Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* rust: better integration with clippy, rustfmt and rustdoc
* rust: interior mutability types
* rust: add a bit operations module
* rust: first part of QOM rework
* kvm: remove unnecessary #ifdef
* clock: small cleanups, improve handling of Clock lifetimes

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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (49 commits)
  rust: qom: change the parent type to an associated type
  rust: qom: split ObjectType from ObjectImpl trait
  rust: qom: move bridge for TypeInfo functions out of pl011
  rust: qdev: move bridge for realize and reset functions out of pl011
  rust: qdev: move device_class_init! body to generic function, ClassInitImpl implementation to macro
  rust: qom: move ClassInitImpl to the instance side
  rust: qom: convert type_info! macro to an associated const
  rust: qom: rename Class trait to ClassInitImpl
  rust: qom: add default definitions for ObjectImpl
  rust: add a bit operation module
  rust: add bindings for interrupt sources
  rust: define prelude
  rust: cell: add BQL-enforcing RefCell variant
  rust: cell: add BQL-enforcing Cell variant
  bql: check that the BQL is not dropped within marked sections
  qom/object: Remove type_register()
  script/codeconverter/qom_type_info: Deprecate MakeTypeRegisterStatic and MakeTypeRegisterNotStatic
  ui: Replace type_register() with type_register_static()
  target/xtensa: Replace type_register() with type_register_static()
  target/sparc: Replace type_register() with type_register_static()
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/rust/qemu-api/src/sysbus.rs b/rust/qemu-api/src/sysbus.rs
new file mode 100644
index 0000000000..5ee068541c
--- /dev/null
+++ b/rust/qemu-api/src/sysbus.rs
@@ -0,0 +1,33 @@
+// Copyright 2024 Red Hat, Inc.
+// Author(s): Paolo Bonzini <pbonzini@redhat.com>
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+use std::{ffi::CStr, ptr::addr_of};
+
+pub use bindings::{SysBusDevice, SysBusDeviceClass};
+
+use crate::{bindings, cell::bql_locked, irq::InterruptSource, prelude::*};
+
+unsafe impl ObjectType for SysBusDevice {
+    type Class = SysBusDeviceClass;
+    const TYPE_NAME: &'static CStr =
+        unsafe { CStr::from_bytes_with_nul_unchecked(bindings::TYPE_SYS_BUS_DEVICE) };
+}
+
+impl SysBusDevice {
+    /// Return `self` cast to a mutable pointer, for use in calls to C code.
+    const fn as_mut_ptr(&self) -> *mut SysBusDevice {
+        addr_of!(*self) as *mut _
+    }
+
+    /// Expose an interrupt source outside the device as a qdev GPIO output.
+    /// Note that the ordering of calls to `init_irq` is important, since
+    /// whoever creates the sysbus device will refer to the interrupts with
+    /// a number that corresponds to the order of calls to `init_irq`.
+    pub fn init_irq(&self, irq: &InterruptSource) {
+        assert!(bql_locked());
+        unsafe {
+            bindings::sysbus_init_irq(self.as_mut_ptr(), irq.as_ptr());
+        }
+    }
+}