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[RFC,v1,03/25] memory: Coreify subregion add functionality

Message ID a0d203bcaf7f8abf154d8e89cba620b6a030ccba.1400204799.git.peter.crosthwaite@xilinx.com
State New
Headers show

Commit Message

Peter Crosthwaite May 16, 2014, 1:51 a.m. UTC 
Split off the core looping code that actually adds subregions into
it's own fn. This prepares support for Memory Region qomification
where setting the MR address or parent via QOM will back onto this more
minimal function.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
---

 memory.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)
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Patch

diff --git a/memory.c b/memory.c
index 1352881..dd0a576 100644
--- a/memory.c
+++ b/memory.c
@@ -1410,18 +1410,15 @@  void memory_region_del_eventfd(MemoryRegion *mr,
     memory_region_transaction_commit();
 }
 
-static void memory_region_add_subregion_common(MemoryRegion *mr,
-                                               hwaddr offset,
-                                               MemoryRegion *subregion)
+static void do_memory_region_add_subregion_common(MemoryRegion *subregion)
 {
+    hwaddr offset = subregion->addr;
+    MemoryRegion *mr = subregion->parent;
     MemoryRegion *other;
 
     memory_region_transaction_begin();
 
-    assert(!subregion->parent);
     memory_region_ref(subregion);
-    subregion->parent = mr;
-    subregion->addr = offset;
     QTAILQ_FOREACH(other, &mr->subregions, subregions_link) {
         if (subregion->may_overlap || other->may_overlap) {
             continue;
@@ -1455,6 +1452,15 @@  done:
     memory_region_transaction_commit();
 }
 
+static void memory_region_add_subregion_common(MemoryRegion *mr,
+                                               hwaddr offset,
+                                               MemoryRegion *subregion)
+{
+    assert(!subregion->parent);
+    subregion->parent = mr;
+    subregion->addr = offset;
+    do_memory_region_add_subregion_common(subregion);
+}
 
 void memory_region_add_subregion(MemoryRegion *mr,
                                  hwaddr offset,