From: Jason Gunthorpe <jgg@nvidia.com>
To: Nicolin Chen <nicolinc@nvidia.com>
Cc: kevin.tian@intel.com, corbet@lwn.net, will@kernel.org,
joro@8bytes.org, suravee.suthikulpanit@amd.com,
robin.murphy@arm.com, dwmw2@infradead.org,
baolu.lu@linux.intel.com, shuah@kernel.org,
linux-kernel@vger.kernel.org, iommu@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kselftest@vger.kernel.org, linux-doc@vger.kernel.org,
eric.auger@redhat.com, jean-philippe@linaro.org, mdf@kernel.org,
mshavit@google.com, shameerali.kolothum.thodi@huawei.com,
smostafa@google.com, ddutile@redhat.com, yi.l.liu@intel.com,
praan@google.com, patches@lists.linux.dev
Subject: Re: [PATCH v7 13/14] iommu/arm-smmu-v3: Report events that belong to devices attached to vIOMMU
Date: Tue, 25 Feb 2025 12:05:18 -0400 [thread overview]
Message-ID: <20250225160518.GD587949@nvidia.com> (raw)
In-Reply-To: <b1930038cf828dc13c080e2b46b3003a8c98ef24.1740238876.git.nicolinc@nvidia.com>
On Sat, Feb 22, 2025 at 07:54:10AM -0800, Nicolin Chen wrote:
> Aside from the IOPF framework, iommufd provides an additional pathway to
> report hardware events, via the vEVENTQ of vIOMMU infrastructure.
>
> Define an iommu_vevent_arm_smmuv3 uAPI structure, and report stage-1 events
> in the threaded IRQ handler. Also, add another four event record types that
> can be forwarded to a VM.
>
> Reviewed-by: Kevin Tian <kevin.tian@intel.com>
> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
> ---
> drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 7 +++
> include/uapi/linux/iommufd.h | 23 +++++++
> .../arm/arm-smmu-v3/arm-smmu-v3-iommufd.c | 17 ++++++
> drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 60 +++++++++++--------
> 4 files changed, 82 insertions(+), 25 deletions(-)
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Jason
next prev parent reply other threads:[~2025-02-25 16:45 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-22 15:53 [PATCH v7 00/14] iommufd: Add vIOMMU infrastructure (Part-3: vEVENTQ) Nicolin Chen
2025-02-22 15:53 ` [PATCH v7 01/14] iommufd/fault: Move two fault functions out of the header Nicolin Chen
2025-02-22 15:53 ` [PATCH v7 02/14] iommufd/fault: Add an iommufd_fault_init() helper Nicolin Chen
2025-02-22 15:54 ` [PATCH v7 03/14] iommufd: Abstract an iommufd_eventq from iommufd_fault Nicolin Chen
2025-02-22 15:54 ` [PATCH v7 04/14] iommufd: Rename fault.c to eventq.c Nicolin Chen
2025-02-22 15:54 ` [PATCH v7 05/14] iommufd: Add IOMMUFD_OBJ_VEVENTQ and IOMMUFD_CMD_VEVENTQ_ALLOC Nicolin Chen
2025-02-25 15:29 ` Jason Gunthorpe
2025-02-22 15:54 ` [PATCH v7 06/14] iommufd/viommu: Add iommufd_viommu_get_vdev_id helper Nicolin Chen
2025-02-22 15:54 ` [PATCH v7 07/14] iommufd/viommu: Add iommufd_viommu_report_event helper Nicolin Chen
2025-02-25 15:40 ` Jason Gunthorpe
2025-02-22 15:54 ` [PATCH v7 08/14] iommufd/selftest: Require vdev_id when attaching to a nested domain Nicolin Chen
2025-02-22 15:54 ` [PATCH v7 09/14] iommufd/selftest: Add IOMMU_TEST_OP_TRIGGER_VEVENT for vEVENTQ coverage Nicolin Chen
2025-02-22 15:54 ` [PATCH v7 10/14] iommufd/selftest: Add IOMMU_VEVENTQ_ALLOC test coverage Nicolin Chen
2025-02-22 15:54 ` [PATCH v7 11/14] Documentation: userspace-api: iommufd: Update FAULT and VEVENTQ Nicolin Chen
2025-02-22 15:54 ` [PATCH v7 12/14] iommu/arm-smmu-v3: Introduce struct arm_smmu_vmaster Nicolin Chen
2025-02-24 20:35 ` Pranjal Shrivastava
2025-02-24 21:31 ` Nicolin Chen
2025-02-24 21:53 ` Pranjal Shrivastava
2025-02-24 22:24 ` Nicolin Chen
2025-02-24 23:45 ` Nicolin Chen
2025-02-25 16:02 ` Jason Gunthorpe
2025-02-25 16:41 ` Nicolin Chen
2025-02-25 17:08 ` Pranjal Shrivastava
2025-02-25 17:22 ` Nicolin Chen
2025-02-25 16:45 ` Pranjal Shrivastava
2025-02-22 15:54 ` [PATCH v7 13/14] iommu/arm-smmu-v3: Report events that belong to devices attached to vIOMMU Nicolin Chen
2025-02-24 21:35 ` Pranjal Shrivastava
2025-02-24 21:56 ` Nicolin Chen
2025-02-24 23:35 ` Jason Gunthorpe
2025-02-25 16:50 ` Pranjal Shrivastava
2025-02-25 16:47 ` Pranjal Shrivastava
2025-02-25 16:05 ` Jason Gunthorpe [this message]
2025-02-22 15:54 ` [PATCH v7 14/14] iommu/arm-smmu-v3: Set MEV bit in nested STE for DoS mitigations Nicolin Chen
2025-02-24 4:38 ` Pranjal Shrivastava
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