iommu/vt-d: Allow interrupts from the entire bus for aliased devices

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When a device has multiple aliases that all are from the same bus,
we program the IRTE to accept requests from any matching device on the
bus.

This is so NTB devices which can have requests from multiple bus-devfns
can pass MSI interrupts through across the bridge.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Logan Gunthorpe 2019-02-13 10:54:46 -07:00 • committed by Joerg Roedel

parent 9ca8261173

commit 3f0c625c6a

1 changed files with 15 additions and 0 deletions

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drivers/iommu/intel_irq_remapping.c

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