There's a diference between Rust and C:
Though C macro (e.g., DEFINE_PROP_BIT or DEFINE_PROP_BIT64) always
requires default value, Rust side allows to omit this "default" field
in #property, and provides a default value ("0" - false) for this
field.
This minor difference does not break user habits and should be
acceptable. Therefore, the test cases also cover this scenario.
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/r/20250920160520.3699591-10-zhao1.liu@intel.com
Add BIT_INFO to QDevProp trait, so that bit related property info could
be bound to u32 & u64.
Then add "bit=*" field in #property attributes macro to allow device to
configure bit property.
In addtion, convert the #property field parsing from `if-else` pattern
to `match` pattern, to help readability. And note, the `bitnr` member of
`Property` struct is generated by manual TokenStream construction,
instead of conditional repetition (like #(bitnr: #bitnr,)?) since
`quote` doesn't support this.
In addtion, rename VALUE member of QDevProp trait to BASE_INFO.
And update the test cases about qdev property.
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/r/20250920160520.3699591-9-zhao1.liu@intel.com
error: `rename` shadows a previous, unrelated binding
--> qemu-macros/src/lib.rs:265:14
|
265 | |rename| -> Result<proc_macro2::TokenStream, Error> {
| ^^^^^^
|
note: previous binding is here
--> qemu-macros/src/lib.rs:245:30
|
245 | let DeviceProperty { rename, defval } = prop;
| ^^^^^^
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#shadow_unrelated
= note: requested on the command line with `-D clippy::shadow-unrelated`
Rename the lambda parameter to "prop_rename" to fix the above clippy
error.
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/r/20250920160520.3699591-4-zhao1.liu@intel.com
Since we are going to add more attribute parsing for high-level migration
state macros, use the attrs crate instead of a handwritten parser for
device properties as well.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The attrs crate is a simple combinator-based for Rust attributes. It
will be used instead of a handwritten parser.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
