Peter Maydell writes: > On Thu, 25 Jul 2019 at 10:59, Michael S. Tsirkin wrote: >> OK so please start with adding virtio 1 support. Guest bits >> have been ready for years now. > > I'd still rather we just used pci virtio. If pci isn't > fast enough at startup, do something to make it faster... Actually, removing PCI (and ACPI), is one of the main ways microvm has to reduce not only boot time, but also the exposed surface and the general footprint. I think we need to discuss and settle whether using virtio-mmio (even if maintained and upgraded to virtio 1) for a new machine type is acceptable or not. Because if it isn't, we should probably just ditch the whole microvm idea and move to something else. Sergio.