Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751506AbbGaKzu (ORCPT ); Fri, 31 Jul 2015 06:55:50 -0400 Received: from smtp.citrix.com ([66.165.176.89]:61437 "EHLO SMTP.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751456AbbGaKzs (ORCPT ); Fri, 31 Jul 2015 06:55:48 -0400 X-IronPort-AV: E=Sophos;i="5.15,583,1432598400"; d="scan'208";a="286501342" Date: Fri, 31 Jul 2015 11:54:27 +0100 From: Stefano Stabellini X-X-Sender: sstabellini@kaball.uk.xensource.com To: David Vrabel CC: Julien Grall , , , Russell King , , , , Ingo Molnar , "H. Peter Anvin" , Boris Ostrovsky , "Thomas Gleixner" , Subject: Re: [Xen-devel] [PATCH 2/8] xen: Make clear that swiotlb and biomerge are dealing with DMA address In-Reply-To: <55B7A526.30105@citrix.com> Message-ID: References: <1438095769-2560-1-git-send-email-julien.grall@citrix.com> <1438095769-2560-3-git-send-email-julien.grall@citrix.com> <55B7A526.30105@citrix.com> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" X-DLP: MIA1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 587 Lines: 15 On Tue, 28 Jul 2015, David Vrabel wrote: > On 28/07/15 16:02, Julien Grall wrote: > > > > +/* Pseudo-physical <-> DMA conversion */ > > +static inline unsigned long pfn_to_dfn(unsigned long pfn) > > Use BFN for bus frame number. This is the terminology that is used in > the (proposed) pv-iommu hypercall. Yes, certainly better than DFN. -- 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/