From patchwork Mon Feb 1 14:29:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrea Righi X-Patchwork-Id: 1434160 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.ubuntu.com (client-ip=91.189.94.19; helo=huckleberry.canonical.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=) Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4DTr1P0YRYz9tkp; Tue, 2 Feb 2021 01:29:27 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1l6aCe-0004jp-7O; Mon, 01 Feb 2021 14:29:20 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by huckleberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1l6aCZ-0004hg-Gk for kernel-team@lists.ubuntu.com; Mon, 01 Feb 2021 14:29:15 +0000 Received: from mail-wr1-f71.google.com ([209.85.221.71]) by youngberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1l6aCZ-0001Lw-6M for kernel-team@lists.ubuntu.com; Mon, 01 Feb 2021 14:29:15 +0000 Received: by mail-wr1-f71.google.com with SMTP id w3so10430499wrm.22 for ; Mon, 01 Feb 2021 06:29:15 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=NwJTYlfqaHw8gx83/KwAVRwt9JqGjOGJH5R5a/gSAs8=; b=TqMyXjR6rz7iE9XzQ2ETlnaIHfVVWfdcfqJ3/Enkp5kliKrPExChiF7UIpvTcrtNJ/ 0nA781zh+kLkkywTCqYLQgmlfYPT8ht3DE+h/x3BxiBXJDFsKI7QnxbsqNAgSTf3J20i oYt2lwFToJDr4JiWVFVOqFde0FSDVxKnyQ0pEYPE00DW5V73skP5/a5l03KQHD3MjPNa f5ynAcXTKSulbDN6KZpCBt5jrmQAy0n4O87JfKSLQKHv0cnd1dumPmglMq9cgOd7aBJJ GrvbGvnPSt1sjHpqLtN7HpaYqZi8eeWSGSh651Jp03U5gtiSssIugCqT0vq9KV4Ift5j 0Prg== X-Gm-Message-State: AOAM531KWEY0rwvA3v2DbEDNQHHNooz03hClPBAsLBh0Bvz1Pw870Hiu Ocz9cVCaZYSoC1eaIbjghVR6W71h4iTO95iBdJBsYpQ2+nEqwQ203s8HAfzwzNE1Z+4MY7s0NWu TxAopUvWiyi2vVq0llZBXo6SUn3CmiW7ASg0JTvjrug== X-Received: by 2002:a1c:d7:: with SMTP id 206mr6222710wma.68.1612189754658; Mon, 01 Feb 2021 06:29:14 -0800 (PST) X-Google-Smtp-Source: ABdhPJwizB6N9EPgh4yAR+KRRiOG+mbg3y6SPxxLxQeUK2B3K+M10JCIk6eBRBsmqXLauXyLYaZwvA== X-Received: by 2002:a1c:d7:: with SMTP id 206mr6222689wma.68.1612189754343; Mon, 01 Feb 2021 06:29:14 -0800 (PST) Received: from xps-13-7390.homenet.telecomitalia.it (host-95-234-131-144.retail.telecomitalia.it. [95.234.131.144]) by smtp.gmail.com with ESMTPSA id o9sm28118295wrw.81.2021.02.01.06.29.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Feb 2021 06:29:13 -0800 (PST) From: Andrea Righi To: kernel-team@lists.ubuntu.com Subject: [SRU][PATCH v2 0/1][G/aws, F/aws, B/aws, X/aws] aws: properly Date: Mon, 1 Feb 2021 15:29:04 +0100 Message-Id: <20210201142907.310728-1-andrea.righi@canonical.com> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" BugLink: https://bugs.launchpad.net/bugs/1913739 [Impact] To properly support instance types in AWS with > 255 cores we need to make sure that commit c40aaaac1018ff1382f2d35df5129a6bcea3df6b ("iommu/vt-d: Gracefully handle DMAR units with no supported address widths") is applied across all our linux-aws kernels. [Test Case] Tests performed by AWS. [Fix] Apply/backport commit c40aaaac1018ff1382f2d35df5129a6bcea3df6b. [Regression potential] The fix is affecting only intel IOMMU and it is an upstream fix, so the regression potential should be minimal. Changes v1 -> v2: - include patches for G/aws and X/aws Acked-by: Kamal Mostafa Acked-by: Stefan Bader