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=-7.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 3BB91CA9ED9 for ; Tue, 5 Nov 2019 08:02:36 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (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 6A7A120869 for ; Tue, 5 Nov 2019 08:02:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=xenosoft.de header.i=@xenosoft.de header.b="G15Xd9kQ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6A7A120869 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xenosoft.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 30C5D10BB; Tue, 5 Nov 2019 08:02:35 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 7C1761075 for ; Tue, 5 Nov 2019 08:02:33 +0000 (UTC) X-Greylist: delayed 00:05:57 by SQLgrey-1.7.6 Received: from mo4-p02-ob.smtp.rzone.de (mo4-p02-ob.smtp.rzone.de [85.215.255.84]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 4959227B for ; Tue, 5 Nov 2019 08:02:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1572940950; s=strato-dkim-0002; d=xenosoft.de; h=In-Reply-To:Date:Message-ID:References:To:From:Subject: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=lkzbMGkHWur9AlJl2ovp2V95ZZOPOfTo0f2kTkXCsE0=; b=G15Xd9kQ2m1lIS1LFU1zi6ayTtNxcQ5LT4yFu3RtAlacdSxyO9mLTxrvlbGKYyyH4W aN/wNASVOO36U5cskhc6cpeigy//jS5SvH4t50Job9ntYotd5Df/y65Z0kcFZR+I7X4N Ngs39x1O+g+oxSLP5v5gCqZNuBnSibIk4ZiJQqB7j6Wj9X1A1m6ZY5OQBjJfcFz8qmbG tU8W+XZJriulpWu7yIMarQ3szaJiMz1oBP/dVzGFAbbamLaxAi46SGKSIOEpu3mUSYJA max1NmI8ugahtfcajMlrz75yZTig5AJEKSvKKdrxCtjtVe8YhUcTgVAUSoEjzh10ukTJ H3rA== X-RZG-AUTH: ":L2QefEenb+UdBJSdRCXu93KJ1bmSGnhMdmOod1DhGM4l4Hio94KKxRySfLxnHfJ+Dkjp5DdBJSrwuuqxvPhXL9XuxvA4F2rcIKuJAVhUjF3LQQ==" X-RZG-CLASS-ID: mo00 Received: from [IPv6:2a02:8109:89c0:ebfc:49a6:a8ac:11b0:71e8] by smtp.strato.de (RZmta 44.29.0 AUTH) with ESMTPSA id q007c8vA57uRiD4 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (curve secp521r1 with 521 ECDH bits, eq. 15360 bits RSA)) (Client did not present a certificate); Tue, 5 Nov 2019 08:56:27 +0100 (CET) Subject: Bug 205201 - overflow of DMA mask and bus mask From: Christian Zigotzky To: Christoph Hellwig , linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, iommu@lists.linux-foundation.org, Olof Johansson References: <2242B4B2-6311-492E-BFF9-6740E36EC6D4@xenosoft.de> <84558d7f-5a7f-5219-0c3a-045e6b4c494f@xenosoft.de> <20181213091021.GA2106@lst.de> <835bd119-081e-a5ea-1899-189d439c83d6@xenosoft.de> <76bc684a-b4d2-1d26-f18d-f5c9ba65978c@xenosoft.de> <20181213112511.GA4574@lst.de> <008c981e-bdd2-21a7-f5f7-c57e4850ae9a@xenosoft.de> <20190103073622.GA24323@lst.de> <71A251A5-FA06-4019-B324-7AED32F7B714@xenosoft.de> <1b0c5c21-2761-d3a3-651b-3687bb6ae694@xenosoft.de> <3504ee70-02de-049e-6402-2d530bf55a84@xenosoft.de> Message-ID: <46025f1b-db20-ac23-7dcd-10bc43bbb6ee@xenosoft.de> Date: Tue, 5 Nov 2019 08:56:27 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <3504ee70-02de-049e-6402-2d530bf55a84@xenosoft.de> Content-Language: de-DE X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org SGkgQWxsLAoKV2Ugc3RpbGwgaGF2ZSBETUEgcHJvYmxlbXMgd2l0aCBzb21lIFBDSSBkZXZpY2Vz LiBTaW5jZSB0aGUgUG93ZXJQQyAKdXBkYXRlcyA0LjIxLTEgWzFdIHdlIG5lZWQgdG8gZGVjcmVh c2UgdGhlIFJBTSB0byAzNTAwTUIgKG1lbT0zNTAwTSkgaWYgCndlIHdhbnQgdG8gd29yayB3aXRo IG91ciBQQ0kgZGV2aWNlcy4gVGhlIEZTTCBQNTAyMCBhbmQgUDUwNDAgaGF2ZSB0aGVzZSAKcHJv YmxlbXMgY3VycmVudGx5LgoKRXJyb3IgbWVzc2FnZToKClvCoMKgIDI1LjY1NDg1Ml0gYnR0diAx MDAwOjA0OjA1LjA6IG92ZXJmbG93IDB4MDAwMDAwMDBmZTA3NzAwMCs0MDk2IG9mIApETUEgbWFz ayBmZmZmZmZmZiBidXMgbWFzayBkZjAwMDAwMAoKQWxsIDUueCBMaW51eCBrZXJuZWxzIGNhbid0 IGluaXRpYWxpemUgYSBTQ1NJIFBDSSBjYXJkIGFueW1vcmUgc28gCmJvb3Rpbmcgb2YgYSBMaW51 eCB1c2VybGFuZCBpc24ndCBwb3NzaWJsZS4KClBMRUFTRSBjaGVjayB0aGUgRE1BIGNoYW5nZXMg aW4gdGhlIFBvd2VyUEMgdXBkYXRlcyA0LjIxLTEgWzFdLiBUaGUgCmtlcm5lbCA0LjIwIHdvcmtz IHdpdGggYWxsIFBDSSBkZXZpY2VzIHdpdGhvdXQgbGltaXRhdGlvbiBvZiBSQU0uCgpXZSBjcmVh dGVkIGEgYnVnIHJlcG9ydCBhIG1vbnRoIGFnby4gWzJdCgpUaGFua3MsCkNocmlzdGlhbgoKWzFd IApodHRwczovL2dpdC5rZXJuZWwub3JnL3B1Yi9zY20vbGludXgva2VybmVsL2dpdC90b3J2YWxk cy9saW51eC5naXQvY29tbWl0Lz9pZD04ZDY5NzMzMjdlZTg0YzJmNDBkZDllZmQ4OTI4ZDRhMTE4 NmM5NmUyClsyXSBodHRwczovL2J1Z3ppbGxhLmtlcm5lbC5vcmcvc2hvd19idWcuY2dpP2lkPTIw NTIwMQoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmlv bW11IG1haWxpbmcgbGlzdAppb21tdUBsaXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZwpodHRwczov L2xpc3RzLmxpbnV4Zm91bmRhdGlvbi5vcmcvbWFpbG1hbi9saXN0aW5mby9pb21tdQ==