AMD iGPU passthrough won't work

Hello,
I have a trigkey mini pc with the following specs:
AMD Ryzen 7 5800H with Radeon graphics
24GB ram
512GB ssd
my problem is i can't get the integrated GPU to passthrough.
I have all the drivers and guest tools installed but nothing shows on my monitor but when i check device manager i get the error 43 warning,
can someone please help
thank you