# Linux Kernel Module Cheat
The perfect emulation setup to study and develop the <<linux-kernel>> v5.9.2, kernel modules, <<qemu-buildroot-setup,QEMU>>, <<gem5-buildroot-setup,gem5>> and x86_64, ARMv7 and ARMv8 <<userland-assembly,userland>> and <<baremetal-setup,baremetal>> assembly, <<c,ANSI C>>, <<cpp,C++>> and <<posix,POSIX>>. <<gdb>> and <<kgdb>> just work. Powered by <<about-the-qemu-buildroot-setup,Buildroot>> and <<about-the-baremetal-setup,crosstool-NG>>. Highly automated. Thoroughly documented. Automated <<test-this-repo,tests>>.

##### 14.2.2.3. QEMU graphic mode arm VGA

TODO: how to use VGA on ARM? https://stackoverflow.com/questions/20811203/how-can-i-output-to-vga-through-qemu-arm Tried:

    -device VGA

But https://github.com/qemu/qemu/blob/v2.12.0/docs/config/mach-virt-graphical.cfg#L264 says:

    # We use virtio-gpu because the legacy VGA framebuffer is
    # very troublesome on aarch64, and virtio-gpu is the only
    # video device that doesn't implement it.

so maybe it is not possible?