# Help runqemu boot target board, "QB" means Qemu Boot, the following # vars can be set in conf files, such as to make it can be # boot by runqemu: # # QB_SYSTEM_NAME: qemu name, e.g., "qemu-system-i386" # QB_OPT_APPEND: options to append to qemu, e.g., "-show-cursor" # QB_DEFAULT_KERNEL: default kernel to boot, e.g., "bzImage" # QB_DEFAULT_FSTYPE: default FSTYPE to boot, e.g., "ext4" # QB_MEM: memory, e.g., "-m 512" # QB_MACHINE: qemu machine, e.g., "-machine virt" # QB_CPU: qemu cpu, e.g., "-cpu qemu32" # QB_CPU_KVM: the similar to QB_CPU, but used when kvm, e.g., '-cpu kvm64', # set it when support kvm. # QB_KERNEL_CMDLINE_APPEND: options to append to kernel's -append # option, e.g., "console=ttyS0 console=tty" # QB_DTB: qemu dtb name # QB_AUDIO_DRV: qemu audio driver, e.g., "alsa", set it when support audio # QB_AUDIO_OPT: qemu audio option, e.g., "-soundhw ac97,es1370", used # when QB_AUDIO_DRV is set. # QB_KERNEL_ROOT: kernel's root, e.g., /dev/vda # QB_TAP_OPT: netowrk option for 'tap' mode, e.g., # "-netdev tap,id=net0,ifname=@TAP@,script=no,downscript=no -device virtio-net-device,netdev=net0" # Note, runqemu will replace "@TAP@" with the one which is used, such as tap0, tap1 ... # QB_SLIRP_OPT: network option for SLIRP mode, e.g., # "-netdev user,id=net0 -device virtio-net-device,netdev=net0" # QB_ROOTFS_OPT: used as rootfs, e.g., # "-drive id=disk0,file=@ROOTFS@,if=none,format=raw -device virtio-blk-device,drive=disk0" # Note, runqemu will replace "@ROOTFS@" with the one which is used, such as core-image-minimal-qemuarm64.ext4. # QB_SERIAL_OPT: serial port, e.g., "-serial mon:stdio" # QB_TCPSERIAL_OPT: tcp serial port option, e.g., # " -device virtio-serial-device -chardev socket,id=virtcon,port=@PORT@,host=127.0.0.1 -device virtconsole,chardev=virtcon" # Note, runqemu will replace "@PORT@" with the port number which is used. # # Usage: # IMAGE_CLASSES += "qemuboot" # See "runqemu help" for more info QB_MEM ?= "-m 256" QB_SERIAL_OPT ?= "-serial mon:stdio -serial null" QB_DEFAULT_KERNEL ?= "${KERNEL_IMAGETYPE}" QB_DEFAULT_FSTYPE ?= "ext4" QB_OPT_APPEND ?= "-show-cursor" # Create qemuboot.conf ROOTFS_POSTPROCESS_COMMAND += "write_qemuboot_conf; " def qemuboot_vars(d): build_vars = ['MACHINE', 'TUNE_ARCH', 'DEPLOY_DIR_IMAGE', 'KERNEL_IMAGETYPE', 'IMAGE_NAME', 'IMAGE_LINK_NAME', 'STAGING_DIR_NATIVE', 'STAGING_BINDIR_NATIVE', 'STAGING_DIR_HOST'] return build_vars + [k for k in d.keys() if k.startswith('QB_')] write_qemuboot_conf[vardeps] += "${@' '.join(qemuboot_vars(d))}" python write_qemuboot_conf() { import configparser qemuboot = "%s/%s.qemuboot.conf" % (d.getVar('DEPLOY_DIR_IMAGE', True), d.getVar('IMAGE_NAME', True)) qemuboot_link = "%s/%s.qemuboot.conf" % (d.getVar('DEPLOY_DIR_IMAGE', True), d.getVar('IMAGE_LINK_NAME', True)) cf = configparser.ConfigParser() cf.add_section('config_bsp') for k in qemuboot_vars(d): cf.set('config_bsp', k, '%s' % d.getVar(k, True)) # QB_DEFAULT_KERNEL's value of KERNEL_IMAGETYPE is the name of a symlink # to the kernel file, which hinders relocatability of the qb conf. # Read the link and replace it with the full filename of the target. kernel_link = os.path.join(d.getVar('DEPLOY_DIR_IMAGE', True), d.getVar('QB_DEFAULT_KERNEL', True)) kernel = os.path.realpath(kernel_link) cf.set('config_bsp', 'QB_DEFAULT_KERNEL', kernel) bb.utils.mkdirhier(os.path.dirname(qemuboot)) with open(qemuboot, 'w') as f: cf.write(f) if os.path.lexists(qemuboot_link): os.remove(qemuboot_link) os.symlink(os.path.basename(qemuboot), qemuboot_link) }