Add virtio driver for aarch64 with only input for now, move keyboard,

mouse and other io logic to an io folder, make ps2 convert to linux
event codes like virtio, force modern mmio and gic version 2 on aarch64

GNUmakefile

@@ -4,7 +4,7 @@ include config.mk
 MAKEFLAGS += -rR
 .SUFFIXES:
 
-override QEMUFLAGS := -m $(MEMORY)
+override QEMUFLAGS := -m $(MEMORY) -global virtio-mmio.force-legacy=false
 override IMAGE_NAME := XunilOS-$(KARCH)
 
 .PHONY: all
@@ -39,12 +39,14 @@ run-hdd-x86_64: edk2-ovmf $(IMAGE_NAME).hdd
 .PHONY: run-aarch64
 run-aarch64: edk2-ovmf $(IMAGE_NAME).iso
 	qemu-system-$(KARCH) \
-		-M virt \
+		-M virt,gic-version=2,secure=off \
 		-cpu cortex-a72 \
 		-device ramfb \
 		-device qemu-xhci \
 		-device usb-kbd \
 		-device usb-mouse \
+		-device virtio-keyboard-device \
+		-device virtio-mouse-device \
 		-serial stdio \
 		-drive if=pflash,unit=0,format=raw,file=edk2-ovmf/ovmf-code-$(KARCH).fd,readonly=on \
 		-cdrom $(IMAGE_NAME).iso \