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Re: [Qemu-devel] [PATCH 2/2] Route IOAPIC interrupts via ISA bus

From: Avi Kivity
Subject: Re: [Qemu-devel] [PATCH 2/2] Route IOAPIC interrupts via ISA bus
Date: Wed, 26 Aug 2009 19:06:02 +0300
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On 08/26/2009 07:03 PM, Gerd Hoffmann wrote:
On 08/09/09 18:44, Avi Kivity wrote:
Instead of calling the IOAPIC from the PIC, raise IOAPIC irqs via the ISA bus.
As a side effect, IOAPIC lines 16-23 are enabled.

Now we probably need some acpi magic to tell the guest OS that there are a few more IRQ lines?

I wanted to route the PCI IRQs to those lines (and have eight links instead of four). Now I don't think it's worthwhile, as every guest that is interesting from a performance point of view has MSI support.

So I think we should just leave these lines as is, terminated with a 4.7K resistor to avoid picking up noise.

error compiling committee.c: too many arguments to function

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