-9z for qemu-devel@nongnu.org; Tue, 21 Apr 2020 17:49:38 -0400 Received: from mail-wr1-x442.google.com ([2a00:1450:4864:20::442]:41534) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jR0lr-0006ml-Pk for qemu-devel@nongnu.org; Tue, 21 Apr 2020 17:49:35 -0400 Received: by mail-wr1-x442.google.com with SMTP id g13so12994wrb.8 for ; Tue, 21 Apr 2020 14:49:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=hxPz1+FV0NyZSt3UlOe4Pt8nN7VD9hUNy9KsDhU6z3U=; b=Ky44pJQwK1Uj5tBPWiJ7RpnKTPL7s80fa+99mURtxsWwTjd9efaNbhBJnOzC3xP31C DUkTSFVU8fZ8v+GQ45mL3rzNF3PcmDroyDuGSS97OeC2M1zo1pjCwMJRpSnSYa2IEACa HfonsjoWxH8z4mbpBvyzKGDnI2RPCde8s6djyoimmvvvJ09wOFqT/uSVAWasBck/DfJr jBZaj6G3ZNNIx9joO7ThUXKTaojix7bV5BiJdDlAt+SYwDI968Ovs+hUGDEEZCv3H688 MklyQSl+QvR6lJtA8/GXqUylHOVUlNUt4I8xMIAI5oc+OkGYwWwpHSalHg+oQbI740a7 uvww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=hxPz1+FV0NyZSt3UlOe4Pt8nN7VD9hUNy9KsDhU6z3U=; b=f+PeBIiLlKzgExIYfvXOSlORFRvOZ2xxmX54wS6IV2VIXekPR+f7iOEcCWZmhaxmGI cN8OpfwXtnkE4Yx+QK/7x2KT2U/HKjEyz3WCEca7cbtrMvyowNU4nb0YmFUrsbPj/TWt VlC0eQwMyceS/s2Lj+6GLLLwa+VOTclWOCfSMXKYLc5vN4FEobAY4TOmFStU/b364bMe CgAvuCfXCj1gMK+z1kVY8KEQdlCQ9S35hGL5EKDmnVHNPAKhainuoRx47XqCyLbwiYiu i0XxBKZiQo9tB4pXBvpOKzh+Ltv2spRugu6vXb4KzAeI0rnLKeUIJVELRJMdDfk4+YMa AkTg== X-Gm-Message-State: AGi0PuZFKNPgLwLo+EGWTNmex8VGc/QK/fOt9hZKPMt4bjc7Yvu2MRAx mPYlCgfsTMAxuBYRIiYqbcw= X-Google-Smtp-Source: APiQypINmV7DUR/U9mubNJVbkNPvVVUxYRiCh/PXLqi7w8mRs8T1QgmxNVR3CeoWhP4rJGOyl7CpXg== X-Received: by 2002:a5d:4b90:: with SMTP id b16mr27723224wrt.16.1587505773171; Tue, 21 Apr 2020 14:49:33 -0700 (PDT) Received: from hobbes.blade-group.net ([2a01:e35:2fb2:a0d0:6d28:3d72:693e:c474]) by smtp.gmail.com with ESMTPSA id z1sm5051596wmf.15.2020.04.21.14.49.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Apr 2020 14:49:32 -0700 (PDT) From: Anthoine Bourgeois To: "Michael S . Tsirkin" , Gerd Hoffmann Subject: [PATCH] virtio-vga: fix virtio-vga bar ordering Date: Tue, 21 Apr 2020 23:48:53 +0200 Message-Id: <20200421214853.14412-1-anthoine.bourgeois@gmail.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::442; envelope-from=anthoine.bourgeois@gmail.com; helo=mail-wr1-x442.google.com X-detected-operating-system: by eggs.gnu.org: Error: [-] PROGRAM ABORT : Malformed IPv6 address (bad octet value). Location : parse_addr6(), p0f-client.c:67 X-Received-From: 2a00:1450:4864:20::442 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" With virtio-vga, pci bar are reordered. Bar #2 is used for compatibility with stdvga. By default, bar #2 is used by virtio modern io bar. This bar is the last one introduce in the virtio pci bar layout and it's crushed by the virtio-vga reordering. So virtio-vga and modern-pio-notify are incompatible because virtio-vga failed to initialize with this option. This fix exchange the modern io bar with the modern memory bar, replacing the msix bar that is never impacted anyway. Signed-off-by: Anthoine Bourgeois --- hw/display/virtio-vga.c | 2 +- hw/virtio/virtio-pci.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/display/virtio-vga.c b/hw/display/virtio-vga.c index 2b4c2aa126..f5f8737c60 100644 --- a/hw/display/virtio-vga.c +++ b/hw/display/virtio-vga.c @@ -113,7 +113,7 @@ static void virtio_vga_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp) * the stdvga mmio registers at the start of bar #2. */ vpci_dev->modern_mem_bar_idx = 2; - vpci_dev->msix_bar_idx = 4; + vpci_dev->modern_io_bar_idx = 4; if (!(vpci_dev->flags & VIRTIO_PCI_FLAG_PAGE_PER_VQ)) { /* diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index 4cb784389c..9c5efaa06e 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -1705,6 +1705,7 @@ static void virtio_pci_realize(PCIDevice *pci_dev, Error **errp) * * region 0 -- virtio legacy io bar * region 1 -- msi-x bar + * region 2 -- virtio modern io bar * region 4+5 -- virtio modern memory (64bit) bar * */