On Mon, Dec 07, 2009 at 02:16:33PM +0100, Gerd Hoffmann wrote: > 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.
OK. Anthony, could you drop this from staging for now please? Gerd, any idea whether "one MSI-X vector" feature is worth pursuing? -- MST