@@ -1559,7 +1559,8 @@ MemoryRegionSection memory_region_find(MemoryRegion *mr,
as = memory_region_to_address_space(root);
range = addrrange_make(int128_make64(addr), int128_make64(size));
- view = address_space_get_flatview(as);
+ rcu_read_lock();
+ view = rcu_dereference(&as->current_map);
fr = flatview_lookup(view, range);
if (!fr) {
return ret;
@@ -1580,7 +1581,7 @@ MemoryRegionSection memory_region_find(MemoryRegion *mr,
ret.readonly = fr->readonly;
memory_region_ref(ret.mr);
- flatview_unref(view);
+ rcu_read_unlock();
return ret;
}
Do the entire lookup under RCU. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> --- memory.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)