On Tue, 2 Jul 2019 at 13:14, Sergio Lopez <s...@redhat.com> wrote: > > Microvm is a machine type inspired by both NEMU and Firecracker, and > constructed after the machine model implemented by the latter. > > It's main purpose is providing users a KVM-only machine type with fast > boot times, minimal attack surface (measured as the number of IO ports > and MMIO regions exposed to the Guest) and small footprint (specially > when combined with the ongoing QEMU modularization effort). > > Normally, other than the device support provided by KVM itself, > microvm only supports virtio-mmio devices. Microvm also includes a > legacy mode, which adds an ISA bus with a 16550A serial port, useful > for being able to see the early boot kernel messages.
Could we use virtio-pci instead of virtio-mmio? virtio-mmio is a bit deprecated and tends not to support all the features that virtio-pci does. It was introduced mostly as a stopgap while we didn't have pci support in the aarch64 virt machine, and remains for legacy "we don't like to break existing working setups" rather than as a recommended config for new systems. thanks -- PMM
