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

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When reading the vtd specification and especially the
Reserved Memory Region Reporting Structure chapter,
it is not obvious a device scope element cannot be a
PCI-PCI bridge, in which case all downstream ports are
likely to access the reserved memory region. Let's handle
this case in device_has_rmrr.

Fixes: ea2447f700 ("intel-iommu: Prevent devices with RMRRs from being placed into SI Domain")

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>

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Eric Auger 2019-06-03 08:53:33 +02:00 • committed by Joerg Roedel

parent b9a7f98164

commit e143fd4598

1 changed files with 2 additions and 1 deletions

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drivers/iommu/intel-iommu.c

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