diff --git a/rust/qemu-api/src/irq.rs b/rust/qemu-api/src/irq.rs
index 835b027d5e..672eec1430 100644
--- a/rust/qemu-api/src/irq.rs
+++ b/rust/qemu-api/src/irq.rs
@@ -83,6 +83,12 @@ where
     pub(crate) const fn as_ptr(&self) -> *mut *mut IRQState {
         self.cell.as_ptr()
     }
+
+    #[allow(dead_code)]
+    pub(crate) const fn slice_as_ptr(slice: &[Self]) -> *mut *mut IRQState {
+        assert!(!slice.is_empty());
+        slice[0].as_ptr()
+    }
 }
 
 impl Default for InterruptSource {