Marcelo Tosatti wrote: >> Maybe require explicit device/function assignment on the command line? >> It will be managed anyway. >> > > ACPI does support hotplugging of individual functions inside slots, > not sure how well does Linux (and other OSes) support that.. should be > transparent though. >
I think we need to decide what we want to target in terms of upper limits. With a bridge or two, we can probably easily do 128. If we really want to push things, I think we should do a PCI based virtio controller. I doubt a large number of PCI devices is ever going to perform very well b/c of interrupt sharing and some of the assumptions in virtio_pci. If we implement a controller, we can use a single interrupt, but multiplex multiple notifications on that single interrupt. We can also be more aggressive about using shared memory instead of PCI config space which would reduce the overall number of exits. We could easily support a very large number of devices this way. But again, what do we want to target for now? Regards, Anthony Liguori ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
