80 lines
3.6 KiB
Bash
80 lines
3.6 KiB
Bash
#!/bin/bash
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# IHK SMP-x86 example boot script.
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# author: Balazs Gerofi <bgerofi@riken.jp>
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# Copyright (C) 2014 RIKEN AICS
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#
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# This is an example script for loading IHK, configuring a partition and
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# booting McKernel on it.
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# The script reserves half of the CPU cores and 512MB of RAM from NUMA node 0
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# when IHK is loaded for the first time, otherwise it destroys the current
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# McKernel instance and reboots it using the same set of resources as it used
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# previously.
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# Note that the script does not output anything unless an error occurs.
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prefix="@prefix@"
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BINDIR="@BINDIR@"
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SBINDIR="@SBINDIR@"
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KMODDIR="@KMODDIR@"
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KERNDIR="@KERNDIR@"
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mem="512M@0"
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# Get the number of CPUs on NUMA node 0
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nr_cpus=`lscpu --parse | awk -F"," '{if ($4 == 0) print $4}' | wc -l`
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# Use the second half of the cores
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let nr_cpus="$nr_cpus / 2"
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cpus=`lscpu --parse | awk -F"," '{if ($4 == 0) print $1}' | tail -n $nr_cpus | xargs echo -n | sed 's/ /,/g'`
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if [ "$cpus" == "" ]; then echo "error: no available CPUs on NUMA node 0?"; exit; fi
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# Remove delegator if loaded
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if [ "`lsmod | grep mcctrl`" != "" ]; then
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if ! rmmod mcctrl; then echo "error: removing mcctrl"; exit; fi
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fi
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# Load IHK if not loaded
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if [ "`lsmod | grep ihk`" == "" ]; then
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if ! insmod ${KMODDIR}/ihk.ko; then echo "error: loading ihk"; exit; fi;
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fi
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# Load IHK-SMP if not loaded and reserve CPUs and memory
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if [ "`lsmod | grep ihk_smp_x86`" == "" ]; then
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ihk_irq=""
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for i in `seq 64 255`; do
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if [ ! -d /proc/irq/$i ] && [ "`cat /proc/interrupts | grep ":" | awk '{print $1}' | grep -o '[0-9]*' | grep $i`" == "" ]; then
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ihk_irq=$i
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break
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fi
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done
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if [ "$ihk_irq" == "" ]; then echo "error: no IRQ available"; exit; fi
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if ! insmod ${KMODDIR}/ihk-smp-x86.ko ihk_start_irq=$ihk_irq; then echo "error: loading ihk-smp-x86"; exit; fi;
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if ! ${SBINDIR}/ihkconfig 0 reserve cpu ${cpus}; then echo "error: reserving CPUs"; exit; fi
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if ! ${SBINDIR}/ihkconfig 0 reserve mem ${mem}; then echo "error: reserving memory"; exit; fi
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fi
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# Check for existing OS instance and destroy
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if [ -c /dev/mcos0 ]; then
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# Query CPU cores and memory of OS instance so that the same values are used as previously
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if ! ${SBINDIR}/ihkosctl 0 query cpu > /dev/null; then echo "error: querying cpus"; exit; fi
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cpus=`${SBINDIR}/ihkosctl 0 query cpu`
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if ! ${SBINDIR}/ihkosctl 0 query mem > /dev/null; then echo "error: querying memory"; exit; fi
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mem=`${SBINDIR}/ihkosctl 0 query mem`
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if ! ${SBINDIR}/ihkconfig 0 destroy 0; then echo "warning: destroy failed"; fi
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else
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# Otherwise query IHK-SMP for resources
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if ! ${SBINDIR}/ihkconfig 0 query cpu > /dev/null; then echo "error: querying cpus"; exit; fi
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cpus=`${SBINDIR}/ihkconfig 0 query cpu`
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if ! ${SBINDIR}/ihkconfig 0 query mem > /dev/null; then echo "error: querying memory"; exit; fi
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mem=`${SBINDIR}/ihkconfig 0 query mem`
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fi
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if ! ${SBINDIR}/ihkconfig 0 create; then echo "error: create"; exit; fi
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if ! ${SBINDIR}/ihkosctl 0 assign cpu ${cpus}; then echo "error: assign CPUs"; exit; fi
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if ! ${SBINDIR}/ihkosctl 0 assign mem ${mem}; then echo "error: assign memory"; exit; fi
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if ! ${SBINDIR}/ihkosctl 0 load ${KERNDIR}/mckernel.img; then echo "error: loading kernel image"; exit; fi
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if ! ${SBINDIR}/ihkosctl 0 kargs hidos; then echo "error: setting kernel arguments"; exit; fi
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if ! ${SBINDIR}/ihkosctl 0 boot; then echo "error: booting"; exit; fi
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if ! insmod ${KMODDIR}/mcctrl.ko; then echo "error: inserting mcctrl.ko"; exit; fi
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