From: Vasant Hegde <vasant.hegde@amd.com>
To: Nicolin Chen <nicolinc@nvidia.com>,
jgg@nvidia.com, kevin.tian@intel.com, corbet@lwn.net,
will@kernel.org
Cc: bagasdotme@gmail.com, robin.murphy@arm.com, joro@8bytes.org,
thierry.reding@gmail.com, vdumpa@nvidia.com,
jonathanh@nvidia.com, shuah@kernel.org, jsnitsel@redhat.com,
nathan@kernel.org, peterz@infradead.org, yi.l.liu@intel.com,
mshavit@google.com, praan@google.com, zhangzekun11@huawei.com,
iommu@lists.linux.dev, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-tegra@vger.kernel.org, linux-kselftest@vger.kernel.org,
patches@lists.linux.dev, mochs@nvidia.com,
alok.a.tiwari@oracle.com
Subject: Re: [PATCH v3 10/23] iommufd/viommu: Introduce IOMMUFD_OBJ_VQUEUE and its related struct
Date: Tue, 6 May 2025 14:47:22 +0530 [thread overview]
Message-ID: <cc9d2ff7-ce8c-419a-970c-cec88572c0c8@amd.com> (raw)
In-Reply-To: <b44dfbe2d933949f4d93a23fdae5b26af9d6f624.1746139811.git.nicolinc@nvidia.com>
On 5/2/2025 4:31 AM, Nicolin Chen wrote:
> Add a new IOMMUFD_OBJ_VQUEUE with an iommufd_vqueue structure representing
> a HW-accelerated queue type of physical IOMMU's passed to a user space VM.
> This vQUEUE object, is a subset of vIOMMU resources of a physical IOMMU's,
> such as:
> - NVIDIA's Virtual Command Queue
> - AMD vIOMMU's Command Buffer, Event Log Buffer, and PPR Log Buffer
>
> Introduce a struct iommufd_vqueue and an allocator iommufd_vqueue_alloc().
> Also, add a pair of viommu ops for iommufd to forward user space ioctls to
> IOMMU drivers.
>
> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
> Reviewed-by: Pranjal Shrivastava <praan@google.com>
> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
-Vasant
next prev parent reply other threads:[~2025-05-06 9:17 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-01 23:01 [PATCH v3 00/23] iommufd: Add vIOMMU infrastructure (Part-4 vQUEUE) Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 01/23] iommufd/viommu: Add driver-allocated vDEVICE support Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 02/23] iommu: Pass in a driver-level user data structure to viommu_alloc op Nicolin Chen
2025-05-06 5:43 ` Vasant Hegde
2025-05-01 23:01 ` [PATCH v3 03/23] iommufd/viommu: Allow driver-specific user data for a vIOMMU object Nicolin Chen
2025-05-06 9:32 ` Vasant Hegde
2025-05-01 23:01 ` [PATCH v3 04/23] iommu: Add iommu_copy_struct_to_user helper Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 05/23] iommufd/driver: Let iommufd_viommu_alloc helper save ictx to viommu->ictx Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 06/23] iommufd/driver: Add iommufd_struct_destroy to revert iommufd_viommu_alloc Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 07/23] iommufd/selftest: Support user_data in mock_viommu_alloc Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 08/23] iommufd/selftest: Add covearge for viommu data Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 09/23] iommufd: Abstract iopt_pin_pages and iopt_unpin_pages helpers Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 10/23] iommufd/viommu: Introduce IOMMUFD_OBJ_VQUEUE and its related struct Nicolin Chen
2025-05-06 9:17 ` Vasant Hegde [this message]
2025-05-01 23:01 ` [PATCH v3 11/23] iommufd/viommu: Add IOMMUFD_CMD_VQUEUE_ALLOC ioctl Nicolin Chen
2025-05-06 9:15 ` Vasant Hegde
2025-05-06 12:01 ` Jason Gunthorpe
2025-05-07 7:41 ` Vasant Hegde
2025-05-07 8:00 ` Tian, Kevin
2025-05-07 12:31 ` Jason Gunthorpe
2025-05-08 4:46 ` Vasant Hegde
2025-05-08 5:56 ` Nicolin Chen
2025-05-08 12:14 ` Jason Gunthorpe
2025-05-08 17:12 ` Nicolin Chen
2025-05-09 11:52 ` Vasant Hegde
2025-05-01 23:01 ` [PATCH v3 12/23] iommufd/driver: Add iommufd_vqueue_depend/undepend() helpers Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 13/23] iommufd/selftest: Add coverage for IOMMUFD_CMD_VQUEUE_ALLOC Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 14/23] iommufd: Add mmap interface Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 15/23] iommufd/selftest: Add coverage for the new " Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 16/23] Documentation: userspace-api: iommufd: Update vQUEUE Nicolin Chen
2025-05-02 3:50 ` Bagas Sanjaya
2025-05-02 5:29 ` Nicolin Chen
2025-05-02 7:31 ` Bagas Sanjaya
2025-05-01 23:01 ` [PATCH v3 17/23] iommu/arm-smmu-v3-iommufd: Add vsmmu_alloc impl op Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 18/23] iommu/arm-smmu-v3-iommufd: Support implementation-defined hw_info Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 19/23] iommu/tegra241-cmdqv: Use request_threaded_irq Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 20/23] iommu/tegra241-cmdqv: Simplify deinit flow in tegra241_cmdqv_remove_vintf() Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 21/23] iommu/tegra241-cmdqv: Do not statically map LVCMDQs Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 22/23] iommu/tegra241-cmdqv: Add user-space use support Nicolin Chen
2025-05-01 23:09 ` Nicolin Chen
2025-05-01 23:01 ` [PATCH v3 23/23] iommu/tegra241-cmdqv: Add IOMMU_VEVENTQ_TYPE_TEGRA241_CMDQV support Nicolin Chen
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