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[memory,v4,09/10] memory: MemoryRegion: Add may-overlap and priority props

Message ID f07f660900a0e27df92c42e09ea83b6d74deba39.1402034413.git.peter.crosthwaite@xilinx.com
State New
Headers show

Commit Message

Peter Crosthwaite June 6, 2014, 6:17 a.m. UTC 
QOM propertyify the .may-overlap and .priority fields. The setters
will re-add the memory as a subregion if needed (i.e. the values change
when the memory region is already contained).

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
---
changed since v2:
Fixed priority getter
Support signed values in priority set/get
changed since v1:
Converted priority to signed type

 include/exec/memory.h |  2 +-
 memory.c              | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 58 insertions(+), 1 deletion(-)
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Patch

diff --git a/include/exec/memory.h b/include/exec/memory.h
index 371c066..117c0d3 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -157,7 +157,7 @@  struct MemoryRegion {
     bool flush_coalesced_mmio;
     MemoryRegion *alias;
     hwaddr alias_offset;
-    int priority;
+    int32_t priority;
     bool may_overlap;
     QTAILQ_HEAD(subregions, MemoryRegion) subregions;
     QTAILQ_ENTRY(MemoryRegion) subregions_link;
diff --git a/memory.c b/memory.c
index fb1d859..e062108 100644
--- a/memory.c
+++ b/memory.c
@@ -962,6 +962,55 @@  static Object *memory_region_resolve_container(Object *obj, void *opaque,
     return OBJECT(mr->parent);
 }
 
+static void memory_region_get_priority(Object *obj, Visitor *v, void *opaque,
+                                       const char *name, Error **errp)
+{
+    MemoryRegion *mr = MEMORY_REGION(obj);
+    Error *local_err = NULL;
+    int32_t value = mr->priority;
+
+    visit_type_int32(v, &value, name, &local_err);
+    if (local_err) {
+        error_propagate(errp, local_err);
+    }
+}
+
+static void memory_region_set_priority(Object *obj, Visitor *v, void *opaque,
+                                       const char *name, Error **errp)
+{
+    MemoryRegion *mr = MEMORY_REGION(obj);
+    Error *local_err = NULL;
+    int32_t value;
+
+    visit_type_int32(v, &value, name, &local_err);
+    if (local_err) {
+        error_propagate(errp, local_err);
+        return;
+    }
+
+    if (mr->priority != value) {
+        mr->priority = value;
+        memory_region_readd_subregion(mr);
+    }
+}
+
+static bool memory_region_get_may_overlap(Object *obj, Error **errp)
+{
+    MemoryRegion *mr = MEMORY_REGION(obj);
+
+    return mr->may_overlap;
+}
+
+static void memory_region_set_may_overlap(Object *obj, bool value, Error **errp)
+{
+    MemoryRegion *mr = MEMORY_REGION(obj);
+
+    if (mr->may_overlap != value) {
+        mr->may_overlap = value;
+        memory_region_readd_subregion(mr);
+    }
+}
+
 static void memory_region_initfn(Object *obj)
 {
     MemoryRegion *mr = MEMORY_REGION(obj);
@@ -985,6 +1034,14 @@  static void memory_region_initfn(Object *obj)
                         memory_region_get_addr,
                         memory_region_set_addr,
                         NULL, NULL, &error_abort);
+    object_property_add(OBJECT(mr), "priority", "uint32",
+                        memory_region_get_priority,
+                        memory_region_set_priority,
+                        NULL, NULL, &error_abort);
+    object_property_add_bool(OBJECT(mr), "may-overlap",
+                             memory_region_get_may_overlap,
+                             memory_region_set_may_overlap,
+                             &error_abort);
 }
 
 static uint64_t unassigned_mem_read(void *opaque, hwaddr addr,