acpi: implement ospm_status() method for PIIX4/ICH9_LPC devices

... using TYPE_ACPI_DEVICE_IF interface.
Which provides status reporting of ACPI declared memory devices

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index 0ecc241458..e7d6c77b34 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -309,3 +309,10 @@ void ich9_pm_device_plug_cb(ICH9LPCPMRegs *pm, DeviceState *dev, Error **errp)
                    " type: %s", object_get_typename(OBJECT(dev)));
     }
 }
+
+void ich9_pm_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list)
+{
+    ICH9LPCState *s = ICH9_LPC_DEVICE(adev);
+
+    acpi_memory_ospm_status(&s->pm.acpi_memory_hotplug, list);
+}