Commit 73bcbdc9 authored by James Sewart's avatar James Sewart Committed by Joerg Roedel

iommu/vt-d: Implement apply_resv_region iommu ops entry

Used by iommu.c before creating identity mappings for reserved
ranges to ensure dma-ops won't ever remap these ranges.
Signed-off-by: default avatarJames Sewart <jamessewart@arista.com>
Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 7423e017
...@@ -5549,6 +5549,19 @@ int intel_iommu_enable_pasid(struct intel_iommu *iommu, struct device *dev) ...@@ -5549,6 +5549,19 @@ int intel_iommu_enable_pasid(struct intel_iommu *iommu, struct device *dev)
return ret; return ret;
} }
static void intel_iommu_apply_resv_region(struct device *dev,
struct iommu_domain *domain,
struct iommu_resv_region *region)
{
struct dmar_domain *dmar_domain = to_dmar_domain(domain);
unsigned long start, end;
start = IOVA_PFN(region->start);
end = IOVA_PFN(region->start + region->length - 1);
WARN_ON_ONCE(!reserve_iova(&dmar_domain->iovad, start, end));
}
#ifdef CONFIG_INTEL_IOMMU_SVM #ifdef CONFIG_INTEL_IOMMU_SVM
struct intel_iommu *intel_svm_device_to_iommu(struct device *dev) struct intel_iommu *intel_svm_device_to_iommu(struct device *dev)
{ {
...@@ -5714,6 +5727,7 @@ const struct iommu_ops intel_iommu_ops = { ...@@ -5714,6 +5727,7 @@ const struct iommu_ops intel_iommu_ops = {
.remove_device = intel_iommu_remove_device, .remove_device = intel_iommu_remove_device,
.get_resv_regions = intel_iommu_get_resv_regions, .get_resv_regions = intel_iommu_get_resv_regions,
.put_resv_regions = intel_iommu_put_resv_regions, .put_resv_regions = intel_iommu_put_resv_regions,
.apply_resv_region = intel_iommu_apply_resv_region,
.device_group = pci_device_group, .device_group = pci_device_group,
.dev_has_feat = intel_iommu_dev_has_feat, .dev_has_feat = intel_iommu_dev_has_feat,
.dev_feat_enabled = intel_iommu_dev_feat_enabled, .dev_feat_enabled = intel_iommu_dev_feat_enabled,
......
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