diff options
| author | Lu Baolu <baolu.lu@linux.intel.com> | 2024-11-04 09:40:21 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2024-11-05 13:32:15 +0100 |
| commit | 7c204426b81822ba768b3a5e5393b1489917fb84 (patch) | |
| tree | d0e93d8b975e9bb112c202ff3e4051a10e422b81 /drivers/iommu/intel/iommu.c | |
| parent | 8e929cb546ee42c9a61d24fae60605e9e3192354 (diff) | |
| download | lwn-7c204426b81822ba768b3a5e5393b1489917fb84.tar.gz lwn-7c204426b81822ba768b3a5e5393b1489917fb84.zip | |
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: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241021085125.192333-2-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/intel/iommu.c')
| -rw-r--r-- | drivers/iommu/intel/iommu.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 9f6b0780f2ef..4803e0cb8279 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -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, |