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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B0B96C001DB for ; Fri, 4 Aug 2023 11:20:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:In-Reply-To: Date:From:Cc:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:References: List-Owner; bh=HrW/GK0Ag8tIWMkm1p6P+cSdbZTNvL/lYrFfqiNI0PY=; b=MXSJeKp/9JqkzA MG4UiD2DhSRdcZCJFeNr328N5bpcxR4HbSWSqJVpdQDITV/3fUctWrQddH3VEtc5nxoRoSW/OnBt4 XpJKFTf7d3s45BgmOqrkLFHZR2GHSrbwSr9BgY9uBV4YFxm7D7pLjyH+dUInnA/Vy9bqfmGaAE3PO CFW5IKyatJT3JJqowcLAtebeHwPkoK6OQeHi7dmLv5d6GJJ6bJRZK/erAaGsW7uqU4ymLB77Th7Sf K+c5JHG/wjx36oESVcBehkaYvKSOPCriv8EQ0YMtJgxKKlVZl/1x3LBIk956DR2zKUO+ac8hL1G+1 Su7kc4ll3NefXGd7eTDA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qRsqm-00CKdq-2z; Fri, 04 Aug 2023 11:20:08 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qRsqh-00CKbB-1Y for linux-arm-kernel@lists.infradead.org; Fri, 04 Aug 2023 11:20:05 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id C389961FA3; Fri, 4 Aug 2023 11:20:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CC5A9C433CB; Fri, 4 Aug 2023 11:20:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1691148002; bh=cemBNoW5QWOBCYa+qwFY/O9lluMjI27TqLyEWFpZFT4=; h=Subject:To:Cc:From:Date:In-Reply-To:From; b=WgDfXwGNMTUQHY0/UtPxTROC5oib3841Ir2kS9kNvTEC6xmVoL2EVvD2BXQxjFABZ i+Kvp7wmisZf7RLrbbNR1heK13q5nwMzBXHxY7q0ONAMzSpw9KRBw6zwzFmIYF9BsU QgRrqyT1MkMvVvQxu8FpId5HQGE4Q1U01JbBmofM= Subject: Patch "iommu/arm-smmu-v3: Document nesting-related errata" has been added to the 5.15-stable tree To: catalin.marinas@arm.com,corbet@lwn.net,eahariha@linux.microsoft.com,easwar.hariharan@microsoft.com,gregkh@linuxfoundation.org,iommu@lists.linux-foundation.org,iommu@lists.linux.dev,joro@8bytes.org,krckatom@amazon.de,linux-arm-kernel@lists.infradead.org,nicolinc@nvidia.com,robin.murphy@arm.com,sashal@kernel.org,will@kernel.org,yangyicong@hisilicon.com Cc: From: Date: Fri, 04 Aug 2023 13:19:46 +0200 In-Reply-To: <20230802170227.1590187-7-eahariha@linux.microsoft.com> Message-ID: <2023080446-discourse-canyon-8d38@gregkh> MIME-Version: 1.0 X-stable: commit X-Patchwork-Hint: ignore X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230804_042003_610515_9141ACDB X-CRM114-Status: GOOD ( 16.82 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This is a note to let you know that I've just added the patch titled iommu/arm-smmu-v3: Document nesting-related errata to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: iommu-arm-smmu-v3-document-nesting-related-errata.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >From stable-owner@vger.kernel.org Wed Aug 2 19:02:51 2023 From: Easwar Hariharan Date: Wed, 2 Aug 2023 17:02:27 +0000 Subject: iommu/arm-smmu-v3: Document nesting-related errata To: stable@vger.kernel.org Cc: easwar.hariharan@microsoft.com, Robin Murphy , Nicolin Chen , Will Deacon , Catalin Marinas , Jonathan Corbet , Joerg Roedel , Sasha Levin , Yicong Yang , Tomas Krcka , linux-arm-kernel@lists.infradead.org (moderated list:ARM64 PORT (AARCH64 ARCHITECTURE)), linux-doc@vger.kernel.org (open list:DOCUMENTATION), linux-kernel@vger.kernel.org (open list), iommu@lists.linux-foundation.org (open list:IOMMU DRIVERS), iommu@lists.linux.dev (open list:IOMMU DRIVERS) Message-ID: <20230802170227.1590187-7-eahariha@linux.microsoft.com> From: Robin Murphy commit 0bfbfc526c70606bf0fad302e4821087cbecfaf4 upstream Both MMU-600 and MMU-700 have similar errata around TLB invalidation while both stages of translation are active, which will need some consideration once nesting support is implemented. For now, though, it's very easy to make our implicit lack of nesting support explicit for those cases, so they're less likely to be missed in future. Signed-off-by: Robin Murphy Reviewed-by: Nicolin Chen Link: https://lore.kernel.org/r/696da78d32bb4491f898f11b0bb4d850a8aa7c6a.1683731256.git.robin.murphy@arm.com Signed-off-by: Will Deacon Signed-off-by: Easwar Hariharan Signed-off-by: Greg Kroah-Hartman --- Documentation/arm64/silicon-errata.rst | 4 ++-- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 5 +++++ 2 files changed, 7 insertions(+), 2 deletions(-) --- a/Documentation/arm64/silicon-errata.rst +++ b/Documentation/arm64/silicon-errata.rst @@ -122,9 +122,9 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | ARM | MMU-500 | #841119,826419 | N/A | +----------------+-----------------+-----------------+-----------------------------+ -| ARM | MMU-600 | #1076982 | N/A | +| ARM | MMU-600 | #1076982,1209401| N/A | +----------------+-----------------+-----------------+-----------------------------+ -| ARM | MMU-700 | #2812531 | N/A | +| ARM | MMU-700 | #2268618,2812531| N/A | +----------------+-----------------+-----------------+-----------------------------+ +----------------+-----------------+-----------------+-----------------------------+ | Broadcom | Brahma-B53 | N/A | ARM64_ERRATUM_845719 | --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -3487,11 +3487,16 @@ static void arm_smmu_device_iidr_probe(s /* Arm erratum 1076982 */ if (variant == 0 && revision <= 2) smmu->features &= ~ARM_SMMU_FEAT_SEV; + /* Arm erratum 1209401 */ + if (variant < 2) + smmu->features &= ~ARM_SMMU_FEAT_NESTING; break; case IIDR_PRODUCTID_ARM_MMU_700: /* Arm erratum 2812531 */ smmu->features &= ~ARM_SMMU_FEAT_BTM; smmu->options |= ARM_SMMU_OPT_CMDQ_FORCE_SYNC; + /* Arm errata 2268618, 2812531 */ + smmu->features &= ~ARM_SMMU_FEAT_NESTING; break; } break; Patches currently in stable-queue which might be from stable-owner@vger.kernel.org are queue-5.15/arm64-errata-add-workaround-for-tsb-flush-failures.patch queue-5.15/iommu-arm-smmu-v3-document-nesting-related-errata.patch queue-5.15/iommu-arm-smmu-v3-add-explicit-feature-for-nesting.patch queue-5.15/arm64-errata-add-detection-for-trbe-write-to-out-of-range.patch queue-5.15/iommu-arm-smmu-v3-document-mmu-700-erratum-2812531.patch queue-5.15/iommu-arm-smmu-v3-work-around-mmu-600-erratum-1076982.patch _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel