23 lines
556 B
Bash
23 lines
556 B
Bash
#! /bin/bash -efu
|
|
|
|
# Trigger microcode reload with additional check for BDW-EP that can have
|
|
# microcode reloaded only in case kernel has specific patches.
|
|
#
|
|
# SPDX-License-Identifier: CC0-1.0
|
|
|
|
CHECK_CAVEATS=/usr/libexec/microcode_ctl/check_caveats
|
|
IGNORE_HYPERVISOR="/etc/microcode_ctl/ignore-hypervisor-flag"
|
|
|
|
[ -e "$IGNORE_HYPERVISOR" ] || {
|
|
if grep -q '^flags[[:space:]]*:.* hypervisor\( .*\)\?$' /proc/cpuinfo
|
|
then
|
|
exit 0
|
|
fi
|
|
}
|
|
|
|
"$CHECK_CAVEATS" -m > /dev/null || exit 0
|
|
|
|
echo 2>/dev/null 1 > /sys/devices/system/cpu/microcode/reload || :
|
|
|
|
exit 0
|