peter/spectre-meltdown-checker
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spectre-meltdown-checker
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Merge ef37fd6322 into 0aa5857a76

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jack 2018-01-21 15:13:21 +00:00 committed by GitHub
parent 0aa5857a76 ef37fd6322
commit 8939a7847f
1 changed files with 4 additions and 1 deletions
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spectre-meltdown-checker.sh
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@ -1113,7 +1113,10 @@ check_variant3()
dmesg_grep="Kernel/User page tables isolation: enabled"
dmesg_grep="$dmesg_grep|Kernel page table isolation enabled"
dmesg_grep="$dmesg_grep|x86/pti: Unmapping kernel while in userspace"
if grep ^flags /proc/cpuinfo | grep -qw pti; then
if grep -q -e pti=off -e nopti /proc/cmdline && ! [ -e /sys/kernel/debug/x86/pti_enabled ]; then
_debug "kpti disabled on command line : pti=off or nopti in /proc/cmdlin"
kpti_enabled=0
elif grep ^flags /proc/cpuinfo | grep -qw pti; then
# vanilla PTI patch sets the 'pti' flag in cpuinfo
_debug "kpti_enabled: found 'pti' flag in /proc/cpuinfo"
kpti_enabled=1