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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 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.1) Gecko/20090814 Fedora/3.0-2.6.b3.fc11 Lightning/1.0pre Thunderbird/3.0b3 |
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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