libvirt hooks not working

[alturismo]

Hi,

 

as we have libvirt 6.5, shouldnt it be possible to use hook scripts ?

 

i created the folder /etc/libvirt/hooks/qemu.d/ where the scripts should be executed ordered by name (i only need 1)

 

so in my case i added a script work_gvt.sh, chmod +x, with the following content (also a test output which also doesnt get executed)

 

#!/bin/bash

echo "Testrun" > /mnt/cache/testrun.txt

if [ $# -ge 3 ]; then
    if [ $1 = "Work_gvt" -a $2 = "prepare" -a $3 = "begin" ]; then
        echo "Creating vgpu"
        echo ee0036c0-8e21-40b2-9f33-8d5c5f6f5f93 > "/sys/devices/pci0000:00/0000:00:02.0/mdev_supported_types/i915-GVTg_V5_8/create"
    elif [ $1 = "Work_gvt" -a $2 = "release" -a $3 = "end" ]; then
        echo "removing vgpu"
        echo 1 > "/sys/devices/pci0000:00/0000:00:02.0/ee0036c0-8e21-40b2-9f33-8d5c5f6f5f93/remove"
    fi
fi

 

so question is, only possible to modify the limetech qemu file to initiate things ... which shouldnt be the goal i d guess.

Edited February 21, 2021 by alturismo

[SimonF]

Hi @alturismo 

 

I have a similar requirements for a plugin and have a post in the programming section. qemu in the hooks dir would need to be modified to provide the support you are looking for. 

 

 

[SimonF]

Hi @alturismo working with ljm42 & ich777  on a new suggested hooks file, this my current prototype suggested directory structure.

 

root@computenode:/etc/libvirt/hooks# tree
.
├── qemu
├── qemu.d
│   ├── #all
│   │   ├── prepare
│   │   │   └── USB_Manager
│   │   ├── start
│   │   │   └── VM_Manager
│   │   └── stopped
│   │       └── USB_Manager -> /etc/libvirt/hooks/qemu.d/#all/prepare/USB_Manager
│   ├── Ubuntu
│   │   ├── start
│   │   └── stopped
│   │       └── gvt
│   └── Windows 10 test4
│       ├── prepare
│       │   └── gvt
│       └── release
│           └── gvt
├── qemu.old
├── qemu.orig
└── qemu_hook_version

 

 

[SimonF]

On 2/21/2021 at 8:29 AM, alturismo said:

 /etc/libvirt/hooks/qemu.d/ where the scripts should be executed ordered by name (i only need 1)

this works in 6.10 as use for my usb manager plugin

[alturismo]

5 hours ago, SimonF said:

this works in 6.10 as use for my usb manager plugin

 

i saw that already, i had my old scripts in there and after 1st boot on 6.10 my gvt-g VM's didnt work, until i figured my old crap was in there 

 

thanks for the note anyway