Jan Kiszka wrote:
> [ Refreshed and resent version of
>  http://permalink.gmane.org/gmane.comp.emulators.qemu/23456 ]
> 
> This patch reworks the delivery of IRQs directed to a local APIC,
> handling all requests in a central function, apic_local_deliver(),
> analogue to apic_bus_deliver().
> 
> Futhermore, the APIC_LVT_LINT0 mask initialization is fixed for SMP.
> Finally, virtual routing of the legacy PIT to the APICs is adopted in so
> far that pic_irq_request() delivers interrupts through the LINT0 lines
> of all APICs in the system. This routing allows for emulating the
> IO-APIC NMI watchdog mechanism, including on SMP, which Linux exploits
> via its nmi_watchdog=1.
> 
> Signed-off-by: Jan Kiszka <jan.kiszka@web.de>
> 

Non-broken patch attached. Sorry.

Jan