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 43D0CCCD184 for ; Fri, 17 Oct 2025 07:13:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type: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=MKFyMDPvTa9boGw/pIA8VSgPtcenGXXPbiiS70Y6s2M=; b=FT7BjdS2CzuAwi7yWWXMzjIt92 O4pCFxbJzsqzciutrGBd+vHtgQET9qJAD4AXRPmO3oE3g79SnM2Z9KT71czb7LylmZWjTAGoDs3iP J94l/D0st6vP1NcKedH4PIT5fH+F89k2AHbTuUT19XTR6kXvy8eZRjc1Zf/h0bc7FXa+RaCBvF022 wXwPrNdm0dQhy/wuqjHvwGDHgRZVuMa1RvR2hQmnNd18kvyJ8LNrRLu2PXrM5MiM0pwrXwaHFSF4C v4KPFxwfLwPDdUKNbBcEaBeH2JWpPOlGstradtp9OGBAFMLyWOYSTWYmPmdYnpAWR8RoslWn2GI4l DEFtJT3w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1v9eea-00000006wWL-2hSj; Fri, 17 Oct 2025 07:13:32 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1v9eeY-00000006wVp-3rpy for linux-arm-kernel@lists.infradead.org; Fri, 17 Oct 2025 07:13:31 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 1E34564040; Fri, 17 Oct 2025 07:13:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6F61EC4CEE7; Fri, 17 Oct 2025 07:13:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1760685209; bh=e1vaQfds8k8YMet3ny9OYsJZ1KjuD/MkFtOtjq06w7I=; h=Subject:To:Cc:From:Date:In-Reply-To:From; b=Nhb15t8JSQhMEFIRempLclUJ3BfvAkq29WzAGLEGXvu1zv7p9lR6LydmJ2+m2dV+X AN4De/6AQL36yfVFOAJNBY2gTylpEW7xLpz4qSdivQylDUgm7JqdZ/STIN1FhIhR/P PyU0kan8w5zHkTILZHerk7nYjrBs9W9iovSV9ywE= Subject: Patch "arm64: errata: Apply workarounds for Neoverse-V3AE" has been added to the 6.12-stable tree To: catalin.marinas@arm.com,gregkh@linuxfoundation.org,james.morse@arm.com,linux-arm-kernel@lists.infradead.org,mark.rutland@arm.com,ryan.roberts@arm.com,will@kernel.org Cc: From: Date: Fri, 17 Oct 2025 09:13:19 +0200 In-Reply-To: <20251016111208.3983300-3-ryan.roberts@arm.com> Message-ID: <2025101719-legislate-plasma-7c16@gregkh> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit X-stable: commit X-Patchwork-Hint: ignore 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: , 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 arm64: errata: Apply workarounds for Neoverse-V3AE to the 6.12-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: arm64-errata-apply-workarounds-for-neoverse-v3ae.patch and it can be found in the queue-6.12 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >From stable+bounces-186004-greg=kroah.com@vger.kernel.org Thu Oct 16 13:12:53 2025 From: Ryan Roberts Date: Thu, 16 Oct 2025 12:12:06 +0100 Subject: arm64: errata: Apply workarounds for Neoverse-V3AE To: stable@vger.kernel.org Cc: Ryan Roberts , catalin.marinas@arm.com, will@kernel.org, mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, James Morse Message-ID: <20251016111208.3983300-3-ryan.roberts@arm.com> From: Mark Rutland [ Upstream commit 0c33aa1804d101c11ba1992504f17a42233f0e11 ] Neoverse-V3AE is also affected by erratum #3312417, as described in its Software Developer Errata Notice (SDEN) document: Neoverse V3AE (MP172) SDEN v9.0, erratum 3312417 https://developer.arm.com/documentation/SDEN-2615521/9-0/ Enable the workaround for Neoverse-V3AE, and document this. Signed-off-by: Mark Rutland Cc: James Morse Cc: Will Deacon Cc: Catalin Marinas Signed-off-by: Ryan Roberts Signed-off-by: Will Deacon [ Ryan: Trivial backport ] Signed-off-by: Ryan Roberts Signed-off-by: Greg Kroah-Hartman --- Documentation/arch/arm64/silicon-errata.rst | 2 ++ arch/arm64/Kconfig | 1 + arch/arm64/kernel/cpu_errata.c | 1 + 3 files changed, 4 insertions(+) --- a/Documentation/arch/arm64/silicon-errata.rst +++ b/Documentation/arch/arm64/silicon-errata.rst @@ -198,6 +198,8 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | ARM | Neoverse-V3 | #3312417 | ARM64_ERRATUM_3194386 | +----------------+-----------------+-----------------+-----------------------------+ +| ARM | Neoverse-V3AE | #3312417 | ARM64_ERRATUM_3194386 | ++----------------+-----------------+-----------------+-----------------------------+ | ARM | MMU-500 | #841119,826419 | N/A | +----------------+-----------------+-----------------+-----------------------------+ | ARM | MMU-600 | #1076982,1209401| N/A | --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1111,6 +1111,7 @@ config ARM64_ERRATUM_3194386 * ARM Neoverse-V1 erratum 3324341 * ARM Neoverse V2 erratum 3324336 * ARM Neoverse-V3 erratum 3312417 + * ARM Neoverse-V3AE erratum 3312417 On affected cores "MSR SSBS, #0" instructions may not affect subsequent speculative instructions, which may permit unexepected --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -455,6 +455,7 @@ static const struct midr_range erratum_s MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1), MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V2), MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V3), + MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V3AE), {} }; #endif Patches currently in stable-queue which might be from ryan.roberts@arm.com are queue-6.12/arm64-cputype-add-neoverse-v3ae-definitions.patch queue-6.12/mm-thp-fix-mte-tag-mismatch-when-replacing-zero-filled-subpages.patch queue-6.12/arm64-errata-apply-workarounds-for-neoverse-v3ae.patch