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22 lines
556 B
22 lines
556 B
#! /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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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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