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3 Commits

Author SHA1 Message Date
Lu Baolu
b41e38e225 iommu/vt-d: Add nested domain allocation 
This adds the support for IOMMU_HWPT_DATA_VTD_S1 type. And 'nested_parent'
is added to mark the nested parent domain to sanitize the input parent domain.

Link: https://lore.kernel.org/r/20231026044216.64964-8-yi.l.liu@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
 2023-10-26 11:16:34 -03:00
Yi Liu
9838f2bb6b iommu/vt-d: Set the nested domain to a device 
This adds the helper for setting the nested domain to a device hence
enable nested domain usage on Intel VT-d.

Link: https://lore.kernel.org/r/20231026044216.64964-7-yi.l.liu@intel.com
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
 2023-10-26 11:16:34 -03:00
Lu Baolu
79ae1eccd3 iommu/vt-d: Add helper for nested domain allocation 
This adds helper for accepting user parameters and allocate a nested
domain.

Link: https://lore.kernel.org/r/20231026044216.64964-4-yi.l.liu@intel.com
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
 2023-10-26 11:16:33 -03:00