kver    = 3.19.0-0.rc4.57.sa2.aarch64
use_efi = 1
modules = virtio.ko virtio_ring.ko virtio_mmio.ko virtio_scsi.ko
disks   = sda.img sdb.img sdc.img sdd.img sde.img sdf.img

all:	initrd $(disks) AAVMF_VARS.fd

ifeq ($(use_efi),1)
AAVMF_VARS.fd: /usr/share/AAVMF/AAVMF_VARS.fd
	cp $< $@
efi_params = \
	-drive if=pflash,format=raw,file=/usr/share/AAVMF/AAVMF_CODE.fd,readonly \
	-drive if=pflash,format=raw,file=AAVMF_VARS.fd
else
AAVMF_VARS.fd:
	touch $@
endif

initrd:	dev init $(modules)
	ls -1d $^ | cpio -o -H newc | gzip -9 > $@

dev:
	rm -rf $@
	mkdir $@

%.ko:
	find /lib/modules/$(kver) -name $@ -exec cp {} . \;

init:	init.c
	gcc -Wall -Werror -static $< -o $@

%.img:
	rm -f $@
	truncate -s $$(( RANDOM % 3 + 1 ))G $@
	echo '2048,,L' | sfdisk --force $@

clean:
	rm -f $(disks) $(modules) init initrd AAVMF_VARS.fd

kernel  = /boot/vmlinuz-$(kver)
qemu    = /usr/libexec/qemu-kvm

run:	initrd $(disks) AAVMF_VARS.fd
	$(qemu) \
	  -nodefconfig -nodefaults -display none \
	  -machine virt,accel=kvm \
	  -no-reboot \
	  -cpu host \
	  -m 1024 \
	  $(efi_params) \
	  -kernel $(kernel) -initrd initrd \
	  -append 'panic=1 earlyprintk=pl011,0x9000000 ignore_loglevel console=ttyAMA0 no_timer_check printk.time=1' \
	  -serial stdio \
	  -device virtio-scsi-device,id=scsi \
	  -drive file=sda.img,cache=writeback,format=raw,if=none,id=sda \
	  -device scsi-hd,drive=sda \
	  -drive file=sdb.img,cache=writeback,format=raw,if=none,id=sdb \
	  -device scsi-hd,drive=sdb \
	  -drive file=sdc.img,cache=writeback,format=raw,if=none,id=sdc \
	  -device scsi-hd,drive=sdc \
	  -drive file=sdd.img,cache=writeback,format=raw,if=none,id=sdd \
	  -device scsi-hd,drive=sdd \
	  -drive file=sde.img,cache=writeback,format=raw,if=none,id=sde \
	  -device scsi-hd,drive=sde \
	  -drive file=sdf.img,cache=writeback,format=raw,if=none,id=sdf \
	  -device scsi-hd,drive=sdf