On 12/07/09 15:13, Michael S. Tsirkin wrote:
Gerd, any idea whether "one MSI-X vector" feature is worth pursuing?
I'd rate it low priority. First because virtio-enabled guests can use virtio-net+blk. Also because with the upcoming p35 support we'll get a more modern pc emulation including a ioapic with all 24 IRQ lines being wired up, which will help reducing IRQ sharing too.
MSI support (no -X) could be more intresting (for emulated devices) as it is older and thus support is more common. My T60 for example has no device with MSI-X support but 9 with MSI support. Linux turns on MSI for 7 of them (4 PCIe ports, e1000, ahci, iwl3945).
cheers, Gerd
