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