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Message-ID: <cover.1760312725.git.nicolinc@nvidia.com> Date: Sun, 12 Oct 2025 17:04:57 -0700 From: Nicolin Chen <nicolinc@...dia.com> To: <joro@...tes.org>, <jgg@...dia.com>, <kevin.tian@...el.com> CC: <suravee.suthikulpanit@....com>, <will@...nel.org>, <robin.murphy@....com>, <sven@...nel.org>, <j@...nau.net>, <jean-philippe@...aro.org>, <robin.clark@....qualcomm.com>, <dwmw2@...radead.org>, <baolu.lu@...ux.intel.com>, <yong.wu@...iatek.com>, <matthias.bgg@...il.com>, <angelogioacchino.delregno@...labora.com>, <tjeznach@...osinc.com>, <pjw@...nel.org>, <palmer@...belt.com>, <aou@...s.berkeley.edu>, <heiko@...ech.de>, <schnelle@...ux.ibm.com>, <mjrosato@...ux.ibm.com>, <wens@...e.org>, <jernej.skrabec@...il.com>, <samuel@...lland.org>, <thierry.reding@...il.com>, <jonathanh@...dia.com>, <iommu@...ts.linux.dev>, <linux-kernel@...r.kernel.org>, <asahi@...ts.linux.dev>, <linux-arm-kernel@...ts.infradead.org>, <linux-arm-msm@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>, <linux-riscv@...ts.infradead.org>, <linux-rockchip@...ts.infradead.org>, <linux-s390@...r.kernel.org>, <linux-sunxi@...ts.linux.dev>, <linux-tegra@...r.kernel.org>, <virtualization@...ts.linux.dev>, <patches@...ts.linux.dev> Subject: [PATCH v1 00/20] iommu: Introduce and roll out test_dev domain op Add a new test_dev domain op for drivers to run a compatibility test prior to the actual attachment at the driver level. Any incompatible attachment will be rejected early, allowing the iommu core to postpone any concurrent attachment during a device reset state. This is a preparatory series for new iommu_dev_reset APIs: https://lore.kernel.org/all/cover.1756682135.git.nicolinc@nvidia.com/ The change is a must to keep attach uAPI behavior consistent. This is on github: https://github.com/nicolinc/iommufd/tree/iommu_test_dev-v1 Nicolin Chen (20): iommu: Lock group->mutex in iommu_deferred_attach() iommu: Introduce a test_dev domain op and an internal helper iommu/arm-smmu-v3: Implement arm_smmu_domain_test_dev iommu/intel: Implement test_dev callbacks to domain ops iommu/amd: Implement test_dev callbacks to domain ops iommu/arm-smmu: Implement arm_smmu_test_dev iommu/qcom_iommu: Implement test_dev callbacks to domain ops iommu/riscv: Implement riscv_iommu_test_paging_domain iommu/mkt_iommu: Implement mtk_iommu_test_device iommu/apple-dart: Implement test_dev callbacks to domain ops iommu/ipmmu-vmsa: Implement ipmmu_domain_test_device iommu/sun50i-iommu: Implement sun50i_iommu_domain_test_device iommu/rockchip-iommu: Implement rk_iommu_identity_test_dev iommu/msm_iommu: Implement msm_iommu_domain_test_dev iommu/fsl_pamu_domain: Implement fsl_pamu_domain_test_device iommu/omap-iommu: Implement omap_iommu_domain_test_dev iommu/s390-iommu: Implement s390_iommu_domain_test_device iommufd/selftest: Implement mock_domain_nop_test iommu/virtio-iommu: Implement viommu_domain_test_dev iommu/tegra-smmu: Implement tegra_smmu_domain_test_dev drivers/iommu/amd/amd_iommu.h | 3 - drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 2 + include/linux/iommu.h | 17 ++- drivers/iommu/amd/iommu.c | 27 ++-- drivers/iommu/amd/pasid.c | 29 ++-- drivers/iommu/apple-dart.c | 50 +++++-- .../arm/arm-smmu-v3/arm-smmu-v3-iommufd.c | 6 +- .../iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c | 4 +- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 113 ++++++++++------ drivers/iommu/arm/arm-smmu/arm-smmu.c | 116 +++++++++------- drivers/iommu/arm/arm-smmu/qcom_iommu.c | 46 +++++-- drivers/iommu/fsl_pamu_domain.c | 50 +++++-- drivers/iommu/intel/iommu.c | 66 ++++++---- drivers/iommu/intel/nested.c | 29 ++-- drivers/iommu/intel/svm.c | 11 +- drivers/iommu/iommu.c | 124 +++++++++++++----- drivers/iommu/iommufd/selftest.c | 45 +++++-- drivers/iommu/ipmmu-vmsa.c | 38 ++++-- drivers/iommu/msm_iommu.c | 31 ++++- drivers/iommu/mtk_iommu.c | 17 ++- drivers/iommu/omap-iommu.c | 41 +++--- drivers/iommu/riscv/iommu.c | 16 ++- drivers/iommu/rockchip-iommu.c | 18 ++- drivers/iommu/s390-iommu.c | 22 +++- drivers/iommu/sun50i-iommu.c | 16 ++- drivers/iommu/tegra-smmu.c | 23 ++-- drivers/iommu/virtio-iommu.c | 16 ++- 27 files changed, 671 insertions(+), 305 deletions(-) -- 2.43.0
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