OpenCloudOS-Kernel/drivers/iommu/intel
Lu Baolu c7be17c290 iommu/vt-d: Add device_block_translation() helper
If domain attaching to device fails, the IOMMU driver should bring the
device to blocking DMA state. The upper layer is expected to recover it
by attaching a new domain. Use device_block_translation() in the error
path of dev_attach to make the behavior specific.

The difference between device_block_translation() and the previous
dmar_remove_one_dev_info() is that, in the scalable mode, it is the
RID2PASID entry instead of context entry being cleared. As a result,
enabling PCI capabilities is moved up.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20221118132451.114406-3-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2022-11-22 14:05:20 +01:00
..
Kconfig Merge branches 'apple/dart', 'arm/mediatek', 'arm/omap', 'arm/smmu', 'virtio', 'x86/vt-d', 'x86/amd' and 'core' into next 2022-09-26 15:52:31 +02:00
Makefile iommu/vt-d: Add common code for dmar latency performance monitors 2021-06-10 09:06:13 +02:00
cap_audit.c iommu/vt-d: Rename cap_5lp_support to cap_fl5lp_support 2022-09-26 15:52:25 +02:00
cap_audit.h iommu/vt-d: Check FL and SL capability sanity in scalable mode 2021-10-18 12:31:48 +02:00
debugfs.c iommu/vt-d: Replace spin_lock_irqsave() with spin_lock() 2022-07-15 10:21:36 +02:00
dmar.c Revert "iommu/vt-d: Fix possible recursive locking in intel_iommu_init()" 2022-09-21 10:22:54 +02:00
iommu.c iommu/vt-d: Add device_block_translation() helper 2022-11-22 14:05:20 +01:00
iommu.h iommu/vt-d: Avoid unnecessary global DMA cache invalidation 2022-09-26 15:52:26 +02:00
irq_remapping.c iommu/vt-d: Avoid unnecessary global IRTE cache invalidation 2022-09-26 15:52:26 +02:00
pasid.c iommu/vt-d: Set SRE bit only when hardware has SRS cap 2022-11-19 10:46:52 +01:00
pasid.h iommu/vt-d: Remove clearing translation data in disable_dmar_iommu() 2022-07-15 10:21:34 +02:00
perf.c iommu/vt-d: Move include/linux/intel-iommu.h under iommu 2022-07-15 10:21:31 +02:00
perf.h iommu/vt-d: Add common code for dmar latency performance monitors 2021-06-10 09:06:13 +02:00
svm.c iommu/vt-d: Rename cap_5lp_support to cap_fl5lp_support 2022-09-26 15:52:25 +02:00
trace.c iommu/vt-d: Move trace/events/intel_iommu.h under iommu 2022-07-15 10:21:28 +02:00
trace.h iommu/vt-d: Move include/linux/intel-iommu.h under iommu 2022-07-15 10:21:31 +02:00