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

* target/i386: optimize string instructions
* target/i386: new Sierra Forest and Clearwater Forest models
* rust: type-safe vmstate implementation
* rust: use interior mutability for PL011
* rust: clean ups
* memtxattrs: remove usage of bitfields from MEMTXATTRS_UNSPECIFIED
* gitlab-ci: enable Rust backtraces

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# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
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# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (49 commits)
  gitlab-ci: include full Rust backtraces in test runs
  rust: qemu-api: add sub-subclass to the integration tests
  rust/zeroable: Implement Zeroable with const_zero macro
  rust: qdev: make reset take a shared reference
  rust: pl011: drop use of ControlFlow
  rust: pl011: pull device-specific code out of MemoryRegionOps callbacks
  rust: pl011: remove duplicate definitions
  rust: pl011: wrap registers with BqlRefCell
  rust: pl011: extract PL011Registers
  rust: pl011: pull interrupt updates out of read/write ops
  rust: pl011: extract CharBackend receive logic into a separate function
  rust: pl011: extract conversion to RegisterOffset
  rust: pl011: hide unnecessarily "pub" items from outside pl011::device
  rust: pl011: remove unnecessary "extern crate"
  rust: prefer NonNull::new to assertions
  rust: vmstate: make order of parameters consistent in vmstate_clock
  rust: vmstate: remove translation of C vmstate macros
  rust: pl011: switch vmstate to new-style macros
  rust: qemu_api: add vmstate_struct
  rust: vmstate: add public utility macros to implement VMState
  ...

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

1 files changed, 53 insertions, 3 deletions

diff --git a/rust/qemu-api/tests/tests.rs b/rust/qemu-api/tests/tests.rs
index 526c3f4f8e..5c3e75ed3d 100644
--- a/rust/qemu-api/tests/tests.rs
+++ b/rust/qemu-api/tests/tests.rs
@@ -14,8 +14,8 @@ use qemu_api::{
     cell::{self, BqlCell},
     declare_properties, define_property,
     prelude::*,
-    qdev::{DeviceImpl, DeviceState, Property},
-    qom::{ObjectImpl, ParentField},
+    qdev::{DeviceClass, DeviceImpl, DeviceState, Property},
+    qom::{ClassInitImpl, ObjectImpl, ParentField},
     vmstate::VMStateDescription,
     zeroable::Zeroable,
 };
@@ -37,6 +37,10 @@ pub struct DummyState {
 
 qom_isa!(DummyState: Object, DeviceState);
 
+pub struct DummyClass {
+    parent_class: <DeviceState as ObjectType>::Class,
+}
+
 declare_properties! {
     DUMMY_PROPERTIES,
         define_property!(
@@ -49,7 +53,7 @@ declare_properties! {
 }
 
 unsafe impl ObjectType for DummyState {
-    type Class = <DeviceState as ObjectType>::Class;
+    type Class = DummyClass;
     const TYPE_NAME: &'static CStr = c_str!("dummy");
 }
 
@@ -67,6 +71,51 @@ impl DeviceImpl for DummyState {
     }
 }
 
+// `impl<T> ClassInitImpl<DummyClass> for T` doesn't work since it violates
+// orphan rule.
+impl ClassInitImpl<DummyClass> for DummyState {
+    fn class_init(klass: &mut DummyClass) {
+        <Self as ClassInitImpl<DeviceClass>>::class_init(&mut klass.parent_class);
+    }
+}
+
+#[derive(qemu_api_macros::offsets)]
+#[repr(C)]
+#[derive(qemu_api_macros::Object)]
+pub struct DummyChildState {
+    parent: ParentField<DummyState>,
+}
+
+qom_isa!(DummyChildState: Object, DeviceState, DummyState);
+
+pub struct DummyChildClass {
+    parent_class: <DummyState as ObjectType>::Class,
+}
+
+unsafe impl ObjectType for DummyChildState {
+    type Class = DummyChildClass;
+    const TYPE_NAME: &'static CStr = c_str!("dummy_child");
+}
+
+impl ObjectImpl for DummyChildState {
+    type ParentType = DummyState;
+    const ABSTRACT: bool = false;
+}
+
+impl DeviceImpl for DummyChildState {}
+
+impl ClassInitImpl<DummyClass> for DummyChildState {
+    fn class_init(klass: &mut DummyClass) {
+        <Self as ClassInitImpl<DeviceClass>>::class_init(&mut klass.parent_class);
+    }
+}
+
+impl ClassInitImpl<DummyChildClass> for DummyChildState {
+    fn class_init(klass: &mut DummyChildClass) {
+        <Self as ClassInitImpl<DummyClass>>::class_init(&mut klass.parent_class);
+    }
+}
+
 fn init_qom() {
     static ONCE: BqlCell<bool> = BqlCell::new(false);
 
@@ -85,6 +134,7 @@ fn test_object_new() {
     init_qom();
     unsafe {
         object_unref(object_new(DummyState::TYPE_NAME.as_ptr()).cast());
+        object_unref(object_new(DummyChildState::TYPE_NAME.as_ptr()).cast());
     }
 }