Xubuntu 20.04 Focal Fossa L4T R32.3.1 - Custom Image for the Jetson Nano

I tried to start win10 with these parameters :

-device virtio-gpu-pci,virgl=on,xres=1280,yres=720 -display sdl,gl=on

but Im freezed on this error :

someone of you already found it ? how you have fixed it ?

@mr.chrismitchells said : If you want to use KVM you must use the modified KVM DTB file for your Nano.

—> no if you use this : GitHub - OE4T/linux-tegra-4.9: NVIDIA downstream Linux kernel source Jetson platforms in single-repo form, derived from the L4T R32.x series BSP