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[209.132.180.67]) by mx.google.com with ESMTP id j23si14313655pll.748.2017.11.28.10.56.51; Tue, 28 Nov 2017 10:57:04 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752934AbdK1S4N (ORCPT + 72 others); Tue, 28 Nov 2017 13:56:13 -0500 Received: from aserp1040.oracle.com ([141.146.126.69]:41651 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751701AbdK1S4L (ORCPT ); Tue, 28 Nov 2017 13:56:11 -0500 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id vASIu2bE020604 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 28 Nov 2017 18:56:03 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userv0021.oracle.com (8.14.4/8.14.4) with ESMTP id vASIu2qm009881 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 28 Nov 2017 18:56:02 GMT Received: from abhmp0007.oracle.com (abhmp0007.oracle.com [141.146.116.13]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id vASIu1Pp011567; Tue, 28 Nov 2017 18:56:02 GMT Received: from bostrovs-us.us.oracle.com (/10.152.32.65) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 28 Nov 2017 10:56:01 -0800 Subject: Re: [PATCH v9 4/5] x86/PCI: Enable a 64bit BAR on AMD Family 15h (Models 30h-3fh) Processors v5 To: =?UTF-8?Q?Christian_K=c3=b6nig?= , helgaas@kernel.org, linux-pci@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org, xen-devel References: <20171018135821.3248-1-deathsimple@vodafone.de> <20171018135821.3248-5-deathsimple@vodafone.de> <26df0a78-8028-e42c-ce50-4cefe612a7e1@oracle.com> <3443aad0-8c3b-b97e-685a-96b0866827be@amd.com> <7936fdd3-1615-ac1f-7b75-330ccb6a1a3f@amd.com> <0bb468d9-bc1d-e3c5-e313-1cf9408380f0@oracle.com> <275e859a-0ddd-ea7f-a681-67e42a5233fe@amd.com> <38bc76d9-2ed5-61f3-24b3-085031825181@oracle.com> <65885386-3dde-de23-7e95-7d96dfdf6033@oracle.com> <0ab28334-3ccc-2a93-9991-396ee01a3662@amd.com> From: Boris Ostrovsky Message-ID: Date: Tue, 28 Nov 2017 13:55:58 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: <0ab28334-3ccc-2a93-9991-396ee01a3662@amd.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Source-IP: userv0021.oracle.com [156.151.31.71] Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/28/2017 04:12 AM, Christian König wrote: > > > How about the attached patch? It limits the newly added MMIO space to > the upper 256GB of the address space. That should still be enough for > most devices, but we avoid both issues with Xen dom0 as most likely > problems with memory hotplug as well. It certainly makes the problem to be less likely so I guess we could do this for now. Thanks. -boris From 1585311197931782702@xxx Tue Nov 28 12:02:52 +0000 2017 X-GM-THRID: 1581604510312740883 X-Gmail-Labels: Inbox,Category Forums,HistoricalUnread