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#!/bin/bash
# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the MIT License. See the LICENSE accompanying this file
# for the specific language governing permissions and limitations under
# the License.
if [ "$#" -ne 1 ] ; then
echo "$0 <device path>" >&2
exit 1
fi
grep -qE '\bmaxcpus=' /proc/cmdline
if [ "$?" -ne 1 ]; then
echo "maxcpus set, not bringing up additional cpus" >&2
exit 2
fi
if [ ! -e /sys$1/online ]; then
echo "/sys$1/online does not exist" >&2
exit 3
fi
echo 1 > /sys$1/online
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