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| author | Lu Baolu <baolu.lu@linux.intel.com> | 2018-12-10 09:58:59 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2018-12-11 10:45:58 +0100 |
| commit | 3b33d4ab3217337f648f7ff3e57e755e6444c748 (patch) | |
| tree | d3d57942c0777b924091d9ef3884251d8a6dc861 /drivers/iommu/intel-pasid.c | |
| parent | 5d308fc1ecf5351418a4f003ccb74dc91b424bd1 (diff) | |
iommu/vt-d: Reserve a domain id for FL and PT modes
Vt-d spec rev3.0 (section 6.2.3.1) requires that each pasid
entry for first-level or pass-through translation should be
programmed with a domain id different from those used for
second-level or nested translation. It is recommended that
software could use a same domain id for all first-only and
pass-through translations.
This reserves a domain id for first-level and pass-through
translations.
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Kevin Tian <kevin.tian@intel.com>
Cc: Liu Yi L <yi.l.liu@intel.com>
Cc: Sanjay Kumar <sanjay.k.kumar@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/intel-pasid.c')
0 files changed, 0 insertions, 0 deletions