From: Bernhard Beschow <shentey@gmail.com>

PIIX3 clears its reset control register, so do the same in PIIX4.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20221022150508.26830-28-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/isa/piix4.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/isa/piix4.c b/hw/isa/piix4.c
index e05e65d3bc..9126eb9edf 100644
--- a/hw/isa/piix4.c
+++ b/hw/isa/piix4.c
@@ -140,6 +140,8 @@ static void piix4_isa_reset(DeviceState *dev)
     pci_conf[0xab] = 0x00;
     pci_conf[0xac] = 0x00;
     pci_conf[0xae] = 0x00;
+
+    d->rcr = 0;
 }
 
 static int piix4_post_load(void *opaque, int version_id)
-- 
2.37.3