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