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=-8.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 36DE9C433E0 for ; Wed, 20 Jan 2021 12:06:58 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (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 A44D22333D for ; Wed, 20 Jan 2021 12:06:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A44D22333D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 097E085F09; Wed, 20 Jan 2021 12:06:57 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bIM0CArF0jPh; Wed, 20 Jan 2021 12:06:54 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id 6B2F485EAE; Wed, 20 Jan 2021 12:06:54 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 56DB5C08A1; Wed, 20 Jan 2021 12:06:54 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id A09D0C013A for ; Wed, 20 Jan 2021 12:06:52 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 8D793869A4 for ; Wed, 20 Jan 2021 12:06:52 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id mryr-GOYWmve for ; Wed, 20 Jan 2021 12:06:51 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by whitealder.osuosl.org (Postfix) with ESMTPS id 7F100869A0 for ; Wed, 20 Jan 2021 12:06:51 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 8622E23339; Wed, 20 Jan 2021 12:06:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1611144411; bh=j6xaRuX/+evv50PTBz0NflcJzFpdcyGQgGYXKX0GS9A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=CXc3wAjB4TWuamYBWPQUOZY2c4omdr9uEBrlJ1ZRAb1uIqYqERIMbEER2O+u9VXsc l49aTSGH/h7oUCL9mjRd8xRWozhoXptttR4T2LWpE7AszGZpb0nTSFFfhNn1d+Pa0E 3ujn58JhypfXnCrpmIpbcBQyv3EP+VFhis6hj2Bc= Date: Wed, 20 Jan 2021 13:06:48 +0100 From: Greg KH To: David Woodhouse Subject: Re: [PATCH] iommu/vt-d: gracefully handle DMAR units with no supported address widths Message-ID: References: <549928db2de6532117f36c9c810373c14cf76f51.camel@infradead.org> <5414a3e3cdbd24ba707153584d13f06ed5dbba76.camel@infradead.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <5414a3e3cdbd24ba707153584d13f06ed5dbba76.camel@infradead.org> Cc: "Mendoza-jonas, Samuel" , "Sironi, Filippo" , stable@vger.kernel.org, iommu , Will Deacon X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Wed, Jan 20, 2021 at 09:42:43AM +0000, David Woodhouse wrote: > On Thu, 2020-09-24 at 15:08 +0100, David Woodhouse wrote: > > From: David Woodhouse > > > > Instead of bailing out completely, such a unit can still be used for > > interrupt remapping. > > > > Signed-off-by: David Woodhouse > > Could we have this for stable too please, along with the trivial > subsequent fixup. They are: > > c40aaaac1018 ("iommu/vt-d: Gracefully handle DMAR units with no supported address widths") > 9def3b1a07c4 ("iommu/vt-d: Don't dereference iommu_device if IOMMU_API is not built") > > They apply fairly straightforwardly when backported; let me know if you > want us to send patches. What stable kernel(s) do you want this in? The above patches are already in 5.10. thanks, greg k-h _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu