BOOT_SRC := boot/uefi/main.c

# number of vCPUs. anything above 1 is required for SMP work (AP bringup).
SMP ?= 4

SRC := $(KERNEL_SRC) $(ARCH_SRC) $(ARCH_ASM_SRC) $(BOOT_SRC)
OBJ := $(patsubst %,$(BUILD)/%.o,$(SRC))
DEP := $(OBJ:.o=.d)

.PHONY: run
run: $(EFI)
	@mkdir -p $(BUILD_BOOT)/esp/EFI/BOOT
	cp $(EFI) $(BUILD_BOOT)/esp/EFI/BOOT/BOOTX64.EFI
	@test -f $(BUILD_BOOT)/OVMF_VARS.fd || cp /usr/share/edk2-ovmf/OVMF_VARS.fd $(BUILD_BOOT)/OVMF_VARS.fd
	qemu-system-x86_64 -m 128M -smp $(SMP) -no-reboot \
		-drive if=pflash,format=raw,readonly=on,file=/usr/share/edk2-ovmf/OVMF_CODE.fd \
		-drive if=pflash,format=raw,file=$(BUILD_BOOT)/OVMF_VARS.fd \
		-drive format=raw,file=fat:rw:$(BUILD_BOOT)/esp \
		-nographic

$(EFI): $(OBJ)
	@mkdir -p $(dir $@)
	lld-link -subsystem:efi_application -entry:efi_main -nodefaultlib -out:$@ $^

-include $(DEP)