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[35.198.224.169]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2230a0a61fcsm17251405ad.191.2025.02.25.09.57.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Feb 2025 09:57:19 -0800 (PST) Date: Tue, 25 Feb 2025 17:57:09 +0000 From: Pranjal Shrivastava To: Nicolin Chen Cc: jgg@nvidia.com, 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, 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, patches@lists.linux.dev Subject: Re: [PATCH v8 13/14] iommu/arm-smmu-v3: Report events that belong to devices attached to vIOMMU Message-ID: References: <7f6813dc2b62f5f396ac3172dc2a7d9bf3b47536.1740504232.git.nicolinc@nvidia.com> Precedence: bulk X-Mailing-List: linux-doc@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: <7f6813dc2b62f5f396ac3172dc2a7d9bf3b47536.1740504232.git.nicolinc@nvidia.com> On Tue, Feb 25, 2025 at 09:25:41AM -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 > Reviewed-by: Jason Gunthorpe > Reviewed-by: Pranjal Shrivastavat > Signed-off-by: Nicolin Chen > --- > 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(-) > Apologies for my spelling error in [1]. It's supposed to be: Reviewed-by: Pranjal Shrivastava Correct spelling in [2]. Thanks, Praan [1] https://lore.kernel.org/all/Z73zvIbsXzJMCaNt@google.com/ [2] https://lore.kernel.org/all/Z730M3XptvDRObBp@google.com/