From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D2D41C4332D for ; Fri, 20 Mar 2020 13:57:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A487E20709 for ; Fri, 20 Mar 2020 13:57:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727223AbgCTN5r (ORCPT ); Fri, 20 Mar 2020 09:57:47 -0400 Received: from mga18.intel.com ([134.134.136.126]:62279 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726801AbgCTN5r (ORCPT ); Fri, 20 Mar 2020 09:57:47 -0400 IronPort-SDR: IJRgNLPotou0Gba/aY1v1Et2JT86bcIyotQh6j7iC7lEhIFIW8ru1/fdapY2ahbFXCvI42/g/L 1kz7tPNwQH/w== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Mar 2020 06:57:46 -0700 IronPort-SDR: yvjBrOOURHBM8gKE88ZBhZ2rJoI18IPpRiP27yzmUiPEWVEgOAj16RYPXYrxFI+vXBm/9akVmd rIZ7tv9WassQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.72,284,1580803200"; d="scan'208";a="237235659" Received: from che5-mobl.ccr.corp.intel.com (HELO [10.254.213.15]) ([10.254.213.15]) by fmsmga007.fm.intel.com with ESMTP; 20 Mar 2020 06:57:44 -0700 Cc: baolu.lu@linux.intel.com, Raj Ashok , Yi Liu Subject: Re: [PATCH 3/3] iommu/vt-d: Add build dependency on IOASID To: Jacob Pan , LKML , iommu@lists.linux-foundation.org, Joerg Roedel , David Woodhouse References: <1584678751-43169-1-git-send-email-jacob.jun.pan@linux.intel.com> <1584678751-43169-4-git-send-email-jacob.jun.pan@linux.intel.com> From: Lu Baolu Message-ID: <2f2b5c45-552f-1399-ad7d-0c460ab783f4@linux.intel.com> Date: Fri, 20 Mar 2020 21:57:43 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <1584678751-43169-4-git-send-email-jacob.jun.pan@linux.intel.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020/3/20 12:32, Jacob Pan wrote: > IOASID code is needed by VT-d scalable mode for PASID allocation. > Add explicit dependency such that IOASID is built-in whenever Intel > IOMMU is enabled. > Otherwise, aux domain code will fail when IOMMU is built-in and IOASID > is compiled as a module. > > Signed-off-by: Jacob Pan Fixes: 59a623374dc38 ("iommu/vt-d: Replace Intel specific PASID allocator with IOASID") Acked-by: Lu Baolu Best regards, baolu > --- > drivers/iommu/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig > index d2fade984999..25149544d57c 100644 > --- a/drivers/iommu/Kconfig > +++ b/drivers/iommu/Kconfig > @@ -188,6 +188,7 @@ config INTEL_IOMMU > select NEED_DMA_MAP_STATE > select DMAR_TABLE > select SWIOTLB > + select IOASID > help > DMA remapping (DMAR) devices support enables independent address > translations for Direct Memory Access (DMA) from devices. >