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=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,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 3ABF1C433E6 for ; Wed, 17 Feb 2021 14:25:29 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DC16164DE0 for ; Wed, 17 Feb 2021 14:25:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DC16164DE0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xen.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.86282.161859 (Exim 4.92) (envelope-from ) id 1lCNlN-0005Js-HQ; Wed, 17 Feb 2021 14:25:09 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 86282.161859; Wed, 17 Feb 2021 14:25:09 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lCNlN-0005Jl-EQ; Wed, 17 Feb 2021 14:25:09 +0000 Received: by outflank-mailman (input) for mailman id 86282; Wed, 17 Feb 2021 14:25:08 +0000 Received: from mail.xenproject.org ([104.130.215.37]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lCNlL-0005JR-TG for xen-devel@lists.xenproject.org; Wed, 17 Feb 2021 14:25:07 +0000 Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lCNlI-0004eP-Gy; Wed, 17 Feb 2021 14:25:04 +0000 Received: from 54-240-197-235.amazon.com ([54.240.197.235] helo=ufe34d9ed68d054.ant.amazon.com) by xenbits.xenproject.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lCNlI-00057m-58; Wed, 17 Feb 2021 14:25:04 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=xen.org; s=20200302mail; h=Message-Id:Date:Subject:Cc:To:From; bh=ZmVFimIAQ1oAEuVpblWKPooP062mJ9LJUPpU+7TXU8A=; b=MQMzPDIzMHLhMJ9HqUd6HvPP7U DE6DTLxnzzpX6zYovY4qsA0Uk2Fva/LTTQujD8KUOpGqorneYe3kYiNqzogIuRHQd9DljUntB2qZP HOgs+wp/crzg1jRNTRaz2YDg1e9in6WSOHgKiuT9bWO7KS+WbVdCKuO2wHUn2kssCZEg=; From: Julien Grall To: xen-devel@lists.xenproject.org Cc: hongyxia@amazon.co.uk, iwj@xenproject.org, Julien Grall , Jan Beulich , Andrew Cooper , Kevin Tian , Paul Durrant Subject: [for-4.15][PATCH v3 0/3] xen/iommu: Collection of bug fixes for IOMMU teadorwn Date: Wed, 17 Feb 2021 14:24:55 +0000 Message-Id: <20210217142458.3769-1-julien@xen.org> X-Mailer: git-send-email 2.17.1 From: Julien Grall Hi all, This series is a collection of bug fixes for the IOMMU teardown code. All of them are candidate for 4.15 as they can either leak memory or lead to host crash/host corruption. This is sent directly on xen-devel because all the issues were either introduced in 4.15 or happen in the domain creation code. Major changes since v2: - patch #1 "xen/x86: p2m: Don't map the special pages in the IOMMU page-tables" has been removed. This requires Jan's patch [2] to fully mitigate memory leaks. Cheers, [1] https://lore.kernel.org/xen-devel/1b6a411b-84e7-bfb1-647e-511a13df838c@suse.com Julien Grall (3): xen/iommu: x86: Clear the root page-table before freeing the page-tables xen/x86: iommu: Ignore IOMMU mapping requests when a domain is dying xen/iommu: x86: Harden the IOMMU page-table allocator xen/drivers/passthrough/amd/iommu_map.c | 13 ++++++ xen/drivers/passthrough/amd/pci_amd_iommu.c | 12 +++++- xen/drivers/passthrough/vtd/iommu.c | 25 +++++++++++- xen/drivers/passthrough/x86/iommu.c | 45 ++++++++++++++++++++- xen/include/xen/iommu.h | 1 + 5 files changed, 93 insertions(+), 3 deletions(-) -- 2.17.1