Commit 3855ba2d authored Jun 03, 2019 by Eric Auger Committed by Joerg Roedel Jun 12, 2019

iommu/vt-d: Handle PCI bridge RMRR device scopes in intel_iommu_get_resv_regions



In the case the RMRR device scope is a PCI-PCI bridge, let's check
the device belongs to the PCI sub-hierarchy.

Fixes: 0659b8dc ("iommu/vt-d: Implement reserved region get/put callbacks")

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

parent e143fd45

drivers/iommu/intel-iommu.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -5426,7 +5426,8 @@ static void intel_iommu_get_resv_regions(struct device *device,
		struct iommu_resv_region *resv;
		size_t length;

		if (i_dev != device)
		if (i_dev != device &&
		!is_downstream_to_pci_bridge(device, i_dev))
		continue;

		length = rmrr->end_address - rmrr->base_address + 1;

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