memory: add memory_region_is_logging()

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

diff --git a/memory.c b/memory.c
index 01baeac..6e61635 100644 (file)
--- a/memory.c
+++ b/memory.c
@@ -1074,6 +1074,11 @@ bool memory_region_is_ram(MemoryRegion *mr)
     return mr->ram;
 }
 
+bool memory_region_is_logging(MemoryRegion *mr)
+{
+    return mr->dirty_log_mask;
+}
+
 bool memory_region_is_rom(MemoryRegion *mr)
 {
     return mr->ram && mr->readonly;

diff --git a/memory.h b/memory.h
index 91d6e8a..87fb974 100644 (file)
--- a/memory.h
+++ b/memory.h
@@ -277,6 +277,15 @@ uint64_t memory_region_size(MemoryRegion *mr);
 bool memory_region_is_ram(MemoryRegion *mr);
 
 /**
+ * memory_region_is_logging: return whether a memory region is logging writes
+ *
+ * Returns %true if the memory region is logging writes
+ *
+ * @mr: the memory region being queried
+ */
+bool memory_region_is_logging(MemoryRegion *mr);
+
+/**
  * memory_region_is_rom: check whether a memory region is ROM
  *
  * Returns %true is a memory region is read-only memory.