iommu/vt-d: Introduce helper functions to make code symmetric for readability

Introduce domain_attach_iommu()/domain_detach_iommu() and refine
iommu_attach_domain()/iommu_detach_domain() to make code symmetric
and improve readability.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Jiang Liu 2014-07-11 14:19:28 +08:00 • committed by Joerg Roedel
commit fb170fb4c5