3 ##############################################################################
4 ## Copyright (c) 2015 Intel Corp.
6 ## All rights reserved. This program and the accompanying materials
7 ## are made available under the terms of the Apache License, Version 2.0
8 ## which accompanies this distribution, and is available at
9 ## http://www.apache.org/licenses/LICENSE-2.0
10 ###############################################################################
14 rpmdir=${1:-"/root/workspace/rpm/"}
15 rpmpat="kernel-4.4*.rpm"
21 if grep '[" ]'${key} /etc/default/grub > /dev/null ; then
22 sed -i 's/\([" ]\)'${key}'=[^ "]*/\1'${key}'='${val}'/' /etc/default/grub
24 sed -i 's/GRUB_CMDLINE_LINUX="\(.*\)"/GRUB_CMDLINE_LINUX="\1 '${key}'='${val}'"/' /etc/default/grub
28 # The script's caller should passing the rpm directory that is built out from
29 # build.sh. The default rpmdir is the one used by yardstick scripts.
31 # Install the kernel rpm
32 filenum=`ls -l ${rpmdir}/${rpmpat} |wc -l`
35 echo "No kernel rpm found in workspace/rpm"
37 elif [ $filenum -gt 1 ]
39 echo "Multiple kernel rpm found in workspace/rpm"
42 krpm=`find "${rpmdir}" -name "${rpmpat}"`
47 # Isolate CPUs from the general scheduler
48 config_grub 'isolcpus' ${host_isolcpus}
50 # Stop timer ticks on isolated CPUs whenever possible
51 config_grub 'nohz_full' ${host_isolcpus}
53 # Do not call RCU callbacks on isolated CPUs
54 config_grub 'rcu_nocbs' ${host_isolcpus}
56 # Enable intel iommu driver and disable DMA translation for devices
57 config_grub 'iommu' 'pt'
58 config_grub 'intel_iommu' 'on'
60 # Set HugeTLB pages to 1GB
61 config_grub 'default_hugepagesz' '1G'
62 config_grub 'hugepagesz' '1G'
64 # Disable machine check
65 config_grub 'mce' 'off'
67 ## Use polling idle loop to improve performance
68 config_grub 'idle' 'poll'
70 ## Disable clocksource verification at runtime
71 config_grub 'tsc' 'reliable'
73 grub2-mkconfig -o /boot/grub2/grub.cfg