iommu/vt-d: Add set_dev_pasid callback for dma domain

Browse source

This allows the upper layers to set a domain to a PASID of a device
if the PASID feature is supported by the IOMMU hardware. The typical
use cases are, for example, kernel DMA with PASID and hardware
assisted mediated device drivers.

The attaching device and pasid information is tracked in a per-domain
list and is used for IOTLB and devTLB invalidation.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20230802212427.1497170-8-jacob.jun.pan@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

...

This commit is contained in:

Lu Baolu 2023-08-09 20:48:00 +08:00 • committed by Joerg Roedel

parent 37f900e718

commit 7d0c9da6c1

2 changed files with 106 additions and 5 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

104

drivers/iommu/intel/iommu.c

View file

7

drivers/iommu/intel/iommu.h

View file