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From: | Avi Kivity |
Subject: | Re: [Qemu-devel] [PATCH 2/2] Add code to override IRQ 0 to INTI 2 |
Date: | Mon, 27 Oct 2008 22:02:09 +0200 |
User-agent: | Thunderbird 2.0.0.16 (X11/20080723) |
Avi Kivity wrote:
(what's irq 2 connected to now?)
Oh, of course irq 2 is only available on the ioapic; on the pic it is used for cascading.
If we can't find a free interrupt, we can always connect it to interrupt 5; that will reduce the number of pci interrupts to two. But we can implement apic mode and use lines 16-23 (if we add another ioapic, 16-47).
-- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.
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