diff options
| author | Sohil Mehta <sohil.mehta@intel.com> | 2018-09-11 17:11:40 -0700 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2018-09-25 14:33:44 +0200 |
| commit | a6d268c619d6765322f2fbdd1d7d2769ebc04cb2 (patch) | |
| tree | b43f7f79937e36dc2277b5d1bd617b0beee61c50 /lib | |
| parent | 6825d3ea6cdea68694a99a7f23c72d937fabc011 (diff) | |
iommu/vt-d: Add debugfs support for Interrupt remapping
Debugfs extension for Intel IOMMU to dump Interrupt remapping table
entries for Interrupt remapping and Interrupt posting.
The file /sys/kernel/debug/iommu/intel/ir_translation_struct provides
detailed information, such as Index, Source Id, Destination Id, Vector
and the IRTE values for entries with the present bit set, in the format
shown.
Remapped Interrupt supported on IOMMU: dmar1
IR table address:85e500000
Entry SrcID DstID Vct IRTE_high IRTE_low
24 01:00.0 00000001 24 0000000000040100 000000010024000d
25 01:00.0 00000004 22 0000000000040100 000000040022000d
Posted Interrupt supported on IOMMU: dmar5
IR table address:85ec00000
Entry SrcID PDA_high PDA_low Vct IRTE_high IRTE_low
4 43:00.0 0000000f ff765980 41 0000000f00044300 ff76598000418001
5 43:00.0 0000000f ff765980 51 0000000f00044300 ff76598000518001
Cc: Lu Baolu <baolu.lu@linux.intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Co-Developed-by: Gayatri Kammela <gayatri.kammela@intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sohil Mehta <sohil.mehta@intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions