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| author | Lu Baolu <baolu.lu@linux.intel.com> | 2018-12-10 04:59:03 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2018-12-11 12:45:59 +0300 |
| commit | 7373a8cc381978cfafa4b0285cdd935682f1b2d2 (patch) | |
| tree | a512068b7da371039d0e7911924bde64c1ec3b62 /drivers/iommu/intel-pasid.h | |
| parent | ca6e322d60498087a160fad1c4ea8765ff2d21e7 (diff) | |
| download | linux-7373a8cc381978cfafa4b0285cdd935682f1b2d2.tar.xz | |
iommu/vt-d: Setup context and enable RID2PASID support
This patch enables the translation for requests without PASID in
the scalable mode by setting up the root and context entries.
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Sanjay Kumar <sanjay.k.kumar@intel.com>
Signed-off-by: Liu Yi L <yi.l.liu@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/intel-pasid.h')
| -rw-r--r-- | drivers/iommu/intel-pasid.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iommu/intel-pasid.h b/drivers/iommu/intel-pasid.h index d6f4fead4491..55bb8715329d 100644 --- a/drivers/iommu/intel-pasid.h +++ b/drivers/iommu/intel-pasid.h @@ -17,6 +17,7 @@ #define PASID_PTE_PRESENT 1 #define PDE_PFN_MASK PAGE_MASK #define PASID_PDE_SHIFT 6 +#define MAX_NR_PASID_BITS 20 /* * Domain ID reserved for pasid entries programmed for first-level |