Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752544AbaATWBp (ORCPT ); Mon, 20 Jan 2014 17:01:45 -0500 Received: from mx1.redhat.com ([209.132.183.28]:41757 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750942AbaATWBm (ORCPT ); Mon, 20 Jan 2014 17:01:42 -0500 Subject: [PATCH 0/2] Quirk Intel PCH root ports for ACS-like features From: Alex Williamson To: bhelgaas@google.com, linux-pci@vger.kernel.org Cc: linux-kernel@vger.kernel.org Date: Mon, 20 Jan 2014 15:01:40 -0700 Message-ID: <20140120215502.29567.11291.stgit@bling.home> User-Agent: StGit/0.17-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As described in 2/2 many Intel root ports lack PCIe ACS capabilities which results in excessively large IOMMU groups. Many of these root ports do provide isolation capabilities, we just need to use device specific mechanisms to enable and verify. Long term, I hope we can round out this list (particularly to include X79 root ports) and more importantly, encourage proper PCIe ACS support in future products. I'm really hoping we can get this in during the 3.14 cycle. Thanks, Alex --- Alex Williamson (2): pci: Add device specific PCI ACS enable pci/quirks: Enable quirks for PCIe ACS on Intel PCH root ports drivers/pci/pci.c | 26 +++++- drivers/pci/quirks.c | 201 ++++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/pci.h | 2 3 files changed, 223 insertions(+), 6 deletions(-) -- 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/