[vfio-users] Saving/restoring VFIO VMs

[Quentin Deldycke]

You can't do like this. Even sleep is not correctly supported.

What is happening to the card during reboot? How windows can know?

--
Deldycke Quentin


On 18 April 2017 at 13:27, Patrick O'Callaghan <poc at usb.ve> wrote:

> Am I correct in assuming that KVM/QEMU VMs cannot be frozen and
> restored (e.g. in order to reboot the host), if passthrough is
> enabled?
>
> I tried it with:
>
> $ sudo virsh save NewWin10 NewWin10.saved
> error: Failed to save domain NewWin10 to NewWin10.saved
> error: Requested operation is not valid: domain has assigned non-USB host
> devices
>
> Presumably the "non-USB devices" refers to the passthrough GPU, whose
> state cannot be saved. Is there a workaround for this?
>
> poc
>
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