Hi, The former part of this series refactors the IOMMU SVA code by assigning an SVA type of iommu_domain to a shared virtual address and replacing sva_bind/unbind iommu ops with attach/detach_dev_pasid domain ops.
The latter part changes the existing I/O page fault handling framework from only serving SVA to a generic one. Any driver or component could handle the I/O page faults for its domain in its own way by installing an I/O page fault handler. This series overlaps with another series posted here [1]. For the convenience of review, I included all relevant patches in this series. We will solve the overlap problem later. This series is also available on github here [2]. [1] https://lore.kernel.org/lkml/20220315050713.2000518-1-jacob.jun....@linux.intel.com/ [2] https://github.com/LuBaolu/intel-iommu/commits/iommu-sva-refactoring-v1 Please help review and suggest. Best regards, baolu Lu Baolu (11): iommu: Add pasid_bits field in struct dev_iommu iommu: Add iommu_domain type for SVA iommu: Add attach/detach_dev_pasid domain ops iommu/vt-d: Add SVA domain support arm-smmu-v3/sva: Add SVA domain support iommu/sva: Use attach/detach_pasid_dev in SVA interfaces iommu: Remove SVA related callbacks from iommu ops iommu: Handle IO page faults directly iommu: Add iommu_get_domain_for_dev_pasid() iommu: Make IOPF handling framework generic iommu: Rename iommu-sva-lib.{c,h} include/linux/intel-iommu.h | 5 +- include/linux/iommu.h | 95 +++++--- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 25 +- .../iommu/{iommu-sva-lib.h => iommu-sva.h} | 0 .../iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c | 96 ++++---- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 19 +- drivers/iommu/intel/iommu.c | 36 +-- drivers/iommu/intel/svm.c | 85 +++---- drivers/iommu/io-pgfault.c | 69 +----- drivers/iommu/iommu-sva-lib.c | 71 ------ drivers/iommu/iommu-sva.c | 230 ++++++++++++++++++ drivers/iommu/iommu.c | 175 ++++++------- drivers/iommu/Makefile | 2 +- 13 files changed, 515 insertions(+), 393 deletions(-) rename drivers/iommu/{iommu-sva-lib.h => iommu-sva.h} (100%) delete mode 100644 drivers/iommu/iommu-sva-lib.c create mode 100644 drivers/iommu/iommu-sva.c -- 2.25.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
