Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753110AbaJFP3y (ORCPT ); Mon, 6 Oct 2014 11:29:54 -0400 Received: from e06smtp11.uk.ibm.com ([195.75.94.107]:55854 "EHLO e06smtp11.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752988AbaJFP3w (ORCPT ); Mon, 6 Oct 2014 11:29:52 -0400 Date: Mon, 6 Oct 2014 17:29:42 +0200 From: Cornelia Huck To: "Michael S. Tsirkin" Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org Subject: Re: [PATCH v2 10/15] virtio: add API to enable VQs early Message-ID: <20141006172942.12271379.cornelia.huck@de.ibm.com> In-Reply-To: <1412608214-31944-11-git-send-email-mst@redhat.com> References: <1412608214-31944-1-git-send-email-mst@redhat.com> <1412608214-31944-11-git-send-email-mst@redhat.com> Organization: IBM Deutschland Research & Development GmbH Vorsitzende des Aufsichtsrats: Martina Koederitz =?UTF-8?B?R2VzY2jDpGZ0c2bDvGhydW5nOg==?= Dirk Wittkopp Sitz der Gesellschaft: =?UTF-8?B?QsO2Ymxpbmdlbg==?= Registergericht: Amtsgericht Stuttgart, HRB 243294 X-Mailer: Claws Mail 3.8.0 (GTK+ 2.24.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 14100615-5024-0000-0000-0000018D9DD3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 6 Oct 2014 18:11:16 +0300 "Michael S. Tsirkin" wrote: > virtio spec 0.9.X requires DRIVER_OK to be set before > VQs are used, but some drivers use VQs before probe > function returns. > Since DRIVER_OK is set after probe, this violates the spec. > > Even though under virtio 1.0 transitional devices support this > behaviour, we want to make it possible for those early callers to become > spec compliant and eventually support non-transitional devices. > > Add API for drivers to call before using VQs. > > Sets DRIVER_OK internally. > > Signed-off-by: Michael S. Tsirkin > --- > include/linux/virtio_config.h | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) Reviewed-by: Cornelia Huck -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/