Peter Xu fe215b0cbb intel-iommu: introduce vtd_page_walk_info
During the recursive page walking of IOVA page tables, some stack
variables are constant variables and never changed during the whole page
walking procedure.  Isolate them into a struct so that we don't need to
pass those contants down the stack every time and multiple times.

CC: QEMU Stable <qemu-stable@nongnu.org>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-05-23 17:33:58 +03:00
..
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