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rust: irq: define ObjectType for IRQState

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This is a small preparation in order to use an Owned<IRQState> for the argument
to sysbus_connect_irq.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2025-02-03 11:04:07 +01:00
parent 590faa03ee
commit 61faf6ac7b
1 changed files with 12 additions and 3 deletions
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15
rust/qemu-api/src/irq.rs
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@ -5,11 +5,12 @@
//! Bindings for interrupt sources
use core::ptr;
use std::{marker::PhantomData, os::raw::c_int};
use std::{ffi::CStr, marker::PhantomData, os::raw::c_int};
use crate::{
bindings::{qemu_set_irq, IRQState},
bindings::{self, qemu_set_irq},
prelude::*,
qom::ObjectClass,
};
/// Interrupt sources are used by devices to pass changes to a value (typically
@ -21,7 +22,8 @@ use crate::{
/// method sends a `true` value to the sink. If the guest has to see a
/// different polarity, that change is performed by the board between the
/// device and the interrupt controller.
///
pub type IRQState = bindings::IRQState;
/// Interrupts are implemented as a pointer to the interrupt "sink", which has
/// type [`IRQState`]. A device exposes its source as a QOM link property using
/// a function such as [`SysBusDeviceMethods::init_irq`], and
@ -91,3 +93,10 @@ impl Default for InterruptSource {
}
}
}
unsafe impl ObjectType for IRQState {
type Class = ObjectClass;
const TYPE_NAME: &'static CStr =
unsafe { CStr::from_bytes_with_nul_unchecked(bindings::TYPE_IRQ) };
}
qom_isa!(IRQState: Object);