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Re: [vfio-users] Saving/restoring VFIO VMs



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 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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