memory: add memory_region_is_ram()

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

1 files changed, 8 insertions, 0 deletions

diff --git a/memory.c b/memory.c
index a7e615ad15..4264b42222 100644
--- a/memory.c
+++ b/memory.c
@@ -832,6 +832,7 @@ void memory_region_init(MemoryRegion *mr,
     mr->offset = 0;
     mr->enabled = true;
     mr->terminates = false;
+    mr->ram = false;
     mr->readable = true;
     mr->readonly = false;
     mr->destructor = memory_region_destructor_none;
@@ -998,6 +999,7 @@ void memory_region_init_ram(MemoryRegion *mr,
                             uint64_t size)
 {
     memory_region_init(mr, name, size);
+    mr->ram = true;
     mr->terminates = true;
     mr->destructor = memory_region_destructor_ram;
     mr->ram_addr = qemu_ram_alloc(dev, name, size, mr);
@@ -1011,6 +1013,7 @@ void memory_region_init_ram_ptr(MemoryRegion *mr,
                                 void *ptr)
 {
     memory_region_init(mr, name, size);
+    mr->ram = true;
     mr->terminates = true;
     mr->destructor = memory_region_destructor_ram_from_ptr;
     mr->ram_addr = qemu_ram_alloc_from_ptr(dev, name, size, ptr, mr);
@@ -1066,6 +1069,11 @@ uint64_t memory_region_size(MemoryRegion *mr)
     return int128_get64(mr->size);
 }
 
+bool memory_region_is_ram(MemoryRegion *mr)
+{
+    return mr->ram;
+}
+
 void memory_region_set_offset(MemoryRegion *mr, target_phys_addr_t offset)
 {
     mr->offset = offset;