peter/spectre-meltdown-checker
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spectre-meltdown-checker
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fix: don't show erroneous ucode version when latest version is unknown (fixes #238)

This commit is contained in:
Stéphane Lesimple 2018-08-28 20:51:34 +02:00
parent e8890ffac6
commit 80e0db7cc4
1 changed files with 2 additions and 2 deletions
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spectre-meltdown-checker.sh
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@ -1278,7 +1278,7 @@ is_latest_known_ucode()
{ {
# 0: yes, 1: no, 2: unknown # 0: yes, 1: no, 2: unknown
parse_cpu_details parse_cpu_details
ucode_latest="latest microcode version of your CPU is not known to this script" ucode_latest="latest microcode version for your CPU model is unknown"
is_intel || return 2 is_intel || return 2
# https://www.intel.com/content/dam/www/public/us/en/documents/sa00115-microcode-update-guidance.pdf # https://www.intel.com/content/dam/www/public/us/en/documents/sa00115-microcode-update-guidance.pdf
# ps2txt sa00115-microcode-update-guidance.ps | grep -Eo '[0-9A-F]+ [0-9A-F]+ [^ ]+ Production 0x[A-F0-9]+ 0x[^ ]+' | awk '{print "0x"$1","$6" \\"}' | uniq # ps2txt sa00115-microcode-update-guidance.ps | grep -Eo '[0-9A-F]+ [0-9A-F]+ [^ ]+ Production 0x[A-F0-9]+ 0x[^ ]+' | awk '{print "0x"$1","$6" \\"}' | uniq
@ -1323,9 +1323,9 @@ is_latest_known_ucode()
do do
cpuid_decimal=$(( $(echo "$tuple" | cut -d, -f1) )) cpuid_decimal=$(( $(echo "$tuple" | cut -d, -f1) ))
ucode_decimal=$(( $(echo "$tuple" | cut -d, -f2) )) ucode_decimal=$(( $(echo "$tuple" | cut -d, -f2) ))
ucode_latest=$(printf "you have version 0x%x and latest known version is 0x%x" "$cpu_ucode" "$ucode_decimal")
if [ "$cpuid_decimal" = "$cpu_cpuid" ]; then if [ "$cpuid_decimal" = "$cpu_cpuid" ]; then
_debug "is_latest_known_ucode: with cpuid $cpu_cpuid has ucode $cpu_ucode, last known is $cpuid_decimal" _debug "is_latest_known_ucode: with cpuid $cpu_cpuid has ucode $cpu_ucode, last known is $cpuid_decimal"
ucode_latest=$(printf "latest known version is 0x%x according to Intel Microcode Guidance, August 8 2018" "$ucode_decimal")
if [ "$cpu_ucode" -ge "$ucode_decimal" ]; then if [ "$cpu_ucode" -ge "$ucode_decimal" ]; then
return 0 return 0
else else