[feat] Simple Disk Benchmark

Makefile

@@ -119,16 +119,26 @@ build/fonts/%.o: fonts/%.cpp | _bd
 	@g++ $(KERNEL_CXXFLAGS) -c $< -o $@
 
 vdir: all
-	@mkdir -p vdir/EFI/BOOT
+	@mkdir -p vdir/EFI/BOOT vdir/sys
 	@cp build/BOOTX64.EFI vdir/EFI/BOOT
 	@cp build/Kernel.elf vdir/
+	@cp -r resources vdir/sys/
 
-run: vdir
+disk: vdir
+	@echo "* Building FAT32 disk image (128 MiB)..."
+	@dd if=/dev/zero of=build/disk.img bs=1M count=128 status=none
+	@mformat -i build/disk.img -F -T 262144 -h 16 -s 32 ::
+	@mmd -i build/disk.img ::/EFI ::/EFI/BOOT ::/sys
+	@mcopy -i build/disk.img -s vdir/EFI/BOOT/BOOTX64.EFI ::/EFI/BOOT/
+	@mcopy -i build/disk.img -s vdir/Kernel.elf ::/
+	@mcopy -i build/disk.img -s vdir/sys/resources ::/sys/
+
+run: disk
 	@echo "Launching QEMU"
-	@qemu-system-x86_64 -bios /usr/share/ovmf/OVMF.fd -net none -drive file=fat:rw:vdir,index=0,format=vvfat -serial file:serial.log -serial stdio -s -S
+	@qemu-system-x86_64 -bios /usr/share/ovmf/OVMF.fd -net none -drive file=build/disk.img,index=0,format=raw -serial file:serial.log -s -S
 
 clean:
 	@echo "Cleaning old files"
 	@rm -rf build vdir
 
-.PHONY: all vdir run clean _bd
+.PHONY: all vdir disk run clean _bd