Message ID | 0-v1-5f734af130a3+34f-iommu_fwspec_jgg@nvidia.com (mailing list archive) |
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Return-Path: <linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org> 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 3F08AC0018C for <linux-riscv@archiver.kernel.org>; Fri, 3 Nov 2023 17:45:58 +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:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=hzYPMX9XbJg4CLOV1BrAY2A0d9oytXx3iILP7QO6CJ8=; b=WCF7/aLxTdkMdg ZnyMf+bCpLwMvdtLOUy4gP+lZGBkorFiLknkA8k6XTP0/dbZdWIEJJwsFNB9yTobnBsrPwMLAIPjZ 6DaJT/3PiavqhZB+1bpiD803jVcL2YnI98wrxORU6aOH67IOOBu7LU6bZ9qYXC7fOxQA3Ud6COrqd r2A0W2PjCPdFMtvszNJ8CBpkEhtsCGcI9dVFd7aRUHWeKt4oXRTbnZJDXZJQ+Eg/TQehXlp6Wnum5 wOKa081gQSr/g1WeQDXxhkwwEzjhtGD7HCyM3JPAHFiXgMQbkXeR9maVEqBgBXWjD+eAOOSFpWmEH 0ZDE+4zc57pmok6onh6g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qyyEy-00Bu3j-24; Fri, 03 Nov 2023 17:45:52 +0000 Received: from mail-bn8nam12on2061c.outbound.protection.outlook.com ([2a01:111:f400:fe5b::61c] helo=NAM12-BN8-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qyxIQ-00BoAI-2P; Fri, 03 Nov 2023 16:45:27 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=UI0Mogj/GOPR02KPRmqtKpI8K9BUGvC6RBKBlIOgxhzzOKTDKFP5pm0d32xVkIy0jast6UHAPuuDhXQ4S4eBzpby0/fj+48ldw+gxfMvvhpCv1Ux0A3BCc7Vp1GVu7nh7r9pLTRVFEQlq7L4f3kxdx4rhhH2t66uhlP4lU76SnRfrd9OKmoAMZCtuoaTseOVJTKm+xwuGp6lBcLkz9MAOO8Zhv6bquG1sobyb00G7x5FGHiTQrbPGxYsZw/a9ePEpwRiiDGgXdZhPp9bHE7AcPAQXisj1Pq06xRrGPMEvT/oo0F1CSBdxzQ1IoEoVosGYOrJqA90FcnSgyBINbVlRQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; 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=ywgd3HRS4oK39R26TqVY+MWvg9q8mZK2BdG9RN/u22A=; b=Kz4J5CptebELn8v3T8fQLGN4i2I/C/e9bpqULDdqCZU+jOEEktGVU3kF26e4cU6bXyy0BKEC8Q3zHpl1YLT+BIWY3NEqo9ZIhY74vOHAc1LIeQV7JGtWIyIG+xmSfflZvSOtO24lKV85u00/YcBSUEfoY8xUzWU8+0PruNFvDm9TvCW2VTgzMVY0/yCS+LL0avF3Mtb0DzWBle7Mr8HDL1sVlr3+Dtn4EljT6NfTLoZ01tWjVa5pkqiSsGDyqrR+Ngwx96qSpSVNC/NV+KPGGYXhY0IU+OnOAXB61PEkIPVrkCdwBfugBRJI+SrUUdwcG+sRuAVqCxdCPU/LS0hWfA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none 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=ywgd3HRS4oK39R26TqVY+MWvg9q8mZK2BdG9RN/u22A=; b=SyL2cOUyv00dS5YEl5lQ+AlGwI79I69+//iQR3SQKxsCTstWRo34Iha1tXDLYwNmWK5uQygtbgwzZa4n336qItTqK7jgvmGDoVAjpq3vPnnhn2WJSRmmWjrkiln0z/qGACjcJtDcb76TKG2orePjsRqjZPe5NcuV1stvC91HKjlvMLdwpJ5LAdMWU5XyGYuYJertb4bpR4pBIGMHi7cJ+BJe9W6peMVHviqNNQt8jNcvFv+PCABcWAajUXHu4soYbBXFNp08BphGSLauS14jlrPpTqAQv6LPwoEPZjdDqnl9jK1zr8XllFxOOKLClK3wqwKIEl/PzZ7T5QVsFaDJdQ== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from LV2PR12MB5869.namprd12.prod.outlook.com (2603:10b6:408:176::16) by CH3PR12MB9282.namprd12.prod.outlook.com (2603:10b6:610:1cb::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6954.21; Fri, 3 Nov 2023 16:45:09 +0000 Received: from LV2PR12MB5869.namprd12.prod.outlook.com ([fe80::b53a:1092:9be2:cfb9]) by LV2PR12MB5869.namprd12.prod.outlook.com ([fe80::b53a:1092:9be2:cfb9%4]) with mapi id 15.20.6933.027; Fri, 3 Nov 2023 16:45:09 +0000 From: Jason Gunthorpe <jgg@nvidia.com> To: acpica-devel@lists.linuxfoundation.org, Alyssa Rosenzweig <alyssa@rosenzweig.io>, Albert Ou <aou@eecs.berkeley.edu>, asahi@lists.linux.dev, Lu Baolu <baolu.lu@linux.intel.com>, Catalin Marinas <catalin.marinas@arm.com>, Dexuan Cui <decui@microsoft.com>, devicetree@vger.kernel.org, David Woodhouse <dwmw2@infradead.org>, Frank Rowand <frowand.list@gmail.com>, Hanjun Guo <guohanjun@huawei.com>, Haiyang Zhang <haiyangz@microsoft.com>, Christoph Hellwig <hch@lst.de>, iommu@lists.linux.dev, Jean-Philippe Brucker <jean-philippe@linaro.org>, Jonathan Hunter <jonathanh@nvidia.com>, Joerg Roedel <joro@8bytes.org>, "K. Y. Srinivasan" <kys@microsoft.com>, Len Brown <lenb@kernel.org>, linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-hyperv@vger.kernel.org, linux-mips@vger.kernel.org, linux-riscv@lists.infradead.org, linux-snps-arc@lists.infradead.org, linux-tegra@vger.kernel.org, Russell King <linux@armlinux.org.uk>, Lorenzo Pieralisi <lpieralisi@kernel.org>, Marek Szyprowski <m.szyprowski@samsung.com>, Hector Martin <marcan@marcan.st>, Palmer Dabbelt <palmer@dabbelt.com>, Paul Walmsley <paul.walmsley@sifive.com>, "Rafael J. Wysocki" <rafael@kernel.org>, Robert Moore <robert.moore@intel.com>, Rob Herring <robh+dt@kernel.org>, Robin Murphy <robin.murphy@arm.com>, Sudeep Holla <sudeep.holla@arm.com>, Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>, Sven Peter <sven@svenpeter.dev>, Thierry Reding <thierry.reding@gmail.com>, Thomas Bogendoerfer <tsbogend@alpha.franken.de>, Krishna Reddy <vdumpa@nvidia.com>, Vineet Gupta <vgupta@kernel.org>, virtualization@lists.linux-foundation.org, Wei Liu <wei.liu@kernel.org>, Will Deacon <will@kernel.org> Cc: Zhenhua Huang <quic_zhenhuah@quicinc.com> Subject: [PATCH RFC 00/17] Solve iommu probe races around iommu_fwspec Date: Fri, 3 Nov 2023 13:44:45 -0300 Message-ID: <0-v1-5f734af130a3+34f-iommu_fwspec_jgg@nvidia.com> X-ClientProxiedBy: MN2PR19CA0035.namprd19.prod.outlook.com (2603:10b6:208:178::48) To LV2PR12MB5869.namprd12.prod.outlook.com (2603:10b6:408:176::16) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV2PR12MB5869:EE_|CH3PR12MB9282:EE_ X-MS-Office365-Filtering-Correlation-Id: 779b6205-240f-4de2-b8a3-08dbdc8c3b3d X-LD-Processed: 43083d15-7273-40c1-b7db-39efd9ccc17a,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Series |
Solve iommu probe races around iommu_fwspec
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expand
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Hi Jason, On Fri, 2023-11-03 at 13:44 -0300, Jason Gunthorpe wrote: > This is a more complete solution that the first attempt here: > https://lore.kernel.org/r/1698825902-10685-1-git-send-email-quic_zhenhuah@quicinc.com > > I haven't been able to test this on any HW that touches these paths, so if > some people with HW can help get it in shape it can become non-RFC. Thank you for this series. Please note that we're also observing this issue on 6.1. I think this series is a good candidate for a back port (slightly complicated by the fact that various refactors have happened since). For me, it's working fine so far on master, and I've also done my own back port to 6.1 and am currently testing both. An official back port once finalised could be useful, though :-) Cheers, Andre'
On Wed, Nov 08, 2023 at 06:34:58PM +0000, André Draszik wrote: > For me, it's working fine so far on master, and I've also done my own back port > to 6.1 and am currently testing both. An official back port once finalised > could be useful, though :-) Great, I'll post a non-RFC version next week (LPC permitting) BTW, kbuild 0-day caught your note in the other email and a bunch of other wonky stuff I've fixed on the github version. Thanks, Jason
Thanks Jason. On 2023/11/4 0:44, Jason Gunthorpe wrote: > This is a more complete solution that the first attempt here: > https://lore.kernel.org/r/1698825902-10685-1-git-send-email-quic_zhenhuah@quicinc.com > > I haven't been able to test this on any HW that touches these paths, so if > some people with HW can help get it in shape it can become non-RFC. Thank you for addressing it quickly with a thorough way. I have backported it to Android common kernel 6.1 and tested basic sanity well. I will share these to OEMs and see if they can reproduce further, thanks. Thanks, Zhenhua