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Date: Mon, 07 Dec 2009 14:16:33 +0100
From: Gerd Hoffmann <kraxel@redhat.com>
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Subject: [Qemu-devel] Re: [PATCH 2/2] virtio: enable msi-x for
	console+balloon
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To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: qemu-devel@nongnu.org

On 12/07/09 14:03, Michael S. Tsirkin wrote:
> Also - why not simply use virtio? I assume you are talking about
> guests with virtio support otherwise MSI support in virtio
> won't matter for them.

Point.  Guests with virtio-console+balloon most likely can use virtio 
for storage+net too, so nothing performance-critical is left in ioapic 
irq space and IRQ sharing for the leftovers (just usb I think) shouldn't 
be a big issue.

>> Yes.  Three for balloon, but that can easily changed to two.
>
> Yes, please, make this change for 0.12.

We can also simply drop this ...

> No, but changing this will need updating guests.

... or postphone until we have the "one MSI-X vector" support working.

cheers,
   Gerd