From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936195AbdADOjK (ORCPT ); Wed, 4 Jan 2017 09:39:10 -0500 Received: from 8bytes.org ([81.169.241.247]:43772 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756288AbdADOjB (ORCPT ); Wed, 4 Jan 2017 09:39:01 -0500 Date: Wed, 4 Jan 2017 15:39:09 +0100 From: Joerg Roedel To: "Raj, Ashok" Cc: Bjorn Helgaas , David Woodhouse , g@bhelgaas-glaptop.roam.corp.google.com, linux-pci@vger.kernel.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, rwright@hpe.com Subject: Re: possible dmar_init_reserved_ranges() error Message-ID: <20170104143909.GD10632@8bytes.org> References: <20161219212044.GA21774@bhelgaas-glaptop.roam.corp.google.com> <20161227234417.GA24366@bhelgaas-glaptop.roam.corp.google.com> <20161228032139.GA254916@otc-nc-03> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20161228032139.GA254916@otc-nc-03> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Dec 27, 2016 at 07:21:39PM -0800, Raj, Ashok wrote: > This sounds reasonable, if we can reserve from the host bridge apertures > it should take care of hot-plug cases as well, and should simply how the > reservation is made. Agreed, I have this on my todo list already since I converted the AMD IOMMU driver to the iova allocator. Just reserving the pci windows is much better than what we are currently doing. Joerg