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

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intel_iommu_set_dev_pasid() is only supposed to be used by paging domain,
so limit it.

Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Link: https://lore.kernel.org/r/20241107122234.7424-9-yi.l.liu@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Yi Liu 2024-11-08 10:13:59 +08:00 committed by Joerg Roedel
parent c8596d65b2
commit c33e20869c
1 changed files with 4 additions and 2 deletions
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6
drivers/iommu/intel/iommu.c
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@ -4154,6 +4154,9 @@ static int intel_iommu_set_dev_pasid(struct iommu_domain *domain,
struct dev_pasid_info *dev_pasid;
int ret;
if (WARN_ON_ONCE(!(domain->type & __IOMMU_DOMAIN_PAGING)))
return -EINVAL;
if (!pasid_supported(iommu) || dev_is_real_dma_subdevice(dev))
return -EOPNOTSUPP;
@ -4182,8 +4185,7 @@ static int intel_iommu_set_dev_pasid(struct iommu_domain *domain,
domain_remove_dev_pasid(old, dev, pasid);
if (domain->type & __IOMMU_DOMAIN_PAGING)
intel_iommu_debugfs_create_dev_pasid(dev_pasid);
intel_iommu_debugfs_create_dev_pasid(dev_pasid);
return 0;