Thank you, I managed to install msr on Qubes like this:
sudo qubes-dom0-update wrmsr
Then I do the following:
sudo modprobe msr
sudo rdmsr -p0 0x1A0 -f 38:38
0
sudo rdmsr -p0 0x1A0
811809
sudo wrmsr -a 0x1A0 0x4000811809
sudo rdmsr -p0 0x1A0 -f 38:38
0
Somehow the bit does not change and nothing happens… This is L15v3. Any help is appreciated.