On 07/29/19 14:57, Sergio Lopez wrote: > Implement the modern (v2) personality, according to the VirtIO 1.0 > specification. > > Support for v2 among guests is not as widespread as it'd be > desirable. While the Linux driver has had it for a while, support is > missing, at least, from Tianocore EDK II, NetBSD and FreeBSD.
That's right; not only are there no plans to implement virtio-mmio/1.0 for OVMF (to my knowledge), I'd even argue against such efforts. OVMF is a heavy-weight guest firmware, which I see entirely out of scope for "micro VMs". And so virtio-mmio/1.0 would seem like a needless & unwelcome complication, from the OVMF maintainership perspective. (This should not be construed as an argument against "micro VMs" -- I always say, identify your use case, then pick the right components for it. I never try to convince people to use OVMF indiscriminately.) > For this reason, the v2 personality is disabled, keeping the legacy > behavior as default. Machine types willing to use v2, can enable it > using MachineClass's compat_props. This approach makes me happy (with the understanding that edk2 guest firmware is not going to target the new machine type(s) in question). Thanks! Laszlo
