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Re: [Qemu-devel] [PATCH 1/2] Route PC irqs to ISA bus instead of i8259 d
Re: [Qemu-devel] [PATCH 1/2] Route PC irqs to ISA bus instead of i8259 directly
Mon, 10 Aug 2009 11:04:55 +0200
Am 09.08.2009 um 18:44 schrieb Avi Kivity <address@hidden>:
A PC has its motherboard IRQ lines connected to both the PIC and
Currently, qemu routes IRQs to the PIC which then calls the IOAPIC, an
incestuous arrangement. In order to clean this up, create a new ISA
abstraction, and have devices raise ISA IRQs (which in turn raise
IRQs as usual).
Is this really true? From my understanding the PIC in modern systems
is emulated through the IOAPIC, which is the reason we have legacy
Copying the boot interrupt experts...
[Qemu-devel] [PATCH 1/2] Route PC irqs to ISA bus instead of i8259 directly, Avi Kivity, 2009/08/09