From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: qemu-rust@nongnu.org, armbru@redhat.com, marcandre.lureau@redhat.com
Subject: [PATCH preview 00/14] rust: QObject and QAPI bindings
Date: Wed, 1 Oct 2025 10:00:37 +0200 [thread overview]
Message-ID: <20251001080051.1043944-1-pbonzini@redhat.com> (raw)
In-Reply-To: <20251001075005.1041833-1-pbonzini@redhat.com>
This adds two related parts of the Rust bindings:
- QAPI code generator that creates Rust structs from the JSON
description. The structs are *not* ABI compatible with the
C ones, instead they use native Rust data types.
- QObject bindings and (de)serialization support, which can be used to
convert QObjects to and from QAPI structs.
Unfortunately Rust code is not able to use visitors, other than by
creating an intermediate QObject. This is because of the different
architecture of serde vs. QAPI visitors, and because visitor's
dual-purpose functions, where the same function is used by both input and
output visitors, rely heavily on the structs using the same representation
as the visitor arguments (for example NUL-terminated strings.
The serde format implementation was co-authored by me and Marc-André.
Marc-André did all the bug fixing and integration testing; and there
are a lot more bugs to be fixed / tests to be written, so this is just
a preview.
Paolo
Marc-André Lureau (7):
rust/qobject: add Display/Debug
scripts/qapi: add QAPISchemaIfCond.rsgen()
scripts/qapi: generate high-level Rust bindings
scripts/qapi: strip trailing whitespaces
scripts/rustc_args: add --no-strict-cfg
rust/util: build QAPI types
rust: start qapi tests
Paolo Bonzini (7):
qobject: make refcount atomic
rust: add basic QObject bindings
subprojects: add serde
rust: add Serialize implementation for QObject
rust: add Serializer (to_qobject) implementation for QObject
rust: add Deserialize implementation for QObject
rust: add Deserializer (from_qobject) implementation for QObject
docs/devel/rust.rst | 1 +
meson.build | 4 +-
include/qobject/qobject.h | 5 +-
rust/util/wrapper.h | 8 +
qapi/meson.build | 6 +
rust/Cargo.lock | 2 +
rust/Cargo.toml | 2 +
rust/meson.build | 2 +
rust/tests/meson.build | 10 +-
rust/tests/tests/integration.rs | 2 +
rust/tests/tests/qapi.rs | 35 ++
rust/util/Cargo.toml | 2 +
rust/util/meson.build | 31 +-
rust/util/src/lib.rs | 2 +
rust/util/src/qobject/deserialize.rs | 134 ++++
rust/util/src/qobject/deserializer.rs | 373 +++++++++++
rust/util/src/qobject/error.rs | 58 ++
rust/util/src/qobject/mod.rs | 353 +++++++++++
rust/util/src/qobject/serialize.rs | 59 ++
rust/util/src/qobject/serializer.rs | 585 ++++++++++++++++++
scripts/archive-source.sh | 3 +
scripts/make-release | 2 +-
scripts/qapi/backend.py | 28 +-
scripts/qapi/common.py | 16 +
scripts/qapi/gen.py | 6 +-
scripts/qapi/main.py | 4 +-
scripts/qapi/rs.py | 176 ++++++
scripts/qapi/rs_types.py | 354 +++++++++++
scripts/qapi/schema.py | 4 +
scripts/rust/rustc_args.py | 16 +-
subprojects/.gitignore | 3 +
.../packagefiles/serde-1-rs/meson.build | 36 ++
.../packagefiles/serde-1.0.226-include.patch | 16 +
.../packagefiles/serde_core-1-rs/meson.build | 25 +
.../serde_core-1.0.226-include.patch | 15 +
.../serde_derive-1-rs/meson.build | 35 ++
.../serde_derive-1.0.226-include.patch | 11 +
subprojects/serde-1-rs.wrap | 11 +
subprojects/serde_core-1-rs.wrap | 11 +
subprojects/serde_derive-1-rs.wrap | 11 +
40 files changed, 2438 insertions(+), 19 deletions(-)
create mode 100644 rust/tests/tests/integration.rs
create mode 100644 rust/tests/tests/qapi.rs
create mode 100644 rust/util/src/qobject/deserialize.rs
create mode 100644 rust/util/src/qobject/deserializer.rs
create mode 100644 rust/util/src/qobject/error.rs
create mode 100644 rust/util/src/qobject/mod.rs
create mode 100644 rust/util/src/qobject/serialize.rs
create mode 100644 rust/util/src/qobject/serializer.rs
create mode 100644 scripts/qapi/rs.py
create mode 100644 scripts/qapi/rs_types.py
create mode 100644 subprojects/packagefiles/serde-1-rs/meson.build
create mode 100644 subprojects/packagefiles/serde-1.0.226-include.patch
create mode 100644 subprojects/packagefiles/serde_core-1-rs/meson.build
create mode 100644 subprojects/packagefiles/serde_core-1.0.226-include.patch
create mode 100644 subprojects/packagefiles/serde_derive-1-rs/meson.build
create mode 100644 subprojects/packagefiles/serde_derive-1.0.226-include.patch
create mode 100644 subprojects/serde-1-rs.wrap
create mode 100644 subprojects/serde_core-1-rs.wrap
create mode 100644 subprojects/serde_derive-1-rs.wrap
--
2.51.0
next prev parent reply other threads:[~2025-10-01 8:03 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-01 7:49 [PATCH 00/11] rust: migration: add high-level migration wrappers Paolo Bonzini
2025-10-01 7:52 ` [PATCH 01/11] rust: bql: add BqlRefCell::get_mut() Paolo Bonzini
2025-10-13 8:49 ` Zhao Liu
2025-10-01 7:52 ` [PATCH 02/11] rust: migration: do not pass raw pointer to VMStateDescription::fields Paolo Bonzini
2025-10-13 8:20 ` Zhao Liu
2025-10-01 7:52 ` [PATCH 03/11] rust: migration: do not store raw pointers into VMStateSubsectionsWrapper Paolo Bonzini
2025-10-13 8:46 ` Zhao Liu
2025-10-01 7:52 ` [PATCH 04/11] rust: migration: validate termination of subsection arrays Paolo Bonzini
2025-10-13 8:46 ` Zhao Liu
2025-10-01 7:52 ` [PATCH 05/11] rust: migration: extract vmstate_fields_ref Paolo Bonzini
2025-10-13 8:55 ` Zhao Liu
2025-10-01 7:52 ` [PATCH 06/11] rust: move VMState from bql to migration Paolo Bonzini
2025-10-13 8:57 ` Zhao Liu
2025-10-01 7:52 ` [PATCH 07/11] rust: migration: add high-level migration wrappers Paolo Bonzini
2025-10-01 7:52 ` [PATCH 08/11] rust: qemu-macros: add ToMigrationState derive macro Paolo Bonzini
2025-10-01 7:52 ` [PATCH 09/11] timer: constify some functions Paolo Bonzini
2025-10-01 7:52 ` [PATCH 10/11] rust: migration: implement ToMigrationState for Timer Paolo Bonzini
2025-10-01 7:52 ` [PATCH 11/11] rust: migration: implement ToMigrationState as part of impl_vmstate_bitsized Paolo Bonzini
2025-10-01 8:00 ` Paolo Bonzini [this message]
2025-10-01 8:00 ` [PATCH 01/14] qobject: make refcount atomic Paolo Bonzini
2025-10-13 7:51 ` Zhao Liu
2025-10-01 8:00 ` [PATCH 02/14] rust: add basic QObject bindings Paolo Bonzini
2025-10-01 8:00 ` [PATCH 03/14] subprojects: add serde Paolo Bonzini
2025-10-01 8:00 ` [PATCH 04/14] rust: add Serialize implementation for QObject Paolo Bonzini
2025-10-01 8:00 ` [PATCH 05/14] rust: add Serializer (to_qobject) " Paolo Bonzini
2025-10-01 8:00 ` [PATCH 06/14] rust: add Deserialize " Paolo Bonzini
2025-10-01 8:00 ` [PATCH 07/14] rust: add Deserializer (from_qobject) " Paolo Bonzini
2025-10-01 8:00 ` [PATCH 08/14] rust/qobject: add Display/Debug Paolo Bonzini
2025-10-01 8:00 ` [PATCH 09/14] scripts/qapi: add QAPISchemaIfCond.rsgen() Paolo Bonzini
2025-10-01 8:00 ` [PATCH 10/14] scripts/qapi: generate high-level Rust bindings Paolo Bonzini
2025-10-01 8:00 ` [PATCH 11/14] scripts/qapi: strip trailing whitespaces Paolo Bonzini
2025-10-01 8:00 ` [PATCH 12/14] scripts/rustc_args: add --no-strict-cfg Paolo Bonzini
2025-10-01 8:00 ` [PATCH 13/14] rust/util: build QAPI types Paolo Bonzini
2025-10-01 8:00 ` [PATCH 14/14] rust: start qapi tests Paolo Bonzini
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