From ae00a27feab0ca12d2a802cfae9ee65ba3d43602 Mon Sep 17 00:00:00 2001

From: "Michael S. Tsirkin" <mst@redhat.com>

Date: Wed, 11 Sep 2013 13:33:31 +0300

Subject: [PATCH] piix4: disable io on reset

io base register at 0x40 is cleared on reset,

but io is not disabled until some other event

happens to call pm_io_space_update.

Invoke pm_io_space_update directly to make this

consistent.

Cc: qemu-stable@nongnu.org

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

(cherry picked from commit c046e8c4a26c902ca1b4f5bdf668a2da6bc75f54)

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

---

 hw/acpi/piix4.c | 1 +

 1 file changed, 1 insertion(+)

diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c

index c885690..3aaf18c 100644

--- a/hw/acpi/piix4.c

+++ b/hw/acpi/piix4.c

@@ -380,6 +380,7 @@ static void piix4_reset(void *opaque)

         /* Mark SMM as already inited (until KVM supports SMM). */

         pci_conf[0x5B] = 0x02;

     }

+    pm_io_space_update(s);

     piix4_update_hotplug(s);

 }