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 E185CC44515 for ; Mon, 20 Jul 2026 08:27:03 +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:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=uvO1aPOrH9qcru1lsSePrBwTtIjIpNV09myyzyzygPE=; b=zj+NcXnThKiVKU+7XtYwqI+9eW 7NzjCnvKW+/F/A9KdhIeh1WSOhR2JgLOIiXb+r9z3q4AM3ftTtpf7meEwl5Ycs0KNzOa6I+ZCF88W uBAUJURzeK2E5bpHCog2DU6wzQVsqbeu1lzJPGCB2v0R0mtSQ3bdSV+9QM2sNnezJhdc5orMXAsvC y23Cmyp4ddHLfZcI1z7r1/ZDP1CjgHt6myAO3RNqPU8r6Fkbmu2KgrMLBLRbk5j46zX1wJJXZctLc +8dtn+SdK+7Ber8KEQeUsFpfrt6887/F2jGUEpBtKdamb6jwBxRGL97kMmr6L8PKVy7Zmm7UevQcR 8QcTBiSQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wljKz-00000006C22-0siC; Mon, 20 Jul 2026 08:26:57 +0000 Received: from mx0a-0031df01.pphosted.com ([205.220.168.131]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wljKw-00000006C0h-0UbB for linux-arm-kernel@lists.infradead.org; Mon, 20 Jul 2026 08:26:55 +0000 Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 66K7YPLc2044321 for ; Mon, 20 Jul 2026 08:26:53 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= uvO1aPOrH9qcru1lsSePrBwTtIjIpNV09myyzyzygPE=; b=pAGBBbywxeysVlas GFmdusuG73KvhYxviYX8Z5wyW6s9hRSYaAmg9LiOf92Ov0OqqdsO02WGw3PchPpU TpY6T3XzFewSZlvxAq8PpKvp577u9Ncu6+b4d0zwE91w+3xgWe/hLeER0EOe9CnY OWQnaVVxKq+gKf+QFdHztSTmDZJ+P6ROMcWpMrc1KBTKB5Y5WO0WqhXn6pv997rb F1pZ07DCIV5Is/khy8VVDAtToYrdtD2/wZlH0CkrXBV96UeLhaoYGM8fyPBGIa7/ gMj4/lKJYwsUXbtGRJvPmPhOVgTrDl8LTYCMqrntb4u3Mzhf4zygTVHdVuczbSAi dBbZfg== Received: from mail-pj1-f70.google.com (mail-pj1-f70.google.com [209.85.216.70]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4fhfdcg63s-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Mon, 20 Jul 2026 08:26:53 +0000 (GMT) Received: by mail-pj1-f70.google.com with SMTP id 98e67ed59e1d1-37f5ea6097cso1412124a91.3 for ; Mon, 20 Jul 2026 01:26:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1784536013; x=1785140813; darn=lists.infradead.org; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:from:to:cc:subject:date:message-id:reply-to :content-type; bh=uvO1aPOrH9qcru1lsSePrBwTtIjIpNV09myyzyzygPE=; b=N9Kfn4vuH5Yu+pkV5mcQrWlYfrb8KIZc4cdlEit80SuzmRMJnx9rRG6uAhyXsQTluo NNQRi6eth5Cy6zeQ1Rr0pRRr8O9QMAInwj5msGnwrEjzfKR2+4f4ZG2Xi4ehYggsQuNP atIR7tsYULTwbGyCSr/sou7CYWj+b+gMRvwVmqhdIzln0AFfaK4CNyWef2PpxIhORHH+ hDRB5fIEt3KwCoP3+q11H3uYPMz9QtpQnTT+Z4Qljnj2qqErv+q8jTip9pcuZtiOl+iX 6PrpVHL9W90BfGke8y4TCNdN0S/eO6kAf0bRt7B8X/CNlfRce1MuBvMNr+LwtTww6ZsR jKOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1784536013; x=1785140813; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=uvO1aPOrH9qcru1lsSePrBwTtIjIpNV09myyzyzygPE=; b=VcgHDYd09w6T89bk8OXltWEy2HF1Q+8CYNBm18lRjnCRkkCIo7gIqtNHVRxYPNr5Co ODyGY8S4F/Wu+EJuUVryCUmNZ9Xg4ZlIpywv7/KZWZRV8vJR6er5zJxoQ6KF8y0rIIZR pkJVnWurGceP1XX2BJruQPZfpFwbIbqovhZyXqhedPgoWD+EjogNoxH473E2T1Hod7QE C4OgMG5YFRza95SoCKIlfr5FcL2uP7OdugPlwvgpzyeMYZj/hko3cnPDYdjRQ6oA1Qoj dyQiKd/aMEiCIbEEU8d3oPylw5mduQznZEJONomtW2aBUPZXbmc0yFjde049c9+i3AI0 Gu6g== X-Forwarded-Encrypted: i=1; AHgh+Ro5yTCI98u5XjzFsy10AzT+CTpZ3EE3ecrja4pjAkTnza0ISr/Mr1DIoDiugg4q5QMyjK7xF+XfJEB4zekybnaF@lists.infradead.org X-Gm-Message-State: AOJu0YxemNO3VlIW473Y+7sMgdpwEQiQXWjwaTTiadEDhCLBrdjhDHen TnNMmuAm+KlmdbD8dz//pf754QiXnufLHCaOGysk1+ICroydSKukvvWQe2IasjDxhoYZFN7Ksye YXvZd1zUHCzvpc5QKzlzyCSIJ4NaMh3sMpZqSqxOxX6ooHurUdM/NpiWEh1GnuoNS9XZg62+XgC RjQw== X-Gm-Gg: AfdE7clTuCkXsugXhhhgJ2New1Qe4QCXEBbRKZTvsiWncpLuAEdoYdOLKP+3PbLlQZY iYPkYraL7x3rBn9c9K1RRv0Hv/N7KdWbNBKoPqj8RN3Lg3DAsoR6TLbn5T35gC3kBRP2PprRmzS 405poOCOAcj43J/43BrwNRPOrKWGeuGoQdz1t8ClUqXpP1VU87n6xiLariUbZsXqwbT1nh7R+m/ Mbq1c3buKuHxKapDKPoqZxJpvBF6HuOOlRDrzs96UHIVPuYHtyIRetNDKWtFpE2rO6keoGz9N7a 1U7W/oCqiC1aLWRxjWfslbAOpOSOa7IW5hcJ8XHG9DpUAeU4OdnOnHBQuYBNTRc4MG2h+eNhoii yo1VERxItzbW2p6DMxhiw281GK0E/uA== X-Received: by 2002:a17:90b:a48:b0:38e:6a7c:abbc with SMTP id 98e67ed59e1d1-38e6a7cacfbmr3818789a91.3.1784536012796; Mon, 20 Jul 2026 01:26:52 -0700 (PDT) X-Received: by 2002:a17:90b:a48:b0:38e:6a7c:abbc with SMTP id 98e67ed59e1d1-38e6a7cacfbmr3818774a91.3.1784536012350; Mon, 20 Jul 2026 01:26:52 -0700 (PDT) Received: from [10.92.208.175] ([202.46.23.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-38e4b0e9c5fsm5437015a91.10.2026.07.20.01.26.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 20 Jul 2026 01:26:51 -0700 (PDT) Message-ID: <89f07e36-ac7e-4895-8d2f-5c509c6eabdb@oss.qualcomm.com> Date: Mon, 20 Jul 2026 13:56:44 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v7 00/16] Support Armv8 RAS Extensions for Kernel-first error handling To: Catalin Marinas , Borislav Petkov Cc: Ruidong Tian , Will Deacon , Lorenzo Pieralisi , Hanjun Guo , Sudeep Holla , "Rafael J . Wysocki" , Len Brown , Tony Luck , Thomas Gleixner , Peter Zijlstra , Robin Murphy , linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-edac@vger.kernel.org, zhuo.song@linux.alibaba.com, oliver.yang@linux.alibaba.com, James Morse , Rob Herring References: <20260602071540.3711528-1-tianruidong@linux.alibaba.com> <20260708024131.GCak242z-9YE2xL6q0@fat_crate.local> Content-Language: en-US From: Umang Chheda In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: NH23A9AhDRwM82anbcZsCoyDoJWjQHjY X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzIwMDA5MyBTYWx0ZWRfX1K89UP307tpN 3ZJymqoCzUNuQjW/0t+YDOksa0hVtECgeQEuloLyjJCQ3dth6Cx3MYxdPl8wQ+P8fE/+E+t2hrc Ym3m5wlxz7i7a3V8owzM1XlFSoJQmGcZy7ECcwgCcFolUu0S2W45TS67cZ1DEriSdJLW7eQYLAR O20TYaCyNPqgRWE7xc/+0bft2/9SA4Q8khHI3paHmSnmn/yoLhmI28WG1WiNt32MsNxnH1Wymdq bh4viBFqxxUIKhtAZghlu7l5687eBr/SUdgn8Ct/wO2Ead15YB5f1u/DSGDulOHY4TzaJ9Re/lX 7dZhLncNuVMeewSpuwbCYSqRT1cpP8MCkApc9Vo4CA1TddE1lC5d3Rd9aJzTonZBG6+YFQGmTWc F+VgF0zAxZqZhfBWZKUKoqntlKS3k/XerOLyf+t2dtSJdn4dyzxHjxZKFOFBzTUVtmfmtg72CaM PR80nIgpgaOO8YIwzjg== X-Proofpoint-Spam-Info: AW1haW4tMjYwNzIwMDA5MyBTYWx0ZWRfX3U/d6I8xEtKs IWYTW3qCCbGkwhRc+mhicSh6cRL5wX7DXyizHrB/dS9GxmNuxQ/8gZ5lDfVSq9YsKfAUVNVvn+D 66+2MSiEAHm1AcbG3Uu3TApz0JS6Gmw= X-Proofpoint-GUID: NH23A9AhDRwM82anbcZsCoyDoJWjQHjY X-Authority-Analysis: v=2.4 cv=bv58wkai c=1 sm=1 tr=0 ts=6a5ddbcd cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=j4ogTh8yFefVWWEFDRgCtg==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=jnGYlY96OlQ6c1eOmxQA:9 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-20_01,2026-07-17_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 bulkscore=0 priorityscore=1501 spamscore=0 malwarescore=0 phishscore=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607200093 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260720_012654_170203_8BD15F9C X-CRM114-Status: GOOD ( 21.61 ) 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 Hello All/Catalin, On 7/8/2026 10:52 PM, Catalin Marinas wrote: > On Tue, Jul 07, 2026 at 07:41:31PM -0700, Borislav Petkov wrote: >> On Tue, Jun 02, 2026 at 03:15:23PM +0800, Ruidong Tian wrote: >>> Documentation/ABI/testing/debugfs-arm64-ras | 87 ++ >>> MAINTAINERS | 11 + >>> arch/arm64/include/asm/ras.h | 99 ++ >>> drivers/acpi/arm64/Kconfig | 10 + >>> drivers/acpi/arm64/Makefile | 1 + >>> drivers/acpi/arm64/aest.c | 423 ++++++++ >>> drivers/ras/Kconfig | 1 + >>> drivers/ras/Makefile | 1 + >>> drivers/ras/arm64/Kconfig | 16 + >>> drivers/ras/arm64/Makefile | 9 + >>> drivers/ras/arm64/ras-cmn.c | 479 +++++++++ >>> drivers/ras/arm64/ras-core.c | 1026 +++++++++++++++++++ >>> drivers/ras/arm64/ras-inject.c | 130 +++ >>> drivers/ras/arm64/ras-storm.c | 198 ++++ >>> drivers/ras/arm64/ras-sysfs.c | 319 ++++++ >>> drivers/ras/arm64/ras.h | 374 +++++++ >>> drivers/ras/debugfs.c | 3 +- >>> drivers/ras/ras.c | 3 + >>> include/linux/acpi_aest.h | 36 + >>> include/linux/cpuhotplug.h | 1 + >>> include/linux/ras.h | 10 + >>> include/ras/ras_event.h | 79 ++ >>> 22 files changed, 3315 insertions(+), 1 deletion(-) >>> create mode 100644 Documentation/ABI/testing/debugfs-arm64-ras >>> create mode 100644 arch/arm64/include/asm/ras.h >>> create mode 100644 drivers/acpi/arm64/aest.c >>> create mode 100644 drivers/ras/arm64/Kconfig >>> create mode 100644 drivers/ras/arm64/Makefile >>> create mode 100644 drivers/ras/arm64/ras-cmn.c >>> create mode 100644 drivers/ras/arm64/ras-core.c >>> create mode 100644 drivers/ras/arm64/ras-inject.c >>> create mode 100644 drivers/ras/arm64/ras-storm.c >>> create mode 100644 drivers/ras/arm64/ras-sysfs.c > [...] >> But that's still not that important - what is even more important is who from >> ARM is going to review and maintain this? I can take a look at the generic >> bits so that the RAS stuff coexists fine in drivers/ras/ but I'd need an ARM >> person to take care of this. >> >> There are enough on Cc so let's see if anyone moves. > > I will volunteer James Morse (he doesn't know yet) as the Arm RAS > expert. He's away this week, hopefully can have a look when he gets > back. For the ACPI bits, we have Lorenzo, Hanjun, Sudeep who should be > able to review. > > Adding Rob Herring as well who's been giving some feedback on the DT > counterpart: > > https://lore.kernel.org/all/20260505-aest-devicetree-support-v1-0-d5d6ffacf0a5@oss.qualcomm.com/ > > I have some vague recollection James wanting to start with something > simpler like EDAC and do DT first but I may be wrong or things could > have changed since. So, let's wait for James to comment. > JYFI, I have v2 [1] of DT front-end support for ARM RAS. https://lore.kernel.org/lkml/20260720081954.1858180-1-umang.chheda@oss.qualcomm.com/ Thanks, Umang