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Allocate a domain from a group. Automatically obtains the iommu_ops to use
from the device list of the group. Convert the internal callers to use it.
Tested-by: Steven Price <steven.price@arm.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/21-v8-81230027b2fa+9d-iommu_all_defdom_jgg@nvidia.com

Signed-off-by: Joerg Roedel <jroedel@suse.de>