Re: [PATCH 12/22] virtio_pci: allow duplicate capabilities.

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On Sun, Mar 24, 2013 at 04:23:57PM -0700, H. Peter Anvin wrote:
> On 03/24/2013 06:14 AM, Michael S. Tsirkin wrote:
> > 
> > Peter is also saying we need a way to
> > do configuration/ISR without memory accesses.
> > 
> 
> I'm not 100% sure what you mean with ISR here (mostly because virtio
> only has a limited fraction of my attention right now.)

It's a virtio register used to clear interrupts for when INTA# is used.

> For configuration, are we dealing with too much data to just put it in
> configuration space?
> 
> 	-hpa

All of it? Yes, too big: for virtio-blk it's about 64 bytes already.

-- 
MST

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