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Diffstat (limited to 'hw/sysbus.c')
-rw-r--r--hw/sysbus.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/hw/sysbus.c b/hw/sysbus.c
index f8f1746658..f39768b6a2 100644
--- a/hw/sysbus.c
+++ b/hw/sysbus.c
@@ -53,6 +53,8 @@ void sysbus_mmio_map(SysBusDevice *dev, int n, target_phys_addr_t addr)
         if (dev->mmio[n].memory) {
             memory_region_del_subregion(get_system_memory(),
                                         dev->mmio[n].memory);
+        } else if (dev->mmio[n].unmap) {
+            dev->mmio[n].unmap(dev, dev->mmio[n].addr);
         } else {
             cpu_register_physical_memory(dev->mmio[n].addr, dev->mmio[n].size,
                                          IO_MEM_UNASSIGNED);
@@ -105,16 +107,17 @@ void sysbus_init_mmio(SysBusDevice *dev, target_phys_addr_t size,
     dev->mmio[n].iofunc = iofunc;
 }
 
-void sysbus_init_mmio_cb(SysBusDevice *dev, target_phys_addr_t size,
-                         mmio_mapfunc cb)
+void sysbus_init_mmio_cb2(SysBusDevice *dev,
+                          mmio_mapfunc cb, mmio_mapfunc unmap)
 {
     int n;
 
     assert(dev->num_mmio < QDEV_MAX_MMIO);
     n = dev->num_mmio++;
     dev->mmio[n].addr = -1;
-    dev->mmio[n].size = size;
+    dev->mmio[n].size = 0;
     dev->mmio[n].cb = cb;
+    dev->mmio[n].unmap = unmap;
 }
 
 void sysbus_init_mmio_region(SysBusDevice *dev, MemoryRegion *memory)