From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from SN4PR2101CU001.outbound.protection.outlook.com (mail-southcentralusazon11012028.outbound.protection.outlook.com [40.93.195.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 79F4E36AB77 for ; Mon, 5 Oct 2026 20:49:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.93.195.28 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791233347; cv=fail; b=JSnMHusVhyUtd25DfauCGo2OUc1DuptJsa8S1H7LJcBRd2DgGRFBTr3S1Uyubr1mGsQM/xeYCG4PNxQrmrBEkO7RiJQvDgYVxzfayiqDqklo/zsA6ZZyGeBEVWnauKYnwkAicyWPwBUXBkvLRVDBoz3EqnJAtVLbD4hy1AEVks4= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791233347; c=relaxed/simple; bh=x8zUQyfca1xus1C+P7tdQlIcIgQCOlgIQvhxBtMi5jI=; h=Date:From:To:CC:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=HLlPv/+T2VWnPrFktI3DontsC4c6Tfn95Z4g9B8VgZR/yNrC40MMYNUwJaUyU3laaryHCEdhEulosFyK2u7bJNziFaRST6QLomeKzUbPdKr9z5CHqUTFqM+egNTzP1LZXYfeJ912iED/AuiqgoHe+miaa+6DTJVoqacUzjol/Zw= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com; spf=fail smtp.mailfrom=nvidia.com; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b=erlZjm0E; arc=fail smtp.client-ip=40.93.195.28 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=nvidia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="erlZjm0E" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=r7592dF816jADNKXN/dEQobk6oLcUa/W1+PdDUsagBP+L5NZa4mYONisafqQryUhHwFWXrsltHymgTwfywl4209NgHwAmNl7CxlqNI01M48u0RwAoBiz7XXvn2o4jgQKUInWV7+Pg0hlvlv1oNXXwqz1ta4A0jxxfGCso02fJQIXW6W6l3tfKJcBX65+0jap/lCiSyhYnGeBwnanHnswuH8h2gRjLkRT335J+fWGyK3KWSbbumJhrGZYx10Kp/QGmcWFNeC/sA225ORWu2kgFwUdI1U3av5FfjkPjhiyWYUy2UvwuGX0y1AGnw94557qvzkfAWj8lQhFZxxESOwwbA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=PNafjFO4Ut1TwDaTPr3P/axyEnqBWHbeDSGq9rqxadc=; b=QeZL7cuQ53H9hw+D0Ze/8JsucJXhHiVD10cVBc2LvFI2EHi9iF/rkosrvn6QnIIGB63YM6Avn2LQxD1IHOfK1KBC2mpuypmg8tELHapT45cOcpi/H9pIe+HMQAoroHmmpRHyXGpxomqDXOEYcn9p9jT6HSiC+UBKYMu1A4x1kFvtHYPT/+0TikZtyOLfLZHwkTT+wLEUw29DJ3Sle2IIvdoYJhwM+QLxyoYRzTRbYy/JCRefo0/2fEEQtjSjaGjXtdSxqwEzuaYqGVj5vX9QQDOHb8OV3XZM6iyRknMK7IErjOTCKakrrjsNLSNnXd5foCocUfl5rhrVnMX6TS/klA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.161) smtp.rcpttodomain=kernel.org smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=PNafjFO4Ut1TwDaTPr3P/axyEnqBWHbeDSGq9rqxadc=; b=erlZjm0EQQGEmeO/XVXEENhQbg6ChnelGiscUKmxBBb+3rNdh6eP1/jUfedW9ciEHpH2RZCAFTBUBQi/eMeVTyW1XpwvC5wsqbvWtx6DYen77cdOE3ZHB+Y44UpD6uuqrY2G9sfiZdAwGiUDrTCVH4P59/TAStJRrYOMjlcEr8PNJImLEiaBNj1W62icLpT7Gj6fclXgycMJbALJUtjdc0BFx2gSWH2GfQKp88/sbLyJMwXo6539WLdAJR1MmQHT4UXlEBwAMt5IFsfLiTGeEq+63OkCWdehlbtlmFOINyXRcSZOzXaxv8LJS4IkuS2sLr8ZXyYcYZMTOrN8vfSE3Q== Received: from CH2PR10CA0021.namprd10.prod.outlook.com (2603:10b6:610:4c::31) by IA0PPFFEC453979.namprd12.prod.outlook.com (2603:10b6:20f:fc04::beb) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.472.20; Mon, 5 Oct 2026 20:48:59 +0000 Received: from BN5PEPF0004698D.namprd02.prod.outlook.com (2603:10b6:610:4c:cafe::19) by CH2PR10CA0021.outlook.office365.com (2603:10b6:610:4c::31) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.21.472.20 via Frontend Transport; Mon, 5 Oct 2026 20:48:59 +0000 X-MS-Exchange-Authentication-Results: mx.microsoft.com 1; spf=pass (sender IP is 216.228.117.161) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.117.161 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.161; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.161) by BN5PEPF0004698D.mail.protection.outlook.com (10.167.245.42) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.496.14 via Frontend Transport; Mon, 5 Oct 2026 20:48:58 +0000 Received: from rnnvmail201.nvidia.com (10.129.68.8) by mail.nvidia.com (10.129.200.67) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.49; Mon, 5 Oct 2026 13:48:33 -0700 Received: from rnnvmail205.nvidia.com (10.129.68.10) by rnnvmail201.nvidia.com (10.129.68.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.49; Mon, 5 Oct 2026 13:48:32 -0700 Received: from nvidia.com (10.127.8.10) by mail.nvidia.com (10.129.68.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.49 via Frontend Transport; Mon, 5 Oct 2026 13:48:31 -0700 Date: Mon, 5 Oct 2026 13:48:29 -0700 From: Nicolin Chen To: CC: , , , , , , , , , , , Cristian Prundeanu , Breno Leitao Subject: Re: [PATCH v11 00/11] iommu/arm-smmu-v3: Adopt the crashed kernel's stream table for kdump Message-ID: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN5PEPF0004698D:EE_|IA0PPFFEC453979:EE_ X-MS-Office365-Filtering-Correlation-Id: 0b753c89-ff3a-4eba-41dd-08df23221498 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|23010399003|36860700016|376014|1800799024|82310400026|11063799006|56012099006|10067099003|22082099003|18002099003|6133799003|13003099007; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(7416014)(23010399003)(36860700016)(376014)(1800799024)(82310400026)(11063799006)(56012099006)(10067099003)(22082099003)(18002099003)(6133799003)(13003099007);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: LInX/I+2WZ9dK6+MFMN47ckOwFRwABy1U8MHPG9kcOPGldPvvxcw1dPZrk8M1tt+LdBxNgDIQMap0GSavvhwGF9delncvAp10EzAxWb+pQiJLTAQJP8KswQHBoi0BDbqwEZVqYOpysJxKYT9TKUimi7/GWmWjvA1vih1vX4NX0HF6w6387a3fCdvopAcxXt9t5wapewXyq3aRy83+OyHeW7iILVo5YgF2kmoxLOcBEezEqnVgAT4/7a5fOeBcpC0ngptm5sJ9gchxwbKhz0miQPW5o2TpfCRXghoyX4SMp7xMzWeRnM032CAkgnNyAX8Q/KmQwMXuEwKUXTasvF7r6jco1jQYsuXuDYXuMfMevtwnfLggbU05IeMF8DlQQr+jf9jZ/4ElCd0kqsEMnFvHtq6aSST4LsBZrb0fdtK4vI5AOcs5Yj1KrW9+7sKT7w3 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Oct 2026 20:48:58.9444 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0b753c89-ff3a-4eba-41dd-08df23221498 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN5PEPF0004698D.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA0PPFFEC453979 On Mon, Oct 05, 2026 at 12:30:43PM -0700, Nicolin Chen wrote: > This is on Github: > https://github.com/nicolinc/iommufd/commits/smmuv3_kdump-v11 > > Changelog > v11 > * Rebase on arm/smmu/updates branch > * Add Tested-by from Breno and Cristian > * Add Reviewed/Acked-by from Jason and Kiryl > * Update commit messages and Assisted-by tags > * New prep patch: swap EVTQ/GERROR MSI indexes > * Skip EVTQ's CFG0 write and vector allocation > * Merge arm-smmu-v3-kdump code into arm-smmu-v3-kexec > * Fold patches accordingly as static functions require callers Will, I have checked the new Sashiko finding against this v11. To approach its claimed 35-trillion bound, every L1 descriptor, STE and CD L1 descriptor must pass the validations, which takes a deliberately built aliasing table but is not likely reachable in practice: with a corrupted memory, one of the entries would more likely either skip the iteration (V=0) or fail the test. I tend to ignore that. But if you think it is worth addressing and have some good idea about it, I don't mind a respin. Thanks Nicolin