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#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# DESCRIPTION
# This implements the 'bootimg-biosxen' source plugin class for 'wic'
#
# Bootloader arguments: Xen args are separated from Linux ones at '---':
# eg.
# bootloader --append="console=com1,vga com1=115200,8n1 --- console=hvc0"
#
# Optional source param: initrd
# accepts multiple ramdisk files to be supplied to multiboot.
# eg.
# part /boot --source bootimg-biosxen --sourceparams="initrd=foo.initrd;bar.initrd"
#
# AUTHORS
# Christopher Clark <christopher.w.clark [at] gmail.com>
# Elements derived from bootimg-biosplusefi.py by:
# William Bourque <wbourque [at] gmail.com>
import logging
import os
import types
from wic import WicError
from wic.misc import (exec_cmd, get_bitbake_var)
from wic.plugins.source.bootimg_pcbios import BootimgPcbiosPlugin
logger = logging.getLogger('wic')
class BootimgBiosXenPlugin(BootimgPcbiosPlugin):
"""
Create MBR boot partition including files for Xen
"""
name = 'bootimg_biosxen'
@classmethod
def do_configure_partition(cls, part, source_params, creator, cr_workdir,
oe_builddir, bootimg_dir, kernel_dir,
native_sysroot):
"""
Called before do_prepare_partition(), creates syslinux config
"""
bootloader = creator.ks.bootloader
if not bootloader.configfile:
splash = os.path.join(cr_workdir, "/hdd/boot/splash.jpg")
if os.path.exists(splash):
splashline = "menu background splash.jpg"
else:
splashline = ""
syslinux_conf = ""
syslinux_conf += "PROMPT 0\n"
syslinux_conf += "TIMEOUT " + str(bootloader.timeout) + "\n"
syslinux_conf += "\n"
syslinux_conf += "ALLOWOPTIONS 1\n"
syslinux_conf += "\n"
if splashline:
syslinux_conf += "%s\n" % splashline
syslinux_conf += "DEFAULT boot\n"
syslinux_conf += "LABEL boot\n"
syslinux_conf += " KERNEL mboot.c32\n"
# Split the bootloader args at '---' to separate the Xen args
# from the Linux kernel args.
# The Xen args here are defaults; overridden by bootloader append.
xen_args = "console=com1,vga com1=115200,8n1"
kernel_append = ""
if bootloader.append:
separator_pos = bootloader.append.find('---')
if separator_pos != -1:
xen_args = bootloader.append[:separator_pos]
kernel_append = bootloader.append[separator_pos+3:]
else:
kernel_append = bootloader.append
kernel_args = "label=boot root=%s %s" % \
(creator.rootdev, kernel_append)
syslinux_conf += " APPEND /xen.gz %s --- /vmlinuz %s" % \
(xen_args, kernel_args)
initrd = source_params.get('initrd')
if initrd:
initrds = initrd.split(';')
for initrd_file in initrds:
syslinux_conf += " --- /%s" % os.path.basename(initrd_file)
syslinux_conf += "\n"
logger.debug("Writing syslinux config %s/hdd/boot/syslinux.cfg",
cr_workdir)
hdddir = "%s/hdd/boot" % cr_workdir
install_cmd = "install -d %s" % hdddir
exec_cmd(install_cmd)
cfg = open("%s/hdd/boot/syslinux.cfg" % cr_workdir, "w")
cfg.write(syslinux_conf)
cfg.close()
else:
super().do_configure_partition(part, source_params,
creator, cr_workdir,
oe_builddir, bootimg_dir,
kernel_dir, native_sysroot)
@classmethod
def do_prepare_partition(cls, part, source_params, creator, cr_workdir,
oe_builddir, bootimg_dir, kernel_dir,
rootfs_dir, native_sysroot):
"""
Called to do the actual content population for a partition i.e. it
'prepares' the partition to be incorporated into the image.
"""
bootimg_dir = super()._get_bootimg_dir(bootimg_dir, 'syslinux')
hdddir = "%s/hdd/boot" % cr_workdir
# machine-deduction logic originally from isoimage-isohybrid.py
initrd_dir = get_bitbake_var("DEPLOY_DIR_IMAGE")
if not initrd_dir:
raise WicError("Couldn't find DEPLOY_DIR_IMAGE, exiting.")
machine = os.path.basename(initrd_dir)
xen = "xen-" + machine + ".gz"
cmds = ["install -m 0644 %s/%s %s/xen.gz" %
(kernel_dir, xen, hdddir),
"install -m 0644 %s/syslinux/mboot.c32 %s/mboot.c32" %
(bootimg_dir, hdddir)]
initrd = source_params.get('initrd')
# Allow multiple 'initrds', as per the bootimg-efi class.
# This can be used to install additional binaries for multiboot.
# eg. TXT ACMs, XSM/Flask policy file, microcode binary
if initrd:
initrds = initrd.split(';')
for initrd_file in initrds:
cmds.append("install -m 0644 %s/%s %s/%s" %
(kernel_dir, initrd_file, hdddir,
os.path.basename(initrd_file)))
for install_cmd in cmds:
exec_cmd(install_cmd)
super().do_prepare_partition(part, source_params,
creator, cr_workdir,
oe_builddir, bootimg_dir,
kernel_dir, rootfs_dir,
native_sysroot)
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