516ab87ab9
Separate copyright bumps in a different commit. A lot of files only had the copyright change at this point; these were probably changes I added separatly in other patches but just split these in a different commit instead to simplify git stats Change-Id: I93cf3fc1c0fa04ee743a79c3fe9768933e6bd0d2
151 lines
4.6 KiB
Bash
151 lines
4.6 KiB
Bash
# mcoverlay-create-smp-x86.sh.in COPYRIGHT FUJITSU LIMITED 2018
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# Overlay /proc, /sys with McKernel specific contents
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#
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# Revert any state that has been initialized before the error occured.
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#
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if [ -z "$(declare -f error_exit)" ]; then
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error_exit() {
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local status=$1
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case $status in
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mcos_sys_mounted)
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if [ "$enable_mcoverlay" == "yes" ]; then
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umount /tmp/mcos/mcos0_sys
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fi
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;&
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mcos_proc_mounted)
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if [ "$enable_mcoverlay" == "yes" ]; then
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umount /tmp/mcos/mcos0_proc
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fi
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;&
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mcoverlayfs_loaded)
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if [ "$enable_mcoverlay" == "yes" ]; then
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rmmod mcoverlay 2>/dev/null
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fi
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;&
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linux_proc_bind_mounted)
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if [ "$enable_mcoverlay" == "yes" ]; then
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umount /tmp/mcos/linux_proc
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fi
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;&
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tmp_mcos_mounted)
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if [ "$enable_mcoverlay" == "yes" ]; then
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umount /tmp/mcos
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fi
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;&
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tmp_mcos_created)
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if [ "$enable_mcoverlay" == "yes" ]; then
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rm -rf /tmp/mcos
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fi
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;&
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initial)
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# Nothing more to revert
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;;
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esac
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# Retun -EINVAL
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exit -22
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}
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fi
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if [ ! -e /tmp/mcos ]; then
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mkdir -p /tmp/mcos;
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fi
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if ! mount -t tmpfs tmpfs /tmp/mcos; then
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echo "error: mount /tmp/mcos" >&2
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error_exit "tmp_mcos_created"
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fi
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if [ ! -e /tmp/mcos/linux_proc ]; then
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mkdir -p /tmp/mcos/linux_proc;
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fi
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if ! mount --bind /proc /tmp/mcos/linux_proc; then
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echo "error: mount /tmp/mcos/linux_proc" >&2
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error_exit "tmp_mcos_mounted"
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fi
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if ! taskset -c 0 insmod @KMODDIR@/mcoverlay.ko 2>/dev/null; then
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echo "error: inserting mcoverlay.ko" >&2
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error_exit "linux_proc_bind_mounted"
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fi
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while [ ! -e /proc/mcos0 ]
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do
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sleep 0.1
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done
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if [ ! -e /tmp/mcos/mcos0_proc ]; then
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mkdir -p /tmp/mcos/mcos0_proc;
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fi
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if [ ! -e /tmp/mcos/mcos0_proc_upper ]; then
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mkdir -p /tmp/mcos/mcos0_proc_upper;
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fi
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if [ ! -e /tmp/mcos/mcos0_proc_work ]; then
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mkdir -p /tmp/mcos/mcos0_proc_work;
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fi
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if ! mount -t mcoverlay mcoverlay -o lowerdir=/proc/mcos0:/proc,upperdir=/tmp/mcos/mcos0_proc_upper,workdir=/tmp/mcos/mcos0_proc_work,nocopyupw,nofscheck /tmp/mcos/mcos0_proc; then
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echo "error: mounting /tmp/mcos/mcos0_proc" >&2
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error_exit "mcoverlayfs_loaded"
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fi
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# TODO: How de we revert this in case of failure??
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mount --make-rprivate /proc
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while [ ! -e /sys/devices/virtual/mcos/mcos0/sys/setup_complete ]
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do
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sleep 0.1
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done
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if [ ! -e /tmp/mcos/mcos0_sys ]; then
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mkdir -p /tmp/mcos/mcos0_sys;
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fi
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if [ ! -e /tmp/mcos/mcos0_sys_upper ]; then
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mkdir -p /tmp/mcos/mcos0_sys_upper;
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fi
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if [ ! -e /tmp/mcos/mcos0_sys_work ]; then
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mkdir -p /tmp/mcos/mcos0_sys_work;
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fi
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if ! mount -t mcoverlay mcoverlay -o lowerdir=/sys/devices/virtual/mcos/mcos0/sys:/sys,upperdir=/tmp/mcos/mcos0_sys_upper,workdir=/tmp/mcos/mcos0_sys_work,nocopyupw,nofscheck /tmp/mcos/mcos0_sys; then
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echo "error: mount /tmp/mcos/mcos0_sys" >&2
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error_exit "mcos_proc_mounted"
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fi
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# TODO: How de we revert this in case of failure??
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mount --make-rprivate /sys
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touch /tmp/mcos/mcos0_proc/mckernel
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rm -rf /tmp/mcos/mcos0_sys/setup_complete
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# Hide NUMA related files which are outside the LWK partition
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for cpuid in `find /sys/devices/system/cpu/* -maxdepth 0 -name "cpu[0123456789]*" -printf "%f "`; do
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if [ ! -e "/sys/devices/virtual/mcos/mcos0/sys/devices/system/cpu/$cpuid" ]; then
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rm -rf /tmp/mcos/mcos0_sys/devices/system/cpu/$cpuid
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rm -rf /tmp/mcos/mcos0_sys/bus/cpu/devices/$cpuid
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rm -rf /tmp/mcos/mcos0_sys/bus/cpu/drivers/processor/$cpuid
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else
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for nodeid in `find /sys/devices/system/cpu/$cpuid/* -maxdepth 0 -name "node[0123456789]*" -printf "%f "`; do
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if [ ! -e "/sys/devices/virtual/mcos/mcos0/sys/devices/system/cpu/$cpuid/$nodeid" ]; then
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rm -f /tmp/mcos/mcos0_sys/devices/system/cpu/$cpuid/$nodeid
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fi
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done
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fi
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done
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for nodeid in `find /sys/devices/system/node/* -maxdepth 0 -name "node[0123456789]*" -printf "%f "`; do
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if [ ! -e "/sys/devices/virtual/mcos/mcos0/sys/devices/system/node/$nodeid" ]; then
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rm -rf /tmp/mcos/mcos0_sys/devices/system/node/$nodeid/*
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rm -rf /tmp/mcos/mcos0_sys/bus/node/devices/$nodeid
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else
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# Delete non-existent symlinks
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for cpuid in `find /sys/devices/system/node/$nodeid/* -maxdepth 0 -name "cpu[0123456789]*" -printf "%f "`; do
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if [ ! -e "/sys/devices/virtual/mcos/mcos0/sys/devices/system/node/$nodeid/$cpuid" ]; then
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rm -f /tmp/mcos/mcos0_sys/devices/system/node/$nodeid/$cpuid
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fi
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done
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rm -f /tmp/mcos/mcos0_sys/devices/system/node/$nodeid/memory*
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fi
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done
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rm -f /tmp/mcos/mcos0_sys/devices/system/node/has_*
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for cpuid in `find /sys/bus/cpu/devices/* -maxdepth 0 -name "cpu[0123456789]*" -printf "%f "`; do
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if [ ! -e "/sys/devices/virtual/mcos/mcos0/sys/bus/cpu/devices/$cpuid" ]; then
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rm -rf /tmp/mcos/mcos0_sys/bus/cpu/devices/$cpuid
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fi
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done
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exit 0
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