[PATCH 07/30] q800: introduce mac-io container memory region

[Mark Cave-Ayland]

Move all devices from the IO region to within the container in preparation
for updating the IO aliasing mechanism.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
---
 hw/m68k/q800.c         | 6 ++++++
 include/hw/m68k/q800.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/hw/m68k/q800.c b/hw/m68k/q800.c
index c22a98d616..6399631ed0 100644
--- a/hw/m68k/q800.c
+++ b/hw/m68k/q800.c
@@ -410,6 +410,12 @@ static void q800_machine_init(MachineState *machine)
     /* RAM */
     memory_region_add_subregion(get_system_memory(), 0, machine->ram);
 
+    /*
+     * Create container for all IO devices
+     */
+    memory_region_init(&m->macio, NULL, "mac-io", IO_SLICE);
+    memory_region_add_subregion(get_system_memory(), IO_BASE, &m->macio);
+
     /*
      * Memory from IO_BASE to IO_BASE + IO_SLICE is repeated
      * from IO_BASE + IO_SLICE to IO_BASE + IO_SIZE
diff --git a/include/hw/m68k/q800.h b/include/hw/m68k/q800.h
index de02af53be..156872a124 100644
--- a/include/hw/m68k/q800.h
+++ b/include/hw/m68k/q800.h
@@ -33,6 +33,7 @@ struct Q800MachineState {
     M68kCPU *cpu;
     MemoryRegion rom;
     DeviceState *glue;
+    MemoryRegion macio;
 };
 
 #define TYPE_Q800_MACHINE MACHINE_TYPE_NAME("q800")
-- 
2.30.2