diff options
Diffstat (limited to 'drivers/iommu/amd')
| -rw-r--r-- | drivers/iommu/amd/amd_iommu.h | 3 | ||||
| -rw-r--r-- | drivers/iommu/amd/pasid.c | 6 |
2 files changed, 7 insertions, 2 deletions
diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h index 38509e1019e9..1bef5d55b2f9 100644 --- a/drivers/iommu/amd/amd_iommu.h +++ b/drivers/iommu/amd/amd_iommu.h @@ -53,7 +53,8 @@ struct iommu_domain *amd_iommu_domain_alloc_sva(struct device *dev, struct mm_struct *mm); void amd_iommu_domain_free(struct iommu_domain *dom); int iommu_sva_set_dev_pasid(struct iommu_domain *domain, - struct device *dev, ioasid_t pasid); + struct device *dev, ioasid_t pasid, + struct iommu_domain *old); void amd_iommu_remove_dev_pasid(struct device *dev, ioasid_t pasid, struct iommu_domain *domain); diff --git a/drivers/iommu/amd/pasid.c b/drivers/iommu/amd/pasid.c index 0657b9373be5..8c73a30c2800 100644 --- a/drivers/iommu/amd/pasid.c +++ b/drivers/iommu/amd/pasid.c @@ -100,7 +100,8 @@ static const struct mmu_notifier_ops sva_mn = { }; int iommu_sva_set_dev_pasid(struct iommu_domain *domain, - struct device *dev, ioasid_t pasid) + struct device *dev, ioasid_t pasid, + struct iommu_domain *old) { struct pdom_dev_data *pdom_dev_data; struct protection_domain *sva_pdom = to_pdomain(domain); @@ -108,6 +109,9 @@ int iommu_sva_set_dev_pasid(struct iommu_domain *domain, unsigned long flags; int ret = -EINVAL; + if (old) + return -EOPNOTSUPP; + /* PASID zero is used for requests from the I/O device without PASID */ if (!is_pasid_valid(dev_data, pasid)) return ret; |