memory: introduce memory_region_present
This new API will avoid having too many memory_region_ref/unref
in paths that currently use memory_region_find.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/memory.c b/memory.c
index e04d519..24027c5 100644
--- a/memory.c
+++ b/memory.c
@@ -1478,6 +1478,15 @@
sizeof(FlatRange), cmp_flatrange_addr);
}
+bool memory_region_present(MemoryRegion *parent, hwaddr addr)
+{
+ MemoryRegion *mr = memory_region_find(parent, addr, 1).mr;
+ if (!mr) {
+ return false;
+ }
+ return true;
+}
+
MemoryRegionSection memory_region_find(MemoryRegion *mr,
hwaddr addr, uint64_t size)
{