Files
kata-containers/how-to/offline_cpu.sh
Vijay Dhanraj 4f0259424e doc: how-to on Kata Containers with ACRN hypervisor
Start-up guide on setting up kata containers
with ACRN hypervisor.

Fixes: #535

Signed-off-by: Vijay Dhanraj <vijay.dhanraj@intel.com>
2019-09-04 09:27:43 -07:00

25 lines
736 B
Bash

#!/bin/bash
# Copyright (c) 2019 Intel Corporation
#
# SPDX-License-Identifier: Apache-2.0
#
# Description: Offline SOS CPUs except BSP before launch UOS
[ $(id -u) -eq 0 ] || { echo >&2 "ERROR: run as root"; exit 1; }
for i in $(ls -d /sys/devices/system/cpu/cpu[1-9]*); do
online=`cat $i/online`
idx=`echo $i | tr -cd "[0-9]"`
echo "INFO:$0: cpu$idx online=$online"
if [ "$online" = "1" ]; then
echo 0 > $i/online
while [ "$online" = "1" ]; do
sleep 1
echo 0 > $i/online
online=`cat $i/online`
done
echo $idx > /sys/class/vhm/acrn_vhm/offline_cpu
fi
done