On Fri, 15 Jul 2005, Venkatesh Pallipadi wrote:
> I wouldn't say it is totally impossible. There are ways in which Linux can work
> without a reliable Local APIC timer. One option being - make one CPU that gets
> the external timer interrupt multicast an IPI to all the other CPUs that
> wants to get periodic timer interrupt.
That's like scratching your left ear with your right hand -- broadcasting
that external timer interrupt in the first place is more straightforward.
If you want to exclude CPUs from the list of receivers, just use the
logical destination mode appropriately.
Maciej
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