From patchwork Thu Feb 18 20:05:57 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Williamson X-Patchwork-Id: 584896 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id E04D214031D for ; Fri, 19 Feb 2016 07:06:43 +1100 (AEDT) Received: from localhost ([::1]:45026 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aWUqX-0001Jf-VE for incoming@patchwork.ozlabs.org; Thu, 18 Feb 2016 15:06:41 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54789) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aWUpx-0000Fr-84 for qemu-devel@nongnu.org; Thu, 18 Feb 2016 15:06:11 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aWUpq-00082G-VO for qemu-devel@nongnu.org; Thu, 18 Feb 2016 15:06:05 -0500 Received: from mx1.redhat.com ([209.132.183.28]:40285) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aWUpq-00081t-QQ for qemu-devel@nongnu.org; Thu, 18 Feb 2016 15:05:58 -0500 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 777061E44; Thu, 18 Feb 2016 20:05:58 +0000 (UTC) Received: from gimli.home (ovpn-113-102.phx2.redhat.com [10.3.113.102]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u1IK5vlD023833; Thu, 18 Feb 2016 15:05:58 -0500 From: Alex Williamson To: qemu-devel@nongnu.org Date: Thu, 18 Feb 2016 13:05:57 -0700 Message-ID: <20160218200557.29220.98603.stgit@gimli.home> In-Reply-To: <20160218200419.29220.39836.stgit@gimli.home> References: <20160218200419.29220.39836.stgit@gimli.home> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 Cc: Chen Fan , Marcel Apfelbaum , "Michael S. Tsirkin" Subject: [Qemu-devel] [PULL 02/13] vfio: make the 4 bytes aligned for capability size X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 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 From: Chen Fan this function search the capability from the end, the last size should 0x100 - pos, not 0xff - pos. Signed-off-by: Chen Fan Reviewed-by: Marcel Apfelbaum Reviewed-by: Michael S. Tsirkin Signed-off-by: Alex Williamson --- hw/vfio/pci.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 49f3d2d..e671506 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -1505,7 +1505,8 @@ static void vfio_unmap_bars(VFIOPCIDevice *vdev) */ static uint8_t vfio_std_cap_max_size(PCIDevice *pdev, uint8_t pos) { - uint8_t tmp, next = 0xff; + uint8_t tmp; + uint16_t next = PCI_CONFIG_SPACE_SIZE; for (tmp = pdev->config[PCI_CAPABILITY_LIST]; tmp; tmp = pdev->config[tmp + 1]) {