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=-3.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT 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 CFE96C4321D for ; Fri, 24 Aug 2018 03:00:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8987321570 for ; Fri, 24 Aug 2018 03:00:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8987321570 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727524AbeHXGco (ORCPT ); Fri, 24 Aug 2018 02:32:44 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:43052 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726458AbeHXGcn (ORCPT ); Fri, 24 Aug 2018 02:32:43 -0400 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w7O2ws8b126407 for ; Thu, 23 Aug 2018 23:00:07 -0400 Received: from e13.ny.us.ibm.com (e13.ny.us.ibm.com [129.33.205.203]) by mx0b-001b2d01.pphosted.com with ESMTP id 2m26g75vxp-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 23 Aug 2018 23:00:07 -0400 Received: from localhost by e13.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 23 Aug 2018 23:00:07 -0400 Received: from b01cxnp22033.gho.pok.ibm.com (9.57.198.23) by e13.ny.us.ibm.com (146.89.104.200) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Thu, 23 Aug 2018 23:00:03 -0400 Received: from b01ledav005.gho.pok.ibm.com (b01ledav005.gho.pok.ibm.com [9.57.199.110]) by b01cxnp22033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w7O301eI28704906 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 24 Aug 2018 03:00:01 GMT Received: from b01ledav005.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1BC9BAE06A; Thu, 23 Aug 2018 22:59:33 -0400 (EDT) Received: from b01ledav005.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2F6A8AE05C; Thu, 23 Aug 2018 22:59:30 -0400 (EDT) Received: from morokweng.localdomain.com (unknown [9.85.189.29]) by b01ledav005.gho.pok.ibm.com (Postfix) with ESMTP; Thu, 23 Aug 2018 22:59:29 -0400 (EDT) From: Thiago Jung Bauermann To: linuxppc-dev@lists.ozlabs.org Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Alexey Kardashevskiy , Anshuman Khandual , Benjamin Herrenschmidt , Christoph Hellwig , Michael Ellerman , Mike Anderson , Paul Mackerras , Ram Pai , Anshuman Khandual , Thiago Jung Bauermann Subject: [RFC PATCH 02/11] powerpc/svm: Select CONFIG_DMA_DIRECT_OPS and CONFIG_SWIOTLB Date: Thu, 23 Aug 2018 23:59:24 -0300 X-Mailer: git-send-email 2.14.4 In-Reply-To: <20180824025933.24319-1-bauerman@linux.ibm.com> References: <20180824025933.24319-1-bauerman@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18082403-0064-0000-0000-000003411B31 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009600; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000266; SDB=6.01077964; UDB=6.00555823; IPR=6.00857939; MB=3.00022897; MTD=3.00000008; XFM=3.00000015; UTC=2018-08-24 03:00:05 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18082403-0065-0000-0000-00003A687610 Message-Id: <20180824025933.24319-3-bauerman@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-08-24_01:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=756 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1808240029 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Anshuman Khandual Ultravisor based secure guest platforms will use generic SWIOTLB DMA API (i.e swiotlb_dma_ops structure) available under the CONFIG_DMA_DIRECT_OPS config. Also base CONFIG_SWIOTLB needs to be explicitly selected as well. Select both these config options on powerpc server platforms with secure guest support. Signed-off-by: Anshuman Khandual Signed-off-by: Thiago Jung Bauermann --- arch/powerpc/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index f786c962edf0..90f73d15f58a 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -444,6 +444,8 @@ config PPC_SVM bool "Secure virtual machine (SVM) support for POWERPC" default n depends on PPC_PSERIES + select DMA_DIRECT_OPS + select SWIOTLB help Support secure guests on POWERPC. There are certain POWER platforms which support secure guests with the help of an Ultravisor executing