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Re: [Xen-devel] Interrupt forwarding

To: xen-devel@xxxxxxxxxxxxxxxxxxxxx, Jon Smirl <jonsmirl@xxxxxxxxx>
Subject: Re: [Xen-devel] Interrupt forwarding
From: Mark Williamson <Mark.Williamson@xxxxxxxxxxxx>
Date: Sat, 12 Mar 2005 18:12:58 +0000
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> > If I were designing a new bus I would make interrupt acknowledge part
> > of PCI config space in order to allow a single piece of code to
> > acknowledge them. Since we can't change the bus the only safe way to
> > do this is to build a hardware specific driver for each device to
> > acknowledge the interrupt.

I believe this problem is eliminated under PCI express, since interrupts are 
message-based.

Cheers,
Mark


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