Re: [PATCH 2/3] x86: x2apic/cluster: Make use of lowest prioritydelivery mode

From: Cyrill Gorcunov
Date: Mon May 21 2012 - 05:46:06 EST


On Mon, May 21, 2012 at 09:11:36AM +0200, Alexander Gordeev wrote:
>
> > p.s. Hope Suresh and Yinghai will take a look too. The thing which bothers
> > me is that we use LowPrio delivery mode, while there is no lowprio in
> > x2apic ipi messages and I assume the same should apply to ioapic generated
> > messages.
>
> My understanding of the specification is LowestPrio is not supported only for
> IPIs on x2APIC. Can not imagine why IO-APICs need to be limited here. But let's
> hear what the guys think.

True. This limitation applies to IPIs only.

Cyrill
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