[PATCH 3/8] xen/grant-table: Allow allocating buffers suitable for DMA

From: Oleksandr Andrushchenko Extend grant table module API to allow allocating buffers that can be used for DMA operations and mapping foreign grant references on top of those. The resulting buffer is similar to the one allocated by the balloon driver in terms

[PATCH 3/8] xen/grant-table: Allow allocating buffers suitable for DMA

From: Oleksandr Andrushchenko Extend grant table module API to allow allocating buffers that can be used for DMA operations and mapping foreign grant references on top of those. The resulting buffer is similar to the one allocated by the balloon driver in terms that proper memory reservation is