Not workimg with QEMU emulator version 2.11.0 at all..

[thpryrchn]

The device seems to be a newer version than the driver is written for, and even has checks against it....

Here is my ioreg for my virtio device..
https://www.pastiebin.com/5a4c5c1a1a889

I am running on Sierra on Arch Linux, which I guess has the latest QEMU....

[pmj]

Yup, looks like 2.11 now implements Virtio 1.0 standard, non-transitional devices. Previous versions have been using transitional devices, which have implemented both the 1.0 standard device interface, and the legacy interface which the original virtio-net-osx driver targets. I actually started working on a new, Virtio PCI 1.0 backend just before Christmas. It's not quite there yet, but I'm hoping I can keep working on it through January despite work commitments.

Until that work is done, you may be able to revert Qemu to the old behaviour. This documentation suggests that setting the following option in the qemu command line argument for the virtio network device might turn the legacy support back on:

disable-legacy=off

Note that the old driver also doesn't support MSI-X, so you'll need to set the vectors option to 0 as well if you have trouble.

I haven't tested the above workaround, sorry - let me know if it doesn't work and we'll try to find a better alternative.

[pmj]

P.S. Please keep this issue open until it's properly fixed and I release 1.0b1, even if the workaround solves it for now.

[thpryrchn]

Hmmm. I have not figured out how to do that with the libvirt XML that I have my Mac machine in... I may have to try converting it to a command line, and see if it will work.

[thpryrchn]

If you need any testing, Let me know :)

[pmj]

It will definitely need a substantial amount of testing, but the standard-compliant virtio PCI backend driver is not quite functional yet, I'm afraid, so not ready for anything practical just yet. I'll definitely let you know when that changes.

[steeve]

hey @pmj, any news about 1.0b1 ?
On a side note, this is truly amazing work