From patchwork Fri Oct 20 09:37:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Liu X-Patchwork-Id: 155939 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:2010:b0:403:3b70:6f57 with SMTP id fe16csp933757vqb; Fri, 20 Oct 2023 02:37:40 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFrRf4hfb9jlSFcg3ytcULKLdcnsQEjyhox/JtYkMj6DhWMjm2iVB0b0xixY+fxRQV+n98b X-Received: by 2002:a05:6870:4c16:b0:1ea:137:7dba with SMTP id pk22-20020a0568704c1600b001ea01377dbamr1586680oab.10.1697794660425; Fri, 20 Oct 2023 02:37:40 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1697794660; cv=none; d=google.com; s=arc-20160816; b=AQ31WsH0L4D/ELV4glWLtRd1bCIpTreQkL/Xv5uUGZAL9mS++CSZdRO4N86qOIZWHR 6uF/TMnKows0vsUAmZv8XTwEdhbXHLHeRrxawq/6nZbn7H6Gx4jfR+Eb+pUILRzVcmeC jwVWetI429UQUpIxSaIpTyNPVO1enlAIMQ0IR6lpWCu93DXLWQStoIOCQYG1UbllHj/d 5xcWZaEcb9cPX03DJqyPLOmnGlnKZ+xygVUPHFxUiAi1IVkowYjqsss1TshkKlDsCyuN 2TPiq7XwDLvB7SStdkgFfWefT5BKekPiOkbo8y08XRxA5X6BnPRUXKzZAwVSxScFcLkZ MWMQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=6OqXkCyGSYSQ/BKXxnqIltC7Hxh1qUl1ph1W/26KE/Y=; fh=AYfEg8UxxCZNlRHxnJWvHuqsheVQzM8ymhb/+J0VVdk=; b=LbkCLPLllgvYBaHxuklQIqPyoUpLqyUsOzarfb1MRTlAFKbnROA9Jfxi/azk9CwAtr qVR14wSzYzTHLHYkZrGIaRguzHimVNvRvL224E+MeF6oTa/knWCU8ysNTMMQvqSd/X9e TzjyC02Knbh8c+oITPaVyGGLRi8xQDFMyAb7ixhvlZO7ih+NZKqMbmRIiR4tFWRw8a+p LQY1s9FPvghkJmp7EihuxxX75t/8qi5UkXTjI8yWWIPRtbVMQL75BVgZOnv3lc33HY1n OPRr6fXmc3KubvDBCejKbGJSd1wmRKWmtDw6KLtrZGwUSXk+ohBsvinh4ySOAj8XgGiD FpCQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=e48LIvvG; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.35 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from groat.vger.email (groat.vger.email. [23.128.96.35]) by mx.google.com with ESMTPS id w8-20020a63f508000000b0059c36d79520si1509738pgh.772.2023.10.20.02.37.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Oct 2023 02:37:40 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.35 as permitted sender) client-ip=23.128.96.35; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=e48LIvvG; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.35 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by groat.vger.email (Postfix) with ESMTP id EFA568098FC9; Fri, 20 Oct 2023 02:37:36 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at groat.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1376752AbjJTJhZ (ORCPT + 25 others); Fri, 20 Oct 2023 05:37:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50608 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1376682AbjJTJhX (ORCPT ); Fri, 20 Oct 2023 05:37:23 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 04784D5A; Fri, 20 Oct 2023 02:37:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1697794642; x=1729330642; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=JijNHPfw4k1QRUj+k7XDRv8fLZZnJxP1OwX0xLP61vk=; b=e48LIvvGgQ0ED3HbrQBbx7TEImZM8k1jQ5lBwcndhrqOJIPqN0aMpfSG qiBS1Iur5XHHfkpUUtM95GqLeIISw/URgoGHRxUtX/BFjx+hb+UfKBxxI DMc5EeCV2+Ao5a8sToyGOUOQyt2BQlhmTQiaU1IGFViHPcpb0nzeEZaPI lIK49uYRq6DaDPvUsRaHt9uHazK/qsXDYEP6F2wCOapkETFGAGpD5jHln jjYKxXSyuRgxqhOsVMmBTpUbZX2eKpN2RhwmF86IkUdai46kFOflPJdLI vP1tGe7wxjFES6qqiLPBLMaDoFk/QuHXqZsA0fiTjW2f7fv3/QMXADnZc A==; X-IronPort-AV: E=McAfee;i="6600,9927,10868"; a="385341716" X-IronPort-AV: E=Sophos;i="6.03,238,1694761200"; d="scan'208";a="385341716" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Oct 2023 02:37:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10868"; a="707181304" X-IronPort-AV: E=Sophos;i="6.03,238,1694761200"; d="scan'208";a="707181304" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by orsmga003.jf.intel.com with ESMTP; 20 Oct 2023 02:37:20 -0700 From: Yi Liu To: joro@8bytes.org, alex.williamson@redhat.com, jgg@nvidia.com, kevin.tian@intel.com, robin.murphy@arm.com, baolu.lu@linux.intel.com Cc: cohuck@redhat.com, eric.auger@redhat.com, nicolinc@nvidia.com, kvm@vger.kernel.org, mjrosato@linux.ibm.com, chao.p.peng@linux.intel.com, yi.l.liu@intel.com, yi.y.sun@linux.intel.com, peterx@redhat.com, jasowang@redhat.com, shameerali.kolothum.thodi@huawei.com, lulu@redhat.com, suravee.suthikulpanit@amd.com, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, zhenzhong.duan@intel.com, joao.m.martins@oracle.com, xin.zeng@intel.com Subject: [PATCH v6 1/3] iommufd: Add data structure for Intel VT-d stage-1 cache invalidation Date: Fri, 20 Oct 2023 02:37:16 -0700 Message-Id: <20231020093719.18725-2-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231020093719.18725-1-yi.l.liu@intel.com> References: <20231020093719.18725-1-yi.l.liu@intel.com> MIME-Version: 1.0 X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on groat.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (groat.vger.email [0.0.0.0]); Fri, 20 Oct 2023 02:37:37 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1780266734065742588 X-GMAIL-MSGID: 1780266734065742588 This adds the data structure for flushing iotlb for the nested domain allocated with IOMMU_HWPT_DATA_VTD_S1 type. This only supports invalidating IOTLB, but no for device-TLB as device-TLB invalidation will be covered automatically in the IOTLB invalidation if the underlying IOMMU driver has enabled ATS for the affected device. Signed-off-by: Yi Liu --- include/uapi/linux/iommufd.h | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/include/uapi/linux/iommufd.h b/include/uapi/linux/iommufd.h index c8f523a7bc06..a910f67e344b 100644 --- a/include/uapi/linux/iommufd.h +++ b/include/uapi/linux/iommufd.h @@ -519,6 +519,42 @@ struct iommu_hw_info { }; #define IOMMU_GET_HW_INFO _IO(IOMMUFD_TYPE, IOMMUFD_CMD_GET_HW_INFO) +/** + * enum iommu_hwpt_vtd_s1_invalidate_flags - Flags for Intel VT-d + * stage-1 cache invalidation + * @IOMMU_VTD_INV_FLAGS_LEAF: The LEAF flag indicates whether only the + * leaf PTE caching needs to be invalidated + * and other paging structure caches can be + * preserved. + */ +enum iommu_hwpt_vtd_s1_invalidate_flags { + IOMMU_VTD_INV_FLAGS_LEAF = 1 << 0, +}; + +/** + * struct iommu_hwpt_vtd_s1_invalidate - Intel VT-d cache invalidation + * (IOMMU_HWPT_DATA_VTD_S1) + * @addr: The start address of the addresses to be invalidated. It needs + * to be 4KB aligned. + * @npages: Number of contiguous 4K pages to be invalidated. + * @flags: Combination of enum iommu_hwpt_vtd_s1_invalidate_flags + * @__reserved: Must be 0 + * + * The Intel VT-d specific invalidation data for user-managed stage-1 cache + * invalidation in nested translation. Userspace uses this structure to + * tell the impacted cache scope after modifying the stage-1 page table. + * + * Invalidating all the caches related to the page table by setting @addr + * to be 0 and @npages to be __aligned_u64(-1). This includes the + * corresponding device-TLB if ATS is enabled on the attached devices. + */ +struct iommu_hwpt_vtd_s1_invalidate { + __aligned_u64 addr; + __aligned_u64 npages; + __u32 flags; + __u32 __reserved; +}; + /** * struct iommu_hwpt_invalidate - ioctl(IOMMU_HWPT_INVALIDATE) * @size: sizeof(struct iommu_hwpt_invalidate) From patchwork Fri Oct 20 09:37:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Liu X-Patchwork-Id: 155940 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:2010:b0:403:3b70:6f57 with SMTP id fe16csp933895vqb; Fri, 20 Oct 2023 02:38:00 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFuE79jZsiya70K5ugk35qBZaYrrlLKQJLjgmU+udZCSnw5Z8iZZxMFAYLDf/TLDVcfBQUe X-Received: by 2002:a17:90a:34d:b0:27d:3c1a:3d2d with SMTP id 13-20020a17090a034d00b0027d3c1a3d2dmr1358310pjf.21.1697794680151; Fri, 20 Oct 2023 02:38:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1697794680; cv=none; d=google.com; s=arc-20160816; b=aZZ2AYYTPNdRZ4Y9cSnN5ZGiGSW8p+zrOnwIPYtQfWgEH/uR3BqE39LbBwzGbU5uOv DVaC98hNnkQ4uulCPwJE22dDkHMozXejXjpNbZFBF/MrAQtWzSCQPVSNRCpw6khcxS+F 6nPYrvjNNVwp91YaNlQdrSYZX/lCzBsUY3WePWieGyqxxMW006oJj5Msb1Ft9hG1zSPX SshQZ3j3TAltzJluRI2pnEGUrers68NuHGMRfyfUFnT9HMtgdPu3XvI9ZdZFHqWO4sbs twdAcpoa55uR2KALlre6tcUln6tUF+XmcqaQyQ9c6JH5S6YcaASF8ZqvM75zR6z/2a7I 8cUw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=5U8V1AsBeUOo755QOJaMVfUP7wG7Z2MQjY813rIY0cM=; fh=AYfEg8UxxCZNlRHxnJWvHuqsheVQzM8ymhb/+J0VVdk=; b=mjyg0L7AU4Ic7rmMSZ/z2MjTe5VP719f2+JK2pBUtfdDPzsnfujN7c0hqaksy6p3L7 mecliJdqtxzzhYMAjCZ2WnSb9q15VDkGVfaZHF/yPKCrz3CGu+3cW6W+M2NDtaJ7JeMy GsJ9IOJiIbsZWmIvHRJzZuSVWrFLSuETfPEMA5RRvhBM6ktFjtridJT/JQhAsu6BIWfB 4qCiQt339qwKUBy73XAq+/Dr3Jm10oaPc3qZUw/llVsPfOnPkkCpXQeE/3JFdvog7fxX 0HZ2oRoma5QlDDpk7fYr9o0xEw7zKkg2dhvtZLAo7icxYmDL++ROftpamOwi73sfzCSt dpdg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=kcsyj3Ir; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from pete.vger.email (pete.vger.email. [2620:137:e000::3:6]) by mx.google.com with ESMTPS id rs4-20020a17090b2b8400b0027767acebb4si1244977pjb.1.2023.10.20.02.37.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Oct 2023 02:38:00 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) client-ip=2620:137:e000::3:6; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=kcsyj3Ir; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by pete.vger.email (Postfix) with ESMTP id 72346823B3DF; Fri, 20 Oct 2023 02:37:57 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at pete.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1376797AbjJTJh3 (ORCPT + 25 others); Fri, 20 Oct 2023 05:37:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50624 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1376686AbjJTJhX (ORCPT ); Fri, 20 Oct 2023 05:37:23 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0B6EBD5B; Fri, 20 Oct 2023 02:37:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1697794642; x=1729330642; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=riP8bhy/mUKUAyTqB9Y6vwqhoUTajagOMubWqL1P/vI=; b=kcsyj3Ir8wvAWmSvO2Um7JD6G5OVPkGx+0MGSje8dBEFd1JLaiJFm0gy ybHmMseDIPwXD0P+LIVe4Bn5fc6zA0MirmoCCh/LzmxJQTjnT9a9AxAp0 7GOtrMsTcoBML+M6V0iW5OiMtcL+Dtm3E4D049gNEb61b5CPnjE7u4NQZ Hsa9nFQ0yDw72PmVwUSgSiHkzNiekTivnbknKmMZz9kliFoj2rYE53O1Y nZxWSXSS9MhhTNqk7jor28kf6GWrCr0M+7t+a+i0HFOP4q3zuIwIEo3wQ zNHvTY011ILZWWzCTu+LFofubt7W9CSkB8WKkY46NlzE3XYRv6i8ptdpw A==; X-IronPort-AV: E=McAfee;i="6600,9927,10868"; a="385341727" X-IronPort-AV: E=Sophos;i="6.03,238,1694761200"; d="scan'208";a="385341727" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Oct 2023 02:37:21 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10868"; a="707181307" X-IronPort-AV: E=Sophos;i="6.03,238,1694761200"; d="scan'208";a="707181307" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by orsmga003.jf.intel.com with ESMTP; 20 Oct 2023 02:37:21 -0700 From: Yi Liu To: joro@8bytes.org, alex.williamson@redhat.com, jgg@nvidia.com, kevin.tian@intel.com, robin.murphy@arm.com, baolu.lu@linux.intel.com Cc: cohuck@redhat.com, eric.auger@redhat.com, nicolinc@nvidia.com, kvm@vger.kernel.org, mjrosato@linux.ibm.com, chao.p.peng@linux.intel.com, yi.l.liu@intel.com, yi.y.sun@linux.intel.com, peterx@redhat.com, jasowang@redhat.com, shameerali.kolothum.thodi@huawei.com, lulu@redhat.com, suravee.suthikulpanit@amd.com, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, zhenzhong.duan@intel.com, joao.m.martins@oracle.com, xin.zeng@intel.com Subject: [PATCH v6 2/3] iommu/vt-d: Make iotlb flush helpers to be extern Date: Fri, 20 Oct 2023 02:37:17 -0700 Message-Id: <20231020093719.18725-3-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231020093719.18725-1-yi.l.liu@intel.com> References: <20231020093719.18725-1-yi.l.liu@intel.com> MIME-Version: 1.0 X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on pete.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (pete.vger.email [0.0.0.0]); Fri, 20 Oct 2023 02:37:57 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1780266754302809795 X-GMAIL-MSGID: 1780266754302809795 This makes the helpers visible to nested.c. Reviewed-by: Kevin Tian Signed-off-by: Yi Liu Reviewed-by: Lu Baolu --- drivers/iommu/intel/iommu.c | 10 +++++----- drivers/iommu/intel/iommu.h | 6 ++++++ 2 files changed, 11 insertions(+), 5 deletions(-) diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index a0341a069fbf..8f81a5c9fcc0 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -1511,10 +1511,10 @@ static void domain_flush_pasid_iotlb(struct intel_iommu *iommu, spin_unlock_irqrestore(&domain->lock, flags); } -static void iommu_flush_iotlb_psi(struct intel_iommu *iommu, - struct dmar_domain *domain, - unsigned long pfn, unsigned int pages, - int ih, int map) +void iommu_flush_iotlb_psi(struct intel_iommu *iommu, + struct dmar_domain *domain, + unsigned long pfn, unsigned int pages, + int ih, int map) { unsigned int aligned_pages = __roundup_pow_of_two(pages); unsigned int mask = ilog2(aligned_pages); @@ -1587,7 +1587,7 @@ static inline void __mapping_notify_one(struct intel_iommu *iommu, iommu_flush_write_buffer(iommu); } -static void intel_flush_iotlb_all(struct iommu_domain *domain) +void intel_flush_iotlb_all(struct iommu_domain *domain) { struct dmar_domain *dmar_domain = to_dmar_domain(domain); struct iommu_domain_info *info; diff --git a/drivers/iommu/intel/iommu.h b/drivers/iommu/intel/iommu.h index 0539a0f47557..b5f33a7c1973 100644 --- a/drivers/iommu/intel/iommu.h +++ b/drivers/iommu/intel/iommu.h @@ -867,6 +867,12 @@ void device_block_translation(struct device *dev); int prepare_domain_attach_device(struct iommu_domain *domain, struct device *dev); void domain_update_iommu_cap(struct dmar_domain *domain); +void iommu_flush_iotlb_psi(struct intel_iommu *iommu, + struct dmar_domain *domain, + unsigned long pfn, unsigned int pages, + int ih, int map); +void intel_flush_iotlb_all(struct iommu_domain *domain); + int dmar_ir_support(void); From patchwork Fri Oct 20 09:37:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Liu X-Patchwork-Id: 155941 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:2010:b0:403:3b70:6f57 with SMTP id fe16csp933904vqb; Fri, 20 Oct 2023 02:38:01 -0700 (PDT) X-Google-Smtp-Source: AGHT+IEBAeKGH+0ViM4cY0VRWmW0qzJveFMOAHMPU1Aub8m7xTWlMaJpcBM1+tcNuLMP37dRaZhW X-Received: by 2002:a05:6a00:1805:b0:693:3cbc:3d8e with SMTP id y5-20020a056a00180500b006933cbc3d8emr1448431pfa.0.1697794680981; Fri, 20 Oct 2023 02:38:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1697794680; cv=none; d=google.com; s=arc-20160816; b=RNu1xcjHOycDcsQhrOBOP68tGpgW6TW2rj7KB93WJXfRsOgywa3yLEFd15Ky1g95HF vnf9UC7B4HQyqd8sZ8oRqm0hiYbYhrgNSSNa0Kj1Suvt4K9oURQcP533+pXeQjgVkRow 4jLZqyD+jtZ12m4mcHpbU1N7LDMf90Meuix34o/Yl1pcCj49CXhlsdX9CwIhydSUIw/6 0pUk6tK4pfOHpsBKU65vxQcwsu/OGDA3RIFYs4gE2Bdgj7E8aCB2L8/kVqGindC+gZ8r 3CsVDD9kE6ZpkxabWksrPbE6GyEs2TfHuWXyi/hNZlh3f9w54kK/Oy2hH+xkqPr0kFsH zBBQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=3acWKDaQE4leKhDVZiRVJjQYFOEbZrLlETgAaSBbk0w=; fh=AYfEg8UxxCZNlRHxnJWvHuqsheVQzM8ymhb/+J0VVdk=; b=iC/fqTc52LFK3QQ8g2K9M74Gx+DyxbDRlQoTL/PEWQyAtXId/lfFl7WCCAyekKFdge xZHe2mNfMo7/HUdykP4hrK3JqOr5Qajgf5QvGo2p4KQ3oHuSfaXWCaB85jnP/x6eV+EZ BRf/lJ63Jks4jcuxjrDZGiOVBSP9+pnKQZMk99A6kkYYjKkQ24a9SSVAORY411Xbx4MW TXdZhH0y7GRFzZAmomNmgxfloQB67IGu8uZSrKHrIpnohuhgckLAQQikkIXSQ2zzRtFL XDLylgjiX3SxpsVPVaZWjDFdkDiK2ncxfYCpBiMw85DZgkc15XCjMgk9k8Qz5a0armJa UZIw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=czVygEqH; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.35 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from groat.vger.email (groat.vger.email. [23.128.96.35]) by mx.google.com with ESMTPS id v191-20020a6389c8000000b005774d2f4ab5si1448838pgd.807.2023.10.20.02.38.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Oct 2023 02:38:00 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.35 as permitted sender) client-ip=23.128.96.35; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=czVygEqH; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.35 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by groat.vger.email (Postfix) with ESMTP id 7F1FE82F3045; Fri, 20 Oct 2023 02:37:58 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at groat.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1376820AbjJTJhd (ORCPT + 25 others); Fri, 20 Oct 2023 05:37:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50630 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1376706AbjJTJhY (ORCPT ); Fri, 20 Oct 2023 05:37:24 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ED523D49; Fri, 20 Oct 2023 02:37:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1697794642; x=1729330642; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=eIzGLY3NTvO8QdhVNwrnfazybXL/lUWimvex+9KJLiU=; b=czVygEqHgZkgzF7RaypOoRmHOMeW7tIBWHkdmlUyaf8tY9tuVY7I6AHp vvl0vUFEcMmgKCPsMjUn3vRUaCNhbrdc+KgA6TQtdBV8DObGt/pRRsHVF g4CeS7UySR6+PBxejt8vtTkabGjhgs4rOtBqvEJOFkSn0+h0yxi27P5Xr ndoPHE3oaCGzgRIvm5fzdRcUY+tLbO928OaGGoAl484FoGuTrdr1pftFq 7Zoz8hnbCCpzeyQKWine3nrW1yZIxG1q75b5YwpSuFWS6WnxQG7HqXbav kiuD/eOZDxOX0E0Zvx2GMy+3J20zR/EOaCC7vNY9FC6piLAPgsWtloR6P w==; X-IronPort-AV: E=McAfee;i="6600,9927,10868"; a="385341738" X-IronPort-AV: E=Sophos;i="6.03,238,1694761200"; d="scan'208";a="385341738" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Oct 2023 02:37:22 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10868"; a="707181310" X-IronPort-AV: E=Sophos;i="6.03,238,1694761200"; d="scan'208";a="707181310" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by orsmga003.jf.intel.com with ESMTP; 20 Oct 2023 02:37:22 -0700 From: Yi Liu To: joro@8bytes.org, alex.williamson@redhat.com, jgg@nvidia.com, kevin.tian@intel.com, robin.murphy@arm.com, baolu.lu@linux.intel.com Cc: cohuck@redhat.com, eric.auger@redhat.com, nicolinc@nvidia.com, kvm@vger.kernel.org, mjrosato@linux.ibm.com, chao.p.peng@linux.intel.com, yi.l.liu@intel.com, yi.y.sun@linux.intel.com, peterx@redhat.com, jasowang@redhat.com, shameerali.kolothum.thodi@huawei.com, lulu@redhat.com, suravee.suthikulpanit@amd.com, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, zhenzhong.duan@intel.com, joao.m.martins@oracle.com, xin.zeng@intel.com Subject: [PATCH v6 3/3] iommu/vt-d: Add iotlb flush for nested domain Date: Fri, 20 Oct 2023 02:37:18 -0700 Message-Id: <20231020093719.18725-4-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231020093719.18725-1-yi.l.liu@intel.com> References: <20231020093719.18725-1-yi.l.liu@intel.com> MIME-Version: 1.0 X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on groat.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (groat.vger.email [0.0.0.0]); Fri, 20 Oct 2023 02:37:58 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1780266755297755525 X-GMAIL-MSGID: 1780266755297755525 This implements the .cache_invalidate_user() callback to support iotlb flush for nested domain. Signed-off-by: Lu Baolu Signed-off-by: Yi Liu --- drivers/iommu/intel/nested.c | 54 ++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) diff --git a/drivers/iommu/intel/nested.c b/drivers/iommu/intel/nested.c index 19538fb616db..ef8fe53c33ef 100644 --- a/drivers/iommu/intel/nested.c +++ b/drivers/iommu/intel/nested.c @@ -73,9 +73,63 @@ static void intel_nested_domain_free(struct iommu_domain *domain) kfree(to_dmar_domain(domain)); } +static void domain_flush_iotlb_psi(struct dmar_domain *domain, + u64 addr, unsigned long npages) +{ + struct iommu_domain_info *info; + unsigned long i; + + xa_for_each(&domain->iommu_array, i, info) + iommu_flush_iotlb_psi(info->iommu, domain, + addr >> VTD_PAGE_SHIFT, npages, 1, 0); +} + +static int intel_nested_cache_invalidate_user(struct iommu_domain *domain, + struct iommu_user_data_array *array, + u32 *cerror_idx) +{ + struct dmar_domain *dmar_domain = to_dmar_domain(domain); + struct iommu_hwpt_vtd_s1_invalidate inv_info; + u32 index; + int ret; + + /* REVISIT: + * VT-d has defined ITE, ICE, IQE for invalidation failure per hardware, + * but no error code yet, so just set the error code to be 0. + */ + *cerror_idx = 0; + + for (index = 0; index < array->entry_num; index++) { + ret = iommu_copy_struct_from_user_array(&inv_info, array, + IOMMU_HWPT_DATA_VTD_S1, + index, __reserved); + if (ret) { + pr_err_ratelimited("Failed to fetch invalidation request\n"); + break; + } + + if (inv_info.__reserved || (inv_info.flags & ~IOMMU_VTD_INV_FLAGS_LEAF) || + !IS_ALIGNED(inv_info.addr, VTD_PAGE_SIZE)) { + ret = -EINVAL; + break; + } + + if (inv_info.addr == 0 && inv_info.npages == -1) + intel_flush_iotlb_all(domain); + else + domain_flush_iotlb_psi(dmar_domain, + inv_info.addr, inv_info.npages); + } + + array->entry_num = index; + + return ret; +} + static const struct iommu_domain_ops intel_nested_domain_ops = { .attach_dev = intel_nested_attach_dev, .free = intel_nested_domain_free, + .cache_invalidate_user = intel_nested_cache_invalidate_user, }; struct iommu_domain *intel_nested_domain_alloc(struct iommu_domain *s2_domain,