Load kernel on qemu/k210.

os/Makefile

@@ -0,0 +1,61 @@
+# Building
+TARGET := riscv64gc-unknown-none-elf
+MODE := release
+KERNEL_ELF := target/$(TARGET)/$(MODE)/os
+KERNEL_BIN := $(KERNEL_ELF).bin
+DISASM_TMP := target/$(TARGET)/$(MODE)/asm
+
+# BOARD
+BOARD		?= qemu
+SBI			?= rustsbi
+BOOTLOADER	:= ../bootloader/$(SBI)-$(BOARD).bin
+
+# Run K210
+K210-SERIALPORT	= /dev/ttyUSB0
+K210-BURNER		= ../tools/kflash.py
+
+# Binutils
+OBJDUMP := rust-objdump --arch-name=riscv64
+OBJCOPY := rust-objcopy --binary-architecture=riscv64
+
+# Disassembly
+DISASM ?= -x
+
+build: $(KERNEL_BIN)
+
+$(KERNEL_BIN): kernel
+	@$(OBJCOPY) $(KERNEL_ELF) --strip-all -O binary $@
+
+kernel:
+	@cargo build --release
+
+clean:
+	@cargo clean
+
+disasm: kernel
+	@$(OBJDUMP) $(DISASM) $(KERNEL_ELF) | less
+
+disasm-vim: kernel
+	@$(OBJDUMP) $(DISASM) $(KERNEL_ELF) > $(DISASM_TMP)
+	@vim $(DISASM_TMP)
+	@rm $(DISASM_TMP)
+
+run: run-inner
+
+run-inner: build
+ifeq ($(BOARD),qemu)
+	@qemu-system-riscv64 \
+		-machine virt \
+		-nographic \
+		-bios $(BOOTLOADER) \
+		-device loader,file=$(KERNEL_BIN),addr=0x80020000
+else
+	@cp $(BOOTLOADER) $(BOOTLOADER).copy
+	@dd if=$(KERNEL_BIN) of=$(BOOTLOADER).copy bs=128K seek=1
+	@mv $(BOOTLOADER).copy $(KERNEL_BIN)
+	@sudo chmod 777 $(K210-SERIALPORT)
+	python3 $(K210-BURNER) -p $(K210-SERIALPORT) -b 1500000 $(KERNEL_BIN)
+	miniterm --eol LF --dtr 0 --rts 0 --filter direct $(K210-SERIALPORT) 115200
+endif
+
+.PHONY: build kernel clean disasm disasm-vim run-inner