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