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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 Precedence: bulk X-Mailing-List: linux-edac@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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-Authority-Analysis: v=2.4 cv=HKLz0Itv c=1 sm=1 tr=0 ts=6a5ddbcd cx=c_pps a=UNFcQwm+pnOIJct1K4W+Mw==:117 a=j4ogTh8yFefVWWEFDRgCtg==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=jnGYlY96OlQ6c1eOmxQA:9 a=QEXdDO2ut3YA:10 a=uKXjsCUrEbL0IQVhDsJ9:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzIwMDA5MyBTYWx0ZWRfX1sZ2jG/ZbLsW GwkeI9ORGlSSazuJqDevPhBZYo1c5OzTa1F7Tps6SAtLuGMKpjGDodKM+2YMRi5tM2BuCjOxjXY lOGnXnRKQPTzS7p2PYYLOVP0qvZgEg0= X-Proofpoint-GUID: JwjVS4LPYqbk1pb1TZh1X8vXxVBx9xb9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzIwMDA5MyBTYWx0ZWRfX5OsgqkdmSXaI 8Udvh6ezxXBIHmjeX3ZgcuZjt0nJn11u8Svig2SAHm+Lkpccka0HDKdOXhKuMMsqeKbTxVocl/b 8gcTPophgNlCHXCVAYPiEZ0I+wMrS7Q1geeeVD66H3kw9lN5xyVdBCUQqHkCziokWRKL/mMq8TO x9/jD6i88CrG8SWdubEajsUJF9cU8YqpsPLql917IL1K5lK8l2fz8u99eBUMIfESXTe3/S+os6J 24VgKFoP+IYE03I08of2rCaZdZ1oRgL3iKF7tx3xEDANdGZiLtVyb/gSw4O4fgV/Xk7k4Wka3WU 86ZQMkAj0tKEHszHfsjOM7qAnw/mp5Q1nSRm+mX4hg+XCAbx31wra776Xp5ICNB9tyzyQQbPoW5 cuKl/7/LnNGJt3Ki7qumLOTaQ6IYE/ggTm44yCJkKB+Io3Vs5ZsvijCJI1QPdPX76iEayMLAEcV luna/V6fC+4TEPEfYDQ== X-Proofpoint-ORIG-GUID: JwjVS4LPYqbk1pb1TZh1X8vXxVBx9xb9 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 adultscore=0 impostorscore=0 clxscore=1015 malwarescore=0 bulkscore=0 spamscore=0 lowpriorityscore=0 suspectscore=0 priorityscore=1501 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607200093 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