Re: [kvm-devel] [RFC] Deferred interrupt handling.

[Alan Cox <alan@lxorguk.ukuu.org.uk>]

> IMO the only reasonable solution is to disallow interrupt forwarding
> with shared irqs.  If someone later comes up with a bright idea, we can

Which means you are back to ISA bus devices. Even checking if an IRQ is
currently unshared isn't simple as with hotplug this may change.

> implement it.  Otherwise the problem will solve itself with hardware
> moving to msi.

Only if MSI ever works properly on the bridges and hardware 8(
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