tree 4a3939f87fddb0c4590dcf80de2f267ee71ebf75
parent 7fac322cbd34588fbff5577fb541ad1d04e18ac3
author Avi Kivity <avi@redhat.com> 1329158732 +0200
committer Michael S. Tsirkin <mst@redhat.com> 1330468968 +0200

memory: allow phys_map tree paths to terminate early

When storing large contiguous ranges in phys_map, all values tend to
be the same pointers to a single MemoryRegionSection.  Collapse them
by marking nodes with level > 0 as leaves.  This reduces tree memory
usage dramatically.

Signed-off-by: Avi Kivity <avi@redhat.com>