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iommu/amd: Implement apply_dm_region call-back
It is used to reserve the dm-regions in the iova-tree. Signed-off-by: Joerg Roedel <jroedel@suse.de>
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1 changed files with 15 additions and 0 deletions
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@ -3385,6 +3385,20 @@ static void amd_iommu_put_dm_regions(struct device *dev,
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kfree(entry);
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}
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static void amd_iommu_apply_dm_region(struct device *dev,
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struct iommu_domain *domain,
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struct iommu_dm_region *region)
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{
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struct protection_domain *pdomain = to_pdomain(domain);
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struct dma_ops_domain *dma_dom = pdomain->priv;
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unsigned long start, end;
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start = IOVA_PFN(region->start);
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end = IOVA_PFN(region->start + region->length);
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WARN_ON_ONCE(reserve_iova(&dma_dom->iovad, start, end) == NULL);
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}
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static const struct iommu_ops amd_iommu_ops = {
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.capable = amd_iommu_capable,
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.domain_alloc = amd_iommu_domain_alloc,
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@ -3400,6 +3414,7 @@ static const struct iommu_ops amd_iommu_ops = {
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.device_group = amd_iommu_device_group,
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.get_dm_regions = amd_iommu_get_dm_regions,
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.put_dm_regions = amd_iommu_put_dm_regions,
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.apply_dm_region = amd_iommu_apply_dm_region,
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.pgsize_bitmap = AMD_IOMMU_PGSIZES,
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};
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