From: Philippe Mathieu-Daudé <f4bug@amsat.org>
Date: Mon, 24 Jun 2019 15:20:37 +0000 (+0200)
Subject: hw/misc/empty_slot: Lower address space priority
X-Git-Tag: v5.1.0-rc0~87^2~14
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6c339493c8dbb709c98f471144eebf74c4cca1ad;p=thirdparty%2Fqemu.git

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 3ba450e1cab..5ab426e965a 100644
--- 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);
     }
 }