397 lines
16 KiB
Bash
Executable File
397 lines
16 KiB
Bash
Executable File
#! /bin/sh
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set -e
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# grub-mkconfig helper script.
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# Copyright (C) 2006,2007,2008,2009,2010 Free Software Foundation, Inc.
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#
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# GRUB is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# GRUB is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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prefix="/usr"
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exec_prefix="/usr"
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datarootdir="/usr/share"
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. "$pkgdatadir/grub-mkconfig_lib"
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CLASS="--class gnu-linux --class gnu --class os --class acrn"
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# read ACRN config (board/scenario) from debconf
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ACRN_BOARD=$(echo "get acrn-hypervisor/board" | debconf-communicate || true)
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if [ "$(echo "${ACRN_BOARD}" | awk '{print $1}')" != "0" ]; then
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gettext_printf "ACRN: Cannot access debconf acrn-hypervisor/board: %s" "${ACRN_BOARD}\n" >&2
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exit 0
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fi
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ACRN_BOARD="$(echo "${ACRN_BOARD}" | awk '{print $2}')"
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ACRN_SCENARIO=$(echo "get acrn-hypervisor/scenario" | debconf-communicate || true)
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if [ "$(echo "${ACRN_SCENARIO}" | awk '{print $1}')" != "0" ]; then
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gettext_printf "ACRN: Cannot access debconf acrn-hypervisor/:scenario %s" "${ACRN_SCENARIO}\n" >&2
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exit 0
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fi
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ACRN_SCENARIO="$(echo "${ACRN_SCENARIO}" | awk '{print $2}')"
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# we obtain any data from scenario config
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ACRN_SCENARIO_FILE=/usr/lib/x86_64-linux-gnu/acrn/${ACRN_BOARD}/${ACRN_SCENARIO}/scenario.xml
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if [ ! -f ${ACRN_SCENARIO_FILE} ]; then
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gettext_printf "ACRN: Missing scenario config %s\n" "${ACRN_SCENARIO_FILE}" >&2
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exit 0
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fi
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# get list of vm ids from scenario config
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ACRN_VM_IDS=$(xmllint --xpath '//vm/@id' ${ACRN_SCENARIO_FILE} 2>/dev/null | sed 's/\s*id="\([^"]*\)"/\1/g')
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if [ -z "${ACRN_VM_IDS}" ]; then
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gettext_printf "ACRN: No VMs defined in scenario config %s" "${ACRN_SCENARIO_FILE}\n" >&2
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exit 0
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fi
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# get number of configured pre-launched VMs
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ACRN_PRE_LAUNCHED_VM_COUNT=$(xmllint --xpath "count(//vm[load_order=\"PRE_LAUNCHED_VM\"])" ${ACRN_SCENARIO_FILE})
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for id in ${ACRN_VM_IDS}; do
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# get grub relevant data from scenario configuration (ugly handling of pseudo array in conventional shell, sigh!)
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eval ACRN_LOAD_ORDER_VM${id}=$(xmllint --xpath "//vm[@id=\"${id}\"]/load_order/text()" ${ACRN_SCENARIO_FILE} 2>/dev/null || true)
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eval ACRN_NAME_VM${id}=$(xmllint --xpath "//vm[@id=\"${id}\"]/name/text()" ${ACRN_SCENARIO_FILE} 2>/dev/null || true)
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eval ACRN_KERN_MOD_VM${id}=$(xmllint --xpath "//vm[@id=\"${id}\"]/os_config/kern_mod/text()" ${ACRN_SCENARIO_FILE} 2>/dev/null || true)
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eval ACRN_RAMDISK_MOD_VM${id}=$(xmllint --xpath "//vm[@id=\"${id}\"]/os_config/ramdisk_mod/text()" ${ACRN_SCENARIO_FILE} 2>/dev/null || true)
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eval ACRN_ACPI_MOD_VM${id}=$(xmllint --xpath "//vm[@id=\"${id}\"]/os_config/acpi_mod_tag/text()" ${ACRN_SCENARIO_FILE} 2>/dev/null || true)
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# eventually store Service VM id
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[ "$(eval echo \${ACRN_LOAD_ORDER_VM${id}})" = "SERVICE_VM" ] && ACRN_SERVICE_VM_ID=${id}
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if [ "$(eval echo \${ACRN_LOAD_ORDER_VM${id}})" = "PRE_LAUNCHED_VM" ]; then
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# pre-launched VMs always need ACPI data, eventually set acpi_mod_tag to default
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if [ -z "$(eval echo \${ACRN_ACPI_MOD_VM${id}})" ]; then
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eval ACRN_ACPI_MOD_VM${id}="ACPI_VM${id}"
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eval GRUB_ACRN_MOD_ACPI_VM${id}="/boot/ACPI_VM${id}.bin"
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fi
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fi
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done
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# get performance policy parameter from scenario configuration
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ACRN_CPU_PERF_POLICY=$(xmllint --xpath '//CPU_PERFORMANCE_POLICY/text()' ${ACRN_SCENARIO_FILE} 2>/dev/null || true)
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if [ -z "${ACRN_CPU_PERF_POLICY}" ]; then
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ACRN_CPU_PERF_POLICY=Performance
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fi
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GRUB_CMDLINE_ACRN="cpu_perf_policy=${ACRN_CPU_PERF_POLICY} ${GRUB_CMDLINE_ACRN}"
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if [ "x${GRUB_DISTRIBUTOR}" = "x" ] ; then
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OS=GNU/Linux
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else
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case ${GRUB_DISTRIBUTOR} in
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Ubuntu|Kubuntu)
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OS="${GRUB_DISTRIBUTOR}"
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;;
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*)
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OS="${GRUB_DISTRIBUTOR} GNU/Linux"
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;;
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esac
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CLASS="--class $(echo ${GRUB_DISTRIBUTOR} | tr 'A-Z' 'a-z' | cut -d' ' -f1|LC_ALL=C sed 's,[^[:alnum:]_],_,g') ${CLASS}"
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fi
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# loop-AES arranges things so that /dev/loop/X can be our root device, but
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# the initrds that Linux uses don't like that.
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case ${GRUB_DEVICE} in
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/dev/loop/*|/dev/loop[0-9])
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GRUB_DEVICE=$(losetup ${GRUB_DEVICE} | sed -e "s/^[^(]*(\([^)]\+\)).*/\1/")
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# We can't cope with devices loop-mounted from files here.
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case ${GRUB_DEVICE} in
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/dev/*) ;;
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*) exit 0 ;;
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esac
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;;
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esac
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# btrfs may reside on multiple devices. We cannot pass them as value of root= parameter
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# and mounting btrfs requires user space scanning, so force UUID in this case.
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if [ "x${GRUB_DEVICE_UUID}" = "x" ] || [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ] \
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|| ! test -e "/dev/disk/by-uuid/${GRUB_DEVICE_UUID}" \
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|| ( test -e "${GRUB_DEVICE}" && uses_abstraction "${GRUB_DEVICE}" lvm ); then
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LINUX_ROOT_DEVICE=${GRUB_DEVICE}
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else
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LINUX_ROOT_DEVICE=UUID=${GRUB_DEVICE_UUID}
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fi
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case x"$GRUB_FS" in
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xbtrfs)
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rootsubvol="$(make_system_path_relative_to_its_root /)"
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rootsubvol="${rootsubvol#/}"
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if [ "x${rootsubvol}" != x ]; then
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GRUB_CMDLINE_LINUX="rootflags=subvol=${rootsubvol} ${GRUB_CMDLINE_LINUX}"
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fi;;
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xzfs)
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rpool=$(${grub_probe} --device ${GRUB_DEVICE} --target=fs_label 2>/dev/null || true)
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bootfs="$(make_system_path_relative_to_its_root / | sed -e "s,@$,,")"
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LINUX_ROOT_DEVICE="ZFS=${rpool}${bootfs%/}"
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;;
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esac
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# add_mod_tag: Add entry for a module tag
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# add_mod_tag <tagtype> <tagname> <vmid>
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# tagtype: Type of tag: kernel, ramdisk, acpi
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# tagname: Name of the tag (from config)
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# vmid: ID of the repsective VM
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add_mod_tag()
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{
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local tagtype=$1
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local tagname=$2
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local vmid=$3
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# silently skip empty tagnames
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if [ -z "${tagname}" ]; then
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return
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fi
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local tagvalue="$(eval echo \${GRUB_ACRN_MOD_${tagname}})"
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if [ -n "${tagvalue}" ]; then
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local message="$(gettext_printf "Loading ACRN %s %s for %s" "VM${vmid}" "${tagtype}" "$(eval echo \${ACRN_NAME_VM${vmid}})")"
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local basename=$(basename ${tagvalue})
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local dirname=$(dirname ${tagvalue})
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local rel_dirname=$(make_system_path_relative_to_its_root $dirname)
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local modparams
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local loaderparams
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# kernel might add a command line
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[ "${tagtype}" = "kernel" ] && modparams="$(eval echo \${GRUB_ACRN_MOD_CMDLINE_${tagname}})"
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# ramdisk will not be unzipped
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[ "${tagtype}" = "ramdisk" ] && loaderparams="--nounzip"
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cat << EOF
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echo '$(echo "$message" | grub_quote)'
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${module_loader} ${loaderparams} ${rel_dirname}/${basename} ${tagname} ${modparams}
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EOF
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else
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gettext_printf "ACRN: GRUB_ACRN_MOD_${tagname} not set, skipping\n" >&2
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fi
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}
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add_prelaunched_vms()
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{
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# eventually also load data for pre-launched VMs
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for id in ${ACRN_VM_IDS}; do
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# we just care for pre-launched VMs
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[ "$(eval echo \${ACRN_LOAD_ORDER_VM${id}})" != "PRE_LAUNCHED_VM" ] && continue
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# start with kernel mod tag
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tagname="$(eval echo \${ACRN_KERN_MOD_VM${id}})"
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if [ -z "${tagname}" ]; then
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gettext_printf "ACRN: No kernel module tag set for %s(%s), skipping\n" "$(eval echo \${ACRN_NAME_VM${id}})" "VM${id}" >&2
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continue
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fi
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if [ -z "$(eval echo \${GRUB_ACRN_MOD_${tagname}})" ]; then
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gettext_printf "ACRN: GRUB_ACRN_MOD_${tagname} not set, skipping %s(%s)\n" "$(eval echo \${ACRN_NAME_VM${id}})" "VM${id}" >&2
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continue
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fi
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gettext_printf "Found ACRN pre-launched %s %s: %s\n" "VM${id}" "$(eval echo \${ACRN_NAME_VM${id}})" "$(eval echo \${GRUB_ACRN_MOD_${tagname}})">&2
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add_mod_tag kernel ${tagname} ${id}
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add_mod_tag acpi "$(eval echo \${ACRN_ACPI_MOD_VM${id}})" ${id}
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add_mod_tag ramdisk "$(eval echo \${ACRN_RAMDISK_MOD_VM${id}})" ${id}
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done
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}
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linux_entry ()
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{
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os="$1"
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version="$2"
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acrn_version="$3"
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args="$4"
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acrn_args="$5"
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if [ -z "$boot_device_id" ]; then
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boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")"
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fi
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title="$(gettext_printf "%s with ACRN hypervisor" "${os}")"
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echo "menuentry '$(echo "$title, with Linux ${version} (ACRN ${acrn_version})" | grub_quote)' ${CLASS} \$menuentry_id_option 'acrn-gnulinux-$boot_device_id' {"
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if [ -z "${prepare_boot_cache}" ]; then
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prepare_boot_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE_BOOT} | grub_add_tab)"
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fi
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printf '%s\n' "${prepare_boot_cache}"
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message="$(gettext_printf "Loading ACRN hypervisor %s ..." ${acrn_version})"
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cat << EOF
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echo '$(echo "$message" | grub_quote)'
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${acrn_loader} ${rel_acrn_dirname}/${acrn_basename} ${acrn_args} root=${linux_root_device_thisversion} ro ${args}
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EOF
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message="$(gettext_printf "Loading ACRN Service VM Linux kernel %s ..." ${version})"
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ktagname="$(eval echo \${ACRN_KERN_MOD_VM${ACRN_SERVICE_VM_ID}})"
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cat << EOF
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echo '$(echo "$message" | grub_quote)'
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${module_loader} ${rel_dirname}/${basename} ${ktagname} $(eval echo \${GRUB_ACRN_MOD_CMDLINE_${ktagname}})
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EOF
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if test -n "${initrd}"; then
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# TRANSLATORS: ramdisk isn't identifier. Should be translated.
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message="$(gettext_printf "Loading ACRN Service VM initial ramdisk ...")"
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rtagname="$(eval echo \${ACRN_RAMDISK_MOD_VM${ACRN_SERVICE_VM_ID}})"
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cat << EOF
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echo '$(echo "$message" | grub_quote)'
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${module_loader} --nounzip ${rel_dirname}/${initrd} ${rtagname}
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EOF
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fi
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add_prelaunched_vms
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cat << EOF
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}
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EOF
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}
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machine=$(uname -m)
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# ACRN only on x86_64 machines
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if [ "x${machine}" != "xx86_64" ]; then
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exit 0
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fi
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GENKERNEL_ARCH="x86"
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# ServiceVM: Gather all Linux images with ACRN support, i.e. CONFIG_ACRN_HSM is set
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linux_list=
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for i in /boot/vmlinu[xz]-* /vmlinu[xz]-* /boot/kernel-*; do
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if grub_file_is_not_garbage "$i"; then
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basename=$(basename $i)
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version=$(echo $basename | sed -e "s,^[^0-9]*-,,g")
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alt_version=$(echo $version | sed -e "s,\.old$,,g")
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dirname=$(dirname $i)
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config=
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for j in "${dirname}/config-${version}" "${dirname}/config-${alt_version}" "/etc/kernels/kernel-config-${version}" ; do
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if test -e "${j}" ; then
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config="${j}"
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break
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fi
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done
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if grep -Eqx "^CONFIG_ACRN_HSM=(y|m)" "${config}" 2> /dev/null; then
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linux_list="$linux_list $i"
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fi
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fi
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done
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file_is_not_sym () {
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case "$1" in
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*/acrn-syms-*)
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return 1;;
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*)
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return 0;;
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esac
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}
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# use ELF *.out files for multiboot
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acrn_out_list=
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for i in /boot/acrn*.out; do
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if grub_file_is_not_garbage "$i" && file_is_not_sym "$i" && grub-file --is-x86-multiboot "$i"; then
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acrn_out_list="$acrn_out_list $i"
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fi
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done
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# use raw binary *.bin files for multiboot2
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acrn_bin_list=
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for i in /boot/acrn*.bin; do
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if grub_file_is_not_garbage "$i" && file_is_not_sym "$i" && grub-file --is-x86-multiboot2 "$i"; then
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acrn_bin_list="$acrn_bin_list $i"
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fi
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done
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# we prefer multiboot2
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if [ "x${acrn_bin_list}" != "x" ]; then
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acrn_list="${acrn_bin_list}"
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acrn_loader="multiboot2"
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module_loader="module2"
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else
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acrn_list="${acrn_out_list}"
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acrn_loader="multiboot --quirk-modules-after-kernel"
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module_loader="module"
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fi
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# no ACRN binary found
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if [ "x${acrn_list}" = "x" ] ; then
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exit 0
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fi
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prepare_boot_cache=
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boot_device_id=
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acrn_first_entry=
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while [ "x${acrn_list}" != "x" ] ; do
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current_acrn=$(echo ${acrn_list} | tr ' ' '\n' | sed -e 's/\.old$/ 1/; / 1$/! s/$/ 2/' | LC_ALL=C sort -V -r | sed -e 's/ 1$/.old/; s/ 2$//' | head -n 1)
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acrn_basename=$(basename ${current_acrn})
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acrn_dirname=$(dirname ${current_acrn})
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rel_acrn_dirname=$(make_system_path_relative_to_its_root $acrn_dirname)
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acrn_version=$(echo $acrn_basename | sed -e "s,.out$,,g;s,.bin$,,g;s,^acrn-,,g")
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list="${linux_list}" # this is the list of possible ServiceVM kernels
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# no ACRN capable linux kernel, eventually add ACRN entry for partitioned system
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if ([ "x$list" = "x" ] || [ "x${ACRN_SERVICE_VM_ID}" = "x" ]) && [ "${ACRN_PRE_LAUNCHED_VM_COUNT}" != "0" ]; then
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if [ -z "${acrn_first_entry}" ]; then
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title="$(gettext_printf "%s with ACRN hypervisor" "${OS}")"
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acrn_first_entry="false"
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else
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title="$(gettext_printf "%s with ACRN hypervisor %s" "${OS}" "${acrn_version}")"
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fi
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echo "menuentry '$(echo "$title, with Linux ${version} (ACRN ${acrn_version})" | grub_quote)' ${CLASS} \$menuentry_id_option 'acrn-gnulinux-partitioned-${acrn_version}' {"
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message="$(gettext_printf "Loading ACRN hypervisor %s ..." ${acrn_version})"
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cat << EOF
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echo '$(echo "$message" | grub_quote)'
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${acrn_loader} ${rel_acrn_dirname}/${acrn_basename} ${GRUB_CMDLINE_ACRN}
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EOF
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add_prelaunched_vms
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echo "}"
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fi
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if [ -z "$boot_device_id" ]; then
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boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")"
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fi
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# only if we have at least one ACRN capable kernel and a Service VM entry defined
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while [ "x$list" != "x" ] && [ "x${ACRN_SERVICE_VM_ID}" != "x" ] ; do
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linux=$(echo ${list} | tr ' ' '\n' | sed -e 's/\.old$/ 1/; / 1$/! s/$/ 2/' | LC_ALL=C sort -V -r | sed -e 's/ 1$/.old/; s/ 2$//' | head -n 1)
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gettext_printf "Found ACRN linux image: %s\n" "$linux" >&2
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basename=$(basename $linux)
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dirname=$(dirname $linux)
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rel_dirname=$(make_system_path_relative_to_its_root $dirname)
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version=$(echo $basename | sed -e "s,^[^0-9]*-,,g")
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alt_version=$(echo $version | sed -e "s,\.old$,,g")
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linux_root_device_thisversion="${LINUX_ROOT_DEVICE}"
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initrd=
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for i in "initrd.img-${version}" "initrd-${version}.img" "initrd-${version}.gz" \
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"initrd-${version}" "initramfs-${version}.img" \
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"initrd.img-${alt_version}" "initrd-${alt_version}.img" \
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"initrd-${alt_version}" "initramfs-${alt_version}.img" \
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"initramfs-genkernel-${version}" \
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"initramfs-genkernel-${alt_version}" \
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"initramfs-genkernel-${GENKERNEL_ARCH}-${version}" \
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"initramfs-genkernel-${GENKERNEL_ARCH}-${alt_version}" ; do
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if test -e "${dirname}/${i}" ; then
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initrd="$i"
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break
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fi
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done
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if [ -n "${initrd}" ]; then
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if [ -z "$(eval echo \${ACRN_RAMDISK_MOD_VM${ACRN_SERVICE_VM_ID}})" ]; then
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# Use the found ramdisk despite we don't have a respective module tag
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# in ACRN configuration. This makes the UUID magic work and avoid the
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# problem of duplicated boot menu entries detected by os-prober when
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# using GRUB_DEVICE directly and running grub-mkconfig on such a system.
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gettext_printf "WARNING: Using ${initrd} despite ramdisk module tag of ACRN Service VM is not set.\n" >&2
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else
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gettext_printf "Found ACRN initrd image: %s\n" "${dirname}/${initrd}" >&2
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fi
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else
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gettext_printf "ACRN: No initrd image for ${ACRN_BOARD}:${ACRN_SCENARIO}\n" >&2
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# "UUID=" magic is parsed by initrds. Since there's no initrd, it can't work here.
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|
linux_root_device_thisversion=${GRUB_DEVICE}
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fi
|
|
|
|
linux_entry "${OS}" "${version}" "${acrn_version}" \
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"${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}" "${GRUB_CMDLINE_ACRN}"
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|
|
|
if [ -z "$boot_device_id" ]; then
|
|
boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")"
|
|
fi
|
|
|
|
list=$(echo $list | tr ' ' '\n' | fgrep -vx "$linux" | tr '\n' ' ')
|
|
done
|
|
acrn_list=$(echo $acrn_list | tr ' ' '\n' | fgrep -vx "$current_acrn" | tr '\n' ' ')
|
|
done
|
|
|
|
echo ""
|