pm24.git/drivers/iommu/intel, branch master

iommu: Rename ops->domain_alloc_user() to domain_alloc_paging_flags()

2024-11-22T18:43:45Z

Now that the main domain allocating path is calling this function it doesn't make sense to leave it named _user. Change the name to alloc_paging_flags() to mirror the new iommu_paging_domain_alloc_flags() function. A driver should implement only one of ops->domain_alloc_paging() or ops->domain_alloc_paging_flags(). The former is a simpler interface with less boiler plate that the majority of drivers use. The latter is for drivers with a greater feature set (PASID, multiple page table support, advanced iommufd support, nesting, etc). Additional patches will be needed to achieve this. Link: https://patch.msgid.link/r/2-v1-c252ebdeb57b+329-iommu_paging_flags_jgg@nvidia.com Reviewed-by: Lu Baolu Signed-off-by: Jason Gunthorpe

iommu: Add ops->domain_alloc_nested()

2024-11-22T18:43:45Z

It turns out all the drivers that are using this immediately call into another function, so just make that function directly into the op. This makes paging=NULL for domain_alloc_user and we can remove the argument in the next patch. The function mirrors the similar op in the viommu that allocates a nested domain on top of the viommu's nesting parent. This version supports cases where a viommu is not being used. Link: https://patch.msgid.link/r/1-v1-c252ebdeb57b+329-iommu_paging_flags_jgg@nvidia.com Reviewed-by: Lu Baolu Signed-off-by: Jason Gunthorpe

Merge branches 'intel/vt-d', 'amd/amd-vi' and 'iommufd/arm-smmuv3-nested' into next

2024-11-15T08:27:43Z

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

2024-11-08T13:04:57Z

Add intel_nested_set_dev_pasid() to set a nested type domain to a PASID of a device. Co-developed-by: Lu Baolu Signed-off-by: Lu Baolu Reviewed-by: Kevin Tian Signed-off-by: Yi Liu Link: https://lore.kernel.org/r/20241107122234.7424-12-yi.l.liu@intel.com Signed-off-by: Joerg Roedel

iommu/vt-d: Make identity_domain_set_dev_pasid() to handle domain replacement

2024-11-08T13:04:56Z

Let identity_domain_set_dev_pasid() call the pasid replace helpers hence be able to do domain replacement. Reviewed-by: Lu Baolu Reviewed-by: Kevin Tian Signed-off-by: Yi Liu Link: https://lore.kernel.org/r/20241107122234.7424-11-yi.l.liu@intel.com Signed-off-by: Lu Baolu Signed-off-by: Joerg Roedel

iommu/vt-d: Make intel_svm_set_dev_pasid() support domain replacement

2024-11-08T13:04:55Z

Make intel_svm_set_dev_pasid() support replacement. Signed-off-by: Yi Liu Link: https://lore.kernel.org/r/20241107122234.7424-10-yi.l.liu@intel.com Signed-off-by: Lu Baolu Signed-off-by: Joerg Roedel

iommu/vt-d: Limit intel_iommu_set_dev_pasid() for paging domain

2024-11-08T13:04:55Z

intel_iommu_set_dev_pasid() is only supposed to be used by paging domain, so limit it. Reviewed-by: Lu Baolu Reviewed-by: Kevin Tian Signed-off-by: Yi Liu Link: https://lore.kernel.org/r/20241107122234.7424-9-yi.l.liu@intel.com Signed-off-by: Lu Baolu Signed-off-by: Joerg Roedel

iommu/vt-d: Make intel_iommu_set_dev_pasid() to handle domain replacement

2024-11-08T13:04:54Z

Let intel_iommu_set_dev_pasid() call the pasid replace helpers hence be able to do domain replacement. Reviewed-by: Lu Baolu Reviewed-by: Kevin Tian Signed-off-by: Yi Liu Link: https://lore.kernel.org/r/20241107122234.7424-8-yi.l.liu@intel.com Signed-off-by: Lu Baolu Signed-off-by: Joerg Roedel

iommu/vt-d: Add iommu_domain_did() to get did

2024-11-08T13:04:53Z

domain_id_iommu() does not support SVA type and identity type domains. Add iommu_domain_did() to support all domain types. Signed-off-by: Yi Liu Link: https://lore.kernel.org/r/20241107122234.7424-7-yi.l.liu@intel.com Signed-off-by: Lu Baolu Signed-off-by: Joerg Roedel

iommu/vt-d: Consolidate the struct dev_pasid_info add/remove

2024-11-08T13:04:52Z

The domain_add_dev_pasid() and domain_remove_dev_pasid() are added to consolidate the adding/removing of the struct dev_pasid_info. Besides, it includes the cache tag assign/unassign as well. This also prepares for adding domain replacement for pasid. The set_dev_pasid callbacks need to deal with the dev_pasid_info for both old and new domain. These two helpers make the life easier. intel_iommu_set_dev_pasid() and intel_svm_set_dev_pasid() are updated to use the helpers. Reviewed-by: Lu Baolu Reviewed-by: Kevin Tian Signed-off-by: Yi Liu Link: https://lore.kernel.org/r/20241107122234.7424-6-yi.l.liu@intel.com Signed-off-by: Lu Baolu Signed-off-by: Joerg Roedel