memory: MemoryRegion: Add size property
To allow devices to dynamically resize the device. The motivation is
to allow devices with variable size to init their memory_region
without size early and then correctly populate size at realize() time.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/memory.c b/memory.c
index 834959b..64d7176 100644
--- a/memory.c
+++ b/memory.c
@@ -971,6 +971,15 @@
return mr->may_overlap;
}
+static void memory_region_get_size(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ MemoryRegion *mr = MEMORY_REGION(obj);
+ uint64_t value = memory_region_size(mr);
+
+ visit_type_uint64(v, &value, name, errp);
+}
+
static void memory_region_initfn(Object *obj)
{
MemoryRegion *mr = MEMORY_REGION(obj);
@@ -1002,6 +1011,10 @@
memory_region_get_may_overlap,
NULL, /* memory_region_set_may_overlap */
&error_abort);
+ object_property_add(OBJECT(mr), "size", "uint64",
+ memory_region_get_size,
+ NULL, /* memory_region_set_size, */
+ NULL, NULL, &error_abort);
}
static uint64_t unassigned_mem_read(void *opaque, hwaddr addr,
