IGD device 0000:00:02.0 has no ROM ,legacy mode disabled

we can add the disable stolen memory patch to resolve this problem

If you don't want to add this patch to kernel, you also can enable stolen memory patch in Qemu side.

git clone git://git.qemu.org/qemu.git

cd qemu

git checkout v4.2.0

git revert 93587e3af3a // enable stolen memory patch if you didn't do it in kernel side

./configure --prefix=/usr \

--target-list=x86_64-softmmu

make -j8

make install