rust: add SysBusDeviceImpl

The only function, right now, is to ensure that anything with a
SysBusDeviceClass class is a SysBusDevice.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/rust/hw/char/pl011/src/device.rs b/rust/hw/char/pl011/src/device.rs
index 59a689fdcd..bea9723aed 100644
--- a/rust/hw/char/pl011/src/device.rs
+++ b/rust/hw/char/pl011/src/device.rs
@@ -20,7 +20,7 @@ use qemu_api::{
     prelude::*,
     qdev::{Clock, ClockEvent, DeviceImpl, DeviceState, Property, ResetType, ResettablePhasesImpl},
     qom::{ClassInitImpl, ObjectImpl, Owned, ParentField},
-    sysbus::{SysBusDevice, SysBusDeviceClass},
+    sysbus::{SysBusDevice, SysBusDeviceClass, SysBusDeviceImpl},
     vmstate::VMStateDescription,
 };
 
@@ -176,6 +176,8 @@ impl ResettablePhasesImpl for PL011State {
     const HOLD: Option<fn(&Self, ResetType)> = Some(Self::reset_hold);
 }
 
+impl SysBusDeviceImpl for PL011State {}
+
 impl PL011Registers {
     pub(self) fn read(&mut self, offset: RegisterOffset) -> (bool, u32) {
         use RegisterOffset::*;
@@ -746,3 +748,4 @@ impl ObjectImpl for PL011Luminary {
 
 impl DeviceImpl for PL011Luminary {}
 impl ResettablePhasesImpl for PL011Luminary {}
+impl SysBusDeviceImpl for PL011Luminary {}