hw/misc/empty_slot: Lower address space priority

Empty slots model RAZ/WI access on a bus. Since we can still
(hot) plug devices on the bus, lower the slot priority, so
device added later is accessed first.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Artyom Tarasenko <atar4qemu@gmail.com>
Message-Id: <20200510152840.13558-3-f4bug@amsat.org>

diff --git a/hw/core/empty_slot.c b/hw/core/empty_slot.c
index 3ba450e1caba88fe703df77cf27aa32d77df92cb..5ab426e965ae0f962214e9893fdefb914079b0a3 100644 (file)
--- a/hw/core/empty_slot.c
+++ b/hw/core/empty_slot.c
@@ -67,7 +67,7 @@ void empty_slot_init(hwaddr addr, uint64_t slot_size)
 
         qdev_init_nofail(dev);
 
-        sysbus_mmio_map(s, 0, addr);
+        sysbus_mmio_map_overlap(s, 0, addr, -10000);
     }
 }