This patch set improves the PASID id and PASID table management for Intel IOMMU driver.
PATCH 1~3 replace per IOMMU idr name space with a global one. Current per IOMMU idr doesn't work in some cases where one application (associated with a PASID) might talk to two physical devices simultaneously while the two devices could reside behind two different IOMMU units. PATCH 4~9 implement per domain PASID table. Current per IOMMU PASID table implementation is insecure in the cases where multiple devices under one single IOMMU unit support PASID feature. With per domain PASID table, we can achieve finer protection and isolation granularity. Best regards, Lu Baolu Change log: v1->v2: - Patches have been reviewed by "Liu Yi L <yi.l....@intel.com>". - An error case handling was added in PATCH 6/9. - Some commit messages are refined to be more accurate. Lu Baolu (9): iommu/vt-d: Global PASID name space iommu/vt-d: Decouple idr bond pointer from svm iommu/vt-d: Use global PASID for SVM usage iommu/vt-d: Move device_domain_info to header iommu/vt-d: Per domain pasid table interfaces iommu/vt-d: Allocate and free pasid table iommu/vt-d: Calculate PTS value iommu/vt-d: Use per-domain pasid table iommu/vt-d: Clean up PASID talbe management for SVM drivers/iommu/Makefile | 2 +- drivers/iommu/intel-iommu.c | 128 ++++++++++++++++------------------------- drivers/iommu/intel-pasid.c | 135 ++++++++++++++++++++++++++++++++++++++++++++ drivers/iommu/intel-pasid.h | 34 +++++++++++ drivers/iommu/intel-svm.c | 98 ++++++++++++++++---------------- include/linux/intel-iommu.h | 90 +++++++++++++++++++++++++++-- 6 files changed, 352 insertions(+), 135 deletions(-) create mode 100644 drivers/iommu/intel-pasid.c create mode 100644 drivers/iommu/intel-pasid.h -- 2.7.4 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
