feat: change default build target to riscv64 (#1104)

.devcontainer/Dockerfile

@@ -0,0 +1,8 @@
+From docker.educg.net/cg/os-contest:20250226
+
+RUN apt install -y --no-install-recommends \
+    bison flex libssl-dev bridge-utils dnsmasq sudo iptables
+
+RUN cargo install --git https://github.com/Samuka007/DADK.git --branch kpartx-docker-support
+
+ENTRYPOINT ["tini", "--"]

.devcontainer/devcontainer.json

@@ -1,6 +1,9 @@
 {
     "name": "OSCOMP Container",
-    "image": "docker.educg.net/cg/os-contest:20250226",
+    // "image": "docker.educg.net/cg/os-contest:20250226",
+    "build": {
+        "dockerfile": "Dockerfile"
+    },
     "runArgs": [
         "--privileged"
     ],

Makefile

@@ -43,7 +43,7 @@ all: kernel user
 
 
 .PHONY: kernel
-kernel: check_arch
+kernel: check_arch update-submodules
 	mkdir -p bin/kernel/
 	
 	$(MAKE) -C ./kernel all ARCH=$(ARCH) || (sh -c "echo 内核编译失败" && exit 1)
@@ -160,7 +160,7 @@ log-monitor:
 update-submodules:
 	@echo "更新子模块"
 	@git submodule update --recursive --init
-	@git submodule foreach git pull origin master
+	# @git submodule foreach git pull origin master
 
 .PHONY: update-submodules-by-mirror
 update-submodules-by-mirror:

README.md

@@ -1,15 +1,32 @@
+# 👋 欢迎来到 2025 OSCOMP DragonOS ～
+欢迎大家使用 DragonOS 作为内核实现赛道的基座系统！
+
+## OSCOMP Roadmap
+目前 DragonOS 正在紧锣密鼓适配 OSCOMP 的基座需求，同时也欢迎大家围绕下列部分添加实现～
+- [ ] RISC-V
+  - [ ] VirtIO base TTY
+  - [x] Bootable Kernel
+- [ ] LoongArch
+- [ ] ext4 (正在实现)
+- [ ] 优化启动内存序，允许qemu -kernel启动
+- [ ] busybox (DragonOS使用的是NovaShell)
+
+## 在 OSCOMP 下构建 riscv64
+本分支已将默认 Target 设为 riscv64
+
+### Quick Start
+因为使用 CI 镜像工具链，在不额外配置环境的情况下先不构建用户程序
+
+打开 VS Code ，安装 devcontainer 插件并进入 devcontainer 环境
+```sh
+make kernel && make write_diskimage && make qemu
+```
+
 > [!TIP]
-> # 👋 欢迎来到 2025 OSCOMP DragonOS ～
+> 如果没有看到提示进入 devcontainer 环境，可以 `ctrl+shift+p` 找到 `Dev Containers: Reopen in Container`。
-> 欢迎大家使用 DragonOS 作为内核实现赛道的基座系统！
+> 第一次构建可能时间会有些久，尤其是拉取 CI 镜像时，请耐心一些～
-> ## OSCOMP Roadmap
+
-> 目前 DragonOS 正在紧锣密鼓适配 OSCOMP 的基座需求，同时也欢迎大家围绕下列部分添加实现～
+---
-> - [ ] RISC-V
->   - [ ] VirtIO base TTY
->   - [x] Bootable Kernel
-> - [ ] LoongArch
-> - [ ] ext4 (正在实现)
-> - [ ] 优化启动内存序，允许qemu -kernel启动
-> - [ ] busybox (DragonOS使用的是NovaShell)
 
 </br>
 </br>

oscomp/run-qemu.sh

@@ -0,0 +1,233 @@
+# From tools/run-qemu.sh, mainly remove the sudo for container environment
+# 
+# REFERENCE:
+# qemu-system-riscv64 -machine virt -kernel ../bin/kernel/kernel -m {mem} -nographic -smp {smp} -bios default -drive file={fs},if=none,format=raw,id=x0 \
+#                     -device virtio-blk-device,drive=x0,bus=virtio-mmio-bus.0 -no-reboot -device virtio-net-device,netdev=net -netdev user,id=net \
+#                     -rtc base=utc \
+#                     -drive file=disk.img,if=none,format=raw,id=x1 -device virtio-blk-device,drive=x1,bus=virtio-mmio-bus.1
+
+check_dependencies()
+{
+    # Check if qemu is installed
+    if [ -z "$(which qemu-system-x86_64)" ]; then
+        echo "Please install qemu first!"
+        exit 1
+    fi
+
+    # Check if brctl is installed
+    if [ -z "$(which brctl)" ]; then
+        echo "Please install bridge-utils first!"
+        exit 1
+    fi
+
+    # Check if dnsmasq is installed
+    if [ -z "$(which dnsmasq)" ]; then
+        echo "Please install dnsmasq first!"
+        exit 1
+    fi
+
+    # Check if iptable is installed
+    if [ -z "$(which iptables)" ]; then
+        echo "Please install iptables first!"
+        exit 1
+    fi
+
+}
+
+check_dependencies
+
+# 进行启动前检查
+flag_can_run=1
+ARGS=`getopt -o p -l bios:,display: -- "$@"`
+eval set -- "${ARGS}"
+echo "$@"
+allflags= 
+# allflags=$(qemu-system-x86_64 -cpu help | awk '/flags/ {y=1; getline}; y {print}' | tr ' ' '\n' | grep -Ev "^$" | sed -r 's|^|+|' | tr '\n' ',' | sed -r "s|,$||")
+# 设置ARCH环境变量，如果没有设置，就默认为x86_64
+export ARCH=${ARCH:=x86_64}
+echo "ARCH=${ARCH}"
+#ARCH="i386"
+# 请根据自己的需要，在-d 后方加入所需的 trace 事件
+
+# 标准的trace events
+qemu_trace_std=cpu_reset,guest_errors,trace:virtio*,trace:e1000e_rx*,trace:e1000e_tx*,trace:e1000e_irq*
+# 调试usb的trace
+qemu_trace_usb=trace:usb_xhci_reset,trace:usb_xhci_run,trace:usb_xhci_stop,trace:usb_xhci_irq_msi,trace:usb_xhci_irq_msix,trace:usb_xhci_port_reset,trace:msix_write_config,trace:usb_xhci_irq_msix,trace:usb_xhci_irq_msix_use,trace:usb_xhci_irq_msix_unuse,trace:usb_xhci_irq_msi,trace:usb_xhci_*
+
+# 根据架构设置qemu的加速方式
+if [ ${ARCH} == "i386" ] || [ ${ARCH} == "x86_64" ]; then
+  qemu_accel="kvm"
+  if [ $(uname) == Darwin ]; then
+    qemu_accel=hvf
+  else
+    # 判断系统kvm模块是否加载
+    if [ ! -e /dev/kvm ]; then
+      # kvm模块未加载，使用tcg加速
+      qemu_accel="tcg"
+    fi
+  fi
+fi
+
+# uboot版本
+UBOOT_VERSION="v2023.10"
+RISCV64_UBOOT_PATH="arch/riscv64/u-boot-${UBOOT_VERSION}-riscv64"
+
+
+DISK_NAME="disk-image-${ARCH}.img"
+
+QEMU=qemu-system-${ARCH}
+QEMU_DISK_IMAGE="../bin/${DISK_NAME}"
+QEMU_MEMORY="512M"
+QEMU_MEMORY_BACKEND="dragonos-qemu-shm.ram"
+QEMU_MEMORY_BACKEND_PATH_PREFIX="/dev/shm"
+QEMU_SHM_OBJECT="-object memory-backend-file,size=${QEMU_MEMORY},id=${QEMU_MEMORY_BACKEND},mem-path=${QEMU_MEMORY_BACKEND_PATH_PREFIX}/${QEMU_MEMORY_BACKEND},share=on "
+QEMU_SMP="2,cores=2,threads=1,sockets=1"
+QEMU_MONITOR="-monitor stdio"
+QEMU_TRACE="${qemu_trace_std}"
+QEMU_CPU_FEATURES=""
+QEMU_RTC_CLOCK=""
+QEMU_SERIAL_LOG_FILE="../serial_opt.txt"
+QEMU_SERIAL="-serial file:${QEMU_SERIAL_LOG_FILE}"
+QEMU_DRIVE="id=disk,file=${QEMU_DISK_IMAGE},if=none"
+QEMU_ACCELARATE=""
+QEMU_ARGUMENT=""
+QEMU_DEVICES=""
+BIOS_TYPE=""
+#这个变量为true则使用virtio磁盘
+VIRTIO_BLK_DEVICE=false
+# 如果qemu_accel不为空
+if [ -n "${qemu_accel}" ]; then
+    QEMU_ACCELARATE=" -machine accel=${qemu_accel} "
+  if [ "${qemu_accel}" == "kvm" ]; then
+    QEMU_ACCELARATE+=" -enable-kvm "
+  fi
+fi
+
+if [ ${ARCH} == "i386" ] || [ ${ARCH} == "x86_64" ]; then
+    QEMU_MACHINE=" -machine q35,memory-backend=${QEMU_MEMORY_BACKEND} "
+    QEMU_CPU_FEATURES+="-cpu IvyBridge,apic,x2apic,+fpu,check,+vmx,${allflags}"
+    QEMU_RTC_CLOCK+=" -rtc clock=host,base=localtime"
+    if [ ${VIRTIO_BLK_DEVICE} == false ]; then
+      QEMU_DEVICES_DISK+="-device ahci,id=ahci -device ide-hd,drive=disk,bus=ahci.0 "
+    else
+      QEMU_DEVICES_DISK="-device virtio-blk-pci,drive=disk -device pci-bridge,chassis_nr=1,id=pci.1 -device pcie-root-port "
+    fi
+
+else
+    QEMU_MACHINE=" -machine virt,memory-backend=${QEMU_MEMORY_BACKEND} -cpu sifive-u54 "
+    QEMU_DEVICES_DISK="-device virtio-blk-device,drive=disk "
+
+fi
+
+if [ ${ARCH} == "riscv64" ]; then
+# 如果是riscv64架构，就不需要图形界面
+    QEMU_ARGUMENT+=" --nographic "
+    # 从控制台显示
+    QEMU_MONITOR=""
+    QEMU_SERIAL=""
+fi
+
+while true;do
+    case "$1" in
+        --bios) 
+        case "$2" in
+              uefi) #uefi启动新增ovmf.fd固件
+              BIOS_TYPE=uefi
+            ;;
+              legacy)
+              BIOS_TYPE=legacy
+              ;;
+        esac;shift 2;;
+        --display)
+        case "$2" in
+              vnc)
+              QEMU_ARGUMENT+=" -display vnc=:00 "
+              ;;
+              window)
+              ;;
+              nographic)
+              QEMU_SERIAL=" -serial chardev:mux -monitor chardev:mux -chardev stdio,id=mux,mux=on,signal=off,logfile=${QEMU_SERIAL_LOG_FILE} "
+              QEMU_MONITOR=""
+              QEMU_ARGUMENT+=" --nographic "
+              QEMU_ARGUMENT+=" -kernel ../bin/kernel/kernel.elf "
+
+              ;;
+        esac;shift 2;;
+        *) break
+      esac 
+  done
+
+
+# ps: 下面这条使用tap的方式，无法dhcp获取到ip，暂时不知道为什么
+# QEMU_DEVICES="-device ahci,id=ahci -device ide-hd,drive=disk,bus=ahci.0 -net nic,netdev=nic0 -netdev tap,id=nic0,model=virtio-net-pci,script=qemu/ifup-nat,downscript=qemu/ifdown-nat -usb -device qemu-xhci,id=xhci,p2=8,p3=4 "
+QEMU_DEVICES+="${QEMU_DEVICES_DISK} "
+QEMU_DEVICES+=" -netdev user,id=hostnet0,hostfwd=tcp::12580-:12580 -device virtio-net-pci,vectors=5,netdev=hostnet0,id=net0 -usb -device qemu-xhci,id=xhci,p2=8,p3=4 " 
+# E1000E
+# QEMU_DEVICES="-device ahci,id=ahci -device ide-hd,drive=disk,bus=ahci.0 -netdev user,id=hostnet0,hostfwd=tcp::12580-:12580 -net nic,model=e1000e,netdev=hostnet0,id=net0 -netdev user,id=hostnet1,hostfwd=tcp::12581-:12581 -device virtio-net-pci,vectors=5,netdev=hostnet1,id=net1 -usb -device qemu-xhci,id=xhci,p2=8,p3=4 " 
+QEMU_ARGUMENT+="-d ${QEMU_DISK_IMAGE} -m ${QEMU_MEMORY} -smp ${QEMU_SMP} -boot order=d ${QEMU_MONITOR} -d ${qemu_trace_std} "
+
+QEMU_ARGUMENT+="-s ${QEMU_MACHINE} ${QEMU_CPU_FEATURES} ${QEMU_RTC_CLOCK} ${QEMU_SERIAL} -drive ${QEMU_DRIVE} ${QEMU_DEVICES} "
+QEMU_ARGUMENT+=" ${QEMU_SHM_OBJECT} "
+QEMU_ARGUMENT+=" ${QEMU_ACCELARATE} "
+
+
+
+# 安装riscv64的uboot
+install_riscv_uboot()
+{
+
+    if [ ! -d ${RISCV64_UBOOT_PATH} ]; then
+        echo "正在下载u-boot..."
+        uboot_tar_name="u-boot-${UBOOT_VERSION}-riscv64.tar.xz"
+        
+        uboot_parent_path=$(dirname ${RISCV64_UBOOT_PATH}) || (echo "获取riscv u-boot 版本 ${UBOOT_VERSION} 的父目录失败" && exit 1)
+
+        if [ ! -f ${uboot_tar_name} ]; then
+            wget https://mirrors.dragonos.org.cn/pub/third_party/u-boot/${uboot_tar_name} || (echo "下载riscv u-boot 版本 ${UBOOT_VERSION} 失败" && exit 1)
+        fi
+        echo "下载完成"
+        echo "正在解压u-boot到 '$uboot_parent_path'..."
+        mkdir -p $uboot_parent_path
+        tar xvf u-boot-${UBOOT_VERSION}-riscv64.tar.xz -C ${uboot_parent_path} || (echo "解压riscv u-boot 版本 ${UBOOT_VERSION} 失败" && exit 1)
+        echo "解压完成"
+        rm -rf u-boot-${UBOOT_VERSION}-riscv64.tar.xz
+    fi
+    echo "riscv u-boot 版本 ${UBOOT_VERSION} 已经安装"
+} 
+
+
+if [ $flag_can_run -eq 1 ]; then
+   
+
+# 删除共享内存
+rm -rf ${QEMU_MEMORY_BACKEND_PATH_PREFIX}/${QEMU_MEMORY_BACKEND}
+
+if [ ${BIOS_TYPE} == uefi ] ;then
+  if [ ${ARCH} == x86_64 ] ;then
+    ${QEMU} -bios arch/x86_64/efi/OVMF-pure-efi.fd ${QEMU_ARGUMENT}
+  elif [ ${ARCH} == i386 ] ;then
+    ${QEMU} -bios arch/i386/efi/OVMF-pure-efi.fd ${QEMU_ARGUMENT}
+  elif [ ${ARCH} == riscv64 ] ;then
+    install_riscv_uboot
+    ${QEMU} -kernel ${RISCV64_UBOOT_PATH}/u-boot.bin ${QEMU_ARGUMENT}
+  else
+    echo "不支持的架构: ${ARCH}"
+  fi
+else
+  # 如果是i386架构或者x86_64架构，就直接启动
+  if [ ${ARCH} == x86_64 ] || [ ${ARCH} == i386 ] ;then
+    ${QEMU} ${QEMU_ARGUMENT}
+  elif [ ${ARCH} == riscv64 ] ;then
+    # 如果是riscv64架构，就与efi启动一样
+    install_riscv_uboot
+    ${QEMU} -kernel ${RISCV64_UBOOT_PATH}/u-boot.bin ${QEMU_ARGUMENT}
+  else
+    echo "不支持的架构: ${ARCH}"
+  fi
+fi
+
+# 删除共享内存
+rm -rf ${QEMU_MEMORY_BACKEND_PATH_PREFIX}/${QEMU_MEMORY_BACKEND}
+else
+  echo "不满足运行条件"
+fi