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=-12.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 1F1C5C433E1 for ; Sat, 22 Aug 2020 04:29:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F1D3D207CD for ; Sat, 22 Aug 2020 04:29:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="R53OrZZW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727012AbgHVE3N (ORCPT ); Sat, 22 Aug 2020 00:29:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60882 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726086AbgHVE2g (ORCPT ); Sat, 22 Aug 2020 00:28:36 -0400 Received: from mail-pl1-x643.google.com (mail-pl1-x643.google.com [IPv6:2607:f8b0:4864:20::643]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 19E17C061575 for ; Fri, 21 Aug 2020 21:28:36 -0700 (PDT) Received: by mail-pl1-x643.google.com with SMTP id t11so1792157plr.5 for ; Fri, 21 Aug 2020 21:28:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=dtHtIWl6J8kIFWKXyZWws3NaZY5n+Lcb3UuZs+GuLv4=; b=R53OrZZWGDIlIq1se/YzOjwMVMXn4r1O33D1gHWELFMDJddknNzoTdyoDOZjJxRSC+ 0BA8PkFUN5wcjq4ZPW5+yV9S8gKYo17gG6reRRjvQ+HdSiL+Fe/hRBEMvq+AYQqzch91 RABhbEfIDTyk7Bl0wqiPe1T1elJOPCYEyrq8dIhksxYbFMj54FFIFs1+/EfoUXZ3LfQ3 birdcw54W2pRGqRm7F5VKjAfUxvS58PKB7NuWisieG/zBgiqlFHOri9AMan2sSUFs0oL Pq/VUxGQxAWQxKtVlHaFrONvuBcCPxZ/3pkXFse6GnPCcTuwJLVop4SWI1qibS4eth2B eXXA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=dtHtIWl6J8kIFWKXyZWws3NaZY5n+Lcb3UuZs+GuLv4=; b=M6VlEgJS2ZQ3QawI3+VCpS0tWqdxAyE83vzW4TO/9xO9E5+jByXzLBrFerRmztFqIw mJtvgthug2fwkO8lq5L8ZhUlBsUl8W2ZgvT+4ZyFPslnaT0+es1JJ10u0qViIRAn9jMl 3KzuE6HI/Pj6ZgwTI7O2UeO+2vTCGrMU11oQXQLh75WIbs1eAXXwdP0AMrz6N+YDIYwU K4FmtSesk0QeIlNnDiptxUbVo7pU1OB0iC2IJJzEM7Nwa4O870R+6WtR3mOTOWCMz5Ju p0c7eBpfT7nI6ysSVcgywrrWr8t3PdD6DFoZUua/H4PPYk2pfUWOiKbWDkNvdzJh+NTW tHLA== X-Gm-Message-State: AOAM531tKDJeATPFs3csaNcaeGPZM+8+DpiIXlnIRo/kdbPXfI0vgMtY 1YnDOjHl8PNvWLLaHE/+WPo= X-Google-Smtp-Source: ABdhPJw20iJdex84y+BAqAEu6iBpS8k4sg6GOf+cwWHA6VnqRrDPHBAvJkMquof+YQNxHnXJtXlhmA== X-Received: by 2002:a17:90b:4397:: with SMTP id in23mr4651060pjb.102.1598070515318; Fri, 21 Aug 2020 21:28:35 -0700 (PDT) Received: from jacob-builder.jf.intel.com ([192.55.55.43]) by smtp.gmail.com with ESMTPSA id q5sm3341582pgi.31.2020.08.21.21.28.34 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 21 Aug 2020 21:28:34 -0700 (PDT) From: Jacob Pan X-Google-Original-From: Jacob Pan To: iommu@lists.linux-foundation.org, LKML , Jean-Philippe Brucker , "Lu Baolu" , Joerg Roedel , David Woodhouse Cc: Yi Liu , "Tian, Kevin" , Raj Ashok , Eric Auger , Wu Hao Subject: [PATCH v2 9/9] iommu/vt-d: Store guest PASID during bind Date: Fri, 21 Aug 2020 21:35:18 -0700 Message-Id: <1598070918-21321-10-git-send-email-jacob.jun.pan@linux.intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1598070918-21321-1-git-send-email-jacob.jun.pan@linux.intel.com> References: <1598070918-21321-1-git-send-email-jacob.jun.pan@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org IOASID core maintains the guest-host mapping in the form of SPID and IOASID. This patch assigns the guest PASID (if valid) as SPID while binding guest page table with a host PASID. This mapping will be used for lookup and notifications. Signed-off-by: Jacob Pan --- drivers/iommu/intel/svm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c index d8a5efa75095..4c958b1aec4c 100644 --- a/drivers/iommu/intel/svm.c +++ b/drivers/iommu/intel/svm.c @@ -406,6 +406,7 @@ int intel_svm_bind_gpasid(struct iommu_domain *domain, struct device *dev, if (data->flags & IOMMU_SVA_GPASID_VAL) { svm->gpasid = data->gpasid; svm->flags |= SVM_FLAG_GUEST_PASID; + ioasid_attach_spid(data->hpasid, data->gpasid); } svm->iommu = iommu; /* @@ -517,6 +518,7 @@ int intel_svm_unbind_gpasid(struct device *dev, int pasid) ioasid_attach_data(pasid, NULL); ioasid_notify(pasid, IOASID_UNBIND, IOASID_NOTIFY_SET); + ioasid_attach_spid(pasid, INVALID_IOASID); kfree(svm); } } -- 2.7.4