memory: manage coalesced mmio via a MemoryListener

[qemu.git] / memory.h

diff --git a/memory.h b/memory.h
index 37ce1517ca26aa6c10acff424da8b9e85be99fb7..64d2b341b6dae88c980af528124c6a7fc7b63055 100644 (file)
--- a/memory.h
+++ b/memory.h
@@ -157,6 +157,21 @@ struct MemoryRegionPortio {
 
 #define PORTIO_END_OF_LIST() { }
 
+typedef struct AddressSpace AddressSpace;
+
+/**
+ * AddressSpace: describes a mapping of addresses to #MemoryRegion objects
+ */
+struct AddressSpace {
+    /* All fields are private. */
+    const char *name;
+    MemoryRegion *root;
+    struct FlatView *current_map;
+    int ioeventfd_nb;
+    struct MemoryRegionIoeventfd *ioeventfds;
+    QTAILQ_ENTRY(AddressSpace) address_spaces_link;
+};
+
 typedef struct MemoryRegionSection MemoryRegionSection;
 
 /**
@@ -202,6 +217,10 @@ struct MemoryListener {
                         bool match_data, uint64_t data, EventNotifier *e);
     void (*eventfd_del)(MemoryListener *listener, MemoryRegionSection *section,
                         bool match_data, uint64_t data, EventNotifier *e);
+    void (*coalesced_mmio_add)(MemoryListener *listener, MemoryRegionSection *section,
+                               target_phys_addr_t addr, target_phys_addr_t len);
+    void (*coalesced_mmio_del)(MemoryListener *listener, MemoryRegionSection *section,
+                               target_phys_addr_t addr, target_phys_addr_t len);
     /* Lower = earlier (during add), later (during del) */
     unsigned priority;
     MemoryRegion *address_space_filter;
@@ -776,6 +795,14 @@ void memory_global_dirty_log_stop(void);
 
 void mtree_info(fprintf_function mon_printf, void *f);
 
+/**
+ * address_space_init: initializes an address space
+ *
+ * @as: an uninitialized #AddressSpace
+ * @root: a #MemoryRegion that routes addesses for the address space
+ */
+void address_space_init(AddressSpace *as, MemoryRegion *root);
+
 #endif
 
 #endif