Thank you for the info. I’ve first tried to kexec on my 12th gen Intel laptop with no success and later I’ve tested the same thing on another laptop with 4th gen Intel and it worked there without any problem:
I can load files into memory without a problem but kexec -e just hangs.
I can kexec into dom0 on my 12th gen Intel laptop but not into Xen.
There seems to be some hardware specific problem with kexec’ing into Xen. I’ll need to get access to serial port to debug Xen this problem on 12th gen laptop.