[Qemu-devel] [RFC v1 15/22] memory: move address_space_memory and address_space_io out of memory core

[Avi Kivity <avi@redhat.com>]

With this change, memory.c no longer knows anything about special address
spaces, so it is prepared for AddressSpace based DMA.

Signed-off-by: Avi Kivity <avi@redhat.com>
---
 exec-memory.h |  6 ------
 exec.c        |  9 +++++++--
 memory.c      | 16 ----------------
 3 files changed, 7 insertions(+), 24 deletions(-)

diff --git a/exec-memory.h b/exec-memory.h
index 1cd92ee..6707e40 100644
--- a/exec-memory.h
+++ b/exec-memory.h
@@ -33,12 +33,6 @@ MemoryRegion *get_system_memory(void);
  */
 MemoryRegion *get_system_io(void);
 
-/* Set the root memory region.  This region is the system memory map. */
-void set_system_memory_map(MemoryRegion *mr);
-
-/* Set the I/O memory region.  This region is the I/O memory map. */
-void set_system_io_map(MemoryRegion *mr);
-
 #endif
 
 #endif
diff --git a/exec.c b/exec.c
index 51a32e7..e5f26fb 100644
--- a/exec.c
+++ b/exec.c
@@ -116,6 +116,9 @@
 static MemoryRegion *system_memory;
 static MemoryRegion *system_io;
 
+static AddressSpace address_space_io;
+static AddressSpace address_space_memory;
+
 MemoryRegion io_mem_ram, io_mem_rom, io_mem_unassigned, io_mem_notdirty;
 static MemoryRegion io_mem_subpage_ram;
 
@@ -3245,11 +3248,13 @@ static void memory_map_init(void)
 {
     system_memory = g_malloc(sizeof(*system_memory));
     memory_region_init(system_memory, "system", INT64_MAX);
-    set_system_memory_map(system_memory);
+    address_space_init(&address_space_memory, system_memory);
+    address_space_memory.name = "memory";
 
     system_io = g_malloc(sizeof(*system_io));
     memory_region_init(system_io, "io", 65536);
-    set_system_io_map(system_io);
+    address_space_init(&address_space_io, system_io);
+    address_space_io.name = "I/O";
 
     memory_listener_register(&core_memory_listener, system_memory);
     memory_listener_register(&io_memory_listener, system_io);
diff --git a/memory.c b/memory.c
index eb75349..7bc5a32 100644
--- a/memory.c
+++ b/memory.c
@@ -358,8 +358,6 @@ static void access_with_adjusted_size(target_phys_addr_t addr,
     }
 }
 
-static AddressSpace address_space_memory;
-
 static const MemoryRegionPortio *find_portio(MemoryRegion *mr, uint64_t offset,
                                              unsigned width, bool write)
 {
@@ -448,8 +446,6 @@ static void memory_region_iorange_destructor(IORange *iorange)
     .destructor = memory_region_iorange_destructor,
 };
 
-static AddressSpace address_space_io;
-
 static AddressSpace *memory_region_to_address_space(MemoryRegion *mr)
 {
     AddressSpace *as;
@@ -1556,18 +1552,6 @@ void address_space_init(AddressSpace *as, MemoryRegion *root)
     memory_region_transaction_commit();
 }
 
-void set_system_memory_map(MemoryRegion *mr)
-{
-    address_space_init(&address_space_memory, mr);
-    address_space_memory.name = "memory";
-}
-
-void set_system_io_map(MemoryRegion *mr)
-{
-    address_space_init(&address_space_io, mr);
-    address_space_io.name = "I/O";
-}
-
 uint64_t io_mem_read(MemoryRegion *mr, target_phys_addr_t addr, unsigned size)
 {
     return memory_region_dispatch_read(mr, addr, size);
-- 
1.7.12