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[Qemu-devel] Re: [RFC PATCH 4/5] APIC/IOAPIC EOI callback

From: Avi Kivity
Subject: [Qemu-devel] Re: [RFC PATCH 4/5] APIC/IOAPIC EOI callback
Date: Sun, 11 Jul 2010 21:14:11 +0300
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.10) Gecko/20100621 Fedora/3.0.5-1.fc13 Thunderbird/3.0.5 
On 07/11/2010 09:09 PM, Alex Williamson wrote:

For device assignment, we need to know when the VM writes an end
of interrupt to the APIC, which allows us to de-assert the interrupt
line and clear the DisINTx bit.  Add a new wrapper for ioapic
generated interrupts with a callback on eoi and create an interface
for drivers to be notified on eoi.
You aren't going to get this with kvm's in-kernel irqchip, so we need a new interface there. 

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