ostd::arch::kernel::apic

Enum DeliveryMode

Source 
#[repr(u64)]
pub enum DeliveryMode {
    Fixed = 0,
    LowestPriority = 1,
    Smi = 2,
    _Reserved = 3,
    Nmi = 4,
    Init = 5,
    StartUp = 6,
}

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Fixed = 0

Delivers the interrupt specified in the vector field to the target processor or processors.

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LowestPriority = 1

Same as fixed mode, except that the interrupt is delivered to the processor executing at the lowest priority among the set of processors specified in the destination field. The ability for a processor to send a lowest priority IPI is model specific and should be avoided by BIOS and operating system software.

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Smi = 2

Non-Maskable Interrupt

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_Reserved = 3

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Nmi = 4

System Management Interrupt

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Init = 5

Delivers an INIT request to the target processor or processors, which causes them to perform an initialization.

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StartUp = 6

Start-up Interrupt

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