peter/spectre-meltdown-checker
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adjust: show how to enable IBRS/IBPB in -v only

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Stéphane Lesimple 2018-01-29 11:06:15 +01:00
parent 9b53635eda
commit 90a65965ff
1 changed files with 19 additions and 4 deletions
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23
spectre-meltdown-checker.sh
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@ -8,7 +8,7 @@
# #
# Stephane Lesimple # Stephane Lesimple
# #
VERSION=0.33 VERSION='0.33+'
show_usage() show_usage()
{ {
@ -1281,7 +1281,12 @@ check_variant2()
pstatus red NO pstatus red NO
fi fi
;; ;;
0) pstatus red NO "echo 1 > $ibrs_knob_dir/ibrs_enabled";; 0)
pstatus red NO
if [ "$opt_verbose" -ge 2 ]; then
_info " - To enable, \`echo 1 > $ibrs_knob_dir/ibrs_enabled' as root. If you don't have hardware support, you'll get an error."
fi
;;
1 | 2) pstatus green YES;; 1 | 2) pstatus green YES;;
*) pstatus yellow UNKNOWN;; *) pstatus yellow UNKNOWN;;
esac esac
@ -1304,7 +1309,12 @@ check_variant2()
pstatus red NO pstatus red NO
fi fi
;; ;;
0 | 1) pstatus red NO "echo 2 > $ibrs_knob_dir/ibrs_enabled";; 0 | 1)
pstatus red NO
if [ "$opt_verbose" -ge 2 ]; then
_info " - To enable, \`echo 2 > $ibrs_knob_dir/ibrs_enabled' as root. If you don't have hardware support, you'll get an error."
fi
;;
2) pstatus green YES;; 2) pstatus green YES;;
*) pstatus yellow UNKNOWN;; *) pstatus yellow UNKNOWN;;
esac esac
@ -1323,7 +1333,12 @@ check_variant2()
pstatus red NO pstatus red NO
fi fi
;; ;;
0) pstatus red NO "echo 1 > $ibrs_knob_dir/ibpb_enabled";; 0)
pstatus red NO
if [ "$opt_verbose" -ge 2 ]; then
_info " - To enable, \`echo 1 > $ibrs_knob_dir/ibpb_enabled' as root. If you don't have hardware support, you'll get an error."
fi
;;
1) pstatus green YES;; 1) pstatus green YES;;
2) pstatus green YES "IBPB used instead of IBRS in all kernel entrypoints";; 2) pstatus green YES "IBPB used instead of IBRS in all kernel entrypoints";;
*) pstatus yellow UNKNOWN;; *) pstatus yellow UNKNOWN;;