From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753837AbZK2Pzg (ORCPT ); Sun, 29 Nov 2009 10:55:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752447AbZK2Pzf (ORCPT ); Sun, 29 Nov 2009 10:55:35 -0500 Received: from mx1.redhat.com ([209.132.183.28]:23257 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751582AbZK2Pzf (ORCPT ); Sun, 29 Nov 2009 10:55:35 -0500 Date: Sun, 29 Nov 2009 17:52:01 +0200 From: "Michael S. Tsirkin" To: Rusty Russell , "Michael S. Tsirkin" , Mark McLoughlin , linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, Anthony Liguori , kvm@vger.kernel.org, Yan Vugenfirer Subject: [PATCH] virtio: set pci bus master enable bit Message-ID: <20091129155200.GA6667@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.19 (2009-01-05) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As all virtio devices perform DMA, we must enable bus mastering for them to be spec compliant. Signed-off-by: Michael S. Tsirkin --- drivers/virtio/virtio_pci.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index 28d9cf7..717bae1 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -648,6 +648,7 @@ static int __devinit virtio_pci_probe(struct pci_dev *pci_dev, goto out_req_regions; pci_set_drvdata(pci_dev, vp_dev); + pci_set_master(pci_dev); /* we use the subsystem vendor/device id as the virtio vendor/device * id. this allows us to use the same PCI vendor/device id for all -- 1.6.5.2.143.g8cc62