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xen: make xen_create_contiguous_region return the dma address
authorStefano Stabellini <stefano.stabellini@eu.citrix.com>
Wed, 9 Oct 2013 16:56:32 +0000 (16:56 +0000)
committerStefano Stabellini <stefano.stabellini@eu.citrix.com>
Wed, 9 Oct 2013 16:56:32 +0000 (16:56 +0000)
Modify xen_create_contiguous_region to return the dma address of the
newly contiguous buffer.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Changes in v4:
- use virt_to_machine instead of virt_to_bus.


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