[vfio-users] Preventing host from going into sleep

[Colin Godsey]

I eventually just set up a script that looks for active qemu/kvm instances
every 15 minutes. I set up the guests to hibernate, because for some reason
the… ‘double sleeping’ of the guest and host seem to put the GPUs in a
weird state when it wakes. After this, I just have a systemd hook for
suspend/resume that fires the instances back up when the host wakes.

It actually works pretty flawlessly in the end. I probably sleep/unsleep
the thing a few times a day with no lockups or issues at all, I just have
to make sure i never manually suspend it.

On Wed, Jun 22, 2016 at 1:01 AM Samuel Holland <samuel at sholland.org> wrote:

> On 06/22/2016 12:01 AM, Nicolas Roy-Renaud wrote:
> > By the looks of it, I can't write a wrapper script for qemu-system
> > either since libvirt doesn't launch it with the same capabilities as
> > a regular user, and the dbus calls coming from sysd-inhibit fail.
>
> You should be able to change the permissions to the dbus interface so
> that you can call it from a wrapper.
>
> --
> Regards,
> Samuel Holland <samuel at sholland.org>
>
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