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rust/qdev: Support property info for more common types

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Add a helper macro to implement QDevProp trait for u8/u16/u32/usize/i32
/i64.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/r/20250920160520.3699591-8-zhao1.liu@intel.com
This commit is contained in:
Zhao Liu 2025-09-21 00:05:15 +08:00 • committed by Paolo Bonzini
parent bed2a37b20
commit b4221e88a9
1 changed files with 16 additions and 12 deletions
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28
rust/hw/core/src/qdev.rs
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@ -134,20 +134,24 @@ pub unsafe trait QDevProp {
const VALUE: *const bindings::PropertyInfo;
}
/// Use [`bindings::qdev_prop_bool`] for `bool`.
unsafe impl QDevProp for bool {
const VALUE: *const bindings::PropertyInfo = addr_of!(bindings::qdev_prop_bool);
macro_rules! impl_qdev_prop {
($type:ty,$info:ident) => {
unsafe impl $crate::qdev::QDevProp for $type {
const VALUE: *const $crate::bindings::PropertyInfo =
addr_of!($crate::bindings::$info);
}
};
}
/// Use [`bindings::qdev_prop_uint64`] for `u64`.
unsafe impl QDevProp for u64 {
const VALUE: *const bindings::PropertyInfo = addr_of!(bindings::qdev_prop_uint64);
}
/// Use [`bindings::qdev_prop_chr`] for [`chardev::CharBackend`].
unsafe impl QDevProp for chardev::CharBackend {
const VALUE: *const bindings::PropertyInfo = addr_of!(bindings::qdev_prop_chr);
}
impl_qdev_prop!(bool, qdev_prop_bool);
impl_qdev_prop!(u8, qdev_prop_uint8);
impl_qdev_prop!(u16, qdev_prop_uint16);
impl_qdev_prop!(u32, qdev_prop_uint32);
impl_qdev_prop!(u64, qdev_prop_uint64);
impl_qdev_prop!(usize, qdev_prop_usize);
impl_qdev_prop!(i32, qdev_prop_int32);
impl_qdev_prop!(i64, qdev_prop_int64);
impl_qdev_prop!(chardev::CharBackend, qdev_prop_chr);
/// Trait to define device properties.
///