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| author | Stéphane Lesimple <speed47_github@speed47.net> | 2018-01-24 12:18:56 +0100 |
|---|---|---|
| committer | Stéphane Lesimple <speed47_github@speed47.net> | 2018-01-24 12:18:56 +0100 |
| commit | 3c1d452c99a11707900a7192a73d6367e6f0724f (patch) | |
| tree | ac2c4e493049d5fe44feda8e7985e8dd31fefa46 | |
| parent | 53b9eda0406019ad09987b4b08c390b2e94282ba (diff) | |
| download | spectre-meltdown-checker-3c1d452c99a11707900a7192a73d6367e6f0724f.tar.lz spectre-meltdown-checker-3c1d452c99a11707900a7192a73d6367e6f0724f.tar.xz spectre-meltdown-checker-3c1d452c99a11707900a7192a73d6367e6f0724f.zip | |
fix(cpuid): fix off-by-one SPEC_CTRL bit check
| -rwxr-xr-x | spectre-meltdown-checker.sh | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/spectre-meltdown-checker.sh b/spectre-meltdown-checker.sh index a275c5d..906646a 100755 --- a/spectre-meltdown-checker.sh +++ b/spectre-meltdown-checker.sh @@ -917,9 +917,9 @@ check_variant2() # getting high byte of edx on leaf7 of cpuinfo in decimal edx_hb=$(dd if=/dev/cpu/0/cpuid bs=16 skip=7 iflag=skip_bytes count=1 2>/dev/null | dd bs=1 skip=15 count=1 2>/dev/null | od -t u -A n | awk '{print $1}') _debug "cpuid: leaf7 edx higher byte: $edx_hb (decimal)" - edx_bit26=$(( edx_hb & 8 )) + edx_bit26=$(( edx_hb & 4 )) _debug "cpuid: edx_bit26=$edx_bit26" - if [ "$edx_bit26" -eq 8 ]; then + if [ "$edx_bit26" -eq 4 ]; then pstatus green YES "SPEC_CTRL feature bit" cpuid_spec_ctrl=1 else |