Message ID | 0-v1-5f734af130a3+34f-iommu_fwspec_jgg@nvidia.com |
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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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The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: 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. 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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