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adffd3f8b6
Not all distros have `/bin/bash`, e.g. NixOS. Fixes: #3450 Signed-off-by: Sebastian Hasler <sebastian.hasler@stuvus.uni-stuttgart.de>
25 lines
744 B
Bash
25 lines
744 B
Bash
#!/usr/bin/env bash
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# Copyright (c) 2019 Intel Corporation
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# Description: Offline SOS CPUs except BSP before launch UOS
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[ $(id -u) -eq 0 ] || { echo >&2 "ERROR: run as root"; exit 1; }
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for i in $(ls -d /sys/devices/system/cpu/cpu[1-9]*); do
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online=`cat $i/online`
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idx=`echo $i | tr -cd "[0-9]"`
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echo "INFO:$0: cpu$idx online=$online"
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if [ "$online" = "1" ]; then
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echo 0 > $i/online
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while [ "$online" = "1" ]; do
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sleep 1
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echo 0 > $i/online
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online=`cat $i/online`
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done
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echo $idx > /sys/class/vhm/acrn_vhm/offline_cpu
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fi
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done
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