diff options
| author | Eric Auger | 2019-06-03 08:53:34 +0200 |
|---|---|---|
| committer | Joerg Roedel | 2019-06-12 10:32:59 +0200 |
| commit | 3855ba2d834d8f7727b7f992ff781fa66cc09f96 (patch) | |
| tree | b60b0250fb1f7d1a656fe4709b5f4e898d1e5c02 /drivers/iommu | |
| parent | iommu/vt-d: Handle RMRR with PCI bridge device scopes (diff) | |
| download | kernel-qcow2-linux-3855ba2d834d8f7727b7f992ff781fa66cc09f96.tar.gz kernel-qcow2-linux-3855ba2d834d8f7727b7f992ff781fa66cc09f96.tar.xz kernel-qcow2-linux-3855ba2d834d8f7727b7f992ff781fa66cc09f96.zip | |
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: 0659b8dc45a6 ("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>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 0d7d177673dd..5de48ed1f763 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -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; |