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pc: Generalize ISA IRQs to GSIs
The ISA bus IRQ range is 0..15. What isa_irq_handler and IsaIrqState areactually dealing with are the Global System Interrupts. Refactor thecode to clarify this.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
ioapic: Implement EOI handling for level-triggered IRQs
Add the missing EOI broadcast from local APIC to the IOAPICs oncompletion of level-triggered IRQs. This ensures that a still assertedIRQ source properly re-triggers an APIC IRQ.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>...