exec: move listener from AddressSpaceDispatch to AddressSpace

This will help having two copies of AddressSpaceDispatch during the
recreation of the radix tree (one being built, and one that is complete
and will be protected by RCU).  We do not want to have to unregister and
re-register the listener.

Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/exec/memory.h b/include/exec/memory.h
index 8355bdb29a..248c89bdb6 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -209,6 +209,8 @@ struct AddressSpace {
     int ioeventfd_nb;
     struct MemoryRegionIoeventfd *ioeventfds;
     struct AddressSpaceDispatch *dispatch;
+    MemoryListener dispatch_listener;
+
     QTAILQ_ENTRY(AddressSpace) address_spaces_link;
 };