[PATCH v8 5/8] memory: Allow disabling re-entrancy checking per-MR

[Alexander Bulekov]

Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
---
 include/exec/memory.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/exec/memory.h b/include/exec/memory.h
index 6c0a5e68d3..4e9531bd8a 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -793,6 +793,9 @@ struct MemoryRegion {
     unsigned ioeventfd_nb;
     MemoryRegionIoeventfd *ioeventfds;
     RamDiscardManager *rdm; /* Only for RAM */
+
+    /* For devices designed to perform re-entrant IO into their own IO MRs */
+    bool disable_reentrancy_guard;
 };
 
 struct IOMMUMemoryRegion {
-- 
2.39.0