target/linux/armsr/README

   1 This target generates images that can be used on ARM machines with EFI
   2 support (e.g EDKII/TianoCore or U-Boot with bootefi).
   3
   4 There are two subtargets:
   5 - armv7 for 32-bit machines
   6 - armv8 for 64-bit machines
   7
   8 The kernel and filesystem images can also be used directly by QEMU:
   9
  10 Run with qemu-system-arm
  11
  12         # boot with initramfs embedded in
  13         qemu-system-arm -nographic -M virt -m 64 -kernel openwrt-armsr-armv7-generic-initramfs-kernel.bin
  14
  15         # boot with accel=kvm
  16         qemu-system-arm -nographic -M virt,accel=kvm -cpu host -m 64 -kernel
  17         openwrt-armsr-armv7-generic-initramfs-kernel.bin
  18
  19         # boot with a separate rootfs
  20         qemu-system-arm -nographic -M virt -m 64 -kernel openwrt-armsr-armv7-generic-kernel.bin \
  21           -drive file=openwrt-armsr-armv7-generic-ext4-rootfs.img,format=raw,if=virtio -append 'root=/dev/vda rootwait'
  22
  23         # boot with local dir as rootfs
  24         qemu-system-arm -nographic -M virt -m 64 -kernel openwrt-armsr-armv7-generic-kernel.bin \
  25           -fsdev local,id=rootdev,path=root-armsr/,security_model=none \
  26           -device virtio-9p-pci,fsdev=rootdev,mount_tag=/dev/root \
  27           -append 'rootflags=trans=virtio,version=9p2000.L,cache=loose rootfstype=9p'
  28
  29 Run with kvmtool
  30
  31         # start a named machine
  32         lkvm run -k openwrt-armsr-armv7-zImage -i openwrt-armsr-armv7-rootfs.cpio --name armsr0
  33
  34         # start with virtio-9p rootfs
  35         lkvm run -k openwrt-armsr-armv7-zImage -d root-armsr/
  36
  37         # stop "armsr0"
  38         lkvm stop --name armsr0
  39
  40         # stop all
  41         lkvm stop --all
  42
  43 The multi-platform ARMv8 target can be used with QEMU:
  44
  45         qemu-system-aarch64 -machine virt -cpu cortex-a57 -nographic \
  46                 -kernel openwrt-armsr-armv8-generic-initramfs-kernel.bin \
  47
  48 With a EDKII or U-Boot binary for the QEMU ARM virtual machines, you can use these
  49 images in EFI mode:
  50
  51 32-bit:
  52 gunzip -c bin/targets/armsr/armv7/openwrt-armsr-armv7-generic-ext4-combined.img.gz > openwrt-arm-32.img
  53 qemu-system-arm -nographic \
  54     -cpu cortex-a15 -machine virt \
  55     -bios QEMU_EFI_32.fd \
  56     -smp 1 -m 1024 \
  57     -device virtio-rng-pci \
  58     -drive file=openwrt-arm-32.img,format=raw,index=0,media=disk \
  59     -netdev user,id=testlan -net nic,netdev=testlan \
  60     -netdev user,id=testwan -net nic,netdev=testwan
  61
  62 64-bit:
  63 gunzip -c bin/targets/armsr/armv8/openwrt-armsr-armv8-generic-ext4-combined.img.gz > openwrt-arm-64.img
  64 qemu-system-aarch64 -nographic \
  65     -cpu cortex-a53 -machine virt \
  66     -bios QEMU_EFI_64.fd \
  67     -smp 1 -m 1024 \
  68     -device virtio-rng-pci \
  69     -drive file=openwrt-arm-64.img,format=raw,index=0,media=disk \
  70     -netdev user,id=testlan -net nic,netdev=testlan \
  71     -netdev user,id=testwan -net nic,netdev=testwan
  72
  73 One can find EFI/BIOS binaries from:
  74 - Compile mainline U-Boot for the QEMU ARM virtual machine (qemu_arm_defconfig/qemu_arm64_defconfig)
  75 - From distribution packages (such as qemu-efi-arm and qemu-efi-aarch64 in Debian)
  76 - Community builds, like retrage/edk2-nightly: https://retrage.github.io/edk2-nightly/