peter/spectre-meltdown-checker
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spectre-meltdown-checker
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Whitelist variant4 nonvuln Arms

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Rob Gill 2018-06-12 08:03:37 +10:00 committed by GitHub
parent ecff9b929e
commit 9851133a25
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1 changed files with 7 additions and 4 deletions
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spectre-meltdown-checker.sh
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@ -381,13 +381,16 @@ is_cpu_vulnerable()
[ -z "$variant3a" ] && variant3a=immune
fi
# for variant4, only A57-72-73-75 are vulnerable
if [ "$cpuarch" = 8 ]; then
# for variant4, arch 7 immune, arch 8 A57-72-73-75-76 are vulnerable
if [ "$cpuarch" = 7 ] && echo "$cpupart" | grep -Eq '^0x(c0[89cfe])$'; then
_debug "checking cpu$i: arm A8-A9-A12-A15-A17 non vulnerable to variant4"
variant4=immune
elif [ "$cpuarch" = 8 ]; then
_debug "checking cpu$i: arm A57-A72-A73-A75-A76 vulnerable to variant4"
variant4=vuln
else
_debug "checking cpu$i: this arm non vulnerable to variant4"
[ -z "$variant4" ] && variant4=immune
_debug "checking cpu$i: unknown arm processor assumed vulnerable to variant4"
[ -z "$variant4" ] && variant4=vulnerable
fi
fi
_debug "is_cpu_vulnerable: for cpu$i and so far, we have <$variant1> <$variant2> <$variant3> <$variant3a> <$variant4>"