Commit 7c204426 authored by Lu Baolu's avatar Lu Baolu Committed by Joerg Roedel
Browse files

iommu/vt-d: Add domain_alloc_paging support 



Add the domain_alloc_paging callback for domain allocation using the
iommu_paging_domain_alloc() interface.

Signed-off-by: default avatarLu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: default avatarJason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241021085125.192333-2-baolu.lu@linux.intel.com


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 8e929cb5

drivers/iommu/intel/iommu.c

+14 −0
Original line number Diff line number Diff line
@@ -4590,6 +4590,19 @@ static struct iommu_domain identity_domain = { 
	},

};



static struct iommu_domain *intel_iommu_domain_alloc_paging(struct device *dev)

{

	struct dmar_domain *dmar_domain;

	bool first_stage;



	first_stage = first_level_by_default(0);

	dmar_domain = paging_domain_alloc(dev, first_stage);

	if (IS_ERR(dmar_domain))

		return ERR_CAST(dmar_domain);



	return &dmar_domain->domain;

}



const struct iommu_ops intel_iommu_ops = {

	.blocked_domain		= &blocking_domain,

	.release_domain		= &blocking_domain,
@@ -4599,6 +4612,7 @@ const struct iommu_ops intel_iommu_ops = { 
	.domain_alloc		= intel_iommu_domain_alloc,

	.domain_alloc_user	= intel_iommu_domain_alloc_user,

	.domain_alloc_sva	= intel_svm_domain_alloc,

	.domain_alloc_paging	= intel_iommu_domain_alloc_paging,

	.probe_device		= intel_iommu_probe_device,

	.release_device		= intel_iommu_release_device,

	.get_resv_regions	= intel_iommu_get_resv_regions,