Re: [PATCH V2 4/6] kvm tools: Add PPC64 XICS interrupt controller support

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On Tue, Dec 13, 2011 at 06:10:48PM +1100, Matt Evans wrote:
> This patch adds XICS emulation code (heavily borrowed from QEMU), and wires
> this into kvm_cpu__irq() to fire a CPU IRQ via KVM.  A device tree entry is
> also added.  IPIs work, xics_alloc_irqnum() is added to allocate an external
> IRQ (which will later be used by the PHB PCI code) and finally, kvm__irq_line()
> can be called to raise an IRQ on XICS.\

Hrm, looks like you took a somewhat old version of xics.c from qemu.
It dangerously uses the same variable names for global irq numbers and
numbers local to one ics unit.  It used to have at least one bug
caused by confusing the two, which I'm not sure if you've also copied.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson
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