Re: number of interrupt sources limit

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Tue, May 31, 2016 at 10:05:46PM +0200, Joerg Sonnenberger wrote:
> On Tue, May 31, 2016 at 09:09:13PM +0200, Manuel Bouyer wrote:
> > actually, the number of interrupt sources per CPU (but all peripheral
> > interrupts are routed to the BSP) is limited to 32. Is this considered
> > enough for modern x86 ?
> 
> Well, the primary limit is that interrupts must have an entry in the IDT
> and that is naturally limited to 256 entries, including exceptions and
> the like.

yes, but this is still 8x our limit.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--